String length: Difference between revisions
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=={{header|6502 Assembly}}==
{{trans|Z80 Assembly}}
Most 6502-based computers predate Unicode, so only byte length will be demonstrated for now.
<lang 6502asm>GetStringLength: ;$00 and $01 make up the pointer to the string's base address.
;(Of course, any two consecutive zero-page memory locations can fulfill this role.)
LDY #0 ;Y doubles as the pointer to the chars in the string and our length counter
loop_getStringLength:
LDA ($00),y
BEQ exit
INY
JMP loop_getStringLength
exit:
RTS ;string length is now loaded into Y.</lang>
=={{header|4D}}==
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