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;;; fib.asm: A program that generates the fibonacci numbers up to a
;;; very large bound (~UINT64_MAX). Using the registers to store the
;;; pairs of fibonacci numbers, we ensure only a finite amount of
;;; memory is necessary for this program to function, unlike a pure
;;; stack version.
;; Setup entrypoint
global main
main:
;; Setup initial REG[0] = 1 and REG[1] = 1
push.word 1
mov.word 0
push.word 1
mov.word 1
;; Print REG[0] and REG[1]
loopback:
push.byte '\t'
print.char
push.reg.word 0
print.word
push.byte '\n'
print.char
push.byte '\t'
print.char
push.reg.word 1
print.word
push.byte '\n'
print.char
;; REG[0] += REG[1]
push.reg.word 0
push.reg.word 1
plus.word
mov.word 0
;; REG[1] += REG[0]
push.reg.word 0
push.reg.word 1
plus.word
mov.word 1
push.word 12200160415121876738
push.reg.word 1
gte.word
;; Jump to `#`
jump.if.byte loopback
halt
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