A few minor 65C02 optimizations.

git-svn-id: svn://svn.cc65.org/cc65/trunk@3944 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-02-22 15:39:19 +00:00
parent a0cd736adb
commit 3c168b4323
4 changed files with 40 additions and 16 deletions
--- a/libsrc/runtime/stkchk.s
+++ b/libsrc/runtime/stkchk.s
@@ -21,6 +21,7 @@

 	; Use macros for better readability
 	.macpack	generic
+        .macpack        cpu


 ; ----------------------------------------------------------------------------
@@ -38,7 +39,11 @@
     	lda  	sp+1
     	sta  	initialsp+1
     	sbc  	#>__STACKSIZE__
-     	add  	#1	 		; Add 256 bytes safety area
+.if (.cpu .bitand ::CPU_ISET_65SC02)
+       	ina                     ; Add 256 bytes safety area
+.else
+       	add    	#1     	        ; Add 256 bytes safety area
+.endif
     	sta  	lowwater+1
     	rts