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Changed the startup module and the linker config for the Commodore PET to use

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the common loadaddr and exehdr modules.


git-svn-id: svn://svn.cc65.org/cc65/trunk@4873 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz 2010-11-17 13:27:43 +00:00
parent 7252f071a2
commit 9a9cea5a61
2 changed files with 17 additions and 29 deletions
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16
libsrc/pet/crt0.s
View File

@ -14,22 +14,6 @@
.include "pet.inc" .include "pet.inc"
.include "../cbm/cbm.inc" .include "../cbm/cbm.inc"
; ------------------------------------------------------------------------
; BASIC header with a SYS call
.segment "EXEHDR"
.word Head ; Load address
Head: .word @Next
.word .version ; Line number
.byte $9E ; SYS token
.byte <(((Start / 1000) .mod 10) + '0')
.byte <(((Start / 100) .mod 10) + '0')
.byte <(((Start / 10) .mod 10) + '0')
.byte <(((Start / 1) .mod 10) + '0')
.byte $00 ; End of BASIC line
@Next: .word 0 ; BASIC end marker
; ------------------------------------------------------------------------ ; ------------------------------------------------------------------------
; Startup code ; Startup code

30
src/ld65/cfg/pet.cfg
View File

@ -1,22 +1,26 @@
SYMBOLS { SYMBOLS {
__LOADADDR__: type = import;
__EXEHDR__: type = import;
__STACKSIZE__: type = weak, value = $0800; # 2k stack __STACKSIZE__: type = weak, value = $0800; # 2k stack
} }
MEMORY { MEMORY {
ZP: file = "", define = yes, start = $0055, size = $001A; ZP: file = "", define = yes, start = $0055, size = $001A;
HEADER: file = %O, start = $03FF, size = $000E; LOADADDR: file = %O, start = $03FF, size = $0002;
RAM: file = %O, start = $040D, size = $7BF3 - __STACKSIZE__; HEADER: file = %O, start = $0401, size = $000C;
RAM: file = %O, start = $040D, size = $7BF3 - __STACKSIZE__;
} }
SEGMENTS { SEGMENTS {
EXEHDR: load = HEADER, type = ro; LOADADDR: load = LOADADDR, type = ro;
STARTUP: load = RAM, type = ro; EXEHDR: load = HEADER, type = ro;
LOWCODE: load = RAM, type = ro, optional = yes; STARTUP: load = RAM, type = ro;
INIT: load = RAM, type = ro, define = yes, optional = yes; LOWCODE: load = RAM, type = ro, optional = yes;
CODE: load = RAM, type = ro; INIT: load = RAM, type = ro, define = yes, optional = yes;
RODATA: load = RAM, type = ro; CODE: load = RAM, type = ro;
DATA: load = RAM, type = rw; RODATA: load = RAM, type = ro;
ZPSAVE: load = RAM, type = bss; DATA: load = RAM, type = rw;
BSS: load = RAM, type = bss, define = yes; ZPSAVE: load = RAM, type = bss;
ZEROPAGE: load = ZP, type = zp; BSS: load = RAM, type = bss, define = yes;
ZEROPAGE: load = ZP, type = zp;
} }
FEATURES { FEATURES {
CONDES: segment = INIT, CONDES: segment = INIT,