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Handle errant IRQs as a real BIOS does. Fixes Tandy DAC in Chuck Yeager's Air Combat. Also remove r3263 workaround, as it's no longer needed.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@4009
This commit is contained in:
ripsaw8080 2017-05-01 15:32:29 +00:00
parent 97bb6e4127
commit d6e983b08d
3 changed files with 34 additions and 4 deletions
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include/bios.h
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@ -61,6 +61,7 @@
#define BIOS_VDU_CONTROL 0x465
#define BIOS_VDU_COLOR_REGISTER 0x466
/* 0x467-0x468 is reserved */
#define BIOS_LAST_UNEXPECTED_IRQ 0x46b
#define BIOS_TIMER 0x46c
#define BIOS_24_HOURS_FLAG 0x470
#define BIOS_KEYBOARD_FLAGS 0x471