claunia/86Box
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ACPI, SMM, and PIIX fixes, fixes quite a few boards, also fixed the Via Apollo series northbridge ID's, some CPU instructions on both 808x and 286+, and added SMM to 486's (Intel and AMD), WinChip and WinChip 2, and VIA Cyrix III, also removed the TC430HX and the Toshiba machine from the Dev branch.

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This commit is contained in:
OBattler
2020-04-16 21:56:19 +02:00
parent 08f52c5a29
commit 275dd5a2f7
36 changed files with 862 additions and 429 deletions
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73
src/cpu_common/808x.c
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@@ -899,6 +899,10 @@ makeznptable(void)
static void
reset_common(int hard)
{
/* Make sure to gracefully leave SMM. */
if (in_smm)
leave_smm();
biu_cycles = 0;
in_rep = 0;
in_lock = 0;
@@ -1681,14 +1685,6 @@ stos(int bits)
}
static void
da(void)
{
set_pzs(8);
wait(2, 0);
}
static void
aa(void)
{
@@ -1875,58 +1871,81 @@ execx86(int cycs)
break;
case 0x27: /*DAA*/
wait(1, 0);
cpu_dest = AL;
set_of(0);
temp = !!(cpu_state.flags & A_FLAG);
if ((cpu_state.flags & A_FLAG) || (AL & 0x0f) > 9) {
cpu_data = AL + 6;
AL = (uint8_t) cpu_data;
cpu_src = 6;
cpu_data = cpu_dest + cpu_src;
set_of_add(8);
cpu_dest = cpu_data;
set_af(1);
if ((cpu_data & 0x100) != 0)
set_cf(1);
}
if ((cpu_state.flags & C_FLAG) || AL > 0x9f) {
AL += 0x60;
if ((cpu_state.flags & C_FLAG) || AL > (temp ? 0x9f : 0x99)) {
cpu_src = 0x60;
cpu_data = cpu_dest + cpu_src;
set_of_add(8);
cpu_dest = cpu_data;
set_cf(1);
}
da();
AL = cpu_dest;
set_pzs(8);
wait(3, 0);
break;
case 0x2F: /*DAS*/
wait(1, 0);
temp = AL;
cpu_dest = AL;
set_of(0);
temp = !!(cpu_state.flags & A_FLAG);
if ((cpu_state.flags & A_FLAG) || ((AL & 0xf) > 9)) {
cpu_data = AL - 6;
AL = (uint8_t) cpu_data;
cpu_src = 6;
cpu_data = cpu_dest + cpu_src;
set_of_sub(8);
cpu_dest = cpu_data;
set_af(1);
if ((cpu_data & 0x100) != 0)
set_cf(1);
}
if ((cpu_state.flags & C_FLAG) || temp > 0x9f) {
AL -= 0x60;
if ((cpu_state.flags & C_FLAG) || AL > (temp ? 0x9f : 0x99)) {
cpu_src = 0x60;
cpu_data = cpu_dest - cpu_src;
set_of_sub(8);
cpu_dest = cpu_data;
set_cf(1);
}
da();
AL = cpu_dest;
set_pzs(8);
wait(3, 0);
break;
case 0x37: /*AAA*/
wait(1, 0);
if ((cpu_state.flags & A_FLAG) || ((AL & 0xf) > 9)) {
AL += 6;
cpu_src = 6;
++AH;
set_ca();
} else {
cpu_src = 0;
clear_ca();
wait(1, 0);
}
cpu_dest = AL;
cpu_data = cpu_dest + cpu_src;
AL = cpu_data;
set_of_add(8);
aa();
break;
case 0x3F: /*AAS*/
wait(1, 0);
if ((cpu_state.flags & A_FLAG) || ((AL & 0xf) > 9)) {
AL -= 6;
cpu_src = 6;
--AH;
set_ca();
} else {
cpu_src = 0;
clear_ca();
wait(1, 0);
}
cpu_dest = AL;
cpu_data = cpu_dest - cpu_src;
AL = cpu_data;
set_of_sub(8);
aa();
break;