37 lines
618 B
NASM
37 lines
618 B
NASM
CPU 8086
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chunksize equ 0x20
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_start:
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push bp
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mov bp, sp
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sub sp, 8
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mov [bp-2], word chunksize ; recv size
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mov [bp-4], word 0xf000 ; recv addr
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mov [bp-6], word 0x0001 ; send size
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mov [bp-8], word 0x7000 ; send addr
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mov bx, [bp-8]
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mov [bx], byte 0x42
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l0:
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cmp word [bp-4], 0xf400
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jb l1
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add sp, 8
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pop bp
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ret
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l1:
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push word [bp-2]
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push word [bp-4]
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mov ah, 0x05
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int 0x80
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add sp, 4
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push word [bp-6]
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push word [bp-8]
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mov ah, 0x06
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int 0x80
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add sp, 4
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add word [bp-4], chunksize
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mov cx, 0x200
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l2: dec cx
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jnz l2
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jmp l0
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