Bra.c File Reference

#include "Precomp.h"
#include "Bra.h"
#include "RotateDefs.h"
#include "CpuArch.h"

Macros
#define	BR_PC_INIT   pc += (UInt32)size;
#define	BR_PC_GET   (pc - (UInt32)(SizeT)(lim - p))
#define	BR_CONVERT_VAL(v, c)
#define	Z7_BRANCH_CONV(name)
#define	Z7_BRANCH_FUNC_MAIN(name)
#define	Z7_BRANCH_FUNC_IMP(name, m, encoding)
#define	Z7_BRANCH_FUNCS_IMP(name)
#define	BR_EXTERNAL_FOR   for (;;)
#define	BR_NEXT_ITERATION   break;
#define	Z7_UNLIKELY(x)
#define	ARMT_TAIL_PROC   { return p; }
#define	BR_CONVERT_VAL_ENC(v)
#define	BR_CONVERT_VAL_DEC(v)
#define	RISCV_GET_UI32(p)
#define	RISCV_SET_UI32(p, v)
#define	RISCV_LOAD_VAL(p)
#define	RISCV_INSTR_SIZE   2
#define	RISCV_STEP_1   (4 + RISCV_INSTR_SIZE)
#define	RISCV_STEP_2   4
#define	RISCV_REG_VAL   (2 << 7)
#define	RISCV_CMD_VAL   3
#define	RISCV_DELTA_7F   0x7f
#define	RISCV_CHECK_1(v, b)
#define	RISCV_CHECK_2(v, r)
#define	RISCV_SCAN_LOOP

Functions
	Z7_BRANCH_FUNC_MAIN (BranchConv_ARM64)
	Z7_BRANCH_FUNC_MAIN (BranchConv_ARM)
	Z7_BRANCH_FUNC_MAIN (BranchConv_PPC)
	Z7_BRANCH_FUNC_MAIN (BranchConv_SPARC)
	Z7_BRANCH_FUNC_MAIN (BranchConv_ARMT)
	Z7_BRANCH_FUNC_MAIN (BranchConv_IA64)
Byte *Z7_BRANCH_CONV_ENC	RISCV (Byte *p, SizeT size, UInt32 pc)

Macro Definition Documentation

ARMT_TAIL_PROC

#define ARMT_TAIL_PROC   { return p; }

BR_CONVERT_VAL

#define BR_CONVERT_VAL	(		v,
			c )

Value:

if (encoding) v += c; else v -= c;

BR_CONVERT_VAL_DEC

#define BR_CONVERT_VAL_DEC

(

v

)

Value:

v -= BR_PC_GET;

BR_CONVERT_VAL_ENC

#define BR_CONVERT_VAL_ENC

(

v

)

Value:

v += BR_PC_GET;

BR_EXTERNAL_FOR

#define BR_EXTERNAL_FOR   for (;;)

BR_NEXT_ITERATION

#define BR_NEXT_ITERATION   break;

BR_PC_GET

#define BR_PC_GET   (pc - (UInt32)(SizeT)(lim - p))

BR_PC_INIT

#define BR_PC_INIT   pc += (UInt32)size;

RISCV_CHECK_1

#define RISCV_CHECK_1	(		v,
			b )

Value:

    (((((b) - RISCV_CMD_VAL) ^ ((v) << 8)) & (0xf8000 + RISCV_CMD_VAL)) == 0)

RISCV_CHECK_2

#define RISCV_CHECK_2	(		v,
			r )

Value:

    ((((v) - ((RISCV_CMD_VAL << 12) | RISCV_REG_VAL | 8)) \
           << 18) \
     < ((r) & 0x1d))

RISCV_CMD_VAL

#define RISCV_CMD_VAL   3

RISCV_DELTA_7F

#define RISCV_DELTA_7F   0x7f

RISCV_GET_UI32

#define RISCV_GET_UI32

(

p

)

Value:

    ((UInt32)GetUi16a(p) + \
    ((UInt32)GetUi16a((p) + 2) << 16))

RISCV_INSTR_SIZE

#define RISCV_INSTR_SIZE   2

RISCV_LOAD_VAL

#define RISCV_LOAD_VAL

(

p

)

Value:

(*(p))

RISCV_REG_VAL

#define RISCV_REG_VAL   (2 << 7)

RISCV_SCAN_LOOP

#define RISCV_SCAN_LOOP

Value:

  Byte *lim; \
  size &= ~(SizeT)(RISCV_INSTR_SIZE - 1); \
  if (size <= 6) return p; \
  size -= 6; \
  lim = p + size; \
  BR_PC_INIT \
  for (;;) \
  { \
    UInt32 a, v; \
    /* Z7_PRAGMA_OPT_DISABLE_LOOP_UNROLL_VECTORIZE */ \
    for (;;) \
    { \
      if Z7_UNLIKELY(p >= lim) { return p; } \
      a = (RISCV_LOAD_VAL(p) ^ 0x10u) + 1; \
      if ((a & 0x77) == 0) break; \
      a = (RISCV_LOAD_VAL(p + RISCV_INSTR_SIZE) ^ 0x10u) + 1; \
      p += RISCV_INSTR_SIZE * 2; \
      if ((a & 0x77) == 0) \
      { \
        p -= RISCV_INSTR_SIZE; \
        if Z7_UNLIKELY(p >= lim) { return p; } \
        break; \
      } \
    }

RISCV_SET_UI32

#define RISCV_SET_UI32	(		p,
			v )

Value:

    { \
    SetUi16a(p, (UInt16)(v)) \
    SetUi16a((p) + 2, (UInt16)(v >> 16)) }

RISCV_STEP_1

#define RISCV_STEP_1   (4 + RISCV_INSTR_SIZE)

RISCV_STEP_2

#define RISCV_STEP_2   4

Z7_BRANCH_CONV

#define Z7_BRANCH_CONV

(

name

)

Value:

z7_ ## name

Z7_BRANCH_FUNC_IMP

#define Z7_BRANCH_FUNC_IMP	(		name,
			m,
			encoding )

Value:

Z7_NO_INLINE \
Z7_ATTRIB_NO_VECTOR \
Byte *m(name)(Byte *data, SizeT size, UInt32 pc) \
  { return Z7_BRANCH_CONV(name)(data, size, pc, encoding); } \

Z7_BRANCH_FUNC_MAIN

#define Z7_BRANCH_FUNC_MAIN

(

name

)

Value:

static \
Z7_FORCE_INLINE \
Z7_ATTRIB_NO_VECTOR \
Byte *Z7_BRANCH_CONV(name)(Byte *p, SizeT size, UInt32 pc, int encoding)

Z7_BRANCH_FUNCS_IMP

#define Z7_BRANCH_FUNCS_IMP

(

name

)

Value:

  Z7_BRANCH_FUNC_IMP(name, Z7_BRANCH_CONV_DEC_2, 0) \
  Z7_BRANCH_FUNC_IMP(name, Z7_BRANCH_CONV_ENC_2, 1)

Z7_UNLIKELY

#define Z7_UNLIKELY

(

x

)

Value:

(x)

Function Documentation

RISCV()

Byte *Z7_BRANCH_CONV_DEC RISCV	(	Byte *	p,
		SizeT	size,
		UInt32	pc )

Z7_BRANCH_FUNC_MAIN() [1/6]

Z7_BRANCH_FUNC_MAIN

(

BranchConv_ARM

)

Z7_BRANCH_FUNC_MAIN() [2/6]

Z7_BRANCH_FUNC_MAIN

(

BranchConv_ARM64

)

Z7_BRANCH_FUNC_MAIN() [3/6]

Z7_BRANCH_FUNC_MAIN

(

BranchConv_ARMT

)

Z7_BRANCH_FUNC_MAIN() [4/6]

Z7_BRANCH_FUNC_MAIN

(

BranchConv_IA64

)

Z7_BRANCH_FUNC_MAIN() [5/6]

Z7_BRANCH_FUNC_MAIN

(

BranchConv_PPC

)

Z7_BRANCH_FUNC_MAIN() [6/6]

Z7_BRANCH_FUNC_MAIN

(

BranchConv_SPARC

)