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Don't check valid window parameter in cpu window calls

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1194
This commit is contained in:
Sjoerd van der Berg 2003-08-22 08:09:59 +00:00
parent 8f655ccc0d
commit c2d6a1e2c4
1 changed files with 8 additions and 7 deletions
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15
src/ints/int10_vesa.cpp
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@ -150,7 +150,8 @@ Bit8u VESA_GetSVGAMode(Bit16u & mode) {
}
Bit8u VESA_SetCPUWindow(Bit8u window,Bit16u address) {
if (!window && (address<32)) {
//TODO Check with univbe if it doesn't check for window param either
if ((address<32)) {
IO_Write(0x3d4,0x6a);
IO_Write(0x3d5,(Bit8u)address);
return 0x0;
@ -158,11 +159,10 @@ Bit8u VESA_SetCPUWindow(Bit8u window,Bit16u address) {
}
Bit8u VESA_GetCPUWindow(Bit8u window,Bit16u & address) {
if (!window) {
IO_Write(0x3d4,0x6a);
address=IO_Read(0x3d5);
return 0x0;
} else return 0x1;
//TODO Check with univbe if it doesn't check for window param either
IO_Write(0x3d4,0x6a);
address=IO_Read(0x3d5);
return 0x0;
}
@ -268,7 +268,8 @@ Bit8u VESA_GetDisplayStart(Bit16u & x,Bit16u & y) {
static char oemstring[]="S3 Incorporated. Trio64";
static Bitu SetWindowPositionHandler(void) {
VESA_SetCPUWindow(reg_bl,reg_dx);
if (reg_bh) VESA_GetCPUWindow(reg_bl,reg_dx);
else VESA_SetCPUWindow(reg_bl,reg_dx);
return 0;
}