Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-22 08:22:15 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

i86: Fixed old regression with NEG opcode flags. [dink/fbneo]

Browse Source
This commit is contained in:
hap 2020-06-25 10:08:23 +02:00
parent f30c2f6eec
commit 7664bed4b7
1 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/devices/cpu/i86/i86.cpp
View File

@ -2266,10 +2266,10 @@ bool i8086_common_cpu_device::common_op(uint8_t op)
CLKM(NEGNOT_R8,NEGNOT_M8);
break;
case 0x18: /* NEG */
m_CarryVal = (tmp!=0) ? 1 : 0;
tmp = (~tmp)+1;
set_SZPF_Byte(tmp);
PutbackRMByte(tmp&0xff);
m_dst = 0;
m_src = tmp;
SUBB();
PutbackRMByte(m_dst);
CLKM(NEGNOT_R8,NEGNOT_M8);
break;
case 0x20: /* MUL */
@ -2356,10 +2356,10 @@ bool i8086_common_cpu_device::common_op(uint8_t op)
CLKM(NEGNOT_R16,NEGNOT_M16);
break;
case 0x18: /* NEG */
m_CarryVal = (tmp!=0) ? 1 : 0;
tmp = (~tmp) + 1;
set_SZPF_Word(tmp);
PutbackRMWord(tmp);
m_dst = 0;
m_src = tmp;
SUBX();
PutbackRMWord(m_dst);
CLKM(NEGNOT_R16,NEGNOT_M16);
break;
case 0x20: /* MUL */