XDECAY

Convert a string into number

A et Y contains the ptr of the string

XDECAY returns the value (16 bits) in AY and X contains the length of the decimal number provided in the input

lda     #<mystring
ldy     #>mystring
BRK_KERNEL XDECAY

; A and Y contains the 16 bits value
; X contains the length of chars in mystring
rts

mystring:
  .asciiz "125"

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Last update: 2022-11-23