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Use the new declarations from the zeropage include file. In interrupt handlers

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that call C code, we don't need to save the register bank, because the C code
will save it, when needed.


git-svn-id: svn://svn.cc65.org/cc65/trunk@5909 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz
2012-11-04 15:23:05 +00:00
parent 673b982b22
commit dc4e898abd
5 changed files with 36 additions and 33 deletions
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7
libsrc/common/_printf.s
View File

@@ -1,15 +1,16 @@
;
; _printf: Basic layer for all printf type functions.
;
; Ullrich von Bassewitz, 21.10.2000
; Ullrich von Bassewitz, 2000-10-21
;
.include "zeropage.inc"
.export __printf
.import popax, pushax, pusheax, decsp6, push1, axlong, axulong
.import _ltoa, _ultoa
.import _strlower, _strlen
.importzp sp, ptr1, ptr2, tmp1, regbank, sreg
.macpack generic
@@ -750,7 +751,7 @@ HaveArg:
.bss
; Save area for the zero page registers
RegSave: .res 6
RegSave: .res regbanksize
; One character argument for OutFunc
CharArg: .byte 0

40
libsrc/common/interrupt.s
View File

@@ -6,14 +6,31 @@
;
.export _set_irq, _reset_irq
.interruptor clevel_irq, 1 ; Export as low priority IRQ handler
.interruptor clevel_irq, 1 ; Export as low priority IRQ handler
.import popax
.importzp __ZP_START__
.include "zeropage.inc"
.macpack generic
; ---------------------------------------------------------------------------
.data
irqvec: jmp $00FF ; Patched at runtime
; ---------------------------------------------------------------------------
.bss
irqsp: .res 2
zpsave: .res zpsavespace
; ---------------------------------------------------------------------------
.proc _set_irq
; Keep clevel_irq from being called right now
@@ -59,8 +76,8 @@
rts
; Save our zero page locations
@L1: ldx #zpspace-1
@L2: lda sp,x
@L1: ldx #.sizeof(::zpsave)-1
@L2: lda __ZP_START__,x
sta zpsave,x
dex
bpl @L2
@@ -75,9 +92,9 @@
jsr irqvec
; Copy back our zero page content
ldx #zpspace-1
ldx #.sizeof(::zpsave)-1
@L3: ldy zpsave,x
sty sp,x
sty __ZP_START__,x
dex
bpl @L3
@@ -87,16 +104,3 @@
.endproc
; ---------------------------------------------------------------------------
.data
irqvec: jmp $00FF ; Patched at runtime
; ---------------------------------------------------------------------------
.bss
irqsp: .res 2
zpsave: .res zpspace

4
libsrc/common/modload.s
View File

@@ -35,11 +35,11 @@
.include "o65.inc"
.include "modload.inc"
.include "zeropage.inc"
.import pushax, pusha0, push0, push1, decax1
.import _malloc, _free, _bzero
.import __ZP_START__ ; Linker generated
.importzp sp, ptr1, tmp1, regbank
.macpack generic
@@ -58,7 +58,7 @@ TPtr = regbank+4 ; Pointer to module data for relocation
; Save areas and error recovery data
Stack: .byte 0 ; Old stackpointer
RegBankSave: .res 6 ; Save area for register bank
RegBankSave: .res regbanksize ; Save area for register bank
; The header of the o65 file. Since we don't need the first 8 bytes any
; longer, once we've checked them, we will overlay them with other data to