Add comments to the cputs() and cputc() sources about the former relying on

the latter not to clobber ptr1.
2025-07-04 11:20:35 +02:00
parent 29f7ab3809
commit 947eecb65c
23 changed files with 50 additions and 1 deletions
--- a/libsrc/conio/cputs.s
+++ b/libsrc/conio/cputs.s
@@ -22,6 +22,10 @@ _cputsxy:
 _cputs: sta     ptr1            ; Save s
        stx     ptr1+1

+; Important note: The implementation below relies on the _cputc() function not
+; clobbering ptr1. This might not be the case when rewriting this function so
+; beware!
+
 L0:
 .if .cap(CPU_HAS_ZPIND)
        lda     (ptr1)          ; (5)