Array length: Difference between revisions
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Array length is computed at compilation time with the formula: (Array_End-Array). Even though the labels Array and Array_End are both 16-bit values, if their difference fits into 8 bits the assembler will allow you to load it into a register.
<lang 6502asm>start:
LDA #(Array_End-Array) ;evaluates to
RTS
Array:
byte
byte "orange",0
Array_End:</lang>
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