6502/cc65
1
0
Fork 0
mirror of https://github.com/cc65/cc65.git synced 2025-04-10 02:39:26 +00:00
Code Issues Projects Releases Wiki Activity

Swap in LC before destructors, ROM after

Browse Source
This commit is contained in:
Colin Leroy-Mira 2024-01-21 16:50:59 +01:00 committed by Oliver Schmidt
parent 57e65a6bf6
commit f0b5b02966
3 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
doc/apple2.sgml
View File

@ -62,7 +62,7 @@ Special locations:
</descrip><p>
While running <tt/main()/ the Language Card bank 2 is enabled for read access.
However while running module constructors/destructors the Language Card is disabled.
However while running module constructors the Language Card is disabled.
Enabling the Language Card allows to use it as additional memory for cc65
generated code. However code is never automatically placed there. Rather code

2
doc/apple2enh.sgml
View File

@ -63,7 +63,7 @@ Special locations:
</descrip><p>
While running <tt/main()/ the Language Card bank 2 is enabled for read access.
However while running module constructors/destructors the Language Card is disabled.
However while running module constructors the Language Card is disabled.
Enabling the Language Card allows to use it as additional memory for cc65
generated code. However code is never automatically placed there. Rather code

7
libsrc/apple2/crt0.s
View File

@ -40,12 +40,15 @@ _exit: ldx #<exit
lda #>exit
jsr reset ; Setup RESET vector
; Switch in ROM, in case it wasn't already switched in by a RESET.
bit $C082
; Switch in LC bank 2 for R/O in case it was switched out by a RESET.
bit $C080
; Call the module destructors.
jsr donelib
; Switch in ROM.
bit $C082
; Restore the original RESET vector.
exit: ldx #$02
: lda rvsave,x