mirror of
https://github.com/hsoft/collapseos.git
synced 2024-11-02 03:20:55 +11:00
56 lines
1.2 KiB
C
Executable File
56 lines
1.2 KiB
C
Executable File
#pragma once
|
|
#define regax 0
|
|
#define regcx 1
|
|
#define regdx 2
|
|
#define regbx 3
|
|
#define regsp 4
|
|
#define regbp 5
|
|
#define regsi 6
|
|
#define regdi 7
|
|
#define reges 0
|
|
#define regcs 1
|
|
#define regss 2
|
|
#define regds 3
|
|
|
|
#ifdef __BIG_ENDIAN__
|
|
#define regal 1
|
|
#define regah 0
|
|
#define regcl 3
|
|
#define regch 2
|
|
#define regdl 5
|
|
#define regdh 4
|
|
#define regbl 7
|
|
#define regbh 6
|
|
#else
|
|
#define regal 0
|
|
#define regah 1
|
|
#define regcl 2
|
|
#define regch 3
|
|
#define regdl 4
|
|
#define regdh 5
|
|
#define regbl 6
|
|
#define regbh 7
|
|
#endif
|
|
|
|
#define segbase(x) ((uint32_t) x << 4)
|
|
#define getmem8(x, y) read86(segbase(x) + y)
|
|
#define getmem16(x, y) readw86(segbase(x) + y)
|
|
#define putmem8(x, y, z) write86(segbase(x) + y, z)
|
|
#define putmem16(x, y, z) writew86(segbase(x) + y, z)
|
|
#define getreg16(regid) regs.wordregs[regid]
|
|
#define putreg16(regid, writeval) regs.wordregs[regid] = writeval
|
|
|
|
typedef void (*INTHOOK) ();
|
|
union _bytewordregs_ {
|
|
uint16_t wordregs[8];
|
|
uint8_t byteregs[8];
|
|
};
|
|
|
|
|
|
void write86 (uint32_t addr32, uint8_t value);
|
|
void writew86 (uint32_t addr32, uint16_t value);
|
|
uint8_t read86 (uint32_t addr32);
|
|
uint16_t readw86 (uint32_t addr32);
|
|
int exec86(int execloops); // returns 0 if halted
|
|
void reset86(uint16_t startip);
|