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Add final (slightly modified and extended) part of patch 1295927 (vga accuracy) from keith. Add (modified) bug/patch 1241142(ansi emulation updates) from moe. Add fix suggested by vasyl to fix MyChess. Corrected some missing parts in these patches. (Missing update nbrows in dev_con.h). Implemented a writebuffer to workaround the CR/LF issue. Let's hope everything still works

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2333
This commit is contained in:
Peter Veenstra 2005-10-02 10:12:31 +00:00
parent 06d4ae4b3b
commit 0b4350c79d
7 changed files with 66 additions and 36 deletions
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9
src/ints/int10.cpp
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@ -46,6 +46,7 @@ static Bitu INT10_Handler(void) {
break;
}
#endif
switch (reg_ah) {
case 0x00: /* Set VideoMode */
INT10_SetVideoMode(reg_al);
@ -279,6 +280,14 @@ graphics_chars:
reg_cx=real_readb(BIOSMEM_SEG,BIOSMEM_SWITCHES) & 0x0F;
break;
}
case 0x34: /* ALTERNATE FUNCTION SELECT (VGA) - CURSOR EMULATION */
{
// bit 0: 0=enable, 1=disable
Bit8u temp = real_readb(BIOSMEM_SEG,BIOSMEM_VIDEO_CTL) & 0xfe;
real_writeb(BIOSMEM_SEG,BIOSMEM_VIDEO_CTL,temp|reg_al);
reg_al=0x12;
break;
}
case 0x36: /* VGA Refresh control */
/*
Call disables/enables the vga from outputting video,