Rewrote cbm_open and cbm_read in assembler saving about 80 bytes total.

git-svn-id: svn://svn.cc65.org/cc65/trunk@1318 b7a2c559-68d2-44c3-8de9-860c34a00d81
2002-06-22 10:58:24 +00:00
parent 74b9e4831a
commit 574ac2393b
7 changed files with 195 additions and 63 deletions
--- a/libsrc/cbm/c_open.s
+++ b/libsrc/cbm/c_open.s
@@ -12,4 +12,5 @@ _cbm_k_open:
 	jsr	OPEN
 	bcs	@NotOk
        lda     #0
-@NotOk:	rts
+@NotOk:	ldx     #0              ; Clear high byte
+        rts