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add shld/shrd opcodes

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fix pmode segment sets


Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1538
This commit is contained in:
Sjoerd van der Berg 2004-01-06 20:47:42 +00:00
parent 7522924640
commit d17fccc9b9
1 changed files with 8 additions and 2 deletions
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10
src/cpu/core_dyn_x86/decoder.h
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@ -570,8 +570,8 @@ static void dyn_load_seg(SegNames seg,DynReg * src,bool withpop) {
if (cpu.pmode) {
Bit8u * branch;DynState state;
gen_storeflags();
gen_call_function((void *)&CPU_SetSegGeneral,"%Rd%Id%Drw",DREG(TMPW),seg,src);
gen_dop_word(DOP_OR,true,DREG(TMPW),DREG(TMPW));
gen_call_function((void *)&CPU_SetSegGeneral,"%Rd%Id%Drw",DREG(TMPB),seg,src);
gen_dop_byte(DOP_OR,DREG(TMPB),0,DREG(TMPB),0);
branch=gen_create_branch(BR_Z);
dyn_savestate(&state);
dyn_reduce_cycles();
@ -893,6 +893,12 @@ restart_prefix:
dyn_branched_exit((BranchTypes)(dual_code&0xf),
decode.big_op ? (Bit32s)decode_fetchd() : (Bit16s)decode_fetchw());
return decode.block;
/* SHLD Imm/cl*/
case 0xa4:dyn_dshift_ev_gv(true,true);break;
case 0xa5:dyn_dshift_ev_gv(true,false);break;
/* SHRD Imm/cl*/
case 0xac:dyn_dshift_ev_gv(false,true);break;
case 0xad:dyn_dshift_ev_gv(false,false);break;
default:
DYN_LOG("Unhandled dual opcode 0F%02X",dual_code);
goto illegalopcode;