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/geos-common/conio/cputc.s
+++ b/libsrc/geos-common/conio/cputc.s
@@ -21,6 +21,9 @@
 ; note that there are conflicts between control characters and keyboard:
 ; HOME = KEY_ENTER, KEY_HOME = REV_ON,
 ; UPLINE = ?, KEY_UPARROW = GOTOY, ...
+;
+; Important note: The implementation of cputs() relies on the cputc() function
+; not clobbering ptr1. Beware when rewriting or changing this function!

            .export _cputcxy, _cputc
            .import gotoxy, fixcursor