mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-04 22:32:05 +03:00
146 lines
2.2 KiB
NASM
146 lines
2.2 KiB
NASM
use16
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org $100
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;==============================================================================
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macro fopen { ; DX = filename
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mov ax,$3D00
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int $21
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}
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macro fclose { ; BX = file handle
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mov ah,$3E
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int $21
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}
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macro fread { ; BX = file handle, CX = count, DX = buffer
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mov ah,$3F
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int $21
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}
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macro fwrite { ; BX = file handle, CX = count, DX = buffer
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mov ah,$40
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int $21
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}
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;==============================================================================
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; /////////////// char.mt ///////////////
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mov dx,_font1_in
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fopen
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jc exit
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xchg ax,bx
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mov cx,$5000
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mov dx,_buf
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fread
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jc exit
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fclose
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;---------------------------------------
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mov bx,_buf+8
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xor si,si
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mov di,_buf
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mov cl,1
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xor al,al
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cld
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@@:
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cmp byte[bx+si],$20
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je .sp
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or al,cl
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.sp:
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inc si
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shl cl,1
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cmp cl,00100000b
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jne @b
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mov cl,1
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stosb
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xor al,al
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add si,3
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cmp si,8*9
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jb @b
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xor si,si
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add bx,8*10
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cmp di,_buf+$900
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jb @b
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;---------------------------------------
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mov dx,_font1_out
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xor cx,cx
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mov ah,$3C ; create
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int $21
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jc exit
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xchg ax,bx
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mov cx,$900
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mov dx,_buf
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fwrite
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jc exit
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fclose
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; /////////////// char2.mt ///////////////
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mov dx,_font2_in
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fopen
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jc exit
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xchg ax,bx
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mov cx,$6500
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mov dx,_buf
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fread
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jc exit
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fclose
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;---------------------------------------
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mov bx,_buf+10
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mov di,_buf
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cld
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newchar:
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; width of character
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mov al, 8
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cmp byte [bx-4], ' '
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jz @f
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mov al, [bx-4]
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sub al, '0'-1
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@@:
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stosb
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; character itself
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xor si, si
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charloop:
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xor al, al
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mov cl, 1
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@@:
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cmp byte[bx+si],$20
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je .sp2
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or al,cl
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.sp2:
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inc si
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shl cl,1
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cmp cl,10000000b
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jne @b
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stosb
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add si,3
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cmp si,10*9
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jb charloop
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add bx,10*10
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cmp di,_buf+$A00
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jb newchar
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;---------------------------------------
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mov dx,_font2_out
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xor cx,cx
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mov ah,$3C ; create
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int $21
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jc exit
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xchg ax,bx
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mov cx,$A00
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mov dx,_buf
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fwrite
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jc exit
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fclose
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exit:
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ret
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;==============================================================================
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_font1_in db 'char.txt',0
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_font1_out db 'char.mt',0
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_font2_in db 'char2.txt',0
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_font2_out db 'char2.mt',0
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_buf: rb $6500 |