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Place the zero page variables into the ZEROPAGE segment

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git-svn-id: svn://svn.cc65.org/cc65/trunk@322 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz
2000-09-07 21:49:13 +00:00
parent 5446245eb4
commit e0a619ff90
7 changed files with 148 additions and 103 deletions
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libsrc/plus4/crt0.s
+19 -13
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@@ -19,19 +19,25 @@
.exportzp tmp1, tmp2, tmp3, tmp4
.exportzp regbank, zpspace
sp = $02 ; stack pointer
sreg = $04 ; secondary register/high 16 bit for longs
regsave = $06 ; slot to save/restore (E)AX into
ptr1 = $0A ;
ptr2 = $0C
ptr3 = $0E
ptr4 = $10
tmp1 = $12
tmp2 = $13
tmp3 = $14
tmp4 = $15
regbank = $16 ; 6 byte register bank
zpspace = $1A ; Zero page space allocated
.zeropage
zpstart = *
sp: .res 2 ; Stack pointer
sreg: .res 2 ; Secondary register/high 16 bit for longs
regsave: .res 2 ; slot to save/restore (E)AX into
ptr1: .res 2
ptr2: .res 2
ptr3: .res 2
ptr4: .res 2
tmp1: .res 1
tmp2: .res 1
tmp3: .res 1
tmp4: .res 1
regbank: .res 6 ; 6 byte register bank
zpspace = * - zpstart ; Zero page space allocated
.code
; ------------------------------------------------------------------------
; BASIC header with a SYS call