diff options
| author | Volker Ruppert <info@vruppert.de> | 2004-08-08 16:52:55 +0000 |
|---|---|---|
| committer | Volker Ruppert <info@vruppert.de> | 2004-08-08 16:52:55 +0000 |
| commit | 5be431552197c518864d4d30e14841f5d089d2ed (patch) | |
| tree | 019ccdd6e7c97aa113e01bf520b6e0b2013f8a4c | |
| parent | c52ec26b1ae2e970e05efe7efbc925fb6cb52c04 (diff) | |
| download | vgabios-5be431552197c518864d4d30e14841f5d089d2ed.tar.gz | |
- use single bank mode for VBE
- enable 16k granularity for VBE only
| -rw-r--r-- | clext.c | 18 |
1 files changed, 9 insertions, 9 deletions
@@ -60,13 +60,13 @@ typedef struct /* VGA */ unsigned short cseq_vga[] = {0x0007,0xffff}; -unsigned short cgraph_vga[] = {0x0009,0x000a,0x200b,0xffff}; +unsigned short cgraph_vga[] = {0x0009,0x000a,0x000b,0xffff}; unsigned short ccrtc_vga[] = {0x001a,0x001b,0x001d,0xffff}; /* extensions */ unsigned short cgraph_svgacolor[] = { 0x0000,0x0001,0x0002,0x0003,0x0004,0x4005,0x0506,0x0f07,0xff08, -0x0009,0x000a,0x200b, +0x0009,0x000a,0x000b, 0xffff }; /* 640x480x8 */ @@ -598,7 +598,7 @@ is_text_mode: pop ds ret -cirrus_enable_dualbank: +cirrus_enable_16k_granularity: push ax push dx mov dx, #0x3ce @@ -606,7 +606,7 @@ cirrus_enable_dualbank: out dx, al inc dx in al, dx - or al, #0x21 ;; enable dual bank + or al, #0x20 ;; enable 16k out dx, al pop dx pop ax @@ -827,15 +827,15 @@ cirrus_vesa_01h_1: mov ax, #0x003b ;; mode stosw - mov ax, #0x0707 ;; attr + mov ax, #0x0007 ;; attr stosw mov ax, #0x0010 ;; granularity =16K stosw - mov ax, #0x0020 ;; size =32K + mov ax, #0x0040 ;; size =64K stosw mov ax, #0xA000 ;; segment A stosw - mov ax, #0xA800 ;; segment B + xor ax, ax ;; no segment B stosw mov ax, #cirrus_vesa_05h_farentry stosw @@ -964,8 +964,8 @@ cirrus_vesa_02h_1: call cirrus_get_modeentry_nomask call cirrus_switch_mode test bx, #0x4000 ;; LFB - jz cirrus_vesa_02h_3 - call cirrus_enable_dualbank + jnz cirrus_vesa_02h_3 + call cirrus_enable_16k_granularity cirrus_vesa_02h_3: pop ax push ds |