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| 1 | /* $Id: asmutils.h,v 1.4 2000-01-24 18:18:59 bird Exp $
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| 2 | *
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| 3 | * Assembly utilities.
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| 4 | *
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| 5 | * Copyright (c) 1998-1999 knut st. osmundsen
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| 6 | *
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| 7 | * Project Odin Software License can be found in LICENSE.TXT
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| 8 | *
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| 9 | */
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| 10 | #ifndef _asmutils_h_
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| 11 | #define _asmutils_h_
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| 12 |
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| 13 | #ifdef __cplusplus
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| 14 | extern "C" {
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| 15 | #endif
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| 16 |
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| 17 | extern unsigned short _System GetCS(void);
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| 18 | extern unsigned short _System GetDS(void);
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| 19 | extern unsigned short _System GetES(void);
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| 20 | extern unsigned short _System GetFS(void);
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| 21 | extern unsigned short _System GetGS(void);
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| 22 | extern unsigned short _System GetSS(void);
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| 23 |
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| 24 | extern void _System DisableInterrupts(void); /* uniprocessor only */
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| 25 | extern void _System EnableInterrupts(void); /* uniprocessor only */
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| 26 |
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| 27 | #if 0
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| 28 | //extern void _System Int3(void);
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| 29 | extern int _System Int3(void);
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| 30 | #else
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| 31 | #ifdef __GNUC__
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| 32 | #define _Inline static inline
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| 33 | #define __interrupt(n) ({ __asm__ __volatile__ ("int" #n "\n\tnop"); })
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| 34 | #else
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| 35 | #include <builtin.h>
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| 36 | #endif
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| 37 | #define Int3() __interrupt(3)
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| 38 | #endif
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| 39 |
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| 40 | //Negative offsets don't work yet?
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| 41 | extern void __stdcall memmov(void *p, signed int off, unsigned int len);
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| 42 |
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| 43 | #ifdef __cplusplus
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| 44 | }
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| 45 | #endif
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| 46 | #endif
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| 47 |
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