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Use the .max function to calculate the backup space.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@4584 b7a2c559-68d2-44c3-8de9-860c34a00d81
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uz 2010-02-11 18:56:47 +00:00
parent 61b69316c5
commit 8bae793f48
1 changed files with 5 additions and 10 deletions
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15
libsrc/c64/c64-c256k.s
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@ -89,24 +89,19 @@ done: stx $01
.reloc .reloc
.endproc .endproc
; Since the functions above are copied to $200, the current contents of this
; memory area must be saved into backup storage. Calculate the amount of
; space necessary.
.if .sizeof (c256kcopycode) > .sizeof (c256kcheckcode)
backupspace = .sizeof (c256kcopycode)
.else
backupspace = .sizeof (c256kcheckcode)
.endif
.bss .bss
curpage: .res 2 ; Current page number curpage: .res 2 ; Current page number
curbank: .res 1 ; Current bank curbank: .res 1 ; Current bank
backup: .res backupspace ; Backup area of data in the location
; where the copy and check routines will be
window: .res 256 ; Memory "window" window: .res 256 ; Memory "window"
; Since the functions above are copied to $200, the current contents of this
; memory area must be saved into backup storage. Allocate enough space.
backup: .res .max (.sizeof (c256kcopycode), .sizeof (c256kcheckcode))
.code .code
; ------------------------------------------------------------------------ ; ------------------------------------------------------------------------