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| Rev | Author | Line No. | Line |
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| 42 | pj | 1 | /* Project: OSLib |
| 2 | * Description: The OS Construction Kit |
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| 3 | * Date: 1.6.2000 |
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| 4 | * Idea by: Luca Abeni & Gerardo Lamastra |
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| 5 | * |
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| 6 | * OSLib is an SO project aimed at developing a common, easy-to-use |
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| 7 | * low-level infrastructure for developing OS kernels and Embedded |
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| 8 | * Applications; it partially derives from the HARTIK project but it |
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| 9 | * currently is independently developed. |
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| 10 | * |
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| 11 | * OSLib is distributed under GPL License, and some of its code has |
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| 12 | * been derived from the Linux kernel source; also some important |
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| 13 | * ideas come from studying the DJGPP go32 extender. |
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| 14 | * |
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| 15 | * We acknowledge the Linux Community, Free Software Foundation, |
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| 16 | * D.J. Delorie and all the other developers who believe in the |
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| 17 | * freedom of software and ideas. |
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| 18 | * |
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| 19 | * For legalese, check out the included GPL license. |
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| 20 | */ |
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| 21 | |||
| 22 | /* For accessing BIOS calls returning in Real Mode, or using VM86 */ |
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| 23 | |||
| 24 | #ifndef __LL_I386_X_BIOS_H__ |
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| 25 | #define __LL_I386_X_BIOS_H__ |
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| 26 | |||
| 27 | #include <ll/i386/defs.h> |
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| 28 | BEGIN_DEF |
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| 29 | |||
| 30 | #include <ll/i386/hw-data.h> |
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| 31 | #include <ll/i386/hw-instr.h> |
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| 32 | |||
| 33 | #define DOS_OFF(x) ((DWORD)(x) & 0x000F) |
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| 34 | #define DOS_SEG(x) (((DWORD)(x) & 0xFFFF0) >> 4) |
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| 35 | |||
| 36 | typedef union x_regs16 { |
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| 37 | struct { |
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| 38 | WORD ax __attribute__ ((packed)); |
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| 39 | WORD bx __attribute__ ((packed)); |
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| 40 | WORD cx __attribute__ ((packed)); |
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| 41 | WORD dx __attribute__ ((packed)); |
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| 42 | WORD si __attribute__ ((packed)); |
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| 43 | WORD di __attribute__ ((packed)); |
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| 44 | WORD cflag __attribute__ ((packed)); |
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| 45 | WORD _pad __attribute__ ((packed)); |
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| 46 | } x __attribute__ ((packed)); |
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| 47 | struct { |
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| 48 | BYTE al,ah __attribute__ ((packed)); |
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| 49 | BYTE bl,bh __attribute__ ((packed)); |
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| 50 | BYTE cl,ch __attribute__ ((packed)); |
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| 51 | BYTE dl,dh __attribute__ ((packed)); |
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| 52 | } h __attribute__ ((packed)); |
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| 53 | } X_REGS16; |
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| 54 | |||
| 55 | typedef struct x_sregs16 { |
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| 56 | WORD es __attribute__ ((packed)); |
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| 57 | WORD cs __attribute__ ((packed)); |
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| 58 | WORD ss __attribute__ ((packed)); |
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| 59 | WORD ds __attribute__ ((packed)); |
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| 60 | } X_SREGS16; |
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| 61 | |||
| 62 | typedef struct { |
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| 63 | /* The GDT linear address inheritable from X */ |
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| 64 | DWORD GDT_base; |
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| 65 | /* These are used for BIOS calling */ |
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| 66 | X_REGS16 ir; |
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| 67 | X_REGS16 or; |
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| 68 | X_SREGS16 sr; |
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| 69 | DWORD irqno; |
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| 70 | /* This is the X version */ |
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| 71 | DWORD ver; |
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| 72 | } X_CALLBIOS; |
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| 73 | |||
| 74 | X_CALLBIOS * x_bios_address(void); |
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| 75 | void X_meminfo(LIN_ADDR *b1,DWORD *s1,LIN_ADDR *b2,DWORD *s2); |
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| 76 | void X_callBIOS(int service,X_REGS16 *in,X_REGS16 *out,X_SREGS16 *s); |
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| 77 | void vm86_init(); |
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| 78 | TSS *vm86_get_tss(void); |
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| 79 | int vm86_callBIOS(int service,X_REGS16 *in,X_REGS16 *out,X_SREGS16 *s); |
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| 80 | |||
| 81 | END_DEF |
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| 82 | |||
| 83 | #endif |