Import backup from 2005-03-21
This commit is contained in:
josh committed
1 parent
bb8ff09e3f
commit
14792ef954
24 files changed
+671
-197
No files matched your search
+91
-4
@@ -27,6 +27,8 @@ con_move_cursor: ;con_move_cursor(word location)
|
||||
|
||||
con_clear:
|
||||
pusha
|
||||
push es
|
||||
push ds
|
||||
|
||||
mov ax, 0xB800
|
||||
mov es, ax
|
||||
@@ -37,6 +39,8 @@ con_clear:
|
||||
mov [cursor], word 0
|
||||
call con_write_cursor
|
||||
|
||||
pop ds
|
||||
pop es
|
||||
popa
|
||||
ret
|
||||
|
||||
@@ -52,9 +56,7 @@ putstring_loop:
|
||||
or al, al
|
||||
jz putstring_done
|
||||
mov ah, 0x07
|
||||
push ax
|
||||
call con_putc
|
||||
add sp, 2
|
||||
ccall con_putc, ax
|
||||
jmp putstring_loop
|
||||
|
||||
putstring_done:
|
||||
@@ -63,10 +65,93 @@ putstring_done:
|
||||
ret
|
||||
|
||||
|
||||
con_putHex: ;con_putHex(word hexVal)
|
||||
push bp
|
||||
mov bp, sp
|
||||
pusha
|
||||
|
||||
mov ax, [bp + 4]
|
||||
mov cx, 12
|
||||
mov dl, 0
|
||||
con_putHex_loop:
|
||||
push ax
|
||||
shr ax, cl
|
||||
and ax, 0xF
|
||||
cmp ax, 0
|
||||
jnz con_putHex_putc
|
||||
cmp cx, 0
|
||||
jz con_putHex_putc
|
||||
cmp dl, 0
|
||||
jz con_putHex_loop_done
|
||||
con_putHex_putc:
|
||||
add ax, '0'
|
||||
cmp ax, '9'
|
||||
jbe con_putHex_putc_goon
|
||||
add ax, 'A'-'9'-1
|
||||
con_putHex_putc_goon:
|
||||
mov ah, 0x07
|
||||
ccall con_putc, ax
|
||||
mov dl, 1
|
||||
con_putHex_loop_done:
|
||||
pop ax
|
||||
cmp cx, 0
|
||||
jz con_putHex_done
|
||||
sub cx, 4
|
||||
jmp con_putHex_loop
|
||||
|
||||
con_putHex_done:
|
||||
popa
|
||||
pop bp
|
||||
ret
|
||||
|
||||
|
||||
con_putDec: ;con_putDec(word dec)
|
||||
push bp
|
||||
mov bp, sp
|
||||
pusha
|
||||
|
||||
mov ax, [bp + 4]
|
||||
mov cx, 10000
|
||||
mov di, 0
|
||||
|
||||
con_putDec_loop:
|
||||
xor dx, dx
|
||||
div cx ;remainder in dx, quotient in ax
|
||||
mov bx, ax
|
||||
mov ax, dx ;new value is ax % mod
|
||||
push ax
|
||||
mov ax, bx
|
||||
cmp ax, 0
|
||||
jnz con_putDec_putc
|
||||
cmp cx, 1
|
||||
jz con_putDec_putc
|
||||
cmp di, 0
|
||||
jz con_putDec_loop_done
|
||||
con_putDec_putc:
|
||||
add ax, 0x0730
|
||||
ccall con_putc, ax
|
||||
mov di, 1
|
||||
|
||||
con_putDec_loop_done:
|
||||
mov ax, cx
|
||||
xor dx, dx
|
||||
mov bx, 10
|
||||
div bx
|
||||
mov cx, ax
|
||||
pop ax
|
||||
cmp cx, 0
|
||||
jnz con_putDec_loop
|
||||
|
||||
popa
|
||||
pop bp
|
||||
ret
|
||||
|
||||
|
||||
con_putc: ;con_putc(char chr)
|
||||
push bp
|
||||
mov bp, sp
|
||||
pusha
|
||||
push es
|
||||
|
||||
mov ax, 0xB800
|
||||
mov es, ax
|
||||
@@ -79,13 +164,15 @@ con_putc: ;con_putc(char chr)
|
||||
putc_return:
|
||||
mov ax, di
|
||||
mov bl, 160
|
||||
div bl ; quotient in al, remainder in ah
|
||||
div bl ; quotient in al, remainder in ah
|
||||
shr ax, 8
|
||||
sub di, ax
|
||||
add di, 160
|
||||
putc_update:
|
||||
mov [cursor], di
|
||||
call con_write_cursor
|
||||
|
||||
pop es
|
||||
popa
|
||||
pop bp
|
||||
ret
|
||||
|
||||
+158
-14
@@ -5,7 +5,7 @@
|
||||
; Modified: 01/04/05
|
||||
|
||||
%define VIRT_OFFSET 0xC0000000
|
||||
|
||||
%define SIZEOF_RMPARAMS 20
|
||||
%include "rmmod.inc"
|
||||
|
||||
; the bootstrap process will jump us to 0x0:0x5010 so we'd better be ready for it
|
||||
@@ -21,6 +21,10 @@
|
||||
; ecx = where to store real mode parameter table
|
||||
start:
|
||||
jmp 0:start_refreshed
|
||||
|
||||
%include "conio.inc"
|
||||
%include "vesa.inc"
|
||||
|
||||
start_refreshed:
|
||||
mov ax, cs ; 0
|
||||
mov ds, ax
|
||||
@@ -30,30 +34,144 @@ start_refreshed:
|
||||
mov [dat_rmadd], ecx
|
||||
mov [dat_retn], ebx
|
||||
|
||||
mov ebx, ecx ; clear the rm_params
|
||||
mov cx, SIZEOF_RMPARAMS
|
||||
mov ax, 0
|
||||
clear_rmparams_loop:
|
||||
mov [ebx], al
|
||||
inc ebx
|
||||
loop clear_rmparams_loop
|
||||
|
||||
; begin real-mode code initialization, etc...
|
||||
|
||||
call con_clear
|
||||
|
||||
; ccall vesa_get_info, es, vbe_info_block
|
||||
jmp no_vesa
|
||||
ccall vesa_get_info, es, vbe_info_block
|
||||
cmp ax, 0
|
||||
jnzfar no_vesa
|
||||
|
||||
vesa_present:
|
||||
ccall con_putstring, txt_vesa
|
||||
mov ax, [VideoModePtr]
|
||||
mov es, ax
|
||||
mov si, [VideoModePtr + 2]
|
||||
xor ax, ax
|
||||
mov al, [VbeVersion + 1]
|
||||
ccall con_putHex, ax
|
||||
ccall con_putc, '.' | 0x0700
|
||||
xor ax, ax
|
||||
mov al, [VbeVersion]
|
||||
ccall con_putHex, ax
|
||||
ccall con_putc, 10
|
||||
|
||||
xor ax, ax ; clear the scratch mem
|
||||
mov cx, 129
|
||||
mov di, scratch_mem
|
||||
rep stosw
|
||||
|
||||
push ds
|
||||
mov ax, [OemStringPtr + 2]
|
||||
mov si, [OemStringPtr]
|
||||
mov ds, ax
|
||||
mov di, scratch_mem
|
||||
mov cx, 128
|
||||
rep movsw ; and copy the string there for display
|
||||
pop ds
|
||||
|
||||
ccall con_putstring, scratch_mem ; write OEM string
|
||||
ccall con_putc, 10
|
||||
mov ax, [VideoModePtr + 2]
|
||||
mov es, ax
|
||||
mov si, [VideoModePtr]
|
||||
xor dx, dx
|
||||
vesa_mode_loop:
|
||||
mov ax, [es:si] ; get next mode number
|
||||
cmp ax, 0xFFFF
|
||||
jzfar vesa_mode_loop_done
|
||||
ccall vesa_get_mode_info, ds, vbe_mode_info_block, ax
|
||||
cmp ax, 0
|
||||
jnzfar vesa_mode_loop_next
|
||||
|
||||
mov ax, [ModeAttributes]
|
||||
and ax, VESA_MODE_SUPPORTED | VESA_MODE_COLOR | VESA_MODE_GRAPHICS | VESA_MODE_LFB
|
||||
cmp ax, VESA_MODE_SUPPORTED | VESA_MODE_COLOR | VESA_MODE_GRAPHICS | VESA_MODE_LFB
|
||||
jnzfar vesa_mode_loop_next
|
||||
mov al, [BitsPerPixel]
|
||||
cmp al, 15
|
||||
jz vesa_mode_good
|
||||
cmp al, 16
|
||||
jz vesa_mode_good
|
||||
cmp al, 24
|
||||
jz vesa_mode_good
|
||||
cmp al, 32
|
||||
jnzfar vesa_mode_loop_next
|
||||
vesa_mode_good:
|
||||
mov ax, dx
|
||||
add ax, 0x0700 | 'a'
|
||||
ccall con_putc, ax
|
||||
ccall con_putstring, txt_vesa_mode1
|
||||
ccall con_putDec, word [XResolution]
|
||||
ccall con_putc, 'x' | 0x0700
|
||||
ccall con_putDec, word [YResolution]
|
||||
ccall con_putc, 'x' | 0x0700
|
||||
xor ax, ax
|
||||
mov al, [BitsPerPixel]
|
||||
ccall con_putDec, ax
|
||||
ccall con_putstring, txt_vesa_mode2
|
||||
mov ax, [es:si] ; mode number
|
||||
ccall con_putHex, ax
|
||||
ccall con_putc, 10
|
||||
|
||||
mov bx, dx
|
||||
shl bx, 1
|
||||
mov [scratch_mem + bx], ax ; store modes in scratch_mem array
|
||||
inc dx
|
||||
|
||||
vesa_mode_loop_next:
|
||||
add si, 2
|
||||
jmp vesa_mode_loop
|
||||
|
||||
vesa_mode_loop_done:
|
||||
ccall con_putstring, txt_vesa_end
|
||||
|
||||
vesa_get_key_loop:
|
||||
call con_getkey
|
||||
mov ah, 0
|
||||
cmp ax, '0'
|
||||
jz vesa_the_end
|
||||
cmp ax, 'a' ; first choice
|
||||
jb vesa_get_key_loop
|
||||
add dx, 'a'
|
||||
cmp ax, dx ; one past last choice
|
||||
jae vesa_get_key_loop
|
||||
; ok, we have a valid video mode selection
|
||||
sub ax, 'a'
|
||||
shl ax, 1
|
||||
mov bx, ax
|
||||
mov cx, [scratch_mem + bx]
|
||||
ccall vesa_get_mode_info, ds, vbe_mode_info_block, cx
|
||||
or cx, 0x4000 ; enable LFB
|
||||
ccall vesa_set_mode, cx ; turn on mode
|
||||
|
||||
mov ebx, [dat_rmadd] ; pass mode info to kernel
|
||||
mov eax, [PhysBasePtr]
|
||||
mov [ebx + 0], eax
|
||||
xor eax, eax
|
||||
mov al, [BitsPerPixel]
|
||||
mov [ebx + 12], eax
|
||||
mov ax, [XResolution]
|
||||
mov [ebx + 4], eax
|
||||
mov ax, [YResolution]
|
||||
mov [ebx + 8], eax
|
||||
|
||||
jmp vesa_the_end
|
||||
|
||||
|
||||
jmp end_rmmod
|
||||
|
||||
no_vesa:
|
||||
ccall con_putstring, txt_novesa
|
||||
call con_getkey
|
||||
|
||||
|
||||
|
||||
|
||||
vesa_the_end:
|
||||
|
||||
end_rmmod: ; get ready to go back to pmode and return to kernel initialization
|
||||
; call con_getkey
|
||||
mov ebx, [dat_retn]
|
||||
lgdt [gdtrlin32]
|
||||
mov eax, cr0
|
||||
@@ -77,8 +195,6 @@ offset_continue:
|
||||
|
||||
[bits 16]
|
||||
|
||||
%include "conio.inc"
|
||||
|
||||
;-------------------------------------------------------
|
||||
gdtrlin32:
|
||||
dw gdt_endlin32-gdtlin32-1
|
||||
@@ -142,7 +258,10 @@ KERNEL_DATA_BS32 equ $-gdtbs32
|
||||
gdt_endbs32:
|
||||
|
||||
|
||||
txt_vesa: db "VESA found. Please select:", 10, 0
|
||||
txt_vesa: db "VESA found. VBE Version: ", 0
|
||||
txt_vesa_mode1 db ". ", 0
|
||||
txt_vesa_mode2 db ", mode 0x", 0
|
||||
txt_vesa_end: db "Enter the letter of your selection or 0 for console mode:", 0
|
||||
txt_novesa: db "VESA not found, using 80x25 console mode... press any key", 10, 0
|
||||
|
||||
dat_rmadd: dd 0
|
||||
@@ -162,4 +281,29 @@ OemProductName: dd 0
|
||||
OemProductRev: dd 0
|
||||
Reserved: times 478 db 0
|
||||
|
||||
vbe_mode_info_block:
|
||||
ModeAttributes: dw 0
|
||||
WinAAttributes: db 0
|
||||
WinBAttributes: db 0
|
||||
WinGranularity: dw 0
|
||||
WinSize: dw 0
|
||||
WinASegment: dw 0
|
||||
WinBSegment: dw 0
|
||||
WinFuncPtr: dd 0
|
||||
BytesPerScanline: dw 0
|
||||
|
||||
XResolution: dw 0
|
||||
YResolution: dw 0
|
||||
XCharSize: db 0
|
||||
YCharSize: db 0
|
||||
NumberOfPlanes: db 0
|
||||
BitsPerPixel: db 0
|
||||
NumberOfBanks: db 0
|
||||
MemoryModel: db 0
|
||||
BankSize: db 0
|
||||
NumberOfImagePages: db 0
|
||||
Reserved2: times 10 db 0
|
||||
PhysBasePtr: dd 0
|
||||
Reserved3: times 212 db 0
|
||||
|
||||
scratch_mem:
|
||||
+62
-10
@@ -4,30 +4,82 @@
|
||||
; Modified: 01/04/05
|
||||
; real mode vesa functions
|
||||
|
||||
; sample bochs VBE modes:
|
||||
;0x000c6a86 <bogus+ 0>: 0x0100 0x0101 0x0102 0x0103 0x0105 0x0110 0x0111 0x0112
|
||||
;0x000c6a96 <bogus+ 16>: 0x0113 0x0114 0x0115 0x0116 0x0117 0x0118 0x0142 0x0143
|
||||
;0x000c6aa6 <bogus+ 32>: 0x0144 0x0146 0xffff
|
||||
|
||||
%define VESA_MODE_SUPPORTED 0x01
|
||||
%define VESA_MODE_COLOR 0x08
|
||||
%define VESA_MODE_GRAPHICS 0x10
|
||||
%define VESA_MODE_LFB 0x80
|
||||
|
||||
vesa_return: dw 0
|
||||
|
||||
vesa_get_info: ;vesa_get_info(word seg, word offset)
|
||||
push bp
|
||||
mov bp, sp
|
||||
pusha
|
||||
push es
|
||||
push ds
|
||||
|
||||
mov ax, [bp + 4]
|
||||
mov es, ax
|
||||
mov di, [bp + 6]
|
||||
mov ax, 0x4F00
|
||||
int 0x10
|
||||
cmp ax, 0x004F
|
||||
jz vesa_got_info
|
||||
sub ax, 0x004F
|
||||
mov [vesa_return], ax
|
||||
|
||||
mov [vesa_return], word 1
|
||||
jmp vesa_get_info_done
|
||||
|
||||
vesa_got_info:
|
||||
mov [vesa_return], word 0
|
||||
|
||||
vesa_got_info_done:
|
||||
pop ds
|
||||
pop es
|
||||
popa
|
||||
pop bp
|
||||
mov ax, [vesa_return]
|
||||
ret
|
||||
|
||||
|
||||
vesa_return: dw 0
|
||||
vesa_get_mode_info: ;vesa_get_info(word seg, word offset, word mode)
|
||||
push bp
|
||||
mov bp, sp
|
||||
pusha
|
||||
push es
|
||||
push ds
|
||||
|
||||
mov ax, [bp + 4]
|
||||
mov es, ax
|
||||
mov di, [bp + 6]
|
||||
mov cx, [bp + 8]
|
||||
mov ax, 0x4F01
|
||||
int 0x10
|
||||
sub ax, 0x004F
|
||||
mov [vesa_return], ax
|
||||
|
||||
pop ds
|
||||
pop es
|
||||
popa
|
||||
pop bp
|
||||
mov ax, [vesa_return]
|
||||
ret
|
||||
|
||||
|
||||
vesa_set_mode: ;vesa_set_mode(word mode)
|
||||
push bp
|
||||
mov bp, sp
|
||||
pusha
|
||||
push es
|
||||
push ds
|
||||
|
||||
mov bx, [bp + 4]
|
||||
mov ax, 0x4F02
|
||||
int 0x10
|
||||
sub ax, 0x004F
|
||||
mov [vesa_return], ax
|
||||
|
||||
pop ds
|
||||
pop es
|
||||
popa
|
||||
pop bp
|
||||
mov ax, [vesa_return]
|
||||
ret
|
||||
|
||||
Reference in new issue
Block a user