mirror of
https://github.com/nathanriggs/AppleIIAsm-Collection.git
synced 2025-02-18 15:30:36 +00:00
9b12b6fd9b
- getting ready for major changes for 0.6.0. - be sure to download the 0.5.0 release to ensure proper functionality, as these rountines will not work together in the SRC or BIN folder during the transition - Beginning to significantly alter documentation
36 lines
986 B
NASM
36 lines
986 B
NASM
*
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*``````````````````````````````*
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* DPRINT (NATHAN RIGGS) *
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* *
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* PRINT A ZERO-TERMINATED *
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* STRING AT A GIVEN ADDRESS. *
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* *
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* INPUT: *
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* *
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* WPAR1 = STRING ADDRESS (2B) *
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* *
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* OUTPUT: *
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* *
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* PRINT STRING TO SCREEN *
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* *
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* DESTROYS: AXYNVBDIZCMS *
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* ^^^^ ^ ^ *
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* *
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* CYCLES: 61+ *
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* SIZE: 27 BYTES *
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*,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,*
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*
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]ADDR1 EQU WPAR1
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*
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DPRINT
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*
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LDY #$00 ; RESET COUNTER
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:LOOP
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LDA (]ADDR1),Y
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BEQ :EXIT ; IF CHAR = $00 THEN EXIT
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JSR COUT1 ; OTHERWISE, PRINT CHAR
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INY ; INCREAS COUNTER
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BNE :LOOP ; IF COUNTER < 256, LOOP
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:EXIT
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RTS
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