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Add tandy palette changing registers

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1638
This commit is contained in:
Sjoerd van der Berg 2004-02-02 09:26:13 +00:00
parent 79dfccf120
commit 3c2770a8f0
1 changed files with 44 additions and 3 deletions
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47
src/hardware/vga_misc.cpp
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@ -33,7 +33,6 @@ static void write_p3d9(Bit32u port,Bit8u val);
static Bit8u read_p3da(Bit32u port) {
vga.internal.attrindex=false;
vga.tandy.set_reg=true;
if (vga.config.retrace) {
switch (vga.mode) {
case M_HERC:
@ -55,7 +54,6 @@ static Bit8u read_p3da(Bit32u port) {
*/
}
static void write_p3d8(Bit32u port,Bit8u val) {
/* Check if someone changes the blinking/hi intensity bit */
switch (machine) {
@ -131,6 +129,47 @@ static void write_p3d9(Bit32u port,Bit8u val) {
}
}
static void write_p3da(Bit32u port,Bit8u val) {
if (machine==MCH_TANDY) goto tandy_3da;
switch (vga.mode) {
case M_TANDY16:
tandy_3da:
vga.tandy.reg_index=val;
break;
default:
LOG(LOG_VGAMISC,LOG_NORMAL)("Unhandled Write %2X to %X in mode %d",val,port,vga.mode);
break;
}
}
static void write_p3de(Bit32u port,Bit8u val) {
if (machine==MCH_TANDY) goto tandy_3de;
switch (vga.mode) {
case M_TANDY16:
tandy_3de:
switch (vga.tandy.reg_index) {
case 0x2: /* Border color */
vga.tandy.border_color=val;
break;
/* palette colors */
case 0x10: case 0x11: case 0x12: case 0x13:
case 0x14: case 0x15: case 0x16: case 0x17:
case 0x18: case 0x19: case 0x1a: case 0x1b:
case 0x1c: case 0x1d: case 0x1e: case 0x1f:
VGA_ATTR_SetPalette(vga.tandy.reg_index-0x10,val & 0xf);
break;
default:
LOG(LOG_VGAMISC,LOG_NORMAL)("Unhandled Write %2X to tandy reg %X",val,vga.tandy.reg_index);
}
break;
default:
LOG(LOG_VGAMISC,LOG_NORMAL)("Unhandled Write %2X to %X in mode %d",val,port,vga.mode);
break;
}
}
static void write_p3df(Bit32u port,Bit8u val) {
if (machine==MCH_TANDY) goto tandy_3df;
switch (vga.mode) {
@ -273,7 +312,9 @@ void VGA_SetupMisc(void) {
IO_RegisterWriteHandler(0x3b8,write_hercules,"Hercules");
IO_RegisterWriteHandler(0x3bf,write_hercules,"Hercules");
}
IO_RegisterWriteHandler(0x3df,write_p3df,"PCJR Setting");
IO_RegisterWriteHandler(0x3de,write_p3de,"PCJR Reg Write");
IO_RegisterWriteHandler(0x3df,write_p3df,"PCJR Bank Select");
IO_RegisterWriteHandler(0x3da,write_p3da,"PCJR Reg Select");
}