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kolibrios/kernel/branches/gfx_kernel/boot/bootvesa.inc
Mihail Semenyako (mike.dld) 8a1c0404e2 Updated gfx_kernel to revision #383 
git-svn-id: svn://kolibrios.org@384 a494cfbc-eb01-0410-851d-a64ba20cac60
2007-03-03 17:43:42 +00:00

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struc VBE_VGAInfo {
.VESASignature dd ? ; char
.VESAVersion dw ? ; short
.OemStringPtr dd ? ; char *
.Capabilities dd ? ; ulong
.VideoModePtr dd ? ; ulong
.TotalMemory dw ? ; short
; VBE 2.0+
.OemSoftwareRev db ? ; short
.OemVendorNamePtr dw ? ; char *
.OemProductNamePtr dw ? ; char *
.OemProductRevPtr dw ? ; char *
.reserved rb 222 ; char
.OemData rb 256 ; char
}
struc VBE_ModeInfo {
.ModeAttributes dw ? ; short
.WinAAttributes db ? ; char
.WinBAttributes db ? ; char
.WinGranularity dw ? ; short
.WinSize dw ? ; short
.WinASegment dw ? ; ushort
.WinBSegment dw ? ; ushort
.WinFuncPtr dd ? ; void *
.BytesPerScanLine dw ? ; short
.XRes dw ? ; short
.YRes dw ? ; short
.XCharSize db ? ; char
.YCharSize db ? ; char
.NumberOfPlanes db ? ; char
.BitsPerPixel db ? ; char
.NumberOfBanks db ? ; char
.MemoryModel db ? ; char
.BankSize db ? ; char
.NumberOfImagePages db ? ; char
.res1 db ? ; char
.RedMaskSize db ? ; char
.RedFieldPosition db ? ; char
.GreenMaskSize db ? ; char
.GreenFieldPosition db ? ; char
.BlueMaskSize db ? ; char
.BlueFieldPosition db ? ; char
.RsvedMaskSize db ? ; char
.RsvedFieldPosition db ? ; char
.DirectColorModeInfo db ? ; char ; MISSED IN THIS TUTORIAL!! SEE ABOVE
; VBE 2.0+
.PhysBasePtr dd ? ; ulong
.OffScreenMemOffset dd ? ; ulong
.OffScreenMemSize dw ? ; short
; VBE 3.0+
.LinbytesPerScanLine dw ? ; short
.BankNumberOfImagePages db ? ; char
.LinNumberOfImagePages db ? ; char
.LinRedMaskSize db ? ; char
.LinRedFieldPosition db ? ; char
.LingreenMaskSize db ? ; char
.LinGreenFieldPosition db ? ; char
.LinBlueMaskSize db ? ; char
.LinBlueFieldPosition db ? ; char
.LinRsvdMaskSize db ? ; char
.LinRsvdFieldPosition db ? ; char
.MaxPixelClock dd ? ; ulong
.res2 rb 190 ; char
}
virtual at $A000
vi VBE_VGAInfo
mi VBE_ModeInfo
modes_table:
end virtual
ln_top db 1
ln_num db 6
ln_cnt db ?
db ?
ln_top2 db ?
ln_num2 db ?
ln_cnt2 db ?
db ?
vm_row db 2
vm_col db 2
print_vesa_info:
push 0
pop es
_setcursor 3,2
mov [es:vi.VESASignature],'VBE2'
mov ax,$4F00
mov di,vi
int $10
or ah,ah
jz @f
mov [es:vi.VESASignature],'VESA'
mov ax,$4F00
mov di,vi
int $10
or ah,ah
jnz .exit
@@:
cmp [es:vi.VESASignature],'VESA'
jne .exit
cmp [es:vi.VESAVersion],$0100
jb .exit
jmp .vesaok2
.exit:
;pushad
push 0
pop es
mov si,novesa-0x10000
call printplain
ret
;pushw 'bb'
;jmp enum_modes.modes_ok
.vesaok2:
mov ecx,0x00200000
mov ax,[es:vi.TotalMemory]
shr ax,4
mov bl,10
div bl
mov ch,ah
and ax,0x00FF
div bl
shl ecx,8
mov cx,ax
add ecx,'000'
mov ax,[es:vi.VESAVersion]
add ax,'00'
push 0x1000
pop es
mov [es:s_vesa.ver-0x10000], ah
mov [es:s_vesa.ver+2-0x10000], al
mov dword[es:s_vesa.mem-0x10000],ecx
mov si,s_vesa-0x10000
call printplain
if 0 ; mm
_setcursor 5,2
mov si,_oem-0x10000
call printplain
end if ; mm
push 0
pop es
mov si,word[es:vi.OemStringPtr]
mov di,si
push word[es:vi.OemStringPtr+2]
pop es
if 0 ; mm
; mov al,0x0A
pop es
mov ax,es
mov ds,ax
call printplain
pop es
end if ; mm
push 0x1000
pop ds
mov si,s_ven_intel-0x10000
call substr
mov al,1
je .vendor_ok
mov si,s_ven_s3-0x10000
call substr
mov al,2
je .vendor_ok
mov al,3
.vendor_ok:
push 0 0x1000
pop ds es
mov [es:0x9035],al
ret
;-----------------------------------------------------------------------------
calc_vmodes_table:
push 0 0x1000
pop ds es
;movzx eax,byte [es:preboot_graph-0x10000]
;cmp eax,0
;jne pre_graph
;_setcursor 9,2
;mov si,gr_mode-0x10000
;call printplain
.enum_modes:
pushad
push 0x0000
pop es
;mov si,s_mode1-0x10000
;call printplain
mov si,word[es:vi.VideoModePtr]
push word[es:vi.VideoModePtr+2]
pop fs
;pushw 1
mov bx,modes_table;-0x10000
.next_mode:
mov cx,[fs:si] ; mode number
cmp cx,-1
je .modes_ok.2
mov ax,$4F01
mov di,mi
int $10
or ah,ah
jnz .modes_ok.2;vesa_info.exit
test [es:mi.ModeAttributes],00000001b
jz @f
test [es:mi.ModeAttributes],00010000b
jz @f
cmp [es:mi.BitsPerPixel],16
jne .l0
cmp [es:mi.GreenMaskSize],5
jne .l0
mov [es:mi.BitsPerPixel],15
.l0:
cmp [es:mi.XRes],640
jb @f
cmp [es:mi.YRes],480
jb @f
cmp [es:mi.BitsPerPixel],15
jb @f
mov ax,[es:mi.XRes]
mov [es:bx+0],ax ; +0[2] : resolution X
mov ax,[es:mi.YRes]
mov [es:bx+2],ax ; +2[2] : resolution Y
mov ax,[es:mi.ModeAttributes]
mov [es:bx+4],ax ; +4[2] : attributes
cmp [s_vesa.ver-0x10000],'2'
jb .lp1
or cx,0x4000 ; use LFB
.lp1: mov [es:bx+6],cx ; +6[2] : mode number
mov al,[es:mi.BitsPerPixel]
mov [es:bx+8],al ; +8[1] : bits per pixel
add bx,10
@@:
add si,2
jmp .next_mode
.modes_ok.2:
mov si,modes_table;-0x10000;m_info
@@: add si,10
cmp si,bx
jae @f
mov ax,[es:si+0-10]
cmp ax,[es:si+0]
ja .xch
jb @b
mov ax,[es:si+2-10]
cmp ax,[es:si+2]
ja .xch
jb @b
mov al,[es:si+8-10]
cmp al,[es:si+8]
ja .xch
jb @b
pushad
.del: push dword[es:si+0] dword[es:si+4] word[es:si+8] dword[es:si+0+10] dword[es:si+4+10] word[es:si+8+10]
pop word[es:si+8] dword[es:si+4] dword[es:si+0] word[es:si+8+10] dword[es:si+4+10] dword[es:si+0+10]
add si,10
cmp si,bx
jb .del
popad
mov si,modes_table
sub bx,10
jmp @b
.xch: push dword[es:si+0] dword[es:si+4] word[es:si+8] dword[es:si+0-10] dword[es:si+4-10] word[es:si+8-10]
pop word[es:si+8] dword[es:si+4] dword[es:si+0] word[es:si+8-10] dword[es:si+4-10] dword[es:si+0-10]
mov si,modes_table;-0x10000;m_info
jmp @b
@@:
push 0
pop es
mov word[es:bx],-1
mov si,modes_table
mov di,0x0AC00
pushw [es:si+2] [es:si+0]
mov bp,sp
mov [ds:ln_cnt],0
mov word[es:si-10],0
jmp .wr.2
@@:
cmp word[es:si-10],-1
je @f
mov ax,[es:si+0]
cmp ax,[ss:bp+0]
jne .wr
mov ax,[es:si+2]
cmp ax,[ss:bp+2]
jne .wr
.ww: mov al,[es:si+8]
mov bx,4
cmp al,4
je .l1
add bx,4
cmp al,8
je .l1
add bx,4
cmp al,15
je .l1
add bx,4
cmp al,16
je .l1
add bx,4
cmp al,24
je .l1
add bx,4
.l1: mov eax,[es:si+4] ; mode attributes & number
mov [es:di+bx],eax
add si,10
jmp @b
.wr:
pushw [ss:bp+0] [ss:bp+2]
popw [es:di+2] [es:di+0]
add di,4+6*4
inc [ds:ln_cnt]
pushw [es:si+0] [es:si+2]
popw [ss:bp+2] [ss:bp+0]
.wr.2:
mov cx,(4+6*4)/2
xor ax,ax
push di
cld
rep stosw
pop di
jmp .ww
@@: add sp,4
popad
ret
;-----------------------------------------------------------------------------
vm_bpp db 4,8,15,16,24,32
draw_current_vmode:
push es ds 0 0x1000
pop es ds
movzx ax,[es:vm_row]
mov dx,4+6*4
mul dx
mov si,ax
add si,0x0AC00
mov di,0x0A000
movzx eax,word[si+0]
mov ecx,10
call int2strnz
mov byte[ds:di],'x'
inc di
movzx eax,word[si+2]
call int2strnz
mov byte[ds:di],'x'
inc di
movzx bx,[es:vm_col]
movzx eax,[es:bx+vm_bpp]
call int2strnz
mov byte[ds:di],0
mov si,0x0A000
call printplain
pop ds es
ret
;-----------------------------------------------------------------------------
draw_vmodes_table:
_setcursor 9,2
mov si,gr_mode-0x10000
call printplain
;mov ah,9
;mov dx,_tl
;int $21
mov si,_tl-0x10000
call printplain
push 0
pop es
movzx ax,[ds:ln_top]
mov dx,4+6*4
mul dx
mov si,ax
add si,0x0AC00
mov eax,dword[ds:ln_top]
mov dword[ds:ln_top2],eax ; top+num+cnt
movzx cx,[ds:ln_num2]
@@: push cx
movzx eax,word[es:si+0]
mov di,_rs-0x10000+2+14
mov ecx,10
mov bl,4
call int2str
movzx eax,word[es:si+2]
inc di
mov bl,4
call int2str
add si,4
add di,4
mov cx,6
.lp0: mov al,' '
cmp word[es:si],0
je .lp1
mov al,0xFB ; check
.lp1: mov [ds:di],al
add si,4
add di,6
loop .lp0
push si
mov si,_rs-0x10000
call printplain
pop si
pop cx
loop @b
mov si,_bt-0x10000
call printplain
ret
;-----------------------------------------------------------------------------
draw_vmodes_table_cursor: ; 9+5
mov al,[vm_row]
sub al,[ln_top]
add al,13
mov dh,al
mov al,[vm_col]
mov dl,6
mul dl
add al,28
mov dl,al
call setcursor
mov si,_sel1-0x10000
mov [si],ch
call printplain
add dl,2
call setcursor
mov si,_sel2-0x10000
mov [si],cl
call printplain
dec dl
call setcursor
ret
;-----------------------------------------------------------------------------
macro qwe
{
pushad
pushfd
push es ds 0 0x1000
pop ds es
mov si,badsect-2-0x10000
call printplain
pop ds es
popfd
popad
}
set_vmode:
push 0 0x1000
pop ds es
movzx ax,[ds:vm_row]
mov dx,4+6*4
mul dx
add ax,0x0AC00
mov si,ax
mov cx,[es:si+0] ; resolution X
mov dx,[es:si+2] ; resolution Y
movzx bx,[ds:vm_col]
shl bx,2
mov bx,[es:si+4+bx+2] ; mode number
; mov bx,0x4118
; mov cx,1024
; mov dx,768
; mov byte[es:0x9000],24
cmp bx,0x12
je .gml00
cmp bx,0x13
je .sgml1
movzx bp,[ds:vm_col]
mov al,[ds:bp+vm_bpp]
mov [es:0x9000],al
jmp .gml10
.sgml1:
mov [es:0x9000],byte 32
jmp .gml10
.gml00:
mov [es:0x9000],byte 4
.gml10:
mov [es:0x9008],bx
mov [es:0x900A],cx
mov [es:0x900C],dx
mov al,[s_vesa.ver-0x10000]
mov [es:0x9034],al
; push 0x1000
; pop es
mov [s_bpp.bpp-0x10000],'8 '
cmp bx,0x13
je .bppl;nov
mov [s_bpp.bpp-0x10000],'4 '
cmp bx,0x12
je .bppl;nov
; bx - mode : cx - x size : dx - y size
; FIND VESA 2.0 LFB & BPP
mov ax,0x4f01
mov cx,bx
and cx,0xfff
push 0x0000
pop es
mov di,mi;0xa000
int 0x10
; LFB
mov eax,[es:mi.PhysBasePtr];di+0x28]
mov [es:0x9018],eax
; BPP
; cmp [es:mi.BitsPerPixel],16
; jne .l0
; cmp [es:mi.GreenMaskSize],5
; jne .l0
; mov [es:mi.BitsPerPixel],15
; .l0: mov al,[es:mi.BitsPerPixel];di+0x19]
; mov [es:0x9000],al
; ---- vbe voodoo
;BytesPerScanLine equ 0x10
push ax
mov ax, [es:mi.BytesPerScanLine];di+BytesPerScanLine]
mov [es:0x9001],ax
pop ax
; -----
.nov:
mov al,[es:0x9000]
cmp al,15
jnz .nbpp15
mov [s_bpp.bpp-0x10000],'15'
jmp .bppl
.nbpp15:
cmp al,16
jnz .nbpp16
mov [s_bpp.bpp-0x10000],'16'
jmp .bppl
.nbpp16:
cmp al,24
jnz .nbpp24
mov [s_bpp.bpp-0x10000],'24'
jmp .bppl
.nbpp24:
cmp al,32
jnz .nbpp32
mov [s_bpp.bpp-0x10000],'32'
jmp .bppl
.nbpp32:
mov [s_bpp.bpp-0x10000],'??'
mov si,s_bpp-0x10000
call printplain
jmp $
.bppl:
mov si,s_bpp-0x10000
call printplain
; FIND VESA 1.2 PM BANK SWITCH ADDRESS
cmp [s_vesa.ver-0x10000],'2'
jb @f
mov ax,0x4f0A
mov bx,0x0
int 0x10
xor eax,eax
xor ebx,ebx
mov ax,es
shl eax,4
mov bx,di
add eax,ebx
movzx ebx,word[es:di]
add eax,ebx
push 0x0000
pop es
mov [es:0x9014],eax
jmp .lp1
@@:
mov dword[es:0x9018],0x000A0000
.lp1:
ret
;=============================================================================
;=============================================================================
;=============================================================================
; DISPLAY VESA INFORMATION
vesa_info:
macro sdfawgsgwaew {
push 0
pop es
mov [es:vi.VESASignature],'VBE2'
mov ax,$4F00
mov di,vi
int $10
or ah,ah
jz @f
mov [es:vi.VESASignature],'VESA'
mov ax,$4F00
mov di,vi
int $10
or ah,ah
jnz .exit
@@:
cmp [es:vi.VESASignature],'VESA'
jne .exit
cmp [es:vi.VESAVersion],$0100
jb .exit
jmp vesaok2
.exit:
pushad
push 0
pop es
mov si,s_mode1-0x10000
call printplain
; mov si,word[es:vi.VideoModePtr]
; push word[es:vi.VideoModePtr+2]
; pop fs
pushw 'bb'
jmp enum_modes.modes_ok
; push 0x1000
; pop es
; mov si,novesa-0x10000
; call print
; mov ax,16
; jmp $;novesafound
vesaok2:
mov ecx,0x00200000
mov ax,[es:vi.TotalMemory]
shr ax,4
mov bl,10
div bl
mov ch,ah
and ax,0x00FF
div bl
shl ecx,8
mov cx,ax
add ecx,'000'
mov ax,[es:vi.VESAVersion]
add ax,'00'
push 0x1000
pop es
mov [es:s_vesa.ver-0x10000], ah
mov [es:s_vesa.ver+2-0x10000], al
mov dword[es:s_vesa.mem-0x10000],ecx
mov si,s_vesa-0x10000
call print
;// mike.dld, 2005-08-20 [
mov si,_oem-0x10000
call print
push 0
pop es
mov si,word[es:vi.OemStringPtr]
mov di,si
push word[es:vi.OemStringPtr+2]
pop es
mov al,0x0A
push es
call draw_text
pop es
push 0x1000
pop ds
mov si,s_ven_intel-0x10000
call substr
mov al,1
je vendor_ok
mov si,s_ven_s3-0x10000
call substr
mov al,2
je vendor_ok
mov al,3
vendor_ok:
push 0 0x1000
pop ds es
mov [es:0x9035],al
;// mike.dld, 2005-08-20 ]
novesafound:
;!! call setbase1000
; ASK GRAPHICS MODE
movzx eax,byte [es:preboot_graph-0x10000]
cmp eax,0
jne pre_graph
mov si,gr_mode-0x10000
call printplain
enum_modes:
pushad
push 0x0000
pop es
mov si,s_mode1-0x10000
call printplain
mov si,word[es:vi.VideoModePtr]
push word[es:vi.VideoModePtr+2]
pop fs
pushw 1
mov bx,modes_table;-0x10000
.next_mode:
mov cx,[fs:si] ; mode number
cmp cx,-1
je .modes_ok.2
mov ax,$4F01
mov di,mi
int $10
or ah,ah
jnz .modes_ok.2;vesa_info.exit
test [es:mi.ModeAttributes],00000001b
jz @f
test [es:mi.ModeAttributes],00010000b
jz @f
cmp [es:mi.BitsPerPixel],16
jne .l0
cmp [es:mi.GreenMaskSize],5
jne .l0
mov [es:mi.BitsPerPixel],15
.l0:
cmp [es:mi.XRes],640
jb @f
cmp [es:mi.YRes],480
jb @f
cmp [es:mi.BitsPerPixel],15
jb @f
mov ax,[es:mi.XRes]
mov [es:bx+0],ax
mov ax,[es:mi.YRes]
mov [es:bx+2],ax
mov ax,[es:mi.ModeAttributes]
mov [es:bx+4],ax
cmp [s_vesa.ver-0x10000],'2'
jb .lp1
or cx,0x4000 ; use LFB
.lp1: mov [es:bx+6],cx
mov al,[es:mi.BitsPerPixel]
mov [es:bx+8],al
add bx,10
@@:
add si,2
jmp .next_mode
.modes_ok.2:
mov si,modes_table;-0x10000;m_info
@@: add si,10
cmp si,bx
jae @f
mov ax,[es:si+0-10]
cmp ax,[es:si+0]
ja .xch
jb @b
mov ax,[es:si+2-10]
cmp ax,[es:si+2]
ja .xch
jb @b
mov al,[es:si+8-10]
cmp al,[es:si+8]
ja .xch
jb @b
pushad
.del: push dword[es:si+0] dword[es:si+4] word[es:si+8] dword[es:si+0+10] dword[es:si+4+10] word[es:si+8+10]
pop word[es:si+8] dword[es:si+4] dword[es:si+0] word[es:si+8+10] dword[es:si+4+10] dword[es:si+0+10]
add si,10
cmp si,bx
jb .del
popad
mov si,modes_table
sub bx,10
jmp @b
.xch: push dword[es:si+0] dword[es:si+4] word[es:si+8] dword[es:si+0-10] dword[es:si+4-10] word[es:si+8-10]
pop word[es:si+8] dword[es:si+4] dword[es:si+0] word[es:si+8-10] dword[es:si+4-10] dword[es:si+0-10]
mov si,modes_table;-0x10000;m_info
jmp @b
@@: ;mov ah,9
;mov dx,_tl
;int $21
mov si,_tl-0x10000
push bx
call printplain
pop bx
push 0
pop es
mov word[es:bx],-1
mov si,modes_table;-0x10000;m_info
pushw [es:si+0] [es:si+2] 'c'
mov bp,sp
@@:
cmp word[es:si-10],-1
je @f
; cmp si,bx
; jae @f
mov ax,[es:si+0]
cmp ax,[ss:bp+4]
jne .wr
mov ax,[es:si+2]
cmp ax,[ss:bp+2]
jne .wr
.ww: push bx
movzx eax,word[es:si+0]
mov di,_rs-0x10000+2
mov ecx,10
mov bl,4
call int2str
movzx eax,word[es:si+2]
inc di
mov bl,4
call int2str
mov al,[es:si+8]
mov di,_rs-0x10000+16
cmp al,4
je .l1
add di,5
cmp al,8
je .l1
add di,5
cmp al,15
je .l1
add di,5
cmp al,16
je .l1
add di,5
cmp al,24
je .l1
add di,5
.l1: mov al,[ss:bp]
cmp byte[ds:di],'-'
jne .lp0
mov [ds:di],al
inc byte[ss:bp]
jmp .lp2
.lp0:
.lp2:
pop bx
add si,10
jmp @b;.sk
.wr: ;mov ah,9
;mov dx,_rs
;int $21
push bx si
mov si,_rs-0x10000
call printplain
pop si bx
mov byte[ds:_rs-0x10000+16+5*0],'-'
mov byte[ds:_rs-0x10000+16+5*1],'-'
mov byte[ds:_rs-0x10000+16+5*2],'-'
mov byte[ds:_rs-0x10000+16+5*3],'-'
mov byte[ds:_rs-0x10000+16+5*4],'-'
mov byte[ds:_rs-0x10000+16+5*5],'-'
pushw [es:si+0] [es:si+2]
popw [ss:bp+2] [ss:bp+4]
.sk:
jmp .ww;@b
@@: ;add sp,6
pop bx
add sp,6
sub bl,2
shl bx,8
push bx
; mov ah,9
; mov dx,_bt
; int $21
mov si,_bt-0x10000
call printplain
.modes_ok:
pop bx
mov bp,sp
mov [ss:bp+4*4],bx
popad
gml0:
mov bl,'a'
call getkey ; !! getchar
pre_graph:
or al,al
jz gml00
cmp al,1
je sgml1
;shl ax,4
sub ax,2
mov si,10
mul si
add ax,modes_table;-0x10000
mov si,ax
mov bx,[es:si+6]
mov cx,[es:si+0]
mov dx,[es:si+2]
jmp gml10
sgml1:
; cmp al,9
; jnz gml00
mov bx,0x13
mov cx,640
mov dx,480
push 0x0
pop es
mov [es:0x9000],byte 32
; push 0x1000
; pop es
jmp gml10
gml00:
; cmp al,0xa
; jnz gml02
mov bx,0x12
mov cx,640
mov dx,480
push 0x0
pop es
mov [es:0x9000],byte 4;32
gml10:
push 0x0000
pop es
mov [es:0x9008],bx
mov [es:0x900A],cx
mov [es:0x900C],dx
mov al,[s_vesa.ver-0x10000]
mov [es:0x9034],al
push 0x1000
pop es
mov [s_bpp.bpp-0x10000],'8 '
cmp bx,0x13
je .bppl;nov
mov [s_bpp.bpp-0x10000],'4 '
cmp bx,0x12
je .bppl;nov
; bx - mode : cx - x size : dx - y size
; FIND VESA 2.0 LFB & BPP
mov ax,0x4f01
mov cx,bx
and cx,0xfff
push 0x0000
pop es
mov di,mi;0xa000
int 0x10
; LFB
mov eax,[es:mi.PhysBasePtr];di+0x28]
mov [es:0x9018],eax
; BPP
cmp [es:mi.BitsPerPixel],16
jne .l0
cmp [es:mi.GreenMaskSize],5
jne .l0
mov [es:mi.BitsPerPixel],15
.l0: mov al,[es:mi.BitsPerPixel];di+0x19]
mov [es:0x9000],al
; ---- vbe voodoo
;BytesPerScanLine equ 0x10
push ax
mov ax, [es:mi.BytesPerScanLine];di+BytesPerScanLine]
mov [es:0x9001],ax
pop ax
; -----
.nov:
cmp al,15
jnz .nbpp15
mov [s_bpp.bpp-0x10000],'15'
jmp .bppl
.nbpp15:
cmp al,16
jnz .nbpp16
mov [s_bpp.bpp-0x10000],'16'
jmp .bppl
.nbpp16:
cmp al,24
jnz .nbpp24
mov [s_bpp.bpp-0x10000],'24'
jmp .bppl
.nbpp24:
cmp al,32
jnz .nbpp32
mov [s_bpp.bpp-0x10000],'32'
jmp .bppl
.nbpp32:
mov [s_bpp.bpp-0x10000],'??'
call print
jmp $
.bppl:
mov si,s_bpp-0x10000
call printplain
; FIND VESA 1.2 PM BANK SWITCH ADDRESS
cmp [s_vesa.ver-0x10000],'2'
jb @f
mov ax,0x4f0A
mov bx,0x0
int 0x10
xor eax,eax
xor ebx,ebx
mov ax,es
shl eax,4
mov bx,di
add eax,ebx
movzx ebx,word[es:di]
add eax,ebx
push 0x0000
pop es
mov [es:0x9014],eax
jmp .lp1
@@:
mov dword[es:0x9018],0x000A0000
.lp1:
push 0x1000
pop es
}
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