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Enabled write to CRTC R7 bit 4 when protection is enabled - fixes scrolling on DOS/V 6.2.

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This commit is contained in:
TomW 2014-11-04 20:14:50 +00:00
commit 6a72839c59
13 changed files with 51 additions and 14 deletions
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5
src/vid_ati18800.c
View file

@ -60,7 +60,10 @@ void ati18800_out(uint16_t addr, uint8_t val, void *p)
svga->crtcreg = val & 0x3f;
return;
case 0x3D5:
if (svga->crtcreg <= 7 && svga->crtc[0x11] & 0x80) return;
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;
if (old != val)

5
src/vid_ati28800.c
View file

@ -62,7 +62,10 @@ void ati28800_out(uint16_t addr, uint8_t val, void *p)
svga->crtcreg = val & 0x3f;
return;
case 0x3D5:
if (svga->crtcreg <= 7 && svga->crtc[0x11] & 0x80) return;
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;
if (old != val)

5
src/vid_ati_mach64.c
View file

@ -245,7 +245,10 @@ void mach64_out(uint16_t addr, uint8_t val, void *p)
svga->crtcreg = val & 0x1f;
return;
case 0x3D5:
if (svga->crtcreg <= 7 && svga->crtc[0x11] & 0x80) return;
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
if (svga->crtcreg > 0x18)
return;
old = svga->crtc[svga->crtcreg];

5
src/vid_cl5429.c
View file

@ -141,7 +141,10 @@ void gd5429_out(uint16_t addr, uint8_t val, void *p)
svga->crtcreg = val & 0x3f;
return;
case 0x3D5:
if (svga->crtcreg <= 7 && svga->crtc[0x11] & 0x80) return;
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;

5
src/vid_et4000.c
View file

@ -61,7 +61,10 @@ void et4000_out(uint16_t addr, uint8_t val, void *p)
svga->crtcreg = val & 0x3f;
return;
case 0x3D5:
if (svga->crtcreg <= 7 && svga->crtc[0x11] & 0x80) return;
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
val &= crtc_mask[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;

5
src/vid_et4000w32.c
View file

@ -127,7 +127,10 @@ void et4000w32p_out(uint16_t addr, uint8_t val, void *p)
return;
case 0x3D5:
// pclog("Write CRTC R%02X %02X\n", crtcreg, val);
if (svga->crtcreg <= 7 && svga->crtc[0x11] & 0x80) return;
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;
if (old != val)

5
src/vid_oti067.c
View file

@ -38,7 +38,10 @@ void oti067_out(uint16_t addr, uint8_t val, void *p)
svga->crtcreg = val & 31;
return;
case 0x3D5:
if (svga->crtcreg <= 7 && svga->crtc[0x11] & 0x80) return;
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;
if (old != val)

6
src/vid_paradise.c
View file

@ -114,8 +114,10 @@ void paradise_out(uint16_t addr, uint8_t val, void *p)
svga->crtcreg = val & 0x3f;
return;
case 0x3D5:
if (svga->crtcreg <= 7 && svga->crtc[0x11] & 0x80)
return;
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
if (svga->crtcreg > 0x29 && (svga->crtc[0x29] & 7) != 5)
return;
if (svga->crtcreg >= 0x31 && svga->crtcreg <= 0x37)

5
src/vid_s3.c
View file

@ -141,7 +141,10 @@ void s3_out(uint16_t addr, uint8_t val, void *p)
svga->crtcreg = val & 0x7f;
return;
case 0x3D5:
if (svga->crtcreg <= 7 && svga->crtc[0x11] & 0x80) return;
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
if (svga->crtcreg >= 0x20 && svga->crtcreg != 0x38 && (svga->crtc[0x38] & 0xcc) != 0x48) return;
old = svga->crtc[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;

4
src/vid_s3_virge.c
View file

@ -277,8 +277,10 @@ static void s3_virge_out(uint16_t addr, uint8_t val, void *p)
return;
case 0x3d5:
//pclog("Write CRTC R%02X %02X %04x(%08x):%08x\n", svga->crtcreg, val, CS, cs, pc);
if (svga->crtcreg <= 7 && svga->crtc[0x11] & 0x80)
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
if (svga->crtcreg >= 0x20 && svga->crtcreg != 0x38 && (svga->crtc[0x38] & 0xcc) != 0x48)
return;
if (svga->crtcreg >= 0x80)

5
src/vid_tgui9440.c
View file

@ -161,7 +161,10 @@ void tgui_out(uint16_t addr, uint8_t val, void *p)
svga->crtcreg = val & 0x7f;
return;
case 0x3D5:
if (svga->crtcreg <= 7 && svga->crtc[0x11] & 0x80) return;
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;
// if (svga->crtcreg != 0xE && svga->crtcreg != 0xF) pclog("CRTC R%02X = %02X\n", svga->crtcreg, val);

5
src/vid_tvga.c
View file

@ -110,7 +110,10 @@ void tvga_out(uint16_t addr, uint8_t val, void *p)
svga->crtcreg = val & 0x3f;
return;
case 0x3D5:
if (svga->crtcreg <= 7 && svga->crtc[0x11] & 0x80) return;
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
val &= crtc_mask[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;

5
src/vid_vga.c
View file

@ -33,7 +33,10 @@ void vga_out(uint16_t addr, uint8_t val, void *p)
svga->crtcreg = val & 0x1f;
return;
case 0x3D5:
if (svga->crtcreg <= 7 && svga->crtc[0x11] & 0x80) return;
if ((svga->crtcreg < 7) && (svga->crtc[0x11] & 0x80))
return;
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;
if (old != val)