| Message ID | 1439151229-27747-20-git-send-email-laurent@vivier.eu |
|---|---|
| State | New |
| Headers | show |
On 08/09/2015 01:13 PM, Laurent Vivier wrote: > Signed-off-by: Laurent Vivier <laurent@vivier.eu> > --- > target-m68k/translate.c | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) > > diff --git a/target-m68k/translate.c b/target-m68k/translate.c > index ae57792..adf4521 100644 > --- a/target-m68k/translate.c > +++ b/target-m68k/translate.c > @@ -2002,6 +2002,24 @@ DISAS_INSN(eor) > > opsize = insn_opsize(insn, 6); > > + if (((insn >> 3) & 7) == 1) { > + /* cmpm */ Surely this can be separated out from EOR via masks at register_opcode time. And since this isn't a coldfire instruction... > + reg = AREG(insn, 0); > + src = gen_load(s, opsize, reg, 1); > + tcg_gen_addi_i32(reg, reg, opsize_bytes(opsize)); > + > + reg = AREG(insn, 9); > + dest = gen_load(s, opsize, reg, 1); > + tcg_gen_addi_i32(reg, reg, opsize_bytes(opsize)); > + > + reg = tcg_temp_new(); > + tcg_gen_sub_i32(reg, dest, src); > + gen_update_cc_add(reg, src); No need for the extra temp, reg. Simply modify dest. > + SET_CC_OP(opsize, SUB); > + > + return; > + } > + > SRC_EA(env, src, opsize, -1, &addr); > reg = DREG(insn, 9); > dest = tcg_temp_new(); >
diff --git a/target-m68k/translate.c b/target-m68k/translate.c index ae57792..adf4521 100644 --- a/target-m68k/translate.c +++ b/target-m68k/translate.c @@ -2002,6 +2002,24 @@ DISAS_INSN(eor) opsize = insn_opsize(insn, 6); + if (((insn >> 3) & 7) == 1) { + /* cmpm */ + reg = AREG(insn, 0); + src = gen_load(s, opsize, reg, 1); + tcg_gen_addi_i32(reg, reg, opsize_bytes(opsize)); + + reg = AREG(insn, 9); + dest = gen_load(s, opsize, reg, 1); + tcg_gen_addi_i32(reg, reg, opsize_bytes(opsize)); + + reg = tcg_temp_new(); + tcg_gen_sub_i32(reg, dest, src); + gen_update_cc_add(reg, src); + SET_CC_OP(opsize, SUB); + + return; + } + SRC_EA(env, src, opsize, -1, &addr); reg = DREG(insn, 9); dest = tcg_temp_new();
Signed-off-by: Laurent Vivier <laurent@vivier.eu> --- target-m68k/translate.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)