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Add patch 1151453 from h-a-l-9000. Improves softmodem and directserial supports. Adds a dummy serial class as well and makes the serial ports runtime changable

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2257
This commit is contained in:
Peter Veenstra 2005-07-30 14:41:31 +00:00
parent 4b6fd3c481
commit a5252330f7
19 changed files with 3329 additions and 1484 deletions
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4
include/bios.h
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@ -72,7 +72,9 @@
/* 0x47b is reserved */
#define BIOS_COM1_TIMEOUT 0x47c
#define BIOS_COM2_TIMEOUT 0x47d
/* 0x47e is reserved */
#define BIOS_COM3_TIMEOUT 0x47e
#define BIOS_COM4_TIMEOUT 0x47f
/* 0x47e is reserved */ //<- why that?
/* 0x47f-0x4ff is unknow for me */
#define BIOS_KEYBOARD_BUFFER_START 0x480
#define BIOS_KEYBOARD_BUFFER_END 0x482