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Straighten checking of the initialized flag in both, the C64 and C128

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versions of rs232.s.
New include file common/rs232.inc, use the constants from this file instead
of defining them separately in each platform specific rs232 module.


git-svn-id: svn://svn.cc65.org/cc65/trunk@1208 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz
2002-03-25 06:06:52 +00:00
parent f709fd679b
commit 7d11fa012c
4 changed files with 128 additions and 146 deletions
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21
libsrc/common/rs232.inc Normal file
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@@ -0,0 +1,21 @@
;
; rs232.inc
;
; (C) Copyright 2002 Ullrich von Bassewitz (uz@cc65.org)
;
; Assembler include file that makes the constants and structures from rs232.h
; available for asm code.
; Error codes returned by all functions
RS_ERR_OK = $00 ; Not an error - relax
RS_ERR_NOT_INITIALIZED = $01 ; Module not initialized
RS_ERR_BAUD_TOO_FAST = $02 ; Cannot handle baud rate
RS_ERR_BAUD_NOT_AVAIL = $03 ; Baud rate not available
RS_ERR_NO_DATA = $04 ; Nothing to read
RS_ERR_OVERFLOW = $05 ; No room in send buffer