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- implement Tandy special 4-color palette handling

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- remove 3d8/3d9 from PCJr mode (PCJr didn't have it)
- update INT10 palette functions accordingly
- add a level of indirection to Tandy and PCjr palette deconding to fix video recording with on-screen palette changes
- enable line-by-line emulation for Tandy too
- machine-specific implementation of the color when display is disabled (vgaonly too)
- enable the light pen stub on all machines that it is documented for
- mask off a bank-selection bit that is not used under a specific circumstance

Fixes Alley Cat palette on PCJr, Gauntlet, Ghostbusters, Pirates! on Tandy, Video recording on Tandy/PCJr where the palette is changed on-screen


Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3647
This commit is contained in:
Ralf Grillenberger 2010-10-01 19:39:14 +00:00
parent 959ea1527f
commit c2622359f9
5 changed files with 327 additions and 130 deletions
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3
src/ints/int10.cpp
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@ -140,7 +140,8 @@ static Bitu INT10_Handler(void) {
reg_ah=(Bit8u)real_readw(BIOSMEM_SEG,BIOSMEM_NB_COLS);
break;
case 0x10: /* Palette functions */
if ((machine==MCH_CGA) || ((!IS_VGA_ARCH) && (reg_al>0x03))) break;
if (!IS_EGAVGA_ARCH && (reg_al>0x02)) break;
else if (!IS_VGA_ARCH && (reg_al>0x03)) break;
switch (reg_al) {
case 0x00: /* SET SINGLE PALETTE REGISTER */
INT10_SetSinglePaletteRegister(reg_bl,reg_bh);