valter/dosbox-staging
1
0
Fork 0
Code Releases Activity

CMOS equipment list startup display mode bits differ from BIOS on EGA/VGA; fixes Sauro.

Browse source 
Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@4186
This commit is contained in:
ripsaw8080 2019-02-04 15:09:56 +00:00
parent fdd8358de7
commit 014326476f
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/ints/bios.cpp
View file

@ -1283,6 +1283,7 @@ public:
// Gameport
config |= 0x1000;
mem_writew(BIOS_CONFIGURATION,config);
if (IS_EGAVGA_ARCH) config &= ~0x30; //EGA/VGA startup display mode differs in CMOS
CMOS_SetRegister(0x14,(Bit8u)(config&0xff)); //Should be updated on changes
/* Setup extended memory size */
IO_Write(0x70,0x30);
@ -1337,6 +1338,7 @@ void BIOS_SetComPorts(Bit16u baseaddr[]) {
equipmentword &= (~0x0E00);
equipmentword |= (portcount << 9);
mem_writew(BIOS_CONFIGURATION,equipmentword);
if (IS_EGAVGA_ARCH) equipmentword &= ~0x30; //EGA/VGA startup display mode differs in CMOS
CMOS_SetRegister(0x14,(Bit8u)(equipmentword&0xff)); //Should be updated on changes
}