From f0883cd465445e9ab07f2e1d33515eda1635fa38 Mon Sep 17 00:00:00 2001 From: ptitSeb Date: Fri, 5 Mar 2021 12:26:32 +0100 Subject: Added REX 99 cd/cqo opcode --- src/emu/x64run.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'src') diff --git a/src/emu/x64run.c b/src/emu/x64run.c index d7250aad..6889f353 100755 --- a/src/emu/x64run.c +++ b/src/emu/x64run.c @@ -328,10 +328,16 @@ x64emurun: case 0x98: /* CWDE */ if(rex.w) - emu->regs[_AX].q[0] = emu->regs[_AX].sdword[0]; + emu->regs[_AX].sq[0] = emu->regs[_AX].sdword[0]; else emu->regs[_AX].sdword[0] = emu->regs[_AX].sword[0]; break; + case 0x99: /* CDQ */ + if(rex.w) + R_RDX=(R_RAX & 0x8000000000000000L)?0xFFFFFFFFFFFFFFFFL:0x0000000000000000L; + else + R_RDX=(R_EAX & 0x80000000)?0xFFFFFFFFFFFFFFFFL:0x0000000000000000L; + break; case 0xB8: /* MOV EAX,Id */ case 0xB9: /* MOV ECX,Id */ -- cgit 1.4.1