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Last change
on this file since 21787 was 21783, checked in by dmik, 14 years ago |
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Use underscores for symbols defined in .asm as they are cdecl.
IBM VAC seemed to detect they are ASM and not use underscores
when referencing them from C.
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File size:
1.6 KB
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| 1 | /* $Id: os2sel.h,v 1.13 2003-04-10 10:26:23 sandervl Exp $ */
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| 2 | /*
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| 3 | *
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| 4 | * Project Odin Software License can be found in LICENSE.TXT
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| 5 | *
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| 6 | */
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| 7 | #ifndef __OS2SEL_H__
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| 8 | #define __OS2SEL_H__
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| 9 |
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| 10 |
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| 11 | #ifdef __cplusplus
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| 12 | extern "C" {
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| 13 | #endif
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| 14 |
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| 15 |
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| 16 | #ifdef __WATCOMC__
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| 17 | unsigned short GetFS(void);
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| 18 | #pragma aux GetFS = \
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| 19 | "mov ax,fs" \
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| 20 | value [ax] \
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| 21 | parm nomemory;
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| 22 |
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| 23 | void SetFS(unsigned short sel);
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| 24 | #pragma aux SetFS = \
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| 25 | "mov fs,ax" \
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| 26 | parm [ax];
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| 27 |
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| 28 | unsigned short RestoreOS2FS(void);
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| 29 | #pragma aux RestoreOS2FS = \
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| 30 | "mov bx, fs" \
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| 31 | "mov ax, 150bh" \
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| 32 | "mov fs, ax" \
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| 33 | value [bx] \
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| 34 | modify nomemory exact [ax];
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| 35 | #endif
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| 36 |
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| 37 | #ifndef __WATCOMC__
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| 38 | #if defined(__GNUC__)
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| 39 | static inline unsigned short GetFS(void)
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| 40 | {
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| 41 | int __res;
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| 42 | __asm__ __volatile__("mov %%fs, %%eax" : "=a" (__res));
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| 43 | return(__res);
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| 44 | }
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| 45 |
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| 46 | static inline void SetFS(unsigned short sel)
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| 47 | {
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| 48 | __asm__ __volatile__("mov %%eax,%%fs" : : "a" (sel));
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| 49 | }
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| 50 |
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| 51 | static inline short RestoreOS2FS(void)
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| 52 | {
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| 53 | int __res, xx = 0x0150b;
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| 54 |
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| 55 | __asm__ __volatile__(
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| 56 | "mov %%fs,%0 \n\t"
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| 57 | "mov %1,%%fs \n\t"
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| 58 | : "=&r" (__res) : "r" (xx));
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| 59 | return(__res);
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| 60 | }
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| 61 |
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| 62 | static inline short SetReturnFS(unsigned short sel)
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| 63 | {
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| 64 | int __res;
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| 65 |
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| 66 | __asm__ __volatile__(
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| 67 | "mov %%fs,%0 \n\t"
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| 68 | "mov %%eax,%%fs \n\t"
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| 69 | : "=&r" (__res) : "a" (sel));
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| 70 | return(__res);
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| 71 | }
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| 72 |
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| 73 | #else
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| 74 |
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| 75 | unsigned short _System GetFS (void);
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| 76 | unsigned short _System RestoreOS2FS(void);
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| 77 | void _System SetFS (unsigned short selector);
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| 78 | unsigned short _System SetReturnFS (unsigned short selector);
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| 79 | #endif
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| 80 | #endif
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| 81 |
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| 82 | //SvL: Checks if thread FS & exception structure are valid
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| 83 | int _System CheckCurFS(void);
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| 84 |
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| 85 |
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| 86 | #ifdef __cplusplus
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| 87 | }
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| 88 | #endif
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| 89 |
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| 90 |
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| 91 | #endif //__OS2SEL_H__
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