mirror of https://github.com/nmlgc/ReC98.git
52 lines
988 B
NASM
52 lines
988 B
NASM
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public SCOREDAT_DECODE
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scoredat_decode proc near
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@@byte = byte ptr -1
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enter 2, 0
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push si
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mov si, scoredat_section_t.score
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jmp short @@1_decode_more?
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; ---------------------------------------------------------------------------
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@@1_decode_loop:
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mov al, byte ptr _hi+1[si]
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mov [bp+@@byte], al
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mov al, _hi.key2
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ror [bp+@@byte], 3
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xor [bp+@@byte], al
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mov al, byte ptr _hi+0[si]
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mov dl, _hi.key1
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add dl, [bp+@@byte]
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add al, dl
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mov byte ptr _hi+0[si], al
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inc si
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@@1_decode_more?:
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cmp si, size scoredat_section_t - 1
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jl short @@1_decode_loop
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mov al, _hi.key1
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add byte ptr _hi+0[si], al
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xor cx, cx
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mov si, scoredat_section_t.score
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jmp short @@1_sum_more?
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; ---------------------------------------------------------------------------
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@@1_sum_loop?:
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mov al, byte ptr _hi+0[si]
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mov ah, 0
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add cx, ax
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inc si
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@@1_sum_more?:
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cmp si, size scoredat_section_t
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jl short @@1_sum_loop?
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mov al, byte ptr _hi.sum
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sub al, cl
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@@ret:
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pop si
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leave
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retn
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scoredat_decode endp
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