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Now that we reduce the size of the RAM memory area by the stacksize in the linker configuration we need to add the stacksize to end of the RAM area when setting the initial stack pointer in the startup code.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@4822 b7a2c559-68d2-44c3-8de9-860c34a00d81
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ol.sc
2010-10-02 10:37:20 +00:00
parent eef8ecc74d
commit d1f5b74f01
6 changed files with 19 additions and 15 deletions
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5
libsrc/c64/crt0.s
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@@ -10,6 +10,7 @@
.import RESTOR, BSOUT, CLRCH
.import __INTERRUPTOR_COUNT__
.import __RAM_START__, __RAM_SIZE__ ; Linker generated
.import __STACKSIZE__ ; Linker generated
.include "zeropage.inc"
.include "c64.inc"
@@ -71,9 +72,9 @@ L1: lda sp,x
tsx
stx spsave ; Save the system stack ptr
lda #<(__RAM_START__ + __RAM_SIZE__)
lda #<(__RAM_START__ + __RAM_SIZE__ + __STACKSIZE__)
sta sp
lda #>(__RAM_START__ + __RAM_SIZE__)
lda #>(__RAM_START__ + __RAM_SIZE__ + __STACKSIZE__)
sta sp+1 ; Set argument stack ptr
; If we have IRQ functions, chain our stub into the IRQ vector