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view lib/alib/prints.as @ 3295:6b7a7b233925 default tip
makefile: Allow PORTS with level1/2 mix
https://sourceforge.net/p/nitros9/feature-requests/10/
author | Tormod Volden <debian.tormod@gmail.com> |
---|---|
date | Tue, 19 Apr 2022 18:12:17 +0200 |
parents | 03f26e88b809 |
children |
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*********************************** * Print a program-embedded, null terminated string to standard out. * OTHER MODULES NEEDED: puts * ENTRY: Null terminated string must follow PRINTS call * eg: LBSR PRINTS * fcc /this is stuff to print/ * fcb $0d * a new line * fcc /more stuff to print/ * fcb $0d,0 the end * lda #xx or whatever.. * * the rest of the program.... * EXIT: CC carry set if error * B error code (if any) nam Print Embedded String to Std. Out ttl Assembler Library Module section .text PRINTS: pshs x,u ldx 4,s get start of string (old return address) tfr x,u copy it loop tst ,u+ advance U to end of string bne loop stu 4,s one past null=return address lbsr PUTS print from orig pos. puls x,u,pc return to caller endsect