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@label memset
; sets a specified number of words in memory to a specified value
; parameters: RA = offset (offset in memory to start at)
; RB = n (number of words to set)
; RC = val (value to set the words to)
; returns: void
stack_stash RD RE
ldi 0 RD ; RD := i (counter), initially 0
@label memset_loop
subi RB RD RE ; RE := n – i (unused value)
bri zero memset_done ; exit the loop
add RA RD RE ; RE := RA + i (address of the word to set)
str RC RE ; set the word at address RE to value in RC
inc RD ; i := i + 1
@label memset_done
stack_restore RD RE
return
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