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L1P7.M
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1994-02-24
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2KB
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108 lines
;▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
; DATA
;▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
align 4
d7cspr dd cspr16
d7csprtbl dd cspr16,cspr0a,cspr17
d7x dd 0
d7ecc dw 4040h
d7eccd dw 0ffffh
d7cspri db 0
d7ecccntr db 3
d7xd db 2
d7phase db 0
;▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
; CODE
;▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒
;═════════════════════════════════════════════════════════════════════════════
p70:
mov eax,d7x
movsx ebx,d7xd
add eax,ebx
mov d7x,eax
jz short p7f0
cmp eax,470
jb short p7f1
p7f0:
neg bl
mov d7xd,bl
movzx eax,d7cspri
inc al
cmp al,3
jb short p7f6
xor al,al
p7f6:
mov d7cspri,al
mov eax,d7csprtbl[eax*4]
mov d7cspr,eax
jmp setnext
p7f1:
mov cx,d7ecc
mov bx,d7eccd
add cl,bl
cmp cl,10h
je short p7f2
cmp cl,40h
jne short p7f3
p7f2:
neg bl
p7f3:
dec d7ecccntr
jnz short p7f5
mov d7ecccntr,3
add ch,bh
cmp ch,10h
je short p7f4
cmp ch,40h
jne short p7f5
p7f4:
neg bh
p7f5:
mov d7ecc,cx
mov d7eccd,bx
mov eax,40h
sub al,cl
imul ebp,eax,100
add ebp,_vidptr
mov edx,703c5h
mov ebx,offset sincos0
mov bl,d7phase
add bl,5
mov d7phase,bl
p7l0:
movzx eax,byte ptr [ebx]
mul cl
shr eax,7
imul edi,eax,100
add bl,40h
movzx eax,byte ptr [ebx]
mul ch
shr eax,7
add eax,d7x
sub eax,128
cmp eax,340
jae short p7l0c
mov esi,eax
sar eax,2
add edi,eax
lea edi,[edi+ebp+100*26-5]
and esi,3
mov al,vidbittbl2[esi]
call d7cspr
p7l0c:
add bl,32-40h
sub edx,10000h
jnc p7l0
ret