diff options
Diffstat (limited to 'bincode.asm')
| -rw-r--r-- | bincode.asm | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/bincode.asm b/bincode.asm index 4f1b180..cad1050 100644 --- a/bincode.asm +++ b/bincode.asm @@ -68,7 +68,7 @@ li.size equ 12 ; search for 'li.size'! link_entries equ 64 -; sysconfig data +; sysconfig data (64 bytes [sc.size]) sc.bootloader equ 0 sc.sector_shift equ 1 sc.media_type equ 2 @@ -90,6 +90,11 @@ sc.archive_start equ 36 sc.archive_end equ 40 sc.mem0_start equ 44 sc.mem0_end equ 48 +sc.xmem_start equ 52 +sc.xmem_end equ 56 +sc.features equ 60 +sc.reserved_1 equ 62 +sc.size equ 64 ; enum_type_t @@ -822,6 +827,22 @@ gfx_init_20: pop dword [malloc.area+4] mov ebx,[boot.sysconfig] + cmp byte [es:ebx+sc.sysconfig_size],sc.size + jb gfx_init_28 + ; pass back feature flags + mov word [es:ebx+sc.features],3 + ; only one xmem area + mov eax,[es:ebx+sc.xmem_start] + mov edx,[es:ebx+sc.xmem_end] + cmp edx,eax + jbe gfx_init_28 + ; ok, use only this one + mov [malloc.area+8],eax + mov [malloc.area+8+4],edx + jmp gfx_init_40 + +gfx_init_28: + ; old way to specify extended mem areas mov esi,malloc.area+8 mov ecx,malloc.areas-1 ; extended mem areas gfx_init_30: |