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Squeeze 2 bytes out of the startup code

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git-svn-id: svn://svn.cc65.org/cc65/trunk@414 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz
2000-10-30 21:46:45 +00:00
parent 00e858c9de
commit 7c436aec1d
3 changed files with 25 additions and 26 deletions
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16
libsrc/pet/crt0.s
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@@ -54,10 +54,10 @@ Head: .word @Next
; ------------------------------------------------------------------------
; Actual code
ldy #zpspace-1
L1: lda sp,y
sta zpsave,y ; Save the zero page locations we need
dey
ldx #zpspace-1
L1: lda sp,x
sta zpsave,x ; Save the zero page locations we need
dex
bpl L1
; Close open files
@@ -109,10 +109,10 @@ _exit: jsr doatexit ; call exit functions
; Copy back the zero page stuff
ldy #zpspace-1
L2: lda zpsave,y
sta sp,y
dey
ldx #zpspace-1
L2: lda zpsave,x
sta sp,x
dex
bpl L2
; Back to basic