claunia/86Box
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UMC HB4 shadow RAM overhaul and SMRAM fixes, slight changes to SiS 85c4xx, a fix for SiS 85c50x, fixed SMBASE on 486 (it should *NOT* zero the most significant 8 bits!), various improvements to mem.c (eg. mem_invalidate_range() is now faster), fixed resetting PCI on soft reset, and made the KBC soft reset again.

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This commit is contained in:
OBattler
2021-09-25 15:30:06 +02:00
parent b5f7e9bec3
commit 5ad606a8f2
8 changed files with 304 additions and 252 deletions
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2
src/cpu/386_common.c
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@@ -591,7 +591,7 @@ smram_restore_state_p5(uint32_t *saved_state)
smm_seg_load(&cpu_state.seg_gs);
if (SMM_REVISION_ID & SMM_SMBASE_RELOCATION)
smbase = saved_state[SMRAM_FIELD_P5_SMBASE_OFFSET] & 0x00ffffff;
smbase = saved_state[SMRAM_FIELD_P5_SMBASE_OFFSET];
/* Am486/5x86 stuff */
if (!is_pentium) {

7
src/cpu/x86.c
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@@ -241,8 +241,13 @@ reset_common(int hard)
leave_smm();
/* Needed for the ALi M1533. */
if (is486 && (hard || soft_reset_pci))
if (is486 && (hard || soft_reset_pci)) {
pci_reset();
if (!hard && soft_reset_pci) {
dma_reset();
device_reset_all();
}
}
use32 = 0;
cpu_cur_status = 0;