-/* Simulator/Opcode generator for the Hitachi Super-H architecture.
+/* Simulator/Opcode generator for the Renesas
+ (formerly Hitachi) / SuperH Inc. Super-H architecture.
Written by Steve Chamberlain of Cygnus Support.
sac@cygnus.com
- This file is part of SH sim
+ This file is part of SH sim.
THIS SOFTWARE IS NOT COPYRIGHTED
*/
/* This program generates the opcode table for the assembler and
- the simulator code
+ the simulator code.
-t prints a pretty table for the assembler manual
-s generates the simulator code jump table
-d generates a define table
-x generates the simulator code switch statement
- default generates the opcode tables
+ default used to generate the opcode tables
*/
#include <stdio.h>
-#define MAX_NR_STUFF 20
+#define MAX_NR_STUFF 42
typedef struct
{
char *code;
char *stuff[MAX_NR_STUFF];
int index;
-}
-
-op;
+} op;
op tab[] =
{
{ "n", "", "add #<imm>,<REG_N>", "0111nnnni8*1....",
- "R[n] += SEXT(i);",
+ "R[n] += SEXT (i);",
"if (i == 0) {",
" UNDEF(n); /* see #ifdef PARANOID */",
" break;",
"R[n] = ult;",
},
- { "0", "", "and #<imm>,R0", "11001001i8*1....",
+ { "0", "0", "and #<imm>,R0", "11001001i8*1....",
"R0 &= i;",
},
{ "n", "nm", "and <REG_M>,<REG_N>", "0010nnnnmmmm1001",
},
{ "", "", "bf <bdisp8>", "10001011i8p1....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"if (!T) {",
- " nia = PC + 4 + (SEXT(i) * 2);",
+ " SET_NIP (PC + 4 + (SEXT (i) * 2));",
" cycles += 2;",
"}",
},
{ "", "", "bf.s <bdisp8>", "10001111i8p1....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"if (!T) {",
- " nia = PC + 4 + (SEXT (i) * 2);",
+ " SET_NIP (PC + 4 + (SEXT (i) * 2));",
" cycles += 2;",
" Delay_Slot (PC + 2);",
"}",
},
+ { "", "n", "bit32 #imm3,@(disp12,<REG_N>)", "0011nnnni8*11001",
+ "/* 32-bit logical bit-manipulation instructions. */",
+ "int word2 = RIAT (nip);",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "i >>= 4; /* BOGUS: Using only three bits of 'i'. */",
+ "/* MSB of 'i' must be zero. */",
+ "if (i > 7)",
+ " RAISE_EXCEPTION (SIGILL);",
+ "MA (1);",
+ "do_blog_insn (1 << i, (word2 & 0xfff) + R[n], ",
+ " (word2 >> 12) & 0xf, memory, maskb);",
+ "SET_NIP (nip + 2); /* Consume 2 more bytes. */",
+ },
{ "", "", "bra <bdisp12>", "1010i12.........",
- "nia = PC + 4 + (SEXT12 (i) * 2);",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "SET_NIP (PC + 4 + (SEXT12 (i) * 2));",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
{ "", "n", "braf <REG_N>", "0000nnnn00100011",
- "nia = PC + 4 + R[n];",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "SET_NIP (PC + 4 + R[n]);",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
{ "", "", "bsr <bdisp12>", "1011i12.........",
- "PR = PC + 4;",
- "nia = PC + 4 + (SEXT12 (i) * 2);",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "PR = PH2T (PC + 4);",
+ "SET_NIP (PC + 4 + (SEXT12 (i) * 2));",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
{ "", "n", "bsrf <REG_N>", "0000nnnn00000011",
- "PR = PC + 4;",
- "nia = PC + 4 + R[n];",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "PR = PH2T (PC) + 4;",
+ "SET_NIP (PC + 4 + R[n]);",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
{ "", "", "bt <bdisp8>", "10001001i8p1....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"if (T) {",
- " nia = PC + 4 + (SEXT (i) * 2);",
+ " SET_NIP (PC + 4 + (SEXT (i) * 2));",
" cycles += 2;",
"}",
},
+
+ { "", "m", "bld/st #<imm>, <REG_M>", "10000111mmmmi4*1",
+ "/* MSB of 'i' is true for load, false for store. */",
+ "if (i <= 7)",
+ " if (T)",
+ " R[m] |= (1 << i);",
+ " else",
+ " R[m] &= ~(1 << i);",
+ "else",
+ " SET_SR_T ((R[m] & (1 << (i - 8))) != 0);",
+ },
+ { "m", "m", "bset/clr #<imm>, <REG_M>", "10000110mmmmi4*1",
+ "/* MSB of 'i' is true for set, false for clear. */",
+ "if (i <= 7)",
+ " R[m] &= ~(1 << i);",
+ "else",
+ " R[m] |= (1 << (i - 8));",
+ },
+ { "n", "n", "clips.b <REG_N>", "0100nnnn10010001",
+ "if (R[n] < -128 || R[n] > 127) {",
+ " L (n);",
+ " SET_SR_CS (1);",
+ " if (R[n] > 127)",
+ " R[n] = 127;",
+ " else if (R[n] < -128)",
+ " R[n] = -128;",
+ "}",
+ },
+ { "n", "n", "clips.w <REG_N>", "0100nnnn10010101",
+ "if (R[n] < -32768 || R[n] > 32767) {",
+ " L (n);",
+ " SET_SR_CS (1);",
+ " if (R[n] > 32767)",
+ " R[n] = 32767;",
+ " else if (R[n] < -32768)",
+ " R[n] = -32768;",
+ "}",
+ },
+ { "n", "n", "clipu.b <REG_N>", "0100nnnn10000001",
+ "if (R[n] < -256 || R[n] > 255) {",
+ " L (n);",
+ " SET_SR_CS (1);",
+ " R[n] = 255;",
+ "}",
+ },
+ { "n", "n", "clipu.w <REG_N>", "0100nnnn10000101",
+ "if (R[n] < -65536 || R[n] > 65535) {",
+ " L (n);",
+ " SET_SR_CS (1);",
+ " R[n] = 65535;",
+ "}",
+ },
+ { "n", "0n", "divs R0,<REG_N>", "0100nnnn10010100",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "if (R0 == 0)",
+ " R[n] = 0x7fffffff;",
+ "else if (R0 == -1 && R[n] == 0x80000000)",
+ " R[n] = 0x7fffffff;",
+ "else R[n] /= R0;",
+ "L (n);",
+ },
+ { "n", "0n", "divu R0,<REG_N>", "0100nnnn10000100",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "if (R0 == 0)",
+ " R[n] = 0xffffffff;",
+ "/* FIXME: The result may be implementation-defined if it is outside */",
+ "/* the range of signed int (i.e. if R[n] was negative and R0 == 1). */",
+ "else R[n] = R[n] / (unsigned int) R0;",
+ "L (n);",
+ },
+ { "n", "0n", "mulr R0,<REG_N>", "0100nnnn10000000",
+ "R[n] = (R[n] * R0) & 0xffffffff;",
+ "L (n);",
+ },
+ { "0", "n", "ldbank @<REG_N>,R0", "0100nnnn11100101",
+ "int regn = (R[n] >> 2) & 0x1f;",
+ "int bankn = (R[n] >> 7) & 0x1ff;",
+ "if (regn > 19)",
+ " regn = 19; /* FIXME what should happen? */",
+ "R0 = saved_state.asregs.regstack[bankn].regs[regn];",
+ "L (0);",
+ },
+ { "", "0n", "stbank R0,@<REG_N>", "0100nnnn11100001",
+ "int regn = (R[n] >> 2) & 0x1f;",
+ "int bankn = (R[n] >> 7) & 0x1ff;",
+ "if (regn > 19)",
+ " regn = 19; /* FIXME what should happen? */",
+ "saved_state.asregs.regstack[bankn].regs[regn] = R0;",
+ },
+ { "", "", "resbank", "0000000001011011",
+ "int i;",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ /* FIXME: cdef all */
+ "if (BO) { /* Bank Overflow */",
+ /* FIXME: how do we know when to reset BO? */
+ " for (i = 0; i <= 14; i++) {",
+ " R[i] = RLAT (R[15]);",
+ " MA (1);",
+ " R[15] += 4;",
+ " }",
+ " PR = RLAT (R[15]);",
+ " R[15] += 4;",
+ " MA (1);",
+ " GBR = RLAT (R[15]);",
+ " R[15] += 4;",
+ " MA (1);",
+ " MACH = RLAT (R[15]);",
+ " R[15] += 4;",
+ " MA (1);",
+ " MACL = RLAT (R[15]);",
+ " R[15] += 4;",
+ " MA (1);",
+ "}",
+ "else if (BANKN == 0) /* Bank Underflow */",
+ " RAISE_EXCEPTION (SIGILL);", /* FIXME: what exception? */
+ "else {",
+ " SET_BANKN (BANKN - 1);",
+ " for (i = 0; i <= 14; i++)",
+ " R[i] = saved_state.asregs.regstack[BANKN].regs[i];",
+ " MACH = saved_state.asregs.regstack[BANKN].regs[15];",
+ " PR = saved_state.asregs.regstack[BANKN].regs[17];",
+ " GBR = saved_state.asregs.regstack[BANKN].regs[18];",
+ " MACL = saved_state.asregs.regstack[BANKN].regs[19];",
+ "}",
+ },
+ { "f", "f-", "movml.l <REG_N>,@-R15", "0100nnnn11110001",
+ "/* Push Rn...R0 (if n==15, push pr and R14...R0). */",
+ "do {",
+ " MA (1);",
+ " R[15] -= 4;",
+ " if (n == 15)",
+ " WLAT (R[15], PR);",
+ " else",
+ " WLAT (R[15], R[n]);",
+ "} while (n-- > 0);",
+ },
+ { "f", "f+", "movml.l @R15+,<REG_N>", "0100nnnn11110101",
+ "/* Pop R0...Rn (if n==15, pop R0...R14 and pr). */",
+ "int i = 0;\n",
+ "do {",
+ " MA (1);",
+ " if (i == 15)",
+ " PR = RLAT (R[15]);",
+ " else",
+ " R[i] = RLAT (R[15]);",
+ " R[15] += 4;",
+ "} while (i++ < n);",
+ },
+ { "f", "f-", "movmu.l <REG_N>,@-R15", "0100nnnn11110000",
+ "/* Push pr, R14...Rn (if n==15, push pr). */", /* FIXME */
+ "int i = 15;\n",
+ "do {",
+ " MA (1);",
+ " R[15] -= 4;",
+ " if (i == 15)",
+ " WLAT (R[15], PR);",
+ " else",
+ " WLAT (R[15], R[i]);",
+ "} while (i-- > n);",
+ },
+ { "f", "f+", "movmu.l @R15+,<REG_N>", "0100nnnn11110100",
+ "/* Pop Rn...R14, pr (if n==15, pop pr). */", /* FIXME */
+ "do {",
+ " MA (1);",
+ " if (n == 15)",
+ " PR = RLAT (R[15]);",
+ " else",
+ " R[n] = RLAT (R[15]);",
+ " R[15] += 4;",
+ "} while (n++ < 15);",
+ },
+ { "", "", "nott", "0000000001101000",
+ "SET_SR_T (T == 0);",
+ },
{ "", "", "bt.s <bdisp8>", "10001101i8p1....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"if (T) {",
- " nia = PC + 4 + (SEXT (i) * 2);",
+ " SET_NIP (PC + 4 + (SEXT (i) * 2));",
" cycles += 2;",
" Delay_Slot (PC + 2);",
"}",
"SET_SR_T (0);",
},
+ /* sh4a */
+ { "", "", "clrdmxy", "0000000010001000",
+ "saved_state.asregs.cregs.named.sr &= ~(SR_MASK_DMX | SR_MASK_DMY);"
+ },
+
{ "", "0", "cmp/eq #<imm>,R0", "10001000i8*1....",
"SET_SR_T (R0 == SEXT (i));",
},
"SET_SR_T (0);",
},
- { "", "", "div1 <REG_M>,<REG_N>", "0011nnnnmmmm0100",
- "div1 (R, m, n/*, T*/);",
+ { "n", "nm", "div1 <REG_M>,<REG_N>", "0011nnnnmmmm0100",
+ "div1 (&R0, m, n/*, T*/);",
},
{ "", "nm", "dmuls.l <REG_M>,<REG_N>", "0011nnnnmmmm1101",
"R[n] = (R[m] & 0xffff);",
},
- /* sh3e */
+ /* sh2e */
{ "", "", "fabs <FREG_N>", "1111nnnn01011101",
"FP_UNARY (n, fabs);",
- "/* FIXME: FR(n) &= 0x7fffffff; */",
+ "/* FIXME: FR (n) &= 0x7fffffff; */",
},
- /* sh3e */
+ /* sh2e */
{ "", "", "fadd <FREG_M>,<FREG_N>", "1111nnnnmmmm0000",
"FP_OP (n, +, m);",
},
- /* sh3e */
+ /* sh2e */
{ "", "", "fcmp/eq <FREG_M>,<FREG_N>", "1111nnnnmmmm0100",
"FP_CMP (n, ==, m);",
},
- /* sh3e */
+ /* sh2e */
{ "", "", "fcmp/gt <FREG_M>,<FREG_N>", "1111nnnnmmmm0101",
"FP_CMP (n, >, m);",
},
- /* start-sanitize-sh4 */
+ /* sh4 */
{ "", "", "fcnvds <DR_N>,FPUL", "1111nnnn10111101",
"if (! FPSCR_PR || n & 1)",
- " saved_state.asregs.exception = SIGILL;",
+ " RAISE_EXCEPTION (SIGILL);",
"else",
"{",
- " char buf[4];",
- " *(float *)buf = DR(n);",
- " FPUL = *(int *)buf;",
+ " union",
+ " {",
+ " int i;",
+ " float f;",
+ " } u;",
+ " u.f = DR (n);",
+ " FPUL = u.i;",
"}",
},
- /* end-sanitize-sh4 */
- /* start-sanitize-sh4 */
+ /* sh4 */
{ "", "", "fcnvsd FPUL,<DR_N>", "1111nnnn10101101",
"if (! FPSCR_PR || n & 1)",
- " saved_state.asregs.exception = SIGILL;",
+ " RAISE_EXCEPTION (SIGILL);",
"else",
"{",
- " char buf[4];",
- " *(int *)buf = FPUL;",
- " SET_DR(n, *(float *)buf);",
+ " union",
+ " {",
+ " int i;",
+ " float f;",
+ " } u;",
+ " u.i = FPUL;",
+ " SET_DR (n, u.f);",
"}",
},
- /* end-sanitize-sh4 */
- /* sh3e */
+ /* sh2e */
{ "", "", "fdiv <FREG_M>,<FREG_N>", "1111nnnnmmmm0011",
"FP_OP (n, /, m);",
- "/* FIXME: check for DP and (n & 1) == 0? */",
+ "/* FIXME: check for DP and (n & 1) == 0? */",
},
- /* start-sanitize-sh4 */
- { "", "", "fipr <FV_M>,<FV_N>", "1111nnmm11101101",
- "/* FIXME: not implemented */",
- "saved_state.asregs.exception = SIGILL;",
- "/* FIXME: check for DP and (n & 1) == 0? */",
+ /* sh4 */
+ { "", "", "fipr <FV_M>,<FV_N>", "1111vvVV11101101",
+ "if (FPSCR_PR)",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else",
+ "{",
+ " double fsum = 0;",
+ " if (saved_state.asregs.bfd_mach == bfd_mach_sh2a)",
+ " RAISE_EXCEPTION (SIGILL);",
+ " /* FIXME: check for nans and infinities. */",
+ " fsum += FR (v1+0) * FR (v2+0);",
+ " fsum += FR (v1+1) * FR (v2+1);",
+ " fsum += FR (v1+2) * FR (v2+2);",
+ " fsum += FR (v1+3) * FR (v2+3);",
+ " SET_FR (v1+3, fsum);",
+ "}",
},
- /* end-sanitize-sh4 */
- /* sh3e */
+ /* sh2e */
{ "", "", "fldi0 <FREG_N>", "1111nnnn10001101",
- "SET_FR (n, (float)0.0);",
- "/* FIXME: check for DP and (n & 1) == 0? */",
+ "SET_FR (n, (float) 0.0);",
+ "/* FIXME: check for DP and (n & 1) == 0? */",
},
- /* sh3e */
+ /* sh2e */
{ "", "", "fldi1 <FREG_N>", "1111nnnn10011101",
- "SET_FR (n, (float)1.0);",
- "/* FIXME: check for DP and (n & 1) == 0? */",
+ "SET_FR (n, (float) 1.0);",
+ "/* FIXME: check for DP and (n & 1) == 0? */",
},
- /* sh3e */
+ /* sh2e */
{ "", "", "flds <FREG_N>,FPUL", "1111nnnn00011101",
- "char buf[4];",
- "*(float *)buf = FR(n);",
- "FPUL = *(int *)buf;",
+ " union",
+ " {",
+ " int i;",
+ " float f;",
+ " } u;",
+ " u.f = FR (n);",
+ " FPUL = u.i;",
},
- /* sh3e */
+ /* sh2e */
{ "", "", "float FPUL,<FREG_N>", "1111nnnn00101101",
- /* start-sanitize-sh4 */
+ /* sh4 */
"if (FPSCR_PR)",
- " SET_DR (n, (double)FPUL);",
+ " SET_DR (n, (double) FPUL);",
"else",
- /* end-sanitize-sh4 */
"{",
- " SET_FR (n, (float)FPUL);",
+ " SET_FR (n, (float) FPUL);",
"}",
},
- /* sh3e */
+ /* sh2e */
{ "", "", "fmac <FREG_0>,<FREG_M>,<FREG_N>", "1111nnnnmmmm1110",
- "SET_FR (n, FR(m) * FR(0) + FR(n));",
+ "SET_FR (n, FR (m) * FR (0) + FR (n));",
"/* FIXME: check for DP and (n & 1) == 0? */",
},
- /* sh3e */
+ /* sh2e */
{ "", "", "fmov <FREG_M>,<FREG_N>", "1111nnnnmmmm1100",
- /* start-sanitize-sh4 */
+ /* sh4 */
"if (FPSCR_SZ) {",
" int ni = XD_TO_XF (n);",
" int mi = XD_TO_XF (m);",
" SET_XF (ni + 1, XF (mi + 1));",
"}",
"else",
- /* end-sanitize-sh4 */
"{",
" SET_FR (n, FR (m));",
"}",
},
- /* sh3e */
- { "", "", "fmov.s <FREG_M>,@<REG_N>", "1111nnnnmmmm1010",
- /* start-sanitize-sh4 */
+ /* sh2e */
+ { "", "n", "fmov.s <FREG_M>,@<REG_N>", "1111nnnnmmmm1010",
+ /* sh4 */
"if (FPSCR_SZ) {",
" MA (2);",
" WDAT (R[n], m);",
"}",
"else",
- /* end-sanitize-sh4 */
"{",
" MA (1);",
- " WLAT (R[n], FI(m));",
+ " WLAT (R[n], FI (m));",
"}",
},
- /* sh3e */
- { "", "", "fmov.s @<REG_M>,<FREG_N>", "1111nnnnmmmm1000",
- /* start-sanitize-sh4 */
+ /* sh2e */
+ { "", "m", "fmov.s @<REG_M>,<FREG_N>", "1111nnnnmmmm1000",
+ /* sh4 */
"if (FPSCR_SZ) {",
" MA (2);",
" RDAT (R[m], n);",
"}",
"else",
- /* end-sanitize-sh4 */
"{",
" MA (1);",
- " SET_FI(n, RLAT(R[m]));",
+ " SET_FI (n, RLAT (R[m]));",
"}",
},
- /* sh3e */
- { "", "", "fmov.s @<REG_M>+,<FREG_N>", "1111nnnnmmmm1001",
- /* start-sanitize-sh4 */
+ /* sh2a */
+ { "", "n", "fmov.s @(disp12,<REG_N>), <FREG_M>", "0011nnnnmmmm0001",
+ "/* and fmov.s <FREG_N>, @(disp12,<FREG_M>)",
+ " and mov.bwl <REG_N>, @(disp12,<REG_M>)",
+ " and mov.bwl @(disp12,<REG_N>),<REG_M>",
+ " and movu.bw @(disp12,<REG_N>),<REG_M>. */",
+ "int word2 = RIAT (nip);",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "SET_NIP (nip + 2); /* Consume 2 more bytes. */",
+ "MA (1);",
+ "do_long_move_insn (word2 & 0xf000, word2 & 0x0fff, m, n, &thislock);",
+ },
+ /* sh2e */
+ { "m", "m", "fmov.s @<REG_M>+,<FREG_N>", "1111nnnnmmmm1001",
+ /* sh4 */
"if (FPSCR_SZ) {",
" MA (2);",
" RDAT (R[m], n);",
" R[m] += 8;",
"}",
"else",
- /* end-sanitize-sh4 */
"{",
" MA (1);",
" SET_FI (n, RLAT (R[m]));",
" R[m] += 4;",
"}",
},
- /* sh3e */
- { "", "", "fmov.s <FREG_M>,@-<REG_N>", "1111nnnnmmmm1011",
- /* start-sanitize-sh4 */
+ /* sh2e */
+ { "n", "n", "fmov.s <FREG_M>,@-<REG_N>", "1111nnnnmmmm1011",
+ /* sh4 */
"if (FPSCR_SZ) {",
" MA (2);",
" R[n] -= 8;",
" WDAT (R[n], m);",
"}",
"else",
- /* end-sanitize-sh4 */
"{",
" MA (1);",
" R[n] -= 4;",
- " WLAT (R[n], FI(m));",
+ " WLAT (R[n], FI (m));",
"}",
},
- /* sh3e */
- { "", "", "fmov.s @(R0,<REG_M>),<FREG_N>", "1111nnnnmmmm0110",
- /* start-sanitize-sh4 */
+ /* sh2e */
+ { "", "0m", "fmov.s @(R0,<REG_M>),<FREG_N>", "1111nnnnmmmm0110",
+ /* sh4 */
"if (FPSCR_SZ) {",
" MA (2);",
" RDAT (R[0]+R[m], n);",
"}",
"else",
- /* end-sanitize-sh4 */
"{",
" MA (1);",
- " SET_FI(n, RLAT(R[0] + R[m]));",
+ " SET_FI (n, RLAT (R[0] + R[m]));",
"}",
},
- /* sh3e */
- { "", "", "fmov.s <FREG_M>,@(R0,<REG_N>)", "1111nnnnmmmm0111",
- /* start-sanitize-sh4 */
+ /* sh2e */
+ { "", "0n", "fmov.s <FREG_M>,@(R0,<REG_N>)", "1111nnnnmmmm0111",
+ /* sh4 */
"if (FPSCR_SZ) {",
" MA (2);",
" WDAT (R[0]+R[n], m);",
"}",
"else",
- /* end-sanitize-sh4 */
"{",
" MA (1);",
- " WLAT((R[0]+R[n]), FI(m));",
+ " WLAT ((R[0]+R[n]), FI (m));",
"}",
},
- /* start-sanitize-sh4 */
- /* See fmov instructions above for move to/from extended fp
- registers */
- /* end-sanitize-sh4 */
+ /* sh4:
+ See fmov instructions above for move to/from extended fp registers. */
- /* sh3e */
+ /* sh2e */
{ "", "", "fmul <FREG_M>,<FREG_N>", "1111nnnnmmmm0010",
- "FP_OP(n, *, m);",
+ "FP_OP (n, *, m);",
},
- /* sh3e */
+ /* sh2e */
{ "", "", "fneg <FREG_N>", "1111nnnn01001101",
- "FP_UNARY(n, -);",
+ "FP_UNARY (n, -);",
+ },
+
+ /* sh4a */
+ { "", "", "fpchg", "1111011111111101",
+ "SET_FPSCR (GET_FPSCR () ^ FPSCR_MASK_PR);",
},
- /* start-sanitize-sh4 */
+ /* sh4 */
{ "", "", "frchg", "1111101111111101",
- "SET_FPSCR (GET_FPSCR() ^ FPSCR_MASK_FR);",
+ "if (FPSCR_PR)",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else if (saved_state.asregs.bfd_mach == bfd_mach_sh2a)",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else",
+ " SET_FPSCR (GET_FPSCR () ^ FPSCR_MASK_FR);",
+ },
+
+ /* sh4 */
+ { "", "", "fsca", "1111eeee11111101",
+ "if (FPSCR_PR)",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else if (saved_state.asregs.bfd_mach == bfd_mach_sh2a)",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else",
+ " {",
+ " SET_FR (n, fsca_s (FPUL, &sin));",
+ " SET_FR (n+1, fsca_s (FPUL, &cos));",
+ " }",
},
- /* end-sanitize-sh4 */
- /* start-sanitize-sh4 */
+ /* sh4 */
{ "", "", "fschg", "1111001111111101",
- "SET_FPSCR (GET_FPSCR() ^ FPSCR_MASK_SZ);",
+ "SET_FPSCR (GET_FPSCR () ^ FPSCR_MASK_SZ);",
},
- /* end-sanitize-sh4 */
/* sh3e */
{ "", "", "fsqrt <FREG_N>", "1111nnnn01101101",
- "FP_UNARY(n, sqrt);",
+ "FP_UNARY (n, sqrt);",
},
- /* sh3e */
+ /* sh4 */
+ { "", "", "fsrra <FREG_N>", "1111nnnn01111101",
+ "if (FPSCR_PR)",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else if (saved_state.asregs.bfd_mach == bfd_mach_sh2a)",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else",
+ " SET_FR (n, fsrra_s (FR (n)));",
+ },
+
+ /* sh2e */
{ "", "", "fsub <FREG_M>,<FREG_N>", "1111nnnnmmmm0001",
- "FP_OP(n, -, m);",
+ "FP_OP (n, -, m);",
},
- /* sh3e */
+ /* sh2e */
{ "", "", "ftrc <FREG_N>, FPUL", "1111nnnn00111101",
- /* start-sanitize-sh4 */
+ /* sh4 */
"if (FPSCR_PR) {",
- " if (DR(n) != DR(n)) /* NaN */",
+ " if (DR (n) != DR (n)) /* NaN */",
" FPUL = 0x80000000;",
" else",
- " FPUL = (int)DR(n);",
+ " FPUL = (int) DR (n);",
"}",
"else",
- /* end-sanitize-sh4 */
- "if (FR(n) != FR(n)) /* NaN */",
+ "if (FR (n) != FR (n)) /* NaN */",
" FPUL = 0x80000000;",
"else",
- " FPUL = (int)FR(n);",
+ " FPUL = (int) FR (n);",
},
- /* start-sanitize-sh4 */
-#if 0
- /* ftst/nan would appear to have been dropped */
- /* end-sanitize-sh4 */
- /* sh3e */
- { "", "", "ftst/nan <FREG_N>", "1111nnnn01111101",
- "SET_SR_T (isnan (FR(n)));",
+ /* sh4 */
+ { "", "", "ftrv <FV_N>", "1111vv0111111101",
+ "if (FPSCR_PR)",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else",
+ "{",
+ " if (saved_state.asregs.bfd_mach == bfd_mach_sh2a)",
+ " RAISE_EXCEPTION (SIGILL);",
+ " /* FIXME not implemented. */",
+ " printf (\"ftrv xmtrx, FV%d\\n\", v1);",
+ "}",
},
- /* start-sanitize-sh4 */
-#endif
- /* end-sanitize-sh4 */
- /* sh3e */
+ /* sh2e */
{ "", "", "fsts FPUL,<FREG_N>", "1111nnnn00001101",
- "char buf[4];",
- "*(int *)buf = FPUL;",
- "SET_FR (n, *(float *)buf);",
+ " union",
+ " {",
+ " int i;",
+ " float f;",
+ " } u;",
+ " u.i = FPUL;",
+ " SET_FR (n, u.f);",
},
{ "", "n", "jmp @<REG_N>", "0100nnnn00101011",
- "nia = R[n];",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "SET_NIP (PT2H (R[n]));",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
{ "", "n", "jsr @<REG_N>", "0100nnnn00001011",
- "PR = PC + 4;",
- "nia = R[n];",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "PR = PH2T (PC + 4);",
"if (~doprofile)",
- " gotcall (PR, nia);",
+ " gotcall (PR, R[n]);",
+ "SET_NIP (PT2H (R[n]));",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
+ { "", "n", "jsr/n @<REG_N>", "0100nnnn01001011",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "PR = PH2T (PC + 2);",
+ "if (~doprofile)",
+ " gotcall (PR, R[n]);",
+ "SET_NIP (PT2H (R[n]));",
+ },
+ { "", "", "jsr/n @@(<disp>,TBR)", "10000011i8p4....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "PR = PH2T (PC + 2);",
+ "if (~doprofile)",
+ " gotcall (PR, i + TBR);",
+ "SET_NIP (PT2H (i + TBR));",
+ },
- { "", "n", "ldc <REG_N>,GBR", "0100nnnn00011110",
- "GBR = R[n];",
+ { "", "n", "ldc <REG_N>,<CREG_M>", "0100nnnnmmmm1110",
+ "CREG (m) = R[n];",
"/* FIXME: user mode */",
},
{ "", "n", "ldc <REG_N>,SR", "0100nnnn00001110",
"SET_SR (R[n]);",
"/* FIXME: user mode */",
},
- { "", "n", "ldc <REG_N>,VBR", "0100nnnn00101110",
- "VBR = R[n];",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,SSR", "0100nnnn00111110",
- "SSR = R[n];",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,SPC", "0100nnnn01001110",
- "SPC = R[n];",
- "/* FIXME: user mode */",
+ { "", "n", "ldc <REG_N>,MOD", "0100nnnn01011110",
+ "SET_MOD (R[n]);",
},
- /* start-sanitize-sh4 */
-#if 0
{ "", "n", "ldc <REG_N>,DBR", "0100nnnn11111010",
- "DBR = R[n];",
- "/* FIXME: user mode */",
- },
-#endif
- /* end-sanitize-sh4 */
- { "", "n", "ldc <REG_N>,R0_BANK", "0100nnnn10001110",
- "SET_Rn_BANK (0, R[n]);",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,R1_BANK", "0100nnnn10011110",
- "SET_Rn_BANK (1, R[n]);",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,R2_BANK", "0100nnnn10101110",
- "SET_Rn_BANK (2, R[n]);",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,R3_BANK", "0100nnnn10111110",
- "SET_Rn_BANK (3, R[n]);",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,R4_BANK", "0100nnnn11001110",
- "SET_Rn_BANK (4, R[n]);",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,R5_BANK", "0100nnnn11011110",
- "SET_Rn_BANK (5, R[n]);",
- "/* FIXME: user mode */",
+ "if (SR_MD)",
+ " DBR = R[n]; /* priv mode */",
+ "else",
+ " RAISE_EXCEPTION (SIGILL); /* user mode */",
},
- { "", "n", "ldc <REG_N>,R6_BANK", "0100nnnn11101110",
- "SET_Rn_BANK (6, R[n]);",
- "/* FIXME: user mode */",
+ { "", "n", "ldc <REG_N>,SGR", "0100nnnn00111010",
+ "if (SR_MD)",
+ " SGR = R[n]; /* priv mode */",
+ "else",
+ " RAISE_EXCEPTION (SIGILL); /* user mode */",
},
- { "", "n", "ldc <REG_N>,R7_BANK", "0100nnnn11111110",
- "SET_Rn_BANK (7, R[n]);",
- "/* FIXME: user mode */",
+ { "", "n", "ldc <REG_N>,TBR", "0100nnnn01001010",
+ "if (SR_MD)", /* FIXME? */
+ " TBR = R[n]; /* priv mode */",
+ "else",
+ " RAISE_EXCEPTION (SIGILL); /* user mode */",
},
- { "", "n", "ldc.l @<REG_N>+,GBR", "0100nnnn00010111",
+ { "n", "n", "ldc.l @<REG_N>+,<CREG_M>", "0100nnnnmmmm0111",
"MA (1);",
- "GBR = RLAT (R[n]);",
+ "CREG (m) = RLAT (R[n]);",
"R[n] += 4;",
"/* FIXME: user mode */",
},
- { "", "n", "ldc.l @<REG_N>+,SR", "0100nnnn00000111",
+ { "n", "n", "ldc.l @<REG_N>+,SR", "0100nnnn00000111",
"MA (1);",
"SET_SR (RLAT (R[n]));",
"R[n] += 4;",
"/* FIXME: user mode */",
},
- { "", "n", "ldc.l @<REG_N>+,VBR", "0100nnnn00100111",
- "MA (1);",
- "VBR = RLAT (R[n]);",
- "R[n] += 4;",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc.l @<REG_N>+,SSR", "0100nnnn00110111",
- "MA (1);",
- "SSR = RLAT (R[n]);",
- "R[n] += 4;",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc.l @<REG_N>+,SPC", "0100nnnn01000111",
- "MA (1);",
- "SPC = RLAT (R[n]);",
- "R[n] += 4;",
- "/* FIXME: user mode */",
- },
- /* start-sanitize-sh4 */
-#if 0
- { "", "n", "ldc.l @<REG_N>+,DBR", "0100nnnn11110110",
- "MA (1);",
- "DBR = RLAT (R[n]);",
- "R[n] += 4;",
- "/* FIXME: user mode */",
- },
-#endif
- /* end-sanitize-sh4 */
- { "", "n", "ldc.l @<REG_N>+,R0_BANK", "0100nnnn10000111",
- "MA (1);",
- "SET_Rn_BANK (0, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc.l @<REG_N>+,R1_BANK", "0100nnnn10010111",
+ { "n", "n", "ldc.l @<REG_N>+,MOD", "0100nnnn01010111",
"MA (1);",
- "SET_Rn_BANK (1, RLAT (R[n]));",
+ "SET_MOD (RLAT (R[n]));",
"R[n] += 4;",
- "/* FIXME: user mode */",
},
- { "", "n", "ldc.l @<REG_N>+,R2_BANK", "0100nnnn10100111",
- "MA (1);",
- "SET_Rn_BANK (2, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
+ { "n", "n", "ldc.l @<REG_N>+,DBR", "0100nnnn11110110",
+ "if (SR_MD)",
+ "{ /* priv mode */",
+ " MA (1);",
+ " DBR = RLAT (R[n]);",
+ " R[n] += 4;",
+ "}",
+ "else",
+ " RAISE_EXCEPTION (SIGILL); /* user mode */",
},
- { "", "n", "ldc.l @<REG_N>+,R3_BANK", "0100nnnn10110111",
- "MA (1);",
- "SET_Rn_BANK (3, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
+ { "n", "n", "ldc.l @<REG_N>+,SGR", "0100nnnn00110110",
+ "if (SR_MD)",
+ "{ /* priv mode */",
+ " MA (1);",
+ " SGR = RLAT (R[n]);",
+ " R[n] += 4;",
+ "}",
+ "else",
+ " RAISE_EXCEPTION (SIGILL); /* user mode */",
},
- { "", "n", "ldc.l @<REG_N>+,R4_BANK", "0100nnnn11000111",
- "MA (1);",
- "SET_Rn_BANK (4, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
+
+ /* sh-dsp */
+ { "", "", "ldre @(<disp>,PC)", "10001110i8p1....",
+ "RE = SEXT (i) * 2 + 4 + PH2T (PC);",
},
- { "", "n", "ldc.l @<REG_N>+,R5_BANK", "0100nnnn11010111",
- "MA (1);",
- "SET_Rn_BANK (5, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
+ { "", "", "ldrs @(<disp>,PC)", "10001100i8p1....",
+ "RS = SEXT (i) * 2 + 4 + PH2T (PC);",
},
- { "", "n", "ldc.l @<REG_N>+,R6_BANK", "0100nnnn11100111",
- "MA (1);",
- "SET_Rn_BANK (6, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
+
+ /* sh4a */
+ { "", "n", "ldrc <REG_N>", "0100nnnn00110100",
+ "SET_RC (R[n]);",
+ "loop = get_loop_bounds_ext (RS, RE, memory, mem_end, maskw, endianw);",
+ "CHECK_INSN_PTR (insn_ptr);",
+ "RE |= 1;",
},
- { "", "n", "ldc.l @<REG_N>+,R7_BANK", "0100nnnn11110111",
- "MA (1);",
- "SET_Rn_BANK (7, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
+ { "", "", "ldrc #<imm>", "10001010i8*1....",
+ "SET_RC (i);",
+ "loop = get_loop_bounds_ext (RS, RE, memory, mem_end, maskw, endianw);",
+ "CHECK_INSN_PTR (insn_ptr);",
+ "RE |= 1;",
},
- /* sh3e */
- { "", "", "lds <REG_N>,FPUL", "0100nnnn01011010",
- "FPUL = R[n];",
+ { "", "n", "lds <REG_N>,<SREG_M>", "0100nnnnssss1010",
+ "SREG (m) = R[n];",
},
- /* sh3e */
- { "", "", "lds.l @<REG_N>+,FPUL", "0100nnnn01010110",
+ { "n", "n", "lds.l @<REG_N>+,<SREG_M>", "0100nnnnssss0110",
"MA (1);",
- "FPUL = RLAT(R[n]);",
+ "SREG (m) = RLAT (R[n]);",
"R[n] += 4;",
},
- /* sh3e */
- { "", "", "lds <REG_N>,FPSCR", "0100nnnn01101010",
- "SET_FPSCR(R[n]);",
+ /* sh2e / sh-dsp (lds <REG_N>,DSR) */
+ { "", "n", "lds <REG_N>,FPSCR", "0100nnnn01101010",
+ "SET_FPSCR (R[n]);",
},
- /* sh3e */
- { "", "", "lds.l @<REG_N>+,FPSCR", "0100nnnn01100110",
+ /* sh2e / sh-dsp (lds.l @<REG_N>+,DSR) */
+ { "n", "n", "lds.l @<REG_N>+,FPSCR", "0100nnnn01100110",
"MA (1);",
- "SET_FPSCR (RLAT(R[n]));",
+ "SET_FPSCR (RLAT (R[n]));",
"R[n] += 4;",
},
- { "", "n", "lds <REG_N>,MACH", "0100nnnn00001010",
- "MACH = R[n];",
- },
- { "", "n", "lds <REG_N>,MACL", "0100nnnn00011010",
- "MACL= R[n];",
- },
- { "", "n", "lds <REG_N>,PR", "0100nnnn00101010",
- "PR = R[n];",
- },
- { "", "n", "lds.l @<REG_N>+,MACH", "0100nnnn00000110",
- "MA (1);",
- "MACH = SEXT(RLAT(R[n]));",
- "R[n]+=4;",
- },
- { "", "n", "lds.l @<REG_N>+,MACL", "0100nnnn00010110",
- "MA (1);",
- "MACL = RLAT(R[n]);",
- "R[n]+=4;",
- },
- { "", "n", "lds.l @<REG_N>+,PR", "0100nnnn00100110",
- "MA (1);",
- "PR = RLAT(R[n]);",
- "R[n]+=4;;",
- },
-
{ "", "", "ldtlb", "0000000000111000",
- "/* FIXME: XXX*/ abort();",
+ "/* We don't implement cache or tlb, so this is a noop. */",
},
- { "", "nm", "mac.l @<REG_M>+,@<REG_N>+", "0000nnnnmmmm1111",
- "trap (255,R0,memory,maskl,maskw,little_endian);",
- "/* FIXME: mac.l support */",
+ { "nm", "nm", "mac.l @<REG_M>+,@<REG_N>+", "0000nnnnmmmm1111",
+ "macl (&R0, memory, n, m);",
},
- { "", "nm", "mac.w @<REG_M>+,@<REG_N>+", "0100nnnnmmmm1111",
- "macw(R0,memory,n,m);",
+ { "nm", "nm", "mac.w @<REG_M>+,@<REG_N>+", "0100nnnnmmmm1111",
+ "macw (&R0, memory, n, m, endianw);",
},
{ "n", "", "mov #<imm>,<REG_N>", "1110nnnni8*1....",
- "R[n] = SEXT(i);",
+ "R[n] = SEXT (i);",
+ },
+ { "n", "", "movi20 #<imm20>,<REG_N>", "0000nnnni8*10000",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "R[n] = ((i << 24) >> 12) | RIAT (nip);",
+ "SET_NIP (nip + 2); /* Consume 2 more bytes. */",
+ },
+ { "n", "", "movi20s #<imm20>,<REG_N>", "0000nnnni8*10001",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "R[n] = ((((i & 0xf0) << 24) >> 12) | RIAT (nip)) << 8;",
+ "SET_NIP (nip + 2); /* Consume 2 more bytes. */",
},
{ "n", "m", "mov <REG_M>,<REG_N>", "0110nnnnmmmm0011",
"R[n] = R[m];",
"R[n] = RSBAT (R0 + R[m]);",
"L (n);",
},
- { "n", "m", "mov.b @<REG_M>+,<REG_N>", "0110nnnnmmmm0100",
+ { "nm", "m", "mov.b @<REG_M>+,<REG_N>", "0110nnnnmmmm0100",
"MA (1);",
"R[n] = RSBAT (R[m]);",
"R[m] += 1;",
"L (n);",
},
+ { "0n", "n", "mov.b @-<REG_N>,R0", "0100nnnn11001011",
+ "MA (1);",
+ "R[n] -= 1;",
+ "R0 = RSBAT (R[n]);",
+ "L (0);",
+ },
{ "", "mn", "mov.b <REG_M>,@<REG_N>", "0010nnnnmmmm0000",
"MA (1);",
"WBAT (R[n], R[m]);",
"MA (1);",
"WBAT (R[n] + R0, R[m]);",
},
- { "", "nm", "mov.b <REG_M>,@-<REG_N>", "0010nnnnmmmm0100",
+ { "n", "nm", "mov.b <REG_M>,@-<REG_N>", "0010nnnnmmmm0100",
+ /* Allow for the case where m == n. */
+ "int t = R[m];",
"MA (1);",
"R[n] -= 1;",
- "WBAT (R[n], R[m]);",
+ "WBAT (R[n], t);",
+ },
+ { "n", "n0", "mov.b R0,@<REG_N>+", "0100nnnn10001011",
+ "MA (1);",
+ "WBAT (R[n], R0);",
+ "R[n] += 1;",
},
{ "n", "m", "mov.b @<REG_M>,<REG_N>", "0110nnnnmmmm0000",
"MA (1);",
"L (0);",
},
{ "n", "", "mov.l @(<disp>,PC),<REG_N>", "1101nnnni8p4....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"MA (1);",
- "R[n] = RLAT((PC & ~3) + 4 + i);",
+ "R[n] = RLAT ((PH2T (PC) & ~3) + 4 + i);",
"L (n);",
},
{ "n", "m", "mov.l @(<disp>,<REG_M>),<REG_N>", "0101nnnnmmmmi4*4",
"R[m] += 4;",
"L (n);",
},
+ { "0n", "n", "mov.l @-<REG_N>,R0", "0100nnnn11101011",
+ "MA (1);",
+ "R[n] -= 4;",
+ "R0 = RLAT (R[n]);",
+ "L (0);",
+ },
{ "n", "m", "mov.l @<REG_M>,<REG_N>", "0110nnnnmmmm0010",
"MA (1);",
"R[n] = RLAT (R[m]);",
"MA (1);",
"WLAT (R0 + R[n], R[m]);",
},
- { "", "nm", "mov.l <REG_M>,@-<REG_N>", "0010nnnnmmmm0110",
+ { "n", "nm", "mov.l <REG_M>,@-<REG_N>", "0010nnnnmmmm0110",
+ /* Allow for the case where m == n. */
+ "int t = R[m];",
"MA (1) ;",
"R[n] -= 4;",
- "WLAT (R[n], R[m]);",
+ "WLAT (R[n], t);",
+ },
+ { "n", "n0", "mov.l R0,@<REG_N>+", "0100nnnn10101011",
+ "MA (1) ;",
+ "WLAT (R[n], R0);",
+ "R[n] += 4;",
},
{ "", "nm", "mov.l <REG_M>,@<REG_N>", "0010nnnnmmmm0010",
"MA (1);",
},
{ "0", "", "mov.w @(<disp>,GBR),R0", "11000101i8*2....",
- "MA (1)",
- ";R0 = RSWAT (i + GBR);",
+ "MA (1);",
+ "R0 = RSWAT (i + GBR);",
"L (0);",
},
{ "n", "", "mov.w @(<disp>,PC),<REG_N>", "1001nnnni8p2....",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"MA (1);",
- "R[n] = RSWAT (PC + 4 + i);",
+ "R[n] = RSWAT (PH2T (PC + 4 + i));",
"L (n);",
},
{ "0", "m", "mov.w @(<disp>,<REG_M>),R0", "10000101mmmmi4*2",
"R[m] += 2;",
"L (n);",
},
+ { "0n", "n", "mov.w @-<REG_N>,R0", "0100nnnn11011011",
+ "MA (1);",
+ "R[n] -= 2;",
+ "R0 = RSWAT (R[n]);",
+ "L (0);",
+ },
{ "n", "m", "mov.w @<REG_M>,<REG_N>", "0110nnnnmmmm0001",
"MA (1);",
"R[n] = RSWAT (R[m]);",
"WWAT (R0 + R[n], R[m]);",
},
{ "n", "mn", "mov.w <REG_M>,@-<REG_N>", "0010nnnnmmmm0101",
+ /* Allow for the case where m == n. */
+ "int t = R[m];",
"MA (1);",
"R[n] -= 2;",
- "WWAT (R[n], R[m]);",
+ "WWAT (R[n], t);",
+ },
+ { "n", "0n", "mov.w R0,@<REG_N>+", "0100nnnn10011011",
+ "MA (1);",
+ "WWAT (R[n], R0);",
+ "R[n] += 2;",
},
{ "", "nm", "mov.w <REG_M>,@<REG_N>", "0010nnnnmmmm0001",
"MA (1);",
},
{ "0", "", "mova @(<disp>,PC),R0", "11000111i8p4....",
- "R0 = ((i + 4 + PC) & ~0x3);",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "R0 = ((i + 4 + PH2T (PC)) & ~0x3);",
+ },
+
+ { "", "n0", "movca.l R0, @<REG_N>", "0000nnnn11000011",
+ "/* We don't simulate cache, so this insn is identical to mov. */",
+ "MA (1);",
+ "WLAT (R[n], R[0]);",
},
- /* start-sanitize-sh4 */
- { "0", "", "movca.l @R0, <REG_N>", "0000nnnn11000011",
- "/* FIXME: Not implemented */",
- "saved_state.asregs.exception = SIGILL;",
+ { "", "n0", "movco.l R0, @<REG_N>", "0000nnnn01110011",
+ "/* LDST -> T */",
+ "SET_SR_T (LDST);",
+ "/* if (T) R0 -> (Rn) */",
+ "if (T)",
+ " WLAT (R[n], R[0]);",
+ "/* 0 -> LDST */",
+ "SET_LDST (0);",
+ },
+
+ { "0", "n", "movli.l @<REG_N>, R0", "0000nnnn01100011",
+ "/* 1 -> LDST */",
+ "SET_LDST (1);",
+ "/* (Rn) -> R0 */",
+ "R[0] = RLAT (R[n]);",
+ "/* if (interrupt/exception) 0 -> LDST */",
+ "/* (we don't simulate asynchronous interrupts/exceptions) */",
},
- /* end-sanitize-sh4 */
{ "n", "", "movt <REG_N>", "0000nnnn00101001",
"R[n] = T;",
},
-
+ { "", "", "movrt <REG_N>", "0000nnnn00111001",
+ "R[n] = (T == 0);",
+ },
+ { "0", "n", "movua.l @<REG_N>,R0", "0100nnnn10101001",
+ "int regn = R[n];",
+ "int e = target_little_endian ? 3 : 0;",
+ "MA (1);",
+ "R[0] = (RBAT (regn + (0^e)) << 24) + (RBAT (regn + (1^e)) << 16) + ",
+ " (RBAT (regn + (2^e)) << 8) + RBAT (regn + (3^e));",
+ "L (0);",
+ },
+ { "0n", "n", "movua.l @<REG_N>+,R0", "0100nnnn11101001",
+ "int regn = R[n];",
+ "int e = target_little_endian ? 3 : 0;",
+ "MA (1);",
+ "R[0] = (RBAT (regn + (0^e)) << 24) + (RBAT (regn + (1^e)) << 16) + ",
+ " (RBAT (regn + (2^e)) << 8) + RBAT (regn + (3^e));",
+ "R[n] += 4;",
+ "L (0);",
+ },
{ "", "mn", "mul.l <REG_M>,<REG_N>", "0000nnnnmmmm0111",
- "MACL = ((int)R[n]) * ((int)R[m]);",
+ "MACL = ((int) R[n]) * ((int) R[m]);",
},
-#if 0
+#if 0 /* FIXME: The above cast to int is not really portable.
+ It should be replaced by a SEXT32 macro. */
{ "", "nm", "mul.l <REG_M>,<REG_N>", "0000nnnnmmmm0111",
"MACL = R[n] * R[m];",
},
/* muls.w - see muls */
{ "", "mn", "muls <REG_M>,<REG_N>", "0010nnnnmmmm1111",
- "MACL = ((int)(short)R[n]) * ((int)(short)R[m]);",
+ "MACL = ((int) (short) R[n]) * ((int) (short) R[m]);",
},
/* mulu.w - see mulu */
{ "", "mn", "mulu <REG_M>,<REG_N>", "0010nnnnmmmm1110",
- "MACL = (((unsigned int)(unsigned short)R[n])",
- " * ((unsigned int)(unsigned short)R[m]));",
+ "MACL = (((unsigned int) (unsigned short) R[n])",
+ " * ((unsigned int) (unsigned short) R[m]));",
},
{ "n", "m", "neg <REG_M>,<REG_N>", "0110nnnnmmmm1011",
"R[n] = ~R[m];",
},
- /* start-sanitize-sh4 */
- { "0", "", "ocbi @<REG_N>", "0000nnnn10010011",
- "/* FIXME: Not implemented */",
- "saved_state.asregs.exception = SIGILL;",
+ /* sh4a */
+ { "", "n", "icbi @<REG_N>", "0000nnnn11100011",
+ "/* Except for the effect on the cache - which is not simulated -",
+ " this is like a nop. */",
+ },
+
+ { "", "n", "ocbi @<REG_N>", "0000nnnn10010011",
+ "RSBAT (R[n]); /* Take exceptions like byte load, otherwise noop. */",
+ "/* FIXME: Cache not implemented */",
},
- /* end-sanitize-sh4 */
- /* start-sanitize-sh4 */
- { "0", "", "ocbp @<REG_N>", "0000nnnn10100011",
- "/* FIXME: Not implemented */",
- "saved_state.asregs.exception = SIGILL;",
+ { "", "n", "ocbp @<REG_N>", "0000nnnn10100011",
+ "RSBAT (R[n]); /* Take exceptions like byte load, otherwise noop. */",
+ "/* FIXME: Cache not implemented */",
},
- /* end-sanitize-sh4 */
- /* start-sanitize-sh4 */
{ "", "n", "ocbwb @<REG_N>", "0000nnnn10110011",
- "RSBAT (R[n]); /* Take exceptions like byte load. */",
+ "RSBAT (R[n]); /* Take exceptions like byte load, otherwise noop. */",
"/* FIXME: Cache not implemented */",
},
- /* end-sanitize-sh4 */
{ "0", "", "or #<imm>,R0", "11001011i8*1....",
"R0 |= i;",
" this is like a nop. */",
},
+ /* sh4a */
+ { "", "n", "prefi @<REG_N>", "0000nnnn11010011",
+ "/* Except for the effect on the cache - which is not simulated -",
+ " this is like a nop. */",
+ },
+
+ /* sh4a */
+ { "", "", "synco", "0000000010101011",
+ "/* Except for the effect on the pipeline - which is not simulated -",
+ " this is like a nop. */",
+ },
+
{ "n", "n", "rotcl <REG_N>", "0100nnnn00100100",
"ult = R[n] < 0;",
"R[n] = (R[n] << 1) | T;",
#if 0
/* SH-[12] */
"int tmp = PC;",
- "nia = RLAT (R[15]) + 2;",
+ "SET_NIP (PT2H (RLAT (R[15]) + 2));",
"R[15] += 4;",
"SET_SR (RLAT (R[15]) & 0x3f3);",
"R[15] += 4;",
"Delay_Slot (PC + 2);",
#else
- "nia = SPC;",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
"SET_SR (SSR);",
+ "SET_NIP (PT2H (SPC));",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
#endif
},
{ "", "", "rts", "0000000000001011",
- "nia = PR;",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "SET_NIP (PT2H (PR));",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
-
- { "", "", "sets", "0000000001011000",
- "SET_SR_S (1);",
+ { "", "", "rts/n", "0000000001101011",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "SET_NIP (PT2H (PR));",
},
-
- { "", "", "sett", "0000000000011000",
- "SET_SR_T (1);",
+ { "0", "n", "rtv/n <REG_N>", "0000nnnn01111011",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "R0 = R[n];",
+ "L (0);",
+ "SET_NIP (PT2H (PR));",
},
- { "n", "mn", "shad <REG_M>,<REG_N>", "0100nnnnmmmm1100",
- "R[n] = (R[m] < 0) ? (R[n] >> ((-R[m])&0x1f)) : (R[n] << (R[m] & 0x1f));",
+ /* sh4a */
+ { "", "", "setdmx", "0000000010011000",
+ "saved_state.asregs.cregs.named.sr |= SR_MASK_DMX;"
+ "saved_state.asregs.cregs.named.sr &= ~SR_MASK_DMY;"
},
- { "n", "n", "shal <REG_N>", "0100nnnn00100000",
- "SET_SR_T (R[n] < 0);",
- "R[n] <<= 1;",
+ /* sh4a */
+ { "", "", "setdmy", "0000000011001000",
+ "saved_state.asregs.cregs.named.sr |= SR_MASK_DMY;"
+ "saved_state.asregs.cregs.named.sr &= ~SR_MASK_DMX;"
+ },
+
+ /* sh-dsp */
+ { "", "n", "setrc <REG_N>", "0100nnnn00010100",
+ "SET_RC (R[n]);",
+ },
+ { "", "", "setrc #<imm>", "10000010i8*1....",
+ /* It would be more realistic to let loop_start point to some static
+ memory that contains an illegal opcode and then give a bus error when
+ the loop is eventually encountered, but it seems not only simpler,
+ but also more debugging-friendly to just catch the failure here. */
+ "if (BUSERROR (RS | RE, maskw))",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else {",
+ " SET_RC (i);",
+ " loop = get_loop_bounds (RS, RE, memory, mem_end, maskw, endianw);",
+ " CHECK_INSN_PTR (insn_ptr);",
+ "}",
+ },
+
+ { "", "", "sets", "0000000001011000",
+ "SET_SR_S (1);",
+ },
+
+ { "", "", "sett", "0000000000011000",
+ "SET_SR_T (1);",
+ },
+
+ { "n", "mn", "shad <REG_M>,<REG_N>", "0100nnnnmmmm1100",
+ "R[n] = (R[m] < 0) ? (R[m]&0x1f ? R[n] >> ((-R[m])&0x1f) : R[n] >> 31) : (R[n] << (R[m] & 0x1f));",
+ },
+
+ { "n", "n", "shal <REG_N>", "0100nnnn00100000",
+ "SET_SR_T (R[n] < 0);",
+ "R[n] <<= 1;",
},
{ "n", "n", "shar <REG_N>", "0100nnnn00100001",
},
{ "n", "mn", "shld <REG_M>,<REG_N>", "0100nnnnmmmm1101",
- "R[n] = (R[m] < 0) ? (UR[n] >> ((-R[m])&0x1f)): (R[n] << (R[m] & 0x1f));",
+ "R[n] = (R[m] < 0) ? (R[m]&0x1f ? UR[n] >> ((-R[m])&0x1f) : 0): (R[n] << (R[m] & 0x1f));",
},
{ "n", "n", "shll <REG_N>", "0100nnnn00000000",
},
{ "", "", "sleep", "0000000000011011",
- "trap (0xc3, R0, memory, maskl, maskw, little_endian);",
- "nia = PC;",
+ "nip += trap (0xc3, &R0, PC, memory, maskl, maskw, endianw);",
},
- { "n", "", "stc GBR,<REG_N>", "0000nnnn00010010",
- "R[n] = GBR;",
- },
- { "n", "", "stc SR,<REG_N>", "0000nnnn00000010",
- "R[n] = GET_SR ();",
- },
- { "n", "", "stc VBR,<REG_N>", "0000nnnn00100010",
- "R[n] = VBR;",
- },
- { "n", "", "stc SSR,<REG_N>", "0000nnnn00110010",
- "R[n] = SSR;",
+ { "n", "", "stc <CREG_M>,<REG_N>", "0000nnnnmmmm0010",
+ "R[n] = CREG (m);",
},
- { "n", "", "stc SPC,<REG_N>", "0000nnnn01000010",
- "R[n] = SPC;",
- },
- /* start-sanitize-sh4 */
-#if 0
+
{ "n", "", "stc SGR,<REG_N>", "0000nnnn00111010",
- "R[n] = SGR;",
+ "if (SR_MD)",
+ " R[n] = SGR; /* priv mode */",
+ "else",
+ " RAISE_EXCEPTION (SIGILL); /* user mode */",
},
{ "n", "", "stc DBR,<REG_N>", "0000nnnn11111010",
- "R[n] = DBR;",
- },
-#endif
- /* end-sanitize-sh4 */
- { "n", "", "stc R0_BANK,<REG_N>", "0000nnnn10000010",
- "R[n] = Rn_BANK (0);",
- },
- { "n", "", "stc R1_BANK,<REG_N>", "0000nnnn10010010",
- "R[n] = Rn_BANK (1);",
- },
- { "n", "", "stc R2_BANK,<REG_N>", "0000nnnn10100010",
- "R[n] = Rn_BANK (2);",
- },
- { "n", "", "stc R3_BANK,<REG_N>", "0000nnnn10110010",
- "R[n] = Rn_BANK (3);",
- },
- { "n", "", "stc R4_BANK,<REG_N>", "0000nnnn11000010",
- "R[n] = Rn_BANK (4);",
- },
- { "n", "", "stc R5_BANK,<REG_N>", "0000nnnn11010010",
- "R[n] = Rn_BANK (5);",
- },
- { "n", "", "stc R6_BANK,<REG_N>", "0000nnnn11100010",
- "R[n] = Rn_BANK (6);",
- },
- { "n", "", "stc R7_BANK,<REG_N>", "0000nnnn11110010",
- "R[n] = Rn_BANK (7);",
- },
- { "n", "n", "stc.l GBR,@-<REG_N>", "0100nnnn00010011",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], GBR);;",
- },
- { "n", "n", "stc.l SR,@-<REG_N>", "0100nnnn00000011",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], GET_SR());",
- },
- { "n", "n", "stc.l VBR,@-<REG_N>", "0100nnnn00100011",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], VBR);",
+ "if (SR_MD)",
+ " R[n] = DBR; /* priv mode */",
+ "else",
+ " RAISE_EXCEPTION (SIGILL); /* user mode */",
},
- { "n", "n", "stc.l SSR,@-<REG_N>", "0100nnnn00110011",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], SSR);",
+ { "n", "", "stc TBR,<REG_N>", "0000nnnn01001010",
+ "if (SR_MD)", /* FIXME? */
+ " R[n] = TBR; /* priv mode */",
+ "else",
+ " RAISE_EXCEPTION (SIGILL); /* user mode */",
},
- { "n", "n", "stc.l SPC,@-<REG_N>", "0100nnnn01000011",
+ { "n", "n", "stc.l <CREG_M>,@-<REG_N>", "0100nnnnmmmm0011",
"MA (1);",
"R[n] -= 4;",
- "WLAT (R[n], SPC);",
+ "WLAT (R[n], CREG (m));",
},
- /* start-sanitize-sh4 */
-#if 0
{ "n", "n", "stc.l SGR,@-<REG_N>", "0100nnnn00110010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], SGR);",
+ "if (SR_MD)",
+ "{ /* priv mode */",
+ " MA (1);",
+ " R[n] -= 4;",
+ " WLAT (R[n], SGR);",
+ "}",
+ "else",
+ " RAISE_EXCEPTION (SIGILL); /* user mode */",
},
{ "n", "n", "stc.l DBR,@-<REG_N>", "0100nnnn11110010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], DBR);",
- },
-#endif
- /* end-sanitize-sh4 */
- { "n", "", "stc R0_BANK,@-<REG_N>", "0100nnnn10000010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (0));",
- },
- { "n", "", "stc R1_BANK,@-<REG_N>", "0100nnnn10010010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (1));",
- },
- { "n", "", "stc R2_BANK,@-<REG_N>", "0100nnnn10100010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (2));",
- },
- { "n", "", "stc R3_BANK,@-<REG_N>", "0100nnnn10110010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (3));",
- },
- { "n", "", "stc R4_BANK,@-<REG_N>", "0100nnnn11000010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (4));",
- },
- { "n", "", "stc R5_BANK,@-<REG_N>", "0100nnnn11010010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (5));",
- },
- { "n", "", "stc R6_BANK,@-<REG_N>", "0100nnnn11100010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (6));",
- },
- { "n", "", "stc R7_BANK,@-<REG_N>", "0100nnnn11110010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (7));",
- },
-
- /* sh3e */
- { "", "", "sts FPUL,<REG_N>", "0000nnnn01011010",
- "R[n] = FPUL;",
- },
- /* sh3e */
- { "", "", "sts.l FPUL,@-<REG_N>", "0100nnnn01010010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], FPUL);",
- },
- /* sh3e */
- { "", "", "sts FPSCR,<REG_N>", "0000nnnn01101010",
- "R[n] = GET_FPSCR ();",
- },
- /* sh3e */
- { "", "", "sts.l FPSCR,@-<REG_N>", "0100nnnn01100010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], GET_FPSCR ());",
+ "if (SR_MD)",
+ "{ /* priv mode */",
+ " MA (1);",
+ " R[n] -= 4;",
+ " WLAT (R[n], DBR);",
+ "}",
+ "else",
+ " RAISE_EXCEPTION (SIGILL); /* user mode */",
},
- { "n", "", "sts MACH,<REG_N>", "0000nnnn00001010",
- "R[n] = MACH;",
- },
- { "n", "", "sts MACL,<REG_N>", "0000nnnn00011010",
- "R[n] = MACL;",
+ { "n", "", "sts <SREG_M>,<REG_N>", "0000nnnnssss1010",
+ "R[n] = SREG (m);",
},
- { "n", "", "sts PR,<REG_N>", "0000nnnn00101010",
- "R[n] = PR;",
- },
- { "n", "n", "sts.l MACH,@-<REG_N>", "0100nnnn00000010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], MACH);",
- },
- { "n", "n", "sts.l MACL,@-<REG_N>", "0100nnnn00010010",
+ { "n", "n", "sts.l <SREG_M>,@-<REG_N>", "0100nnnnssss0010",
"MA (1);",
"R[n] -= 4;",
- "WLAT (R[n], MACL);",
- },
- { "n", "n", "sts.l PR,@-<REG_N>", "0100nnnn00100010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], PR);",
+ "WLAT (R[n], SREG (m));",
},
{ "n", "nm", "sub <REG_M>,<REG_N>", "0011nnnnmmmm1000",
{ "", "n", "tas.b @<REG_N>", "0100nnnn00011011",
"MA (1);",
- "ult = RBAT(R[n]);",
+ "ult = RBAT (R[n]);",
"SET_SR_T (ult == 0);",
- "WBAT(R[n],ult|0x80);",
+ "WBAT (R[n],ult|0x80);",
},
{ "0", "", "trapa #<imm>", "11000011i8*1....",
-#if 0
- /* SH-[12] */
"long imm = 0xff & i;",
- "if (i==0xc3)",
- " PC-=2;",
- "if (i<20||i==34||i==0xc3)",
- " trap(i,R,memory,maskl,maskw,little_endian);",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "if (i < 20 || i == 33 || i == 34 || i == 0xc3)",
+ " nip += trap (i, &R0, PC, memory, maskl, maskw, endianw);",
+#if 0
"else {",
- " R[15]-=4;",
- " WLAT(R[15],GET_SR());",
- " R[15]-=4;",
- " WLAT(R[15],PC+2);",
- " PC=RLAT(VBR+(imm<<2))-2;",
- "}",
+ /* SH-[12] */
+ " R[15] -= 4;",
+ " WLAT (R[15], GET_SR ());",
+ " R[15] -= 4;",
+ " WLAT (R[15], PH2T (PC + 2));",
#else
- "if (i == 0xc3)",
- " {",
- " nia = PC;",
- " trap (i, R, memory, maskl, maskw, little_endian);",
- " }",
- "else if (i < 20 || i==34 || i==0xc3)",
- " trap (i, R, memory, maskl, maskw, little_endian);",
"else if (!SR_BL) {",
- " /* FIXME: TRA = (imm << 2); */",
- " SSR = GET_SR();",
- " SPC = PC + 2;",
- " SET_SR (GET_SR() | SR_MASK_MD | SR_MASK_BL | SR_MASK_RB);",
+ " SSR = GET_SR ();",
+ " SPC = PH2T (PC + 2);",
+ " SET_SR (GET_SR () | SR_MASK_MD | SR_MASK_BL | SR_MASK_RB);",
" /* FIXME: EXPEVT = 0x00000160; */",
- " nia = VBR + 0x00000100;",
- "}",
#endif
+ " SET_NIP (PT2H (RLAT (VBR + (imm<<2))));",
+ "}",
},
{ "", "mn", "tst <REG_M>,<REG_N>", "0010nnnnmmmm1000",
" | ((R[m] << 16) & 0xffff0000));",
},
- /* start-sanitize-sh4 */
#if 0
{ "divs.l <REG_M>,<REG_N>", "0100nnnnmmmm1110",
- "divl(0,R[n],R[m]);",
+ "divl (0, R[n], R[m]);",
},
{ "divu.l <REG_M>,<REG_N>", "0100nnnnmmmm1101",
- "divl(0,R[n],R[m]);",
+ "divl (0, R[n], R[m]);",
},
#endif
- /* end-sanitize-sh4 */
{0, 0}};
+op movsxy_tab[] =
+{
+/* If this is disabled, the simulator speeds up by about 12% on a
+ 450 MHz PIII - 9% with ACE_FAST.
+ Maybe we should have separate simulator loops? */
+#if 1
+ { "n", "n", "movs.w @-<REG_N>,<DSP_REG_M>", "111101NNMMMM0000",
+ "MA (1);",
+ "R[n] -= 2;",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ },
+ { "", "n", "movs.w @<REG_N>,<DSP_REG_M>", "111101NNMMMM0100",
+ "MA (1);",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ },
+ { "n", "n", "movs.w @<REG_N>+,<DSP_REG_M>", "111101NNMMMM1000",
+ "MA (1);",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ "R[n] += 2;",
+ },
+ { "n", "n8","movs.w @<REG_N>+REG_8,<DSP_REG_M>", "111101NNMMMM1100",
+ "MA (1);",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ "R[n] += R[8];",
+ },
+ { "n", "n", "movs.w @-<REG_N>,<DSP_GRD_M>", "111101NNGGGG0000",
+ "MA (1);",
+ "R[n] -= 2;",
+ "DSP_R (m) = RSWAT (R[n]);",
+ },
+ { "", "n", "movs.w @<REG_N>,<DSP_GRD_M>", "111101NNGGGG0100",
+ "MA (1);",
+ "DSP_R (m) = RSWAT (R[n]);",
+ },
+ { "n", "n", "movs.w @<REG_N>+,<DSP_GRD_M>", "111101NNGGGG1000",
+ "MA (1);",
+ "DSP_R (m) = RSWAT (R[n]);",
+ "R[n] += 2;",
+ },
+ { "n", "n8","movs.w @<REG_N>+REG_8,<DSP_GRD_M>", "111101NNGGGG1100",
+ "MA (1);",
+ "DSP_R (m) = RSWAT (R[n]);",
+ "R[n] += R[8];",
+ },
+ { "n", "n", "movs.w <DSP_REG_M>,@-<REG_N>", "111101NNMMMM0001",
+ "MA (1);",
+ "R[n] -= 2;",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ },
+ { "", "n", "movs.w <DSP_REG_M>,@<REG_N>", "111101NNMMMM0101",
+ "MA (1);",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ },
+ { "n", "n", "movs.w <DSP_REG_M>,@<REG_N>+", "111101NNMMMM1001",
+ "MA (1);",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "R[n] += 2;",
+ },
+ { "n", "n8","movs.w <DSP_REG_M>,@<REG_N>+REG_8", "111101NNMMMM1101",
+ "MA (1);",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "R[n] += R[8];",
+ },
+ { "n", "n", "movs.w <DSP_GRD_M>,@-<REG_N>", "111101NNGGGG0001",
+ "MA (1);",
+ "R[n] -= 2;",
+ "WWAT (R[n], SEXT (DSP_R (m)));",
+ },
+ { "", "n", "movs.w <DSP_GRD_M>,@<REG_N>", "111101NNGGGG0101",
+ "MA (1);",
+ "WWAT (R[n], SEXT (DSP_R (m)));",
+ },
+ { "n", "n", "movs.w <DSP_GRD_M>,@<REG_N>+", "111101NNGGGG1001",
+ "MA (1);",
+ "WWAT (R[n], SEXT (DSP_R (m)));",
+ "R[n] += 2;",
+ },
+ { "n", "n8","movs.w <DSP_GRD_M>,@<REG_N>+REG_8", "111101NNGGGG1101",
+ "MA (1);",
+ "WWAT (R[n], SEXT (DSP_R (m)));",
+ "R[n] += R[8];",
+ },
+ { "n", "n", "movs.l @-<REG_N>,<DSP_REG_M>", "111101NNMMMM0010",
+ "MA (1);",
+ "R[n] -= 4;",
+ "DSP_R (m) = RLAT (R[n]);",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ },
+ { "", "n", "movs.l @<REG_N>,<DSP_REG_M>", "111101NNMMMM0110",
+ "MA (1);",
+ "DSP_R (m) = RLAT (R[n]);",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ },
+ { "n", "n", "movs.l @<REG_N>+,<DSP_REG_M>", "111101NNMMMM1010",
+ "MA (1);",
+ "DSP_R (m) = RLAT (R[n]);",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ "R[n] += 4;",
+ },
+ { "n", "n8","movs.l @<REG_N>+REG_8,<DSP_REG_M>", "111101NNMMMM1110",
+ "MA (1);",
+ "DSP_R (m) = RLAT (R[n]);",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ "R[n] += R[8];",
+ },
+ { "n", "n", "movs.l <DSP_REG_M>,@-<REG_N>", "111101NNMMMM0011",
+ "MA (1);",
+ "R[n] -= 4;",
+ "WLAT (R[n], DSP_R (m));",
+ },
+ { "", "n", "movs.l <DSP_REG_M>,@<REG_N>", "111101NNMMMM0111",
+ "MA (1);",
+ "WLAT (R[n], DSP_R (m));",
+ },
+ { "n", "n", "movs.l <DSP_REG_M>,@<REG_N>+", "111101NNMMMM1011",
+ "MA (1);",
+ "WLAT (R[n], DSP_R (m));",
+ "R[n] += 4;",
+ },
+ { "n", "n8","movs.l <DSP_REG_M>,@<REG_N>+REG_8", "111101NNMMMM1111",
+ "MA (1);",
+ "WLAT (R[n], DSP_R (m));",
+ "R[n] += R[8];",
+ },
+ { "n", "n", "movs.l <DSP_GRD_M>,@-<REG_N>", "111101NNGGGG0011",
+ "MA (1);",
+ "R[n] -= 4;",
+ "WLAT (R[n], SEXT (DSP_R (m)));",
+ },
+ { "", "n", "movs.l <DSP_GRD_M>,@<REG_N>", "111101NNGGGG0111",
+ "MA (1);",
+ "WLAT (R[n], SEXT (DSP_R (m)));",
+ },
+ { "n", "n", "movs.l <DSP_GRD_M>,@<REG_N>+", "111101NNGGGG1011",
+ "MA (1);",
+ "WLAT (R[n], SEXT (DSP_R (m)));",
+ "R[n] += 4;",
+ },
+ { "n", "n8","movs.l <DSP_GRD_M>,@<REG_N>+REG_8", "111101NNGGGG1111",
+ "MA (1);",
+ "WLAT (R[n], SEXT (DSP_R (m)));",
+ "R[n] += R[8];",
+ },
+ { "", "n", "movx.w @<REG_xy>,<DSP_XY>", "111100xyXY0001??",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "if (iword & 3)",
+ " {",
+ " iword &= 0xfd53; goto top;",
+ " }",
+ },
+ { "", "n", "movx.l @<REG_xy>,<DSP_XY>", "111100xyXY010100",
+ "DSP_R (m) = RLAT (R[n]);",
+ },
+ { "n", "n", "movx.w @<REG_xy>+,<DSP_XY>", "111100xyXY0010??",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : 2;",
+ "if (iword & 3)",
+ " {",
+ " iword &= 0xfd53; goto top;",
+ " }",
+ },
+ { "n", "n", "movx.l @<REG_xy>+,<DSP_XY>", "111100xyXY011000",
+ "DSP_R (m) = RLAT (R[n]);",
+ "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : 4;",
+ },
+ { "n", "n8","movx.w @<REG_xy>+REG_8,<DSP_XY>", "111100xyXY0011??",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : R[8];",
+ "if (iword & 3)",
+ " {",
+ " iword &= 0xfd53; goto top;",
+ " }",
+ },
+ { "n", "n8","movx.l @<REG_xy>+REG_8,<DSP_XY>", "111100xyXY011100",
+ "DSP_R (m) = RLAT (R[n]);",
+ "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : R[8];",
+ },
+ { "", "n", "movx.w <DSP_Ax>,@<REG_xy>", "111100xyax1001??",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "if (iword & 3)",
+ " {",
+ " iword &= 0xfd53; goto top;",
+ " }",
+ },
+ { "", "n", "movx.l <DSP_Ax>,@<REG_xy>", "111100xyax110100",
+ "WLAT (R[n], DSP_R (m));",
+ },
+ { "n", "n", "movx.w <DSP_Ax>,@<REG_xy>+", "111100xyax1010??",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : 2;",
+ "if (iword & 3)",
+ " {",
+ " iword &= 0xfd53; goto top;",
+ " }",
+ },
+ { "n", "n", "movx.l <DSP_Ax>,@<REG_xy>+", "111100xyax111000",
+ "WLAT (R[n], DSP_R (m));",
+ "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : 4;",
+ },
+ { "n", "n8","movx.w <DSP_Ax>,@<REG_xy>+REG_8","111100xyax1011??",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : R[8];",
+ "if (iword & 3)",
+ " {",
+ " iword &= 0xfd53; goto top;",
+ " }",
+ },
+ { "n", "n8","movx.l <DSP_Ax>,@<REG_xy>+REG_8","111100xyax111100",
+ "WLAT (R[n], DSP_R (m));",
+ "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : R[8];",
+ },
+ { "", "n", "movy.w @<REG_yx>,<DSP_YX>", "111100yxYX000001",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ },
+ { "n", "n", "movy.w @<REG_yx>+,<DSP_YX>", "111100yxYX000010",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : 2;",
+ },
+ { "n", "n9","movy.w @<REG_yx>+REG_9,<DSP_YX>", "111100yxYX000011",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : R[9];",
+ },
+ { "", "n", "movy.w <DSP_Ay>,@<REG_yx>", "111100yxAY010001",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ },
+ { "n", "n", "movy.w <DSP_Ay>,@<REG_yx>+", "111100yxAY010010",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : 2;",
+ },
+ { "n", "n9", "movy.w <DSP_Ay>,@<REG_yx>+REG_9", "111100yxAY010011",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : R[9];",
+ },
+ { "", "n", "movy.l @<REG_yx>,<DSP_YX>", "111100yxYX100001",
+ "DSP_R (m) = RLAT (R[n]);",
+ },
+ { "n", "n", "movy.l @<REG_yx>+,<DSP_YX>", "111100yxYX100010",
+ "DSP_R (m) = RLAT (R[n]);",
+ "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : 4;",
+ },
+ { "n", "n9","movy.l @<REG_yx>+REG_9,<DSP_YX>", "111100yxYX100011",
+ "DSP_R (m) = RLAT (R[n]);",
+ "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : R[9];",
+ },
+ { "", "n", "movy.l <DSP_Ay>,@<REG_yx>", "111100yxAY110001",
+ "WLAT (R[n], DSP_R (m));",
+ },
+ { "n", "n", "movy.l <DSP_Ay>,@<REG_yx>+", "111100yxAY110010",
+ "WLAT (R[n], DSP_R (m));",
+ "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : 4;",
+ },
+ { "n", "n9", "movy.l <DSP_Ay>,@<REG_yx>+REG_9", "111100yxAY110011",
+ "WLAT (R[n], DSP_R (m));",
+ "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : R[9];",
+ },
+ { "", "", "nopx nopy", "1111000000000000",
+ "/* nop */",
+ },
+ { "", "", "ppi", "1111100000000000",
+ "RAISE_EXCEPTION_IF_IN_DELAY_SLOT ();",
+ "ppi_insn (RIAT (nip));",
+ "SET_NIP (nip + 2);",
+ "iword &= 0xf7ff; goto top;",
+ },
+#endif
+ {0, 0}};
+
+op ppi_tab[] =
+{
+ { "","", "pshl #<imm>,dz", "00000iiim16.zzzz",
+ "int Sz = DSP_R (z) & 0xffff0000;",
+ "",
+ "if (i <= 16)",
+ " res = Sz << i;",
+ "else if (i >= 128 - 16)",
+ " res = (unsigned) Sz >> 128 - i; /* no sign extension */",
+ "else",
+ " {",
+ " RAISE_EXCEPTION (SIGILL);",
+ " return;",
+ " }",
+ "res &= 0xffff0000;",
+ "res_grd = 0;",
+ "goto logical;",
+ },
+ { "","", "psha #<imm>,dz", "00010iiim32.zzzz",
+ "int Sz = DSP_R (z);",
+ "int Sz_grd = GET_DSP_GRD (z);",
+ "",
+ "if (i <= 32)",
+ " {",
+ " if (i == 32)",
+ " {",
+ " res = 0;",
+ " res_grd = Sz;",
+ " }",
+ " else",
+ " {",
+ " res = Sz << i;",
+ " res_grd = Sz_grd << i | (unsigned) Sz >> 32 - i;",
+ " }",
+ " res_grd = SEXT (res_grd);",
+ " carry = res_grd & 1;",
+ " }",
+ "else if (i >= 96)",
+ " {",
+ " i = 128 - i;",
+ " if (i == 32)",
+ " {",
+ " res_grd = SIGN32 (Sz_grd);",
+ " res = Sz_grd;",
+ " }",
+ " else",
+ " {",
+ " res = Sz >> i | Sz_grd << 32 - i;",
+ " res_grd = Sz_grd >> i;",
+ " }",
+ " carry = Sz >> (i - 1) & 1;",
+ " }",
+ "else",
+ " {",
+ " RAISE_EXCEPTION (SIGILL);",
+ " return;",
+ " }",
+ "COMPUTE_OVERFLOW;",
+ "greater_equal = 0;",
+ },
+ { "","", "pmuls Se,Sf,Dg", "0100eeffxxyygguu",
+ "res = (DSP_R (e) >> 16) * (DSP_R (f) >> 16) * 2;",
+ "if (res == 0x80000000)",
+ " res = 0x7fffffff;",
+ "DSP_R (g) = res;",
+ "DSP_GRD (g) = SIGN32 (res);",
+ "return;",
+ },
+ { "","", "psub Sx,Sy,Du pmuls Se,Sf,Dg", "0110eeffxxyygguu",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = (DSP_R (e) >> 16) * (DSP_R (f) >> 16) * 2;",
+ "if (res == 0x80000000)",
+ " res = 0x7fffffff;",
+ "DSP_R (g) = res;",
+ "DSP_GRD (g) = SIGN32 (res);",
+ "",
+ "z = u;",
+ "res = Sx - Sy;",
+ "carry = (unsigned) res > (unsigned) Sx;",
+ "res_grd = Sx_grd - Sy_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "padd Sx,Sy,Du pmuls Se,Sf,Dg", "0111eeffxxyygguu",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = (DSP_R (e) >> 16) * (DSP_R (f) >> 16) * 2;",
+ "if (res == 0x80000000)",
+ " res = 0x7fffffff;",
+ "DSP_R (g) = res;",
+ "DSP_GRD (g) = SIGN32 (res);",
+ "",
+ "z = u;",
+ "res = Sx + Sy;",
+ "carry = (unsigned) res < (unsigned) Sx;",
+ "res_grd = Sx_grd + Sy_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ },
+ { "","", "psubc Sx,Sy,Dz", "10100000xxyyzzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sx - Sy - (DSR & 1);",
+ "carry = (unsigned) res > (unsigned) Sx || (res == Sx && Sy);",
+ "res_grd = Sx_grd + Sy_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ "DSR &= ~0xf1;\n",
+ "if (res || res_grd)\n",
+ " DSR |= greater_equal | res_grd >> 2 & DSR_MASK_N | overflow;\n",
+ "else\n",
+ " DSR |= DSR_MASK_Z | overflow;\n",
+ "DSR |= carry;\n",
+ "goto assign_z;\n",
+ },
+ { "","", "paddc Sx,Sy,Dz", "10110000xxyyzzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sx + Sy + (DSR & 1);",
+ "carry = (unsigned) res < (unsigned) Sx || (res == Sx && Sy);",
+ "res_grd = Sx_grd + Sy_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ "DSR &= ~0xf1;\n",
+ "if (res || res_grd)\n",
+ " DSR |= greater_equal | res_grd >> 2 & DSR_MASK_N | overflow;\n",
+ "else\n",
+ " DSR |= DSR_MASK_Z | overflow;\n",
+ "DSR |= carry;\n",
+ "goto assign_z;\n",
+ },
+ { "","", "pcmp Sx,Sy", "10000100xxyyzzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "z = 17; /* Ignore result. */",
+ "res = Sx - Sy;",
+ "carry = (unsigned) res > (unsigned) Sx;",
+ "res_grd = Sx_grd - Sy_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "pwsb Sx,Sy,Dz", "10100100xxyyzzzz",
+ },
+ { "","", "pwad Sx,Sy,Dz", "10110100xxyyzzzz",
+ },
+ { "","", "(if cc) pabs Sx,Dz", "100010ccxx01zzzz",
+ "/* FIXME: duplicate code pabs. */",
+ "res = DSP_R (x);",
+ "res_grd = GET_DSP_GRD (x);",
+ "if (res >= 0)",
+ " carry = 0;",
+ "else",
+ " {",
+ " res = -res;",
+ " carry = (res != 0); /* The manual has a bug here. */",
+ " res_grd = -res_grd - carry;",
+ " }",
+ "COMPUTE_OVERFLOW;",
+ "/* ??? The re-computing of overflow after",
+ " saturation processing is specific to pabs. */",
+ "overflow = res_grd != SIGN32 (res) ? DSR_MASK_V : 0;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "pabs Sx,Dz", "10001000xx..zzzz",
+ "res = DSP_R (x);",
+ "res_grd = GET_DSP_GRD (x);",
+ "if (res >= 0)",
+ " carry = 0;",
+ "else",
+ " {",
+ " res = -res;",
+ " carry = (res != 0); /* The manual has a bug here. */",
+ " res_grd = -res_grd - carry;",
+ " }",
+ "COMPUTE_OVERFLOW;",
+ "/* ??? The re-computing of overflow after",
+ " saturation processing is specific to pabs. */",
+ "overflow = res_grd != SIGN32 (res) ? DSR_MASK_V : 0;",
+ "ADD_SUB_GE;",
+ },
+
+ { "","", "(if cc) prnd Sx,Dz", "100110ccxx01zzzz",
+ "/* FIXME: duplicate code prnd. */",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "",
+ "res = (Sx + 0x8000) & 0xffff0000;",
+ "carry = (unsigned) res < (unsigned) Sx;",
+ "res_grd = Sx_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "prnd Sx,Dz", "10011000xx..zzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "",
+ "res = (Sx + 0x8000) & 0xffff0000;",
+ "carry = (unsigned) res < (unsigned) Sx;",
+ "res_grd = Sx_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+
+ { "","", "(if cc) pabs Sy,Dz", "101010cc01yyzzzz",
+ "/* FIXME: duplicate code pabs. */",
+ "res = DSP_R (y);",
+ "res_grd = 0;",
+ "overflow = 0;",
+ "greater_equal = DSR_MASK_G;",
+ "if (res >= 0)",
+ " carry = 0;",
+ "else",
+ " {",
+ " res = -res;",
+ " carry = 1;",
+ " if (res < 0)",
+ " {",
+ " if (S)",
+ " res = 0x7fffffff;",
+ " else",
+ " {",
+ " overflow = DSR_MASK_V;",
+ " greater_equal = 0;",
+ " }",
+ " }",
+ " }",
+ },
+ { "","", "pabs Sy,Dz", "10101000..yyzzzz",
+ "res = DSP_R (y);",
+ "res_grd = 0;",
+ "overflow = 0;",
+ "greater_equal = DSR_MASK_G;",
+ "if (res >= 0)",
+ " carry = 0;",
+ "else",
+ " {",
+ " res = -res;",
+ " carry = 1;",
+ " if (res < 0)",
+ " {",
+ " if (S)",
+ " res = 0x7fffffff;",
+ " else",
+ " {",
+ " overflow = DSR_MASK_V;",
+ " greater_equal = 0;",
+ " }",
+ " }",
+ " }",
+ },
+ { "","", "(if cc) prnd Sy,Dz", "101110cc01yyzzzz",
+ "/* FIXME: duplicate code prnd. */",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = (Sy + 0x8000) & 0xffff0000;",
+ "carry = (unsigned) res < (unsigned) Sy;",
+ "res_grd = Sy_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "prnd Sy,Dz", "10111000..yyzzzz",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = (Sy + 0x8000) & 0xffff0000;",
+ "carry = (unsigned) res < (unsigned) Sy;",
+ "res_grd = Sy_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pshl Sx,Sy,Dz", "100000ccxxyyzzzz",
+ "int Sx = DSP_R (x) & 0xffff0000;",
+ "int Sy = DSP_R (y) >> 16 & 0x7f;",
+ "",
+ "if (Sy <= 16)",
+ " res = Sx << Sy;",
+ "else if (Sy >= 128 - 16)",
+ " res = (unsigned) Sx >> 128 - Sy; /* no sign extension */",
+ "else",
+ " {",
+ " RAISE_EXCEPTION (SIGILL);",
+ " return;",
+ " }",
+ "goto cond_logical;",
+ },
+ { "","", "(if cc) psha Sx,Sy,Dz", "100100ccxxyyzzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y) >> 16 & 0x7f;",
+ "",
+ "if (Sy <= 32)",
+ " {",
+ " if (Sy == 32)",
+ " {",
+ " res = 0;",
+ " res_grd = Sx;",
+ " }",
+ " else",
+ " {",
+ " res = Sx << Sy;",
+ " res_grd = Sx_grd << Sy | (unsigned) Sx >> 32 - Sy;",
+ " }",
+ " res_grd = SEXT (res_grd);",
+ " carry = res_grd & 1;",
+ " }",
+ "else if (Sy >= 96)",
+ " {",
+ " Sy = 128 - Sy;",
+ " if (Sy == 32)",
+ " {",
+ " res_grd = SIGN32 (Sx_grd);",
+ " res = Sx_grd;",
+ " }",
+ " else",
+ " {",
+ " res = Sx >> Sy | Sx_grd << 32 - Sy;",
+ " res_grd = Sx_grd >> Sy;",
+ " }",
+ " carry = Sx >> (Sy - 1) & 1;",
+ " }",
+ "else",
+ " {",
+ " RAISE_EXCEPTION (SIGILL);",
+ " return;",
+ " }",
+ "COMPUTE_OVERFLOW;",
+ "greater_equal = 0;",
+ },
+ { "","", "(if cc) psub Sx,Sy,Dz", "101000ccxxyyzzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sx - Sy;",
+ "carry = (unsigned) res > (unsigned) Sx;",
+ "res_grd = Sx_grd - Sy_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) psub Sy,Sx,Dz", "100001ccxxyyzzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sy - Sx;",
+ "carry = (unsigned) res > (unsigned) Sy;",
+ "res_grd = Sy_grd - Sx_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) padd Sx,Sy,Dz", "101100ccxxyyzzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sx + Sy;",
+ "carry = (unsigned) res < (unsigned) Sx;",
+ "res_grd = Sx_grd + Sy_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pand Sx,Sy,Dz", "100101ccxxyyzzzz",
+ "res = DSP_R (x) & DSP_R (y);",
+ "cond_logical:",
+ "res &= 0xffff0000;",
+ "res_grd = 0;",
+ "if (iword & 0x200)\n",
+ " goto assign_z;\n",
+ "logical:",
+ "carry = 0;",
+ "overflow = 0;",
+ "greater_equal = 0;",
+ "DSR &= ~0xf1;\n",
+ "if (res)\n",
+ " DSR |= res >> 26 & DSR_MASK_N;\n",
+ "else\n",
+ " DSR |= DSR_MASK_Z;\n",
+ "goto assign_dc;\n",
+ },
+ { "","", "(if cc) pxor Sx,Sy,Dz", "101001ccxxyyzzzz",
+ "res = DSP_R (x) ^ DSP_R (y);",
+ "goto cond_logical;",
+ },
+ { "","", "(if cc) por Sx,Sy,Dz", "101101ccxxyyzzzz",
+ "res = DSP_R (x) | DSP_R (y);",
+ "goto cond_logical;",
+ },
+ { "","", "(if cc) pdec Sx,Dz", "100010ccxx..zzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "",
+ "res = Sx - 0x10000;",
+ "carry = res > Sx;",
+ "res_grd = Sx_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ "res &= 0xffff0000;",
+ },
+ { "","", "(if cc) pinc Sx,Dz", "100110ccxx..zzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "",
+ "res = Sx + 0x10000;",
+ "carry = res < Sx;",
+ "res_grd = Sx_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ "res &= 0xffff0000;",
+ },
+ { "","", "(if cc) pdec Sy,Dz", "101010cc..yyzzzz",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sy - 0x10000;",
+ "carry = res > Sy;",
+ "res_grd = Sy_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ "res &= 0xffff0000;",
+ },
+ { "","", "(if cc) pinc Sy,Dz", "101110cc..yyzzzz",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sy + 0x10000;",
+ "carry = res < Sy;",
+ "res_grd = Sy_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ "res &= 0xffff0000;",
+ },
+ { "","", "(if cc) pclr Dz", "100011cc....zzzz",
+ "res = 0;",
+ "res_grd = 0;",
+ "carry = 0;",
+ "overflow = 0;",
+ "greater_equal = 1;",
+ },
+ { "","", "pclr Du pmuls Se,Sf,Dg", "0100eeff0001gguu",
+ "/* Do multiply. */",
+ "res = (DSP_R (e) >> 16) * (DSP_R (f) >> 16) * 2;",
+ "if (res == 0x80000000)",
+ " res = 0x7fffffff;",
+ "DSP_R (g) = res;",
+ "DSP_GRD (g) = SIGN32 (res);",
+ "/* FIXME: update DSR based on results of multiply! */",
+ "",
+ "/* Do clr. */",
+ "z = u;",
+ "res = 0;",
+ "res_grd = 0;",
+ "goto assign_z;",
+ },
+ { "","", "(if cc) pdmsb Sx,Dz", "100111ccxx..zzzz",
+ "unsigned Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int i = 16;",
+ "",
+ "if (Sx_grd < 0)",
+ " {",
+ " Sx_grd = ~Sx_grd;",
+ " Sx = ~Sx;",
+ " }",
+ "if (Sx_grd)",
+ " {",
+ " Sx = Sx_grd;",
+ " res = -2;",
+ " }",
+ "else if (Sx)",
+ " res = 30;",
+ "else",
+ " res = 31;",
+ "do",
+ " {",
+ " if (Sx & ~0 << i)",
+ " {",
+ " res -= i;",
+ " Sx >>= i;",
+ " }",
+ " }",
+ "while (i >>= 1);",
+ "res <<= 16;",
+ "res_grd = SIGN32 (res);",
+ "carry = 0;",
+ "overflow = 0;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pdmsb Sy,Dz", "101111cc..yyzzzz",
+ "unsigned Sy = DSP_R (y);",
+ "int i;",
+ "",
+ "if (Sy < 0)",
+ " Sy = ~Sy;",
+ "Sy <<= 1;",
+ "res = 31;",
+ "do",
+ " {",
+ " if (Sy & ~0 << i)",
+ " {",
+ " res -= i;",
+ " Sy >>= i;",
+ " }",
+ " }",
+ "while (i >>= 1);",
+ "res <<= 16;",
+ "res_grd = SIGN32 (res);",
+ "carry = 0;",
+ "overflow = 0;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pneg Sx,Dz", "110010ccxx..zzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "",
+ "res = 0 - Sx;",
+ "carry = res != 0;",
+ "res_grd = 0 - Sx_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pcopy Sx,Dz", "110110ccxx..zzzz",
+ "res = DSP_R (x);",
+ "res_grd = GET_DSP_GRD (x);",
+ "carry = 0;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pneg Sy,Dz", "111010cc..yyzzzz",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = 0 - Sy;",
+ "carry = res != 0;",
+ "res_grd = 0 - Sy_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pcopy Sy,Dz", "111110cc..yyzzzz",
+ "res = DSP_R (y);",
+ "res_grd = SIGN32 (res);",
+ "carry = 0;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) psts MACH,Dz", "110011cc....zzzz",
+ "res = MACH;",
+ "res_grd = SIGN32 (res);",
+ "goto assign_z;",
+ },
+ { "","", "(if cc) psts MACL,Dz", "110111cc....zzzz",
+ "res = MACL;",
+ "res_grd = SIGN32 (res);",
+ "goto assign_z;",
+ },
+ { "","", "(if cc) plds Dz,MACH", "111011cc....zzzz",
+ "if (0xa05f >> z & 1)",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else",
+ " MACH = DSP_R (z);",
+ "return;",
+ },
+ { "","", "(if cc) plds Dz,MACL", "111111cc....zzzz",
+ "if (0xa05f >> z & 1)",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else",
+ " MACL = DSP_R (z) = res;",
+ "return;",
+ },
+ /* sh4a */
+ { "","", "(if cc) pswap Sx,Dz", "100111ccxx01zzzz",
+ "int Sx = DSP_R (x);",
+ "",
+ "res = ((Sx & 0xffff) * 65536) + ((Sx >> 16) & 0xffff);",
+ "res_grd = GET_DSP_GRD (x);",
+ "carry = 0;",
+ "overflow = 0;",
+ "greater_equal = res & 0x80000000 ? 0 : DSR_MASK_G;",
+ },
+ /* sh4a */
+ { "","", "(if cc) pswap Sy,Dz", "101111cc01yyzzzz",
+ "int Sy = DSP_R (y);",
+ "",
+ "res = ((Sy & 0xffff) * 65536) + ((Sy >> 16) & 0xffff);",
+ "res_grd = SIGN32 (Sy);",
+ "carry = 0;",
+ "overflow = 0;",
+ "greater_equal = res & 0x80000000 ? 0 : DSR_MASK_G;",
+ },
+
+ {0, 0}
+};
+
/* Tables of things to put into enums for sh-opc.h */
static char *nibble_type_list[] =
{
{
char bufa[9];
char bufb[9];
+ int diff;
+
memcpy (bufa, a->code, 4);
memcpy (bufa + 4, a->code + 12, 4);
bufa[8] = 0;
memcpy (bufb, b->code, 4);
memcpy (bufb + 4, b->code + 12, 4);
bufb[8] = 0;
- return (strcmp (bufa, bufb));
+ diff = strcmp (bufa, bufb);
+ /* Stabilize the sort, so that later entries can override more general
+ preceding entries. */
+ return diff ? diff : a - b;
}
static void
qsort (tab, len, sizeof (*p), qfunc);
}
-static void
-printonmatch (ptr, a, rep)
- char **ptr;
- char *a;
- char *rep;
-{
- int l = strlen (a);
- if (strncmp (*ptr, a, l) == 0)
- {
- printf ("%s", rep);
- *ptr += l;
- if (**ptr)
- printf (",");
- }
-}
-
-
-static
-void
-think (o)
- op *o;
-{
- char *n;
- char *p;
-
- printf ("{\"");
- n = o->name;
- while (*n && *n != ' ')
- {
- printf ("%c", *n);
- n++;
- }
- printf ("\",{");
-
- p = n;
-
- if (!*p)
- {
- printf ("0");
- }
- while (*p)
- {
- while (*p == ',' || *p == ' ')
- p++;
- printonmatch (&p, "#<imm>", "A_IMM");
- printonmatch (&p, "R0", "A_R0");
- printonmatch (&p, "<REG_N>", "A_REG_N");
- printonmatch (&p, "@<REG_N>+", "A_INC_N");
- printonmatch (&p, "@<REG_N>", "A_IND_N");
- printonmatch (&p, "@-<REG_N>", "A_DEC_N");
- printonmatch (&p, "<REG_M>", " A_REG_M");
- printonmatch (&p, "@<REG_M>+", "A_INC_M");
- printonmatch (&p, "@<REG_M>", "A_IND_M");
- printonmatch (&p, "@-<REG_M>", "A_DEC_M");
- printonmatch (&p, "@(<disp>,PC)", "A_DISP_PC");
- printonmatch (&p, "@(<disp>,<REG_M>)", "A_DISP_REG_M");
- printonmatch (&p, "@(<disp>,<REG_N>)", "A_DISP_REG_N");
- printonmatch (&p, "@(R0,<REG_N>)", "A_IND_R0_REG_N");
- printonmatch (&p, "@(R0,<REG_M>)", "A_IND_R0_REG_M");
- printonmatch (&p, "@(<disp>,GBR)", "A_DISP_GBR");
- printonmatch (&p, "@(R0,GBR)", "A_R0_GBR");
- printonmatch (&p, "<bdisp8>", "A_BDISP8");
- printonmatch (&p, "<bdisp12>", "A_BDISP12");
- printonmatch (&p, "SR", "A_SR");
- printonmatch (&p, "GBR", "A_GBR");
- printonmatch (&p, "VBR", "A_VBR");
- printonmatch (&p, "SSR", "A_SSR");
- printonmatch (&p, "SPC", "A_SPC");
- printonmatch (&p, "MACH", "A_MACH");
- printonmatch (&p, "MACL", "A_MACL");
- printonmatch (&p, "PR", "A_PR");
-
- }
- printf ("},{");
-
- p = o->code;
- while (*p)
- {
- printonmatch (&p, "0000", "HEX_0");
- printonmatch (&p, "0001", "HEX_1");
- printonmatch (&p, "0010", "HEX_2");
- printonmatch (&p, "0011", "HEX_3");
- printonmatch (&p, "0100", "HEX_4");
- printonmatch (&p, "0101", "HEX_5");
- printonmatch (&p, "0110", "HEX_6");
- printonmatch (&p, "0111", "HEX_7");
-
- printonmatch (&p, "1000", "HEX_8");
- printonmatch (&p, "1001", "HEX_9");
- printonmatch (&p, "1010", "HEX_A");
- printonmatch (&p, "1011", "HEX_B");
- printonmatch (&p, "1100", "HEX_C");
- printonmatch (&p, "1101", "HEX_D");
- printonmatch (&p, "1110", "HEX_E");
- printonmatch (&p, "1111", "HEX_F");
- printonmatch (&p, "i8*1....", "IMM_8");
- printonmatch (&p, "i4*1", "IMM_4");
- printonmatch (&p, "i8p4....", "PCRELIMM_8BY4");
- printonmatch (&p, "i8p2....", "PCRELIMM_8BY2");
- printonmatch (&p, "i8*2....", "IMM_8BY2");
- printonmatch (&p, "i4*2", "IMM_4BY2");
- printonmatch (&p, "i8*4....", "IMM_8BY4");
- printonmatch (&p, "i4*4", "IMM_4BY4");
- printonmatch (&p, "i12.........", "BRANCH_12");
- printonmatch (&p, "i8p1....", "BRANCH_8");
- printonmatch (&p, "nnnn", "REG_N");
- printonmatch (&p, "mmmm", "REG_M");
-
- }
- printf ("}},\n");
-}
-
static void
gengastab ()
{
{
printf ("%s %-30s\n", p->code, p->name);
}
-
-
}
+static unsigned short table[1 << 16];
+
+static int warn_conflicts = 0;
static void
-genopc ()
+conflict_warn (val, i)
+ int val;
+ int i;
{
- op *p;
- make_enum_list ("sh_nibble_type", nibble_type_list);
- make_enum_list ("sh_arg_type", arg_type_list);
-
- printf ("typedef struct {\n");
- printf ("char *name;\n");
- printf ("sh_arg_type arg[3];\n");
- printf ("sh_nibble_type nibbles[4];\n");
- printf ("} sh_opcode_info;\n");
- printf ("#ifdef DEFINE_TABLE\n");
- printf ("sh_opcode_info sh_table[]={\n");
- for (p = tab; p->name; p++)
- {
- printf ("\n/* %s %-20s*/", p->code, p->name);
- think (p);
- }
- printf ("0};\n");
- printf ("#endif\n");
-}
-
-
-
+ int ix, key;
+ int j = table[val];
+ fprintf (stderr, "Warning: opcode table conflict: 0x%04x (idx %d && %d)\n",
+ val, i, table[val]);
+ for (ix = sizeof (tab) / sizeof (tab[0]); ix >= 0; ix--)
+ if (tab[ix].index == i || tab[ix].index == j)
+ {
+ key = ((tab[ix].code[0] - '0') << 3) +
+ ((tab[ix].code[1] - '0') << 2) +
+ ((tab[ix].code[2] - '0') << 1) +
+ ((tab[ix].code[3] - '0'));
-/* Convert a string of 4 binary digits into an int */
+ if (val >> 12 == key)
+ fprintf (stderr, " %s -- %s\n", tab[ix].code, tab[ix].name);
+ }
-static
-int
-bton (s)
- char *s;
+ for (ix = sizeof (movsxy_tab) / sizeof (movsxy_tab[0]); ix >= 0; ix--)
+ if (movsxy_tab[ix].index == i || movsxy_tab[ix].index == j)
+ {
+ key = ((movsxy_tab[ix].code[0] - '0') << 3) +
+ ((movsxy_tab[ix].code[1] - '0') << 2) +
+ ((movsxy_tab[ix].code[2] - '0') << 1) +
+ ((movsxy_tab[ix].code[3] - '0'));
+
+ if (val >> 12 == key)
+ fprintf (stderr, " %s -- %s\n",
+ movsxy_tab[ix].code, movsxy_tab[ix].name);
+ }
-{
- int n = 0;
- int v = 8;
- while (v)
- {
- if (*s == '1')
- n |= v;
- v >>= 1;
- s++;
- }
- return n;
+ for (ix = sizeof (ppi_tab) / sizeof (ppi_tab[0]); ix >= 0; ix--)
+ if (ppi_tab[ix].index == i || ppi_tab[ix].index == j)
+ {
+ key = ((ppi_tab[ix].code[0] - '0') << 3) +
+ ((ppi_tab[ix].code[1] - '0') << 2) +
+ ((ppi_tab[ix].code[2] - '0') << 1) +
+ ((ppi_tab[ix].code[3] - '0'));
+
+ if (val >> 12 == key)
+ fprintf (stderr, " %s -- %s\n",
+ ppi_tab[ix].code, ppi_tab[ix].name);
+ }
}
-static unsigned char table[1 << 16];
-
-/* Take an opcode expand all varying fields in it out and fill all the
- right entries in 'table' with the opcode index*/
+/* Take an opcode, expand all varying fields in it out and fill all the
+ right entries in 'table' with the opcode index. */
static void
-expand_opcode (shift, val, i, s)
- int shift;
+expand_opcode (val, i, s)
int val;
int i;
char *s;
{
- int j;
-
if (*s == 0)
{
+ if (warn_conflicts && table[val] != 0)
+ conflict_warn (val, i);
table[val] = i;
}
else
{
+ int j = 0, m = 0;
+
switch (s[0])
{
-
+ default:
+ fprintf (stderr, "expand_opcode: illegal char '%c'\n", s[0]);
+ exit (1);
case '0':
case '1':
- {
-
- int n = bton (s);
- if (n >= 0)
- {
- expand_opcode (shift - 4, val | (n << shift), i, s + 4);
- }
- break;
- }
+ /* Consume an arbitrary number of ones and zeros. */
+ do {
+ j = (j << 1) + (s[m++] - '0');
+ } while (s[m] == '0' || s[m] == '1');
+ expand_opcode ((val << m) | j, i, s + m);
+ break;
+ case 'N': /* NN -- four-way fork */
+ for (j = 0; j < 4; j++)
+ expand_opcode ((val << 2) | j, i, s + 2);
+ break;
+ case 'x': /* xx or xy -- two-way or four-way fork */
+ for (j = 0; j < 4; j += (s[1] == 'x' ? 2 : 1))
+ expand_opcode ((val << 2) | j, i, s + 2);
+ break;
+ case 'y': /* yy or yx -- two-way or four-way fork */
+ for (j = 0; j < (s[1] == 'x' ? 4 : 2); j++)
+ expand_opcode ((val << 2) | j, i, s + 2);
+ break;
+ case '?': /* Seven-way "wildcard" fork for movxy */
+ expand_opcode ((val << 2), i, s + 2);
+ for (j = 1; j < 4; j++)
+ {
+ expand_opcode ((val << 2) | j, i, s + 2);
+ expand_opcode ((val << 2) | (j + 16), i, s + 2);
+ }
+ break;
+ case 'i': /* eg. "i8*1" */
+ case '.': /* "...." is a wildcard */
case 'n':
case 'm':
+ /* nnnn, mmmm, i#*#, .... -- 16-way fork. */
for (j = 0; j < 16; j++)
+ expand_opcode ((val << 4) | j, i, s + 4);
+ break;
+ case 'e':
+ /* eeee -- even numbered register:
+ 8 way fork. */
+ for (j = 0; j < 15; j += 2)
+ expand_opcode ((val << 4) | j, i, s + 4);
+ break;
+ case 'M':
+ /* A0, A1, X0, X1, Y0, Y1, M0, M1, A0G, A1G:
+ MMMM -- 10-way fork */
+ expand_opcode ((val << 4) | 5, i, s + 4);
+ for (j = 7; j < 16; j++)
+ expand_opcode ((val << 4) | j, i, s + 4);
+ break;
+ case 'G':
+ /* A1G, A0G:
+ GGGG -- two-way fork */
+ for (j = 13; j <= 15; j +=2)
+ expand_opcode ((val << 4) | j, i, s + 4);
+ break;
+ case 's':
+ /* ssss -- 10-way fork */
+ /* System registers mach, macl, pr: */
+ for (j = 0; j < 3; j++)
+ expand_opcode ((val << 4) | j, i, s + 4);
+ /* System registers fpul, fpscr/dsr, a0, x0, x1, y0, y1: */
+ for (j = 5; j < 12; j++)
+ expand_opcode ((val << 4) | j, i, s + 4);
+ break;
+ case 'X':
+ /* XX/XY -- 2/4 way fork. */
+ for (j = 0; j < 4; j += (s[1] == 'X' ? 2 : 1))
+ expand_opcode ((val << 2) | j, i, s + 2);
+ break;
+ case 'a':
+ /* aa/ax -- 2/4 way fork. */
+ for (j = 0; j < 4; j += (s[1] == 'a' ? 2 : 1))
+ expand_opcode ((val << 2) | j, i, s + 2);
+ break;
+ case 'Y':
+ /* YY/YX -- 2/4 way fork. */
+ for (j = 0; j < (s[1] == 'Y' ? 2 : 4); j += 1)
+ expand_opcode ((val << 2) | j, i, s + 2);
+ break;
+ case 'A':
+ /* AA/AY: 2/4 way fork. */
+ for (j = 0; j < (s[1] == 'A' ? 2 : 4); j += 1)
+ expand_opcode ((val << 2) | j, i, s + 2);
+ break;
+ case 'v':
+ /* vv(VV) -- 4(16) way fork. */
+ /* Vector register fv0/4/8/12. */
+ if (s[2] == 'V')
{
- expand_opcode (shift - 4, val | (j << shift), i, s + 4);
-
+ /* 2 vector registers. */
+ for (j = 0; j < 15; j++)
+ expand_opcode ((val << 4) | j, i, s + 4);
}
- break;
-
- default:
- for (j = 0; j < (1 << (shift + 4)); j++)
+ else
{
- table[val | j] = i;
+ /* 1 vector register. */
+ for (j = 0; j < 4; j += 1)
+ expand_opcode ((val << 2) | j, i, s + 2);
}
+ break;
}
}
}
/* Print the jump table used to index an opcode into a switch
- statement entry. */
+ statement entry. */
static void
-dumptable ()
+dumptable (name, size, start)
+ char *name;
+ int size;
+ int start;
{
int lump = 256;
int online = 16;
- int i = 0;
+ int i = start;
- while (i < 1 << 16)
+ printf ("unsigned short %s[%d]={\n", name, size);
+ while (i < start + size)
{
int j = 0;
- printf ("unsigned char sh_jump_table%x[%d]={\n", i, lump);
+ printf ("/* 0x%x */\n", i);
while (j < lump)
{
printf ("\n");
}
i += j;
- printf ("};\n");
}
-
+ printf ("};\n");
}
static void
-filltable ()
+filltable (p)
+ op *p;
{
- op *p;
- int index = 1;
+ static int index = 1;
sorttab ();
- for (p = tab; p->name; p++)
+ for (; p->name; p++)
{
p->index = index++;
- expand_opcode (12, 0, p->index, p->code);
+ expand_opcode (0, p->index, p->code);
}
}
+/* Table already contains all the switch case tags for 16-bit opcode double
+ data transfer (ddt) insns, and the switch case tag for processing parallel
+ processing insns (ppi) for code 0xf800 (ppi nopx nopy). Copy the
+ latter tag to represent all combinations of ppi with ddt. */
static void
-gensim ()
+expand_ppi_movxy ()
{
- op *p;
- int j;
+ int i;
- printf ("{\n");
- printf (" switch (jump_table[iword]) {\n");
+ for (i = 0xf000; i < 0xf400; i++)
+ if (table[i])
+ table[i + 0x800] = table[0xf800];
+}
- for (p = tab; p->name; p++)
+static void
+gensim_caselist (p)
+ op *p;
+{
+ for (; p->name; p++)
{
+ int j;
int sextbit = -1;
int needm = 0;
int needn = 0;
{
switch (*s)
{
+ default:
+ fprintf (stderr, "gencode/gensim_caselist: illegal char '%c'\n",
+ *s);
+ exit (1);
+ break;
+ case '?':
+ /* Wildcard expansion, nothing to do here. */
+ s += 2;
+ break;
+ case 'v':
+ printf (" int v1 = ((iword >> 10) & 3) * 4;\n");
+ s += 2;
+ break;
+ case 'V':
+ printf (" int v2 = ((iword >> 8) & 3) * 4;\n");
+ s += 2;
+ break;
case '0':
case '1':
+ s += 2;
+ break;
case '.':
s += 4;
break;
case 'n':
- printf (" int n = (iword >>8) & 0xf;\n");
+ case 'e':
+ printf (" int n = (iword >> 8) & 0xf;\n");
needn = 1;
s += 4;
break;
+ case 'N':
+ printf (" int n = (((iword >> 8) - 2) & 0x3) + 2;\n");
+ s += 2;
+ break;
+ case 'x':
+ if (s[1] == 'y') /* xy */
+ {
+ printf (" int n = (iword & 3) ? \n");
+ printf (" ((iword >> 9) & 1) + 4 : \n");
+ printf (" REG_xy ((iword >> 8) & 3);\n");
+ }
+ else
+ printf (" int n = ((iword >> 9) & 1) + 4;\n");
+ needn = 1;
+ s += 2;
+ break;
+ case 'y':
+ if (s[1] == 'x') /* yx */
+ {
+ printf (" int n = (iword & 0xc) ? \n");
+ printf (" ((iword >> 8) & 1) + 6 : \n");
+ printf (" REG_yx ((iword >> 8) & 3);\n");
+ }
+ else
+ printf (" int n = ((iword >> 8) & 1) + 6;\n");
+ needn = 1;
+ s += 2;
+ break;
case 'm':
- printf (" int m = (iword >>4) & 0xf;\n");
needm = 1;
+ case 's':
+ case 'M':
+ case 'G':
+ printf (" int m = (iword >> 4) & 0xf;\n");
s += 4;
-
+ break;
+ case 'X':
+ if (s[1] == 'Y') /* XY */
+ {
+ printf (" int m = (iword & 3) ? \n");
+ printf (" ((iword >> 7) & 1) + 8 : \n");
+ printf (" DSP_xy ((iword >> 6) & 3);\n");
+ }
+ else
+ printf (" int m = ((iword >> 7) & 1) + 8;\n");
+ s += 2;
+ break;
+ case 'a':
+ if (s[1] == 'x') /* ax */
+ {
+ printf (" int m = (iword & 3) ? \n");
+ printf (" 7 - ((iword >> 6) & 2) : \n");
+ printf (" DSP_ax ((iword >> 6) & 3);\n");
+ }
+ else
+ printf (" int m = 7 - ((iword >> 6) & 2);\n");
+ s += 2;
+ break;
+ case 'Y':
+ if (s[1] == 'X') /* YX */
+ {
+ printf (" int m = (iword & 0xc) ? \n");
+ printf (" ((iword >> 6) & 1) + 10 : \n");
+ printf (" DSP_yx ((iword >> 6) & 3);\n");
+ }
+ else
+ printf (" int m = ((iword >> 6) & 1) + 10;\n");
+ s += 2;
+ break;
+ case 'A':
+ if (s[1] == 'Y') /* AY */
+ {
+ printf (" int m = (iword & 0xc) ? \n");
+ printf (" 7 - ((iword >> 5) & 2) : \n");
+ printf (" DSP_ay ((iword >> 6) & 3);\n");
+ }
+ else
+ printf (" int m = 7 - ((iword >> 5) & 2);\n");
+ s += 2;
break;
case 'i':
switch (s[1])
{
+ default:
+ fprintf (stderr,
+ "gensim_caselist: Unknown char '%c' in %s\n",
+ s[1], s);
+ exit (1);
+ break;
case '4':
printf ("f");
break;
break;
case '1':
sextbit = 12;
-
printf ("fff");
break;
}
switch (s[3])
{
+ default:
+ fprintf (stderr,
+ "gensim_caselist: Unknown char '%c' in %s\n",
+ s[3], s);
+ exit (1);
+ break;
+ case '.': /* eg. "i12." */
+ break;
case '1':
break;
case '2':
- printf ("<<1");
+ printf (" << 1");
break;
case '4':
- printf ("<<2");
+ printf (" << 2");
break;
}
printf (";\n");
}
if (sextbit > 0)
{
- printf (" i = (i ^ (1<<%d))-(1<<%d);\n",
+ printf (" i = (i ^ (1 << %d)) - (1 << %d);\n",
sextbit - 1, sextbit - 1);
}
if (needm && needn)
- printf (" TB(m,n);\n");
+ printf (" TB (m,n);\n");
else if (needm)
- printf (" TL(m);\n");
+ printf (" TL (m);\n");
else if (needn)
- printf (" TL(n);\n");
+ printf (" TL (n);\n");
{
- /* Do the refs */
+ /* Do the refs. */
char *r;
for (r = p->refs; *r; r++)
{
- if (*r == '0') printf(" CREF(0);\n");
- if (*r == 'n') printf(" CREF(n);\n");
- if (*r == 'm') printf(" CREF(m);\n");
+ if (*r == 'f') printf (" CREF (15);\n");
+ if (*r == '-')
+ {
+ printf (" {\n");
+ printf (" int i = n;\n");
+ printf (" do {\n");
+ printf (" CREF (i);\n");
+ printf (" } while (i-- > 0);\n");
+ printf (" }\n");
+ }
+ if (*r == '+')
+ {
+ printf (" {\n");
+ printf (" int i = n;\n");
+ printf (" do {\n");
+ printf (" CREF (i);\n");
+ printf (" } while (i++ < 14);\n");
+ printf (" }\n");
+ }
+ if (*r == '0') printf (" CREF (0);\n");
+ if (*r == '8') printf (" CREF (8);\n");
+ if (*r == '9') printf (" CREF (9);\n");
+ if (*r == 'n') printf (" CREF (n);\n");
+ if (*r == 'm') printf (" CREF (m);\n");
}
}
printf (" }\n");
{
- /* Do the defs */
+ /* Do the defs. */
char *r;
for (r = p->defs; *r; r++)
{
- if (*r == '0') printf(" CDEF(0);\n");
- if (*r == 'n') printf(" CDEF(n);\n");
- if (*r == 'm') printf(" CDEF(m);\n");
+ if (*r == 'f') printf (" CDEF (15);\n");
+ if (*r == '-')
+ {
+ printf (" {\n");
+ printf (" int i = n;\n");
+ printf (" do {\n");
+ printf (" CDEF (i);\n");
+ printf (" } while (i-- > 0);\n");
+ printf (" }\n");
+ }
+ if (*r == '+')
+ {
+ printf (" {\n");
+ printf (" int i = n;\n");
+ printf (" do {\n");
+ printf (" CDEF (i);\n");
+ printf (" } while (i++ < 14);\n");
+ printf (" }\n");
+ }
+ if (*r == '0') printf (" CDEF (0);\n");
+ if (*r == 'n') printf (" CDEF (n);\n");
+ if (*r == 'm') printf (" CDEF (m);\n");
}
}
printf (" break;\n");
printf (" }\n");
}
+}
+
+static void
+gensim ()
+{
+ printf ("{\n");
+ printf ("/* REG_xy = [r4, r5, r0, r1]. */\n");
+ printf ("#define REG_xy(R) ((R)==0 ? 4 : (R)==2 ? 5 : (R)==1 ? 0 : 1)\n");
+ printf ("/* REG_yx = [r6, r7, r2, r3]. */\n");
+ printf ("#define REG_yx(R) ((R)==0 ? 6 : (R)==1 ? 7 : (R)==2 ? 2 : 3)\n");
+ printf ("/* DSP_ax = [a0, a1, x0, x1]. */\n");
+ printf ("#define DSP_ax(R) ((R)==0 ? 7 : (R)==2 ? 5 : (R)==1 ? 8 : 9)\n");
+ printf ("/* DSP_ay = [a0, a1, y0, y1]. */\n");
+ printf ("#define DSP_ay(R) ((R)==0 ? 7 : (R)==1 ? 5 : (R)==2 ? 10 : 11)\n");
+ printf ("/* DSP_xy = [x0, x1, y0, y1]. */\n");
+ printf ("#define DSP_xy(R) ((R)==0 ? 8 : (R)==2 ? 9 : (R)==1 ? 10 : 11)\n");
+ printf ("/* DSP_yx = [y0, y1, x0, x1]. */\n");
+ printf ("#define DSP_yx(R) ((R)==0 ? 10 : (R)==1 ? 11 : (R)==2 ? 8 : 9)\n");
+ printf (" switch (jump_table[iword]) {\n");
+
+ gensim_caselist (tab);
+ gensim_caselist (movsxy_tab);
+
printf (" default:\n");
printf (" {\n");
- printf (" saved_state.asregs.exception = SIGILL;\n");
+ printf (" RAISE_EXCEPTION (SIGILL);\n");
printf (" }\n");
printf (" }\n");
printf ("}\n");
}
-
static void
gendefines ()
{
op *p;
- filltable();
+ filltable (tab);
for (p = tab; p->name; p++)
{
char *s = p->name;
printf ("#define OPC_");
while (*s) {
- if (isupper(*s))
- *s = tolower(*s);
- if (isalpha(*s)) printf("%c", *s);
- if (*s == ' ') printf("_");
- if (*s == '@') printf("ind_");
- if (*s == ',') printf("_");
+ if (isupper (*s))
+ *s = tolower (*s);
+ if (isalpha (*s))
+ printf ("%c", *s);
+ if (*s == ' ')
+ printf ("_");
+ if (*s == '@')
+ printf ("ind_");
+ if (*s == ',')
+ printf ("_");
s++;
}
- printf(" %d\n",p->index);
+ printf (" %d\n",p->index);
+ }
+}
+
+static int ppi_index;
+
+/* Take a ppi code, expand all varying fields in it and fill all the
+ right entries in 'table' with the opcode index.
+ NOTE: tail recursion optimization removed for simplicity. */
+
+static void
+expand_ppi_code (val, i, s)
+ int val;
+ int i;
+ char *s;
+{
+ int j;
+
+ switch (s[0])
+ {
+ default:
+ fprintf (stderr, "gencode/expand_ppi_code: Illegal char '%c'\n", s[0]);
+ exit (2);
+ break;
+ case 'g':
+ case 'z':
+ if (warn_conflicts && table[val] != 0)
+ conflict_warn (val, i);
+
+ /* The last four bits are disregarded for the switch table. */
+ table[val] = i;
+ return;
+ case 'm':
+ /* Four-bit expansion. */
+ for (j = 0; j < 16; j++)
+ expand_ppi_code ((val << 4) + j, i, s + 4);
+ break;
+ case '.':
+ case '0':
+ expand_ppi_code ((val << 1), i, s + 1);
+ break;
+ case '1':
+ expand_ppi_code ((val << 1) + 1, i, s + 1);
+ break;
+ case 'i':
+ case 'e': case 'f':
+ case 'x': case 'y':
+ expand_ppi_code ((val << 1), i, s + 1);
+ expand_ppi_code ((val << 1) + 1, i, s + 1);
+ break;
+ case 'c':
+ expand_ppi_code ((val << 2) + 1, ppi_index++, s + 2);
+ expand_ppi_code ((val << 2) + 2, i, s + 2);
+ expand_ppi_code ((val << 2) + 3, i, s + 2);
+ break;
+ }
+}
+
+static void
+ppi_filltable ()
+{
+ op *p;
+ ppi_index = 1;
+
+ for (p = ppi_tab; p->name; p++)
+ {
+ p->index = ppi_index++;
+ expand_ppi_code (0, p->index, p->code);
+ }
+}
+
+static void
+ppi_gensim ()
+{
+ op *p = ppi_tab;
+
+ printf ("#define DSR_MASK_G 0x80\n");
+ printf ("#define DSR_MASK_Z 0x40\n");
+ printf ("#define DSR_MASK_N 0x20\n");
+ printf ("#define DSR_MASK_V 0x10\n");
+ printf ("\n");
+ printf ("#define COMPUTE_OVERFLOW do {\\\n");
+ printf (" overflow = res_grd != SIGN32 (res) ? DSR_MASK_V : 0; \\\n");
+ printf (" if (overflow && S) \\\n");
+ printf (" { \\\n");
+ printf (" if (res_grd & 0x80) \\\n");
+ printf (" { \\\n");
+ printf (" res = 0x80000000; \\\n");
+ printf (" res_grd |= 0xff; \\\n");
+ printf (" } \\\n");
+ printf (" else \\\n");
+ printf (" { \\\n");
+ printf (" res = 0x7fffffff; \\\n");
+ printf (" res_grd &= ~0xff; \\\n");
+ printf (" } \\\n");
+ printf (" overflow = 0; \\\n");
+ printf (" } \\\n");
+ printf ("} while (0)\n");
+ printf ("\n");
+ printf ("#define ADD_SUB_GE \\\n");
+ printf (" (greater_equal = ~(overflow << 3 & res_grd) & DSR_MASK_G)\n");
+ printf ("\n");
+ printf ("static void\n");
+ printf ("ppi_insn (iword)\n");
+ printf (" int iword;\n");
+ printf ("{\n");
+ printf (" /* 'ee' = [x0, x1, y0, a1] */\n");
+ printf (" static char e_tab[] = { 8, 9, 10, 5};\n");
+ printf (" /* 'ff' = [y0, y1, x0, a1] */\n");
+ printf (" static char f_tab[] = {10, 11, 8, 5};\n");
+ printf (" /* 'xx' = [x0, x1, a0, a1] */\n");
+ printf (" static char x_tab[] = { 8, 9, 7, 5};\n");
+ printf (" /* 'yy' = [y0, y1, m0, m1] */\n");
+ printf (" static char y_tab[] = {10, 11, 12, 14};\n");
+ printf (" /* 'gg' = [m0, m1, a0, a1] */\n");
+ printf (" static char g_tab[] = {12, 14, 7, 5};\n");
+ printf (" /* 'uu' = [x0, y0, a0, a1] */\n");
+ printf (" static char u_tab[] = { 8, 10, 7, 5};\n");
+ printf ("\n");
+ printf (" int z;\n");
+ printf (" int res, res_grd;\n");
+ printf (" int carry, overflow, greater_equal;\n");
+ printf ("\n");
+ printf (" switch (ppi_table[iword >> 4]) {\n");
+
+ for (; p->name; p++)
+ {
+ int shift, j;
+ int cond = 0;
+ int havedecl = 0;
+
+ char *s = p->code;
+
+ printf (" /* %s %s */\n", p->name, p->code);
+ printf (" case %d: \n", p->index);
+
+ printf (" {\n");
+ for (shift = 16; *s; )
+ {
+ switch (*s)
+ {
+ case 'i':
+ printf (" int i = (iword >> 4) & 0x7f;\n");
+ s += 6;
+ break;
+ case 'e':
+ case 'f':
+ case 'x':
+ case 'y':
+ case 'g':
+ case 'u':
+ shift -= 2;
+ printf (" int %c = %c_tab[(iword >> %d) & 3];\n",
+ *s, *s, shift);
+ havedecl = 1;
+ s += 2;
+ break;
+ case 'c':
+ printf (" if ((((iword >> 8) ^ DSR) & 1) == 0)\n");
+ printf ("\treturn;\n");
+ printf (" }\n");
+ printf (" case %d: \n", p->index + 1);
+ printf (" {\n");
+ cond = 1;
+ case '0':
+ case '1':
+ case '.':
+ shift -= 2;
+ s += 2;
+ break;
+ case 'z':
+ if (havedecl)
+ printf ("\n");
+ printf (" z = iword & 0xf;\n");
+ havedecl = 2;
+ s += 4;
+ break;
+ }
+ }
+ if (havedecl == 1)
+ printf ("\n");
+ else if (havedecl == 2)
+ printf (" {\n");
+ for (j = 0; j < MAX_NR_STUFF; j++)
+ {
+ if (p->stuff[j])
+ {
+ printf (" %s%s\n",
+ (havedecl == 2 ? " " : ""),
+ p->stuff[j]);
+ }
+ }
+ if (havedecl == 2)
+ printf (" }\n");
+ if (cond)
+ {
+ printf (" if (iword & 0x200)\n");
+ printf (" goto assign_z;\n");
+ }
+ printf (" break;\n");
+ printf (" }\n");
}
+
+ printf (" default:\n");
+ printf (" {\n");
+ printf (" RAISE_EXCEPTION (SIGILL);\n");
+ printf (" return;\n");
+ printf (" }\n");
+ printf (" }\n");
+ printf (" DSR &= ~0xf1;\n");
+ printf (" if (res || res_grd)\n");
+ printf (" DSR |= greater_equal | res_grd >> 2 & DSR_MASK_N | overflow;\n");
+ printf (" else\n");
+ printf (" DSR |= DSR_MASK_Z | overflow;\n");
+ printf (" assign_dc:\n");
+ printf (" switch (DSR >> 1 & 7)\n");
+ printf (" {\n");
+ printf (" case 0: /* Carry Mode */\n");
+ printf (" DSR |= carry;\n");
+ printf (" case 1: /* Negative Value Mode */\n");
+ printf (" DSR |= res_grd >> 7 & 1;\n");
+ printf (" case 2: /* Zero Value Mode */\n");
+ printf (" DSR |= DSR >> 6 & 1;\n");
+ printf (" case 3: /* Overflow mode\n");
+ printf (" DSR |= overflow >> 4;\n");
+ printf (" case 4: /* Signed Greater Than Mode */\n");
+ printf (" DSR |= DSR >> 7 & 1;\n");
+ printf (" case 4: /* Signed Greater Than Or Equal Mode */\n");
+ printf (" DSR |= greater_equal >> 7;\n");
+ printf (" }\n");
+ printf (" assign_z:\n");
+ printf (" if (0xa05f >> z & 1)\n");
+ printf (" {\n");
+ printf (" RAISE_EXCEPTION (SIGILL);\n");
+ printf (" return;\n");
+ printf (" }\n");
+ printf (" DSP_R (z) = res;\n");
+ printf (" DSP_GRD (z) = res_grd;\n");
+ printf ("}\n");
}
int
int ac;
char **av;
{
- /* verify the table before anything else */
+ /* Verify the table before anything else. */
{
op *p;
for (p = tab; p->name; p++)
{
- /* check that the code field contains 16 bits */
+ /* Check that the code field contains 16 bits. */
if (strlen (p->code) != 16)
{
fprintf (stderr, "Code `%s' length wrong (%d) for `%s'\n",
}
}
- /* now generate the requested data */
+ /* Now generate the requested data. */
if (ac > 1)
{
+ if (ac > 2 && strcmp (av[2], "-w") == 0)
+ {
+ warn_conflicts = 1;
+ }
if (strcmp (av[1], "-t") == 0)
{
gengastab ();
}
else if (strcmp (av[1], "-s") == 0)
{
- filltable ();
- dumptable ();
+ filltable (tab);
+ dumptable ("sh_jump_table", 1 << 16, 0);
+ memset (table, 0, sizeof table);
+ filltable (movsxy_tab);
+ expand_ppi_movxy ();
+ dumptable ("sh_dsp_table", 1 << 12, 0xf000);
+
+ memset (table, 0, sizeof table);
+ ppi_filltable ();
+ dumptable ("ppi_table", 1 << 12, 0);
}
else if (strcmp (av[1], "-x") == 0)
{
- filltable ();
+ filltable (tab);
+ filltable (movsxy_tab);
gensim ();
}
+ else if (strcmp (av[1], "-p") == 0)
+ {
+ ppi_filltable ();
+ ppi_gensim ();
+ }
}
else
- {
- genopc ();
- }
+ fprintf (stderr, "Opcode table generation no longer supported.\n");
return 0;
}
projects / thirdparty / binutils-gdb.git / blobdiff