claunia/86Box
1
0
Fork 0
Code Issues Pull Requests Actions 3 Packages Projects Releases Wiki Activity

Fixed SMM, overhauled the emulation of the VIA northbridges, and added the Via Apollo VP3.

Browse Source
This commit is contained in:
OBattler
2020-04-01 08:59:29 +02:00
parent 2c8bcea38c
commit b8b198a56a
37 changed files with 1915 additions and 5024 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
src/cpu_common/386.c
View File

@@ -234,6 +234,10 @@ exec386(int cycs)
fetchdat = fastreadl(cs + cpu_state.pc);
if (!cpu_state.abrt) {
#ifdef ENABLE_386_LOG
if (in_smm)
x386_log("[%04X:%08X] %08X\n", CS, cpu_state.pc, fetchdat);
#endif
opcode = fetchdat & 0xFF;
fetchdat >>= 8;
trap = cpu_state.flags & T_FLAG;
@@ -242,7 +246,11 @@ exec386(int cycs)
x86_opcodes[(opcode | cpu_state.op32) & 0x3ff](fetchdat);
if (x86_was_reset)
break;
}
} else
#ifdef ENABLE_386_LOG
if (in_smm)
x386_log("[%04X:%08X] ABRT\n", CS, cpu_state.pc);
#endif
#ifndef USE_NEW_DYNAREC
if (!use32) cpu_state.pc &= 0xffff;
@@ -272,12 +280,25 @@ exec386(int cycs)
}
}
if (!in_smm && smi_line/* && is_pentium*/) {
if ((in_smm == 0) && smi_line) {
#ifdef ENABLE_386_LOG
x386_log("SMI while not in SMM\n");
#endif
enter_smm();
smi_line = 0;
} else if (in_smm && smi_line/* && is_pentium*/) {
} else if ((in_smm == 1) && smi_line) {
/* Mark this so that we don't latch more than one SMI. */
#ifdef ENABLE_386_LOG
x386_log("SMI while in unlatched SMM\n");
#endif
smi_latched = 1;
smi_line = 0;
} else if ((in_smm == 2) && smi_line) {
/* Mark this so that we don't latch more than one SMI. */
#ifdef ENABLE_386_LOG
x386_log("SMI while in latched SMM\n");
#endif
smi_line = 0;
}
ins_cycles -= cycles;