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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
This commit is contained in:
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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44
libsrc/apple2/crt0.s
View File

@ -15,25 +15,33 @@
; Define and export the ZP variables for the C64 runtime
.exportzp sp, sreg, regsave
.exportzp ptr1, ptr2, ptr3, ptr4
.exportzp tmp1, tmp2, tmp3, tmp4
.exportzp regbank, zpspace
.exportzp ptr1, ptr2, ptr3, ptr4
.exportzp tmp1, tmp2, tmp3, tmp4
.exportzp regbank, zpspace
; These zero page entries overlap with the sweet-16 registers.
; must be changed if sweet-16 is to be supported
sp = $00 ; stack pointer
sreg = $02 ; secondary register/high 16 bit for longs
regsave = $04 ; slot to save/restore (E)AX into
ptr1 = $08 ;
ptr2 = $0A
ptr3 = $0C
ptr4 = $0E
tmp1 = $10
tmp2 = $11
tmp3 = $12
tmp4 = $13
regbank = $14 ; 6 byte register bank
zpspace = $1A ; Zero page space allocated
; These zero page entries overlap with the sweet-16 registers in
; the standard apple2 linker config. They must be changed if sweet-16
; is to be supported
.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
; ------------------------------------------------------------------------
; Actual code

47
libsrc/atari/crt0.s
View File

@ -26,20 +26,27 @@
.exportzp tmp1, tmp2, tmp3, tmp4
.exportzp fntemp, regbank, zpspace
sp = $D2 ; (2bytes) stack pointer
sreg = $D4 ; (2bytes) secondary register/high 16 bit for longs
regsave = $D6 ; (4bytes) slot to save/restore (E)AX into
ptr1 = $DA ; (2bytes)
ptr2 = $DC ; (2bytes)
ptr3 = $DE ; (2bytes)
ptr4 = $E0 ; (2bytes)
tmp1 = $E2 ; (1byte)
tmp2 = $E3 ; (1byte)
tmp3 = $E4 ; (1byte)
tmp4 = $E5 ; (1byte)
fntemp = $E6 ; (2bytes) pointer to file name
regbank = $E8 ; (6bytes) 6 byte register bank
zpspace = $EE - sp ; 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
fntemp: .res 2 ; Pointer to file name
regbank: .res 6 ; 6 byte register bank
zpspace = * - zpstart ; Zero page space allocated
.code
; ------------------------------------------------------------------------
; EXE header
@ -86,12 +93,12 @@ L1: lda sp,y
sta appmsav+1
jsr getmemtop ; adjust for graphics mode to use
sta sp
sta APPMHI
stx sp+1 ; Set argument stack ptr
stx APPMHI+1
; set left margin to 0
lda LMARGN
@ -104,7 +111,7 @@ L1: lda sp,y
ldx SHFLOK
stx old_shflok
sta SHFLOK
; Initialize the heap
jsr __hinit
@ -160,7 +167,7 @@ _exit: jsr doatexit ; call exit functions
sta SHFLOK
; restore APPMHI
lda appmsav
sta APPMHI
lda appmsav+1
@ -259,9 +266,9 @@ grmemusage:
; 220 GRAPHICS 0
; 230 FOR I=0 TO 31:PRINT #1;I;":",G(I);" - ";G(0)-G(I):NEXT I
; 240 CLOSE #1
; 999 END
; 999 END
; 1000 VAL=PEEK(741)+256*PEEK(742)
; 1010 RETURN
; 1010 RETURN
.bss

32
libsrc/c128/crt0.s
View File

@ -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

32
libsrc/c64/crt0.s
View File

@ -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

32
libsrc/cbm610/crt0.s
View File

@ -25,19 +25,25 @@
.exportzp crtc, sid, IPCcia, cia, acia, tpi1, tpi2
.exportzp ktab1, ktab2, ktab3, ktab4, time, RecvBuf, SendBuf
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 and a small BASIC program. Since it is not possible to start

32
libsrc/pet/crt0.s
View File

@ -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

32
libsrc/plus4/crt0.s
View File

@ -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