+ case 0x14: /* mul.x */
+ {
+ int a = (inst >> 4) & 0xf;
+ int b = inst & 0xf;
+ unsigned av = cpu.asregs.regs[a];
+ unsigned bv = cpu.asregs.regs[b];
+ TRACE("mul.x");
+ signed long long r =
+ (signed long long) av * (signed long long) bv;
+ cpu.asregs.regs[a] = r >> 32;
+ }
+ break;
+ case 0x15: /* umul.x */
+ {
+ int a = (inst >> 4) & 0xf;
+ int b = inst & 0xf;
+ unsigned av = cpu.asregs.regs[a];
+ unsigned bv = cpu.asregs.regs[b];
+ TRACE("umul.x");
+ unsigned long long r =
+ (unsigned long long) av * (unsigned long long) bv;
+ cpu.asregs.regs[a] = r >> 32;
+ }
+ break;