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The X-Philes (2nd Revision)
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The X-Philes Number 1 (1995).iso
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hp48_2
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patterns.s
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Text File
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1990-10-10
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904b
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58 lines
; Produce patterns on the HP48SX display.
swap.a c,d0 ; Save d0, d1
push.a c
swap.a c,d1
push.a c
; Now we can manipulate the screen
move.p5 0x7097c,a
move.p5 2176,c
add.a a,c
move.a c,r1 ; r1 is stopping address
move.p2 0xff, a
move.w a,r2 ; r2 is value to store
move.p5 256,a
move.a a,r3 ; r3 is global count
outer: ; Outer loop
move.p5 0x7097c,a
move.a a,r0 ; r0 is current address
lupe:
move.a r0,a ; Store value
move.a a,d0
move.a r2,a
move.2 a,@d0
; Increment address
move.a r0,a
move.a r1,c
inc.a a
inc.a a
move.a a,r0
; Loop
brgt.a c,a,lupe
; Change pattern
move.b r2,a
dec.b a
move.b a,r2
; Outer loop
move.a r3,a
dec.a a
move.a a,r3
brnz.a a,outer
; return to the next RPL Instruction
pop.a c
swap.a c,d1
pop.a c
swap.a c,d0
move.a @d0,a
add.a 5,d0
jump @a