poor man's _toascii routine, contributed by Fatih Aygun

git-svn-id: svn://svn.cc65.org/cc65/trunk@4477 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-11-23 21:35:33 +00:00
parent 314984aae4
commit 5a593b8105
2 changed files with 20 additions and 0 deletions
--- a/libsrc/atari/toascii.s
+++ b/libsrc/atari/toascii.s
@@ -0,0 +1,19 @@
+;
+; unsigned char __fastcall__ toascii (unsigned char c);
+; /* Convert a target specific character to ascii */
+;
+
+.export _toascii
+
+.proc _toascii
+
+; Clear the inverse video bit
+	and	#$7F
+
+; X must be zero on return
+	ldx     #0
+
+; Done!
+	rts
+
+.endproc