mirror of https://github.com/nmlgc/ReC98.git
46 lines
648 B
NASM
46 lines
648 B
NASM
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public __mbcjmstojis
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__mbcjmstojis proc DIST
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@@c = word ptr 2 + dPtrSize
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push bp
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mov bp, sp
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push si
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push di
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mov ax, [bp+@@c]
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cmp ah, 81h
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jb short @@_invalid_jms
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cmp ah, 0A0h
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jb short @@_ok_H
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cmp ah, 0E0h
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jb short @@_invalid_jms
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cmp ah, 0F0h
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jnb short @@_invalid_jms
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@@_ok_H:
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cmp al, 40h
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jb short @@_invalid_jms
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cmp al, 0FDh
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jnb short @@_invalid_jms
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cmp al, 7Fh
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jz short @@_invalid_jms
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cmp al, 80h
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adc al, 61h
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jb short @@_1
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sub al, 0A2h
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@@_1:
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rcl ah, 1
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and ah, 7Fh
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add ax, 1F21h
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jmp short @@_rts
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@@_invalid_jms:
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xor ax, ax
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@@_rts:
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pop di
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pop si
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pop bp
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ret
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__mbcjmstojis endp
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