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;;; factorial.asm: A program that generates the factorials of each
;;; number from 1 to 24 (24!~=UINT64_MAX). Using the registers to
;;; store `n` and `n!`.
;; Constants
%const(limit) 22 %end
;; 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]: REG[1]`
loopback:
push.byte '\t'
print.char
push.reg.word 0
print.word
push.byte ':'
print.char
push.byte ' '
print.char
push.reg.word 1
print.word
push.byte '\n'
print.char
;; REG[0] += 1
push.reg.word 0
push.word 1
plus.word
mov.word 0
;; REG[1] *= REG[0]
push.reg.word 0
push.reg.word 1
mult.word
mov.word 1
push.word $limit
push.reg.word 0
gte.word
;; Jump to `loopback`
jump.if.byte loopback
halt
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