mirror of
https://github.com/cc65/cc65.git
synced 2024-10-30 12:28:25 +00:00
49cdfcf5b0
so the linker will not generate an invalid header for program files with larger start addresses. git-svn-id: svn://svn.cc65.org/cc65/trunk@5074 b7a2c559-68d2-44c3-8de9-860c34a00d81
34 lines
1.2 KiB
ArmAsm
34 lines
1.2 KiB
ArmAsm
;
|
|
; Ullrich von Bassewitz, 2010-11-14
|
|
;
|
|
; This module supplies a small BASIC stub program that jumps to the machine
|
|
; language code that follows it using SYS.
|
|
;
|
|
|
|
; The following symbol is used by linker config to force the module
|
|
; to get included into the output file
|
|
.export __EXEHDR__: absolute = 1
|
|
|
|
.segment "EXEHDR"
|
|
|
|
.addr Next
|
|
.word .version ; Line number
|
|
.byte $9E ; SYS token
|
|
; .byte <(((Start / 10000) .mod 10) + '0')
|
|
.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
|
|
Start:
|
|
|
|
; If the start address is larger than 4 digits, the header generated above
|
|
; will not contain the highest digit. Instead of wasting one more digit that
|
|
; is almost never used, check it at link time and generate an error so the
|
|
; user knows something is wrong.
|
|
|
|
.assert (Start < 10000), error, "Start address too large for generated BASIC stub"
|
|
|
|
|