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45 lines
582 B
PHP
45 lines
582 B
PHP
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; Mathematical functions
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;
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; Author: Trans
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; Date: 08.03.2005
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; Compiler: FASM
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; Target: Hunter - MeOS game
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;
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rinit dw 0
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; Randomize of 8 bits
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; In:
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; Out: AL - random value
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random_8:
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push ebx
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push ecx
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xor eax,eax
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mov ax,[rinit]
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cmp ax,0
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jnz rand_loc_00
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mov eax,26
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mov ebx,9
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int 40h
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mov [rinit],ax
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shl eax,16
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shr eax,16
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rand_loc_00:
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mov ecx,8
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rand_loc_01:
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mov bx,ax
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and bx,002Dh
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xor bh,bl
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clc
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jpe rand_loc_01a
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stc
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rand_loc_01a:
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rcr ax,1
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loop rand_loc_01
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mov [rinit],ax
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xor ah,ah
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pop ecx
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pop ebx
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retn
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