import gdb-1999-09-08 snapshot

[thirdparty/binutils-gdb.git] / sim / mips / mips.igen

diff --git a/sim/mips/mips.igen b/sim/mips/mips.igen
index bfc209ab3dc6a54ae9c538f684168551d38c7187..17748febcfc40a0c266b05c60efa6faaa7ea49c2 100644 (file)
--- a/sim/mips/mips.igen
+++ b/sim/mips/mips.igen
@@ -76,6 +76,7 @@
   CIA = CIA + 4; /* NOTE not mips16 */
   STATE |= simDELAYSLOT;
   delay_insn = IMEM32 (CIA); /* NOTE not mips16 */
+  ENGINE_ISSUE_PREFIX_HOOK();
   idecode_issue (CPU_, delay_insn, (CIA));
   STATE &= ~simDELAYSLOT;
   return target;
@@ -1551,7 +1552,7 @@
 *vr5000:
 *r3900:
 {
-  GPR[RT] = EXTEND32 (do_load_left (SD_, AccessLength_WORD, GPR[BASE], EXTEND32 (OFFSET), GPR[RT]));
+  GPR[RT] = EXTEND32 (do_load_left (SD_, AccessLength_WORD, GPR[BASE], EXTEND16 (OFFSET), GPR[RT]));
 }
 
 
@@ -1720,6 +1721,7 @@
 
 
 000000,5.RS,5.RT,5.RD,00000011000:SPECIAL:32::MULT
+"mult r<RS>, r<RT>":RD == 0
 "mult r<RD>, r<RS>, r<RT>"
 *vr5000:
 *r3900:
@@ -1747,10 +1749,11 @@
 *mipsI,mipsII,mipsIII,mipsIV:
 *vr4100:
 {
-  do_multu (SD_, RS, RT, 0);
+  do_multu (SD_, RS, RT, RD);
 }
 
 000000,5.RS,5.RT,5.RD,00000011001:SPECIAL:32::MULTU
+"multu r<RS>, r<RT>":RD == 0
 "multu r<RD>, r<RS>, r<RT>"
 *vr5000:
 *r3900:
@@ -3738,6 +3741,14 @@
 *vr4100:
 *vr5000:
 
+010000,01000,00000,16.OFFSET:COP0:32::BC0F
+"bc0f <OFFSET>"
+// stub needed for eCos as tx39 hardware bug workaround
+*r3900:
+{
+  /* do nothing */
+}
+
 
 010000,01000,00010,16.OFFSET:COP0:32::BC0FL
 "bc0fl <OFFSET>"
@@ -3787,6 +3798,22 @@
 *vr5000:
 
 
+010000,00001,5.RT,5.RD,000,0000,0000:COP0:64::DMFC0
+"dmfc0 r<RT>, r<RD>"
+*mipsIII,mipsIV:
+{
+  DecodeCoproc (instruction_0);
+}
+
+
+010000,00101,5.RT,5.RD,000,0000,0000:COP0:64::DMTC0
+"dmtc0 r<RT>, r<RD>"
+*mipsIII,mipsIV:
+{
+  DecodeCoproc (instruction_0);
+}
+
+
 010000,10000,000000000000000,111000:COP0:32::EI
 "ei"
 *mipsI,mipsII,mipsIII,mipsIV: