1 /* ----------------------------------------------------------------------- *
3 * Copyright 2001-2008 H. Peter Anvin - All Rights Reserved
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, Inc., 53 Temple Place Ste 330,
8 * Boston MA 02111-1307, USA; either version 2 of the License, or
9 * (at your option) any later version; incorporated herein by reference.
11 * ----------------------------------------------------------------------- */
16 * Miscellaneous header definitions
24 /* We use the com32 interface for calling 16-bit code */
27 #define __cdecl __attribute__((cdecl,regparm(0)))
29 void __cdecl intcall(uint8_t, com32sys_t *, com32sys_t *);
31 /* Structure passed in from the real-mode code */
32 struct real_mode_args {
37 uint32_t rm_handle_interrupt;
43 extern struct real_mode_args rm_args;
44 #define sys_bounce ((void *)rm_args.rm_bounce)
46 /* This is the header in the boot sector/setup area */
59 uint32_t realmode_swtch;
61 uint8_t type_of_loader;
63 uint16_t setup_move_size;
64 uint32_t code32_start;
65 uint32_t ramdisk_image;
66 uint32_t ramdisk_size;
67 uint32_t bootsect_kludge;
68 uint16_t head_end_ptr;
70 uint32_t cmd_line_ptr;
71 uint32_t initrd_addr_max;
77 #define shdr ((struct setup_header *)rm_args.rm_base)
79 /* Standard routines */
80 void *memcpy(void *, const void *, size_t);
81 void *memset(void *, int, size_t);
82 void *memmove(void *, const void *, size_t);
84 #define strcpy(a,b) __builtin_strcpy(a,b)
86 static inline size_t strlen(const char *__a)
91 asm("repne;scasb":"=D"(__D), "=c"(__c)
92 : "D"(__a), "c"(-1), "a"(0), "m"(*__a));
97 /* memcpy() but returns a pointer to end of buffer */
98 static inline void *mempcpy(void *__d, const void *__s, unsigned int __n)
100 memcpy(__d, __s, __n);
101 return (void *)((char *)__d + __n);
105 static inline int memcmp(const void *__a, const void *__b, unsigned int __n)
107 const unsigned char *__aa = __a;
108 const unsigned char *__bb = __b;
112 __d = *__bb++ - *__aa++;
120 static inline void sti(void)
125 static inline void cli(void)
131 extern int check_zip(void *indata, uint32_t size, uint32_t * zbytes_p,
132 uint32_t * dbytes_p, uint32_t * orig_crc,
133 uint32_t * offset_p);
134 extern void *unzip(void *indata, uint32_t zbytes, uint32_t dbytes,
135 uint32_t orig_crc, void *target);