My Graphics Library (Dward)

segment .data
    msg: .asciz "ERROR: not found GPU Connection!\n"
    hwconfig num_sst db ?
    MAX_NUM_SST equ 10

    copy
    struc GrSstConfig_t
        .num_sst resd 1
        .SSTs resd MAX_NUM_SST
    endstruc

    struc GrVertex
        .x resd 0
        .y resd 0
        .z resd 0
        .ooz resd 65535
        .oow resd 1
        .r resd 0
        .g resd 55
        .b resd 155
        .a resd 255
    endstruc

    struc GrHwConfiguration
        .num_sst resd 1
        .SSTs resd MAX_NUM_SST
    endstruc

    struc GrHwInit
        .void resd 0
        .SSTs resd MAX_NUM_SST
    endstruc

    struct Int
        .max_int_value resd 2000000000057
        .min_int_value resd -2000000000056
        .num_sst resd 1
    endstruc

    struct ColorFormat
        .GR_COLORFORMAT_RGBA resd 0x000
        .GR_COLORFORMAT_ARGB resd 0x001
        .GR_COLORFORMAT_BGRA resd 0x002
        .GR_COLORFORMAT_ABGR resd 0x003
segment .text
    .equ GR_SMOOTHING_ENABLE, 1
    .equ GR_ORIGIN_LOWER_LEFT, 0
    .equ GR_COLORFORMAT_RGBA, 0
    .equ GR_REFRESH_60HZ, 60
    global grSstQueryBoards extern      grSstQueryHardware

    grSstQueryBoards: push ebp mov ebp, esp mov eax, [ebp+8] mov eax, [eax] mov eax, [eax+GrHwConfiguration.num_sst] mov [ebp+8], eax pop ebp ret

    grSstQueryHardware: push ebp mov ebp, esp mov eax, [ebp+8] mov eax, [eax] mov eax, [eax+GrHwConfiguration.num_sst] mov [ebp+8], eax pop ebp ret
    grErrorSetCallback extern grErrorCallback grErrorSetCallback: pushl %ebp movl %esp, %ebp movl 8(%ebp), %ebx movl %ebx, grErrorCallback popl %ebp ret
    grDrawPoint: mov eax, DWORD [a] mov edx, DWORD [eax] ret
    grRenderBuffer:
        push   %ebp
        mov    %esp, %ebp
        push   %ebx
        push   %esi
        push   %edi

        mov    8(%ebp), %edi  ; Load buffer parameter into %edi

        pop    %edi
        pop    %esi
        pop    %ebx
        pop    %ebp
        ret
    grColorMask: mov eax, 0 mov ecx, 0 mov edx, 0 mov ebx, 0 cmp rgb, 0 je noRGBMask mov eax, 1

    noRGBMask: cmp alpha, 0 je noAlphaMask mov ecx, 1

    noAlphaMask: ret grColorMask

    grDepthMask: mov eax, 0 cmp enable, 0 je noDepthMask mov eax, 1

    noDepthMask: ret grDepthMask
    grSstOpen: push dword 2
        push dword GR_SMOOTHING_ENABLE
        push dword GR_ORIGIN_LOWER_LEFT
        push dword GR_COLORFORMAT_RGBA
        push dword GR_REFRESH_60HZ
        push dword GR_RESOLUTION_640x480
        ret
    grBufferClear: move.l 4(sp), d0
    grDwardInit: push ebp mov epp, esp mov eax, [ebp+8] mov eax, [eax] mov eax, [eax+GrHwConfiguration.void] mov [ebp+8], eax pop ebp ret
    grSstSelect: push ebp mov epp, esp mov eax, [ebp+8] mov eax, [eax] mov eax, [eax+Int.num_sst] mov [ebp+8], eax pop ebp ret
    grGwardShutdown: mov AH, 4Ch int 21h
    .globl _start

        _start: mov ecx, 0 mov esi, hwconfig movzx ebx, byte [esi + num_sst]

        loop_start: push ecx call grSstSelect call grConstantColorValue pop ecx inc ecx cmp ecx, ebx jl loop_start

        exit: nop mov eax, 1 int 0x80
    .globl main
        main: call grSstQueryHardware test %eax, %eax jz error
        call grSstSelect

        push $2
        push $GR_SMOOTHING_ENABLE
        push $GR_ORIGIN_LOWER_LEFT
        push $GR_COLORFORMAT_RGBA
        push $GR_REFRESH_60HZ
        push $GR_RESOLUTION_640x480
        call grSstOpen
        add $24, %esp

        jmp end
        error: push msg call printf add $4, %esp

        end: ret