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The BASIC stub does encode the start address with only 4 digits. Add a check

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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
This commit is contained in:
uz 2011-07-08 08:58:41 +00:00
parent e531e5abd1
commit 49cdfcf5b0
1 changed files with 7 additions and 1 deletions
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8
libsrc/cbm/exehdr.s
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@ -14,6 +14,7 @@
.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')
@ -22,6 +23,11 @@
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"