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Amiga Plus 1997 #3
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Amiga Plus CD - 1997 - No. 03.iso
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pd
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programmierung
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alienbreed3d2_src
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cheesesauce
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los.s
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Text File
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1997-01-31
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722b
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75 lines
VALS:
dc.w 0
;2
dc.w 0
;4
dc.w 0
;6
dc.w 0
;8
dc.l 0
;12
dc.w 0
;14
START:
lea VALS(pc),a0
move.w (a0),d0
move.w 2(a0),d1
move.w 4(a0),d2
move.w 6(a0),d3
move.l 8(a0),a1
sub.w d0,d2 ;dx
bne.s .okzer
cmp.w d1,d3
beq nothingin
.okzer
sub.w d1,d3 ;dy
move.w d2,d4
bge.s .okpos1
neg.w d4
.okpos1:
move.w d3,d5
bge.s .okpos2
neg.w d5
.okpos2:
cmp.w d4,d5
bge.s YBIG
XBIG:
move.w d4,d5
YBIG:
move.w d5,d7
move.w d5,d6
checkthing:
move.w d2,d4
move.w d3,d5
muls d7,d4
muls d7,d5
divs d6,d4
divs d6,d5
add.w d0,d4
add.w d1,d5
asl.w #5,d5
add.w d4,d5
tst.b (a1,d5.w)
bne.s somethingin
dbra d7,checkthing
nothingin:
st 12(a0)
rts
somethingin:
clr.b 12(a0)
rts