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

stat -> status; improve MDA register decoding; add MDA CRTC, register and mode enums

Browse Source
This commit is contained in:
starfrost013
2025-06-11 17:37:15 +01:00
parent dd6f7746a9
commit 317a5b7ade
16 changed files with 220 additions and 147 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
src/video/vid_ega.c
View File

@@ -505,7 +505,7 @@ ega_in(uint16_t addr, void *priv)
case 0x3da:
ega->attrff = 0;
if (type == EGA_TYPE_COMPAQ) {
ret = ega->stat & 0xcf;
ret = ega->status & 0xcf;
switch ((ega->attrregs[0x12] >> 4) & 0x03) {
case 0x00:
/* 00 = Pri. Red (5), Pri. Blue (4) */
@@ -526,8 +526,8 @@ ega_in(uint16_t addr, void *priv)
break;
}
} else {
ega->stat ^= 0x30; /* Fools IBM EGA video BIOS self-test. */
ret = ega->stat;
ega->status ^= 0x30; /* Fools IBM EGA video BIOS self-test. */
ret = ega->status;
}
break;
case 0x7c6:
@@ -837,7 +837,7 @@ ega_poll(void *priv)
if (!ega->linepos) {
timer_advance_u64(&ega->timer, ega->dispofftime);
ega->stat |= 1;
ega->status |= 1;
ega->linepos = 1;
if (ega->dispon) {
@@ -877,8 +877,8 @@ ega_poll(void *priv)
ega->displine++;
if (ega->interlace)
ega->displine++;
if ((ega->stat & 8) && ((ega->displine & 15) == (ega->crtc[0x11] & 15)) && ega->vslines)
ega->stat &= ~8;
if ((ega->status & 8) && ((ega->displine & 15) == (ega->crtc[0x11] & 15)) && ega->vslines)
ega->status &= ~8;
ega->vslines++;
if (ega->chipset) {
if (ega->hdisp >= 800) {
@@ -896,7 +896,7 @@ ega_poll(void *priv)
timer_advance_u64(&ega->timer, ega->dispontime);
if (ega->dispon)
ega->stat &= ~1;
ega->status &= ~1;
ega->hdisp_on = 0;
ega->linepos = 0;
@@ -968,7 +968,7 @@ ega_poll(void *priv)
}
if (ega->vc == ega->vsyncstart) {
ega->dispon = 0;
ega->stat |= 8;
ega->status |= 8;
#if 0
picint(1 << 2);
#endif