mirror of
https://github.com/xen-project/xen.git
synced 2026-10-29 18:50:05 +01:00
Roger Pau Monne
8dc8415c2c
Hardcode uint8_t, uint16_t and uint32_t typedefs, so we no longer need stdint.h Resolves problem reported by Wang Zhihao on 64bit Ubuntu systems. Signed-off-by: Roger Pau Monne <roger.pau@citrix.com> Committed-by: Keir Fraser <keir@xen.org>
100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
#ifndef ROMBIOS_COMPAT
|
|
#define ROMBIOS_COMPAT
|
|
|
|
/*
|
|
* Compatibility functions and structures for transitioning between
|
|
* 16 bit Bochs BIOS and 32 bit BIOS code.
|
|
*/
|
|
|
|
#define ADDR_FROM_SEG_OFF(seg, off) (void *)((((uint32_t)(seg)) << 4) + (off))
|
|
|
|
typedef unsigned char uint8_t;
|
|
typedef unsigned short int uint16_t;
|
|
typedef unsigned int uint32_t;
|
|
|
|
typedef uint8_t Bit8u;
|
|
typedef uint16_t Bit16u;
|
|
typedef uint32_t Bit32u;
|
|
|
|
#define SetCF(x) (x)->u.r8.flagsl |= 0x01
|
|
#define SetZF(x) (x)->u.r8.flagsl |= 0x40
|
|
#define ClearCF(x) (x)->u.r8.flagsl &= 0xfe
|
|
#define ClearZF(x) (x)->u.r8.flagsl &= 0xbf
|
|
#define GetCF(x) ((x)->u.r8.flagsl & 0x01)
|
|
|
|
#define SET_CF() *FLAGS |= 0x0001
|
|
#define CLEAR_CF() *FLAGS &= 0xfffe
|
|
#define GET_CF() (*FLAGS & 0x0001)
|
|
|
|
#define SET_ZF() *FLAGS |= 0x0040
|
|
#define CLEAR_ZF() *FLAGS &= 0xffbf
|
|
|
|
|
|
typedef struct {
|
|
union {
|
|
struct {
|
|
Bit32u edi, esi, ebp, esp;
|
|
Bit32u ebx, edx, ecx, eax;
|
|
} r32;
|
|
struct {
|
|
Bit16u di, filler1, si, filler2, bp, filler3, sp, filler4;
|
|
Bit16u bx, filler5, dx, filler6, cx, filler7, ax, filler8;
|
|
} r16;
|
|
struct {
|
|
Bit32u filler[4];
|
|
Bit8u bl, bh;
|
|
Bit16u filler1;
|
|
Bit8u dl, dh;
|
|
Bit16u filler2;
|
|
Bit8u cl, ch;
|
|
Bit16u filler3;
|
|
Bit8u al, ah;
|
|
Bit16u filler4;
|
|
} r8;
|
|
} u;
|
|
} __attribute__((packed)) pushad_regs_t;
|
|
|
|
|
|
|
|
static inline Bit32u read_dword(Bit16u seg, Bit16u off)
|
|
{
|
|
uint32_t *addr = (uint32_t *)ADDR_FROM_SEG_OFF(seg,off);
|
|
return *addr;
|
|
}
|
|
|
|
static inline Bit16u read_word(Bit16u seg, Bit16u off)
|
|
{
|
|
uint16_t *addr = (uint16_t *)ADDR_FROM_SEG_OFF(seg,off);
|
|
return *addr;
|
|
}
|
|
|
|
static inline Bit8u read_byte(Bit16u seg, Bit16u off)
|
|
{
|
|
uint8_t *addr = (uint8_t *)ADDR_FROM_SEG_OFF(seg,off);
|
|
return *addr;
|
|
}
|
|
|
|
static inline void write_dword(Bit16u seg, Bit16u off, Bit32u val)
|
|
{
|
|
uint32_t *addr = (uint32_t *)ADDR_FROM_SEG_OFF(seg,off);
|
|
*addr = val;
|
|
}
|
|
|
|
static inline void write_word(Bit16u seg, Bit16u off, Bit16u val)
|
|
{
|
|
uint16_t *addr = (uint16_t *)ADDR_FROM_SEG_OFF(seg,off);
|
|
*addr = val;
|
|
}
|
|
|
|
static inline void write_byte(Bit16u seg, Bit16u off, Bit8u val)
|
|
{
|
|
uint8_t *addr = (uint8_t *)ADDR_FROM_SEG_OFF(seg,off);
|
|
*addr = val;
|
|
}
|
|
|
|
#define X(idx, ret, fn, args...) ret fn (args);
|
|
#include "32bitprotos.h"
|
|
#undef X
|
|
|
|
#endif
|