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1128 lines
37 KiB
1128 lines
37 KiB
/*
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* arm-codegen.h
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* Copyright (c) 2002-2003 Sergey Chaban <serge@wildwestsoftware.com>
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* Copyright 2005-2011 Novell Inc
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* Copyright 2011 Xamarin Inc
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*/
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#ifndef ARM_H
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#define ARM_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef unsigned int arminstr_t;
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typedef unsigned int armword_t;
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/* Helper functions */
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arminstr_t* arm_emit_std_prologue(arminstr_t* p, unsigned int local_size);
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arminstr_t* arm_emit_std_epilogue(arminstr_t* p, unsigned int local_size, int pop_regs);
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arminstr_t* arm_emit_lean_prologue(arminstr_t* p, unsigned int local_size, int push_regs);
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int arm_is_power_of_2(armword_t val);
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int calc_arm_mov_const_shift(armword_t val);
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int is_arm_const(armword_t val);
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int arm_bsf(armword_t val);
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arminstr_t* arm_mov_reg_imm32_cond(arminstr_t* p, int reg, armword_t imm32, int cond);
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arminstr_t* arm_mov_reg_imm32(arminstr_t* p, int reg, armword_t imm32);
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#if defined(_MSC_VER) || defined(__CC_NORCROFT)
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void __inline _arm_emit(arminstr_t** p, arminstr_t i) {**p = i; (*p)++;}
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# define ARM_EMIT(p, i) _arm_emit((arminstr_t**)&p, (arminstr_t)(i))
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#else
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# define ARM_EMIT(p, i) do { arminstr_t *__ainstrp = (void*)(p); *__ainstrp = (arminstr_t)(i); (p) = (void*)(__ainstrp+1);} while (0)
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#endif
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#if defined(_MSC_VER) && !defined(ARM_NOIASM)
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# define ARM_IASM(_expr) __emit (_expr)
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#else
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# define ARM_IASM(_expr)
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#endif
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/* even_scale = rot << 1 */
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#define ARM_SCALE(imm8, even_scale) ( ((imm8) >> (even_scale)) | ((imm8) << (32 - even_scale)) )
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typedef enum {
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ARMREG_R0 = 0,
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ARMREG_R1,
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ARMREG_R2,
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ARMREG_R3,
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ARMREG_R4,
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ARMREG_R5,
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ARMREG_R6,
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ARMREG_R7,
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ARMREG_R8,
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ARMREG_R9,
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ARMREG_R10,
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ARMREG_R11,
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ARMREG_R12,
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ARMREG_R13,
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ARMREG_R14,
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ARMREG_R15,
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/* aliases */
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/* args */
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ARMREG_A1 = ARMREG_R0,
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ARMREG_A2 = ARMREG_R1,
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ARMREG_A3 = ARMREG_R2,
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ARMREG_A4 = ARMREG_R3,
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/* local vars */
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ARMREG_V1 = ARMREG_R4,
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ARMREG_V2 = ARMREG_R5,
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ARMREG_V3 = ARMREG_R6,
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ARMREG_V4 = ARMREG_R7,
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ARMREG_V5 = ARMREG_R8,
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ARMREG_V6 = ARMREG_R9,
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ARMREG_V7 = ARMREG_R10,
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ARMREG_FP = ARMREG_R11,
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ARMREG_IP = ARMREG_R12,
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ARMREG_SP = ARMREG_R13,
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ARMREG_LR = ARMREG_R14,
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ARMREG_PC = ARMREG_R15,
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/* co-processor */
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ARMREG_CR0 = 0,
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ARMREG_CR1,
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ARMREG_CR2,
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ARMREG_CR3,
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ARMREG_CR4,
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ARMREG_CR5,
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ARMREG_CR6,
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ARMREG_CR7,
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ARMREG_CR8,
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ARMREG_CR9,
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ARMREG_CR10,
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ARMREG_CR11,
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ARMREG_CR12,
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ARMREG_CR13,
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ARMREG_CR14,
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ARMREG_CR15,
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/* XScale: acc0 on CP0 */
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ARMREG_ACC0 = ARMREG_CR0,
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ARMREG_MAX = ARMREG_R15
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} ARMReg;
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/* number of argument registers */
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#define ARM_NUM_ARG_REGS 4
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/* bitvector for all argument regs (A1-A4) */
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#define ARM_ALL_ARG_REGS \
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(1 << ARMREG_A1) | (1 << ARMREG_A2) | (1 << ARMREG_A3) | (1 << ARMREG_A4)
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typedef enum {
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ARMCOND_EQ = 0x0, /* Equal; Z = 1 */
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ARMCOND_NE = 0x1, /* Not equal, or unordered; Z = 0 */
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ARMCOND_CS = 0x2, /* Carry set; C = 1 */
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ARMCOND_HS = ARMCOND_CS, /* Unsigned higher or same; */
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ARMCOND_CC = 0x3, /* Carry clear; C = 0 */
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ARMCOND_LO = ARMCOND_CC, /* Unsigned lower */
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ARMCOND_MI = 0x4, /* Negative; N = 1 */
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ARMCOND_PL = 0x5, /* Positive or zero; N = 0 */
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ARMCOND_VS = 0x6, /* Overflow; V = 1 */
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ARMCOND_VC = 0x7, /* No overflow; V = 0 */
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ARMCOND_HI = 0x8, /* Unsigned higher; C = 1 && Z = 0 */
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ARMCOND_LS = 0x9, /* Unsigned lower or same; C = 0 || Z = 1 */
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ARMCOND_GE = 0xA, /* Signed greater than or equal; N = V */
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ARMCOND_LT = 0xB, /* Signed less than; N != V */
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ARMCOND_GT = 0xC, /* Signed greater than; Z = 0 && N = V */
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ARMCOND_LE = 0xD, /* Signed less than or equal; Z = 1 && N != V */
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ARMCOND_AL = 0xE, /* Always */
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ARMCOND_NV = 0xF, /* Never */
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ARMCOND_SHIFT = 28
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} ARMCond;
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#define ARMCOND_MASK (ARMCOND_NV << ARMCOND_SHIFT)
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#define ARM_DEF_COND(cond) (((cond) & 0xF) << ARMCOND_SHIFT)
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typedef enum {
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ARMSHIFT_LSL = 0,
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ARMSHIFT_LSR = 1,
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ARMSHIFT_ASR = 2,
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ARMSHIFT_ROR = 3,
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ARMSHIFT_ASL = ARMSHIFT_LSL
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/* rrx = (ror, 1) */
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} ARMShiftType;
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typedef struct {
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armword_t PSR_c : 8;
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armword_t PSR_x : 8;
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armword_t PSR_s : 8;
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armword_t PSR_f : 8;
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} ARMPSR;
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typedef enum {
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ARMOP_AND = 0x0,
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ARMOP_EOR = 0x1,
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ARMOP_SUB = 0x2,
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ARMOP_RSB = 0x3,
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ARMOP_ADD = 0x4,
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ARMOP_ADC = 0x5,
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ARMOP_SBC = 0x6,
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ARMOP_RSC = 0x7,
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ARMOP_TST = 0x8,
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ARMOP_TEQ = 0x9,
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ARMOP_CMP = 0xa,
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ARMOP_CMN = 0xb,
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ARMOP_ORR = 0xc,
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ARMOP_MOV = 0xd,
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ARMOP_BIC = 0xe,
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ARMOP_MVN = 0xf,
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/* not really opcodes */
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ARMOP_STR = 0x0,
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ARMOP_LDR = 0x1,
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/* ARM2+ */
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ARMOP_MUL = 0x0, /* Rd := Rm*Rs */
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ARMOP_MLA = 0x1, /* Rd := (Rm*Rs)+Rn */
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/* ARM3M+ */
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ARMOP_UMULL = 0x4,
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ARMOP_UMLAL = 0x5,
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ARMOP_SMULL = 0x6,
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ARMOP_SMLAL = 0x7,
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/* for data transfers with register offset */
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ARM_UP = 1,
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ARM_DOWN = 0
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} ARMOpcode;
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typedef enum {
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THUMBOP_AND = 0,
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THUMBOP_EOR = 1,
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THUMBOP_LSL = 2,
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THUMBOP_LSR = 3,
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THUMBOP_ASR = 4,
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THUMBOP_ADC = 5,
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THUMBOP_SBC = 6,
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THUMBOP_ROR = 7,
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THUMBOP_TST = 8,
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THUMBOP_NEG = 9,
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THUMBOP_CMP = 10,
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THUMBOP_CMN = 11,
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THUMBOP_ORR = 12,
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THUMBOP_MUL = 13,
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THUMBOP_BIC = 14,
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THUMBOP_MVN = 15,
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THUMBOP_MOV = 16,
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THUMBOP_CMPI = 17,
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THUMBOP_ADD = 18,
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THUMBOP_SUB = 19,
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THUMBOP_CMPH = 19,
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THUMBOP_MOVH = 20
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} ThumbOpcode;
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/* Generic form - all ARM instructions are conditional. */
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typedef struct {
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arminstr_t icode : 28;
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arminstr_t cond : 4;
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} ARMInstrGeneric;
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/* Branch or Branch with Link instructions. */
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typedef struct {
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arminstr_t offset : 24;
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arminstr_t link : 1;
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arminstr_t tag : 3; /* 1 0 1 */
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arminstr_t cond : 4;
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} ARMInstrBR;
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#define ARM_BR_ID 5
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#define ARM_BR_MASK 7 << 25
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#define ARM_BR_TAG ARM_BR_ID << 25
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#define ARM_DEF_BR(offs, l, cond) ((offs) | ((l) << 24) | (ARM_BR_TAG) | (cond << ARMCOND_SHIFT))
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/* branch */
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#define ARM_B_COND(p, cond, offset) ARM_EMIT(p, ARM_DEF_BR(offset, 0, cond))
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#define ARM_B(p, offs) ARM_B_COND((p), ARMCOND_AL, (offs))
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/* branch with link */
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#define ARM_BL_COND(p, cond, offset) ARM_EMIT(p, ARM_DEF_BR(offset, 1, cond))
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#define ARM_BL(p, offs) ARM_BL_COND((p), ARMCOND_AL, (offs))
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#define ARM_DEF_BX(reg,sub,cond) (0x12fff << 8 | (reg) | ((sub) << 4) | ((cond) << ARMCOND_SHIFT))
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#define ARM_BX_COND(p, cond, reg) ARM_EMIT(p, ARM_DEF_BX(reg, 1, cond))
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#define ARM_BX(p, reg) ARM_BX_COND((p), ARMCOND_AL, (reg))
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#define ARM_BLX_REG_COND(p, cond, reg) ARM_EMIT(p, ARM_DEF_BX(reg, 3, cond))
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#define ARM_BLX_REG(p, reg) ARM_BLX_REG_COND((p), ARMCOND_AL, (reg))
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/* Data Processing Instructions - there are 3 types. */
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typedef struct {
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arminstr_t imm : 8;
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arminstr_t rot : 4;
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} ARMDPI_op2_imm;
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typedef struct {
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arminstr_t rm : 4;
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arminstr_t tag : 1; /* 0 - immediate shift, 1 - reg shift */
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arminstr_t type : 2; /* shift type - logical, arithmetic, rotate */
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} ARMDPI_op2_reg_shift;
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/* op2 is reg shift by imm */
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typedef union {
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ARMDPI_op2_reg_shift r2;
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struct {
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arminstr_t _dummy_r2 : 7;
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arminstr_t shift : 5;
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} imm;
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} ARMDPI_op2_reg_imm;
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/* op2 is reg shift by reg */
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typedef union {
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ARMDPI_op2_reg_shift r2;
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struct {
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arminstr_t _dummy_r2 : 7;
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arminstr_t pad : 1; /* always 0, to differentiate from HXFER etc. */
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arminstr_t rs : 4;
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} reg;
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} ARMDPI_op2_reg_reg;
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/* Data processing instrs */
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typedef union {
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ARMDPI_op2_imm op2_imm;
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ARMDPI_op2_reg_shift op2_reg;
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ARMDPI_op2_reg_imm op2_reg_imm;
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ARMDPI_op2_reg_reg op2_reg_reg;
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struct {
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arminstr_t op2 : 12; /* raw operand 2 */
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arminstr_t rd : 4; /* destination reg */
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arminstr_t rn : 4; /* first operand reg */
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arminstr_t s : 1; /* S-bit controls PSR update */
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arminstr_t opcode : 4; /* arithmetic/logic operation */
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arminstr_t type : 1; /* type of op2, 0 = register, 1 = immediate */
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arminstr_t tag : 2; /* 0 0 */
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arminstr_t cond : 4;
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} all;
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} ARMInstrDPI;
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#define ARM_DPI_ID 0
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#define ARM_DPI_MASK 3 << 26
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#define ARM_DPI_TAG ARM_DPI_ID << 26
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#define ARM_DEF_DPI_IMM_COND(imm8, rot, rd, rn, s, op, cond) \
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((imm8) & 0xFF) | \
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(((rot) & 0xF) << 8) | \
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((rd) << 12) | \
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((rn) << 16) | \
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((s) << 20) | \
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((op) << 21) | \
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(1 << 25) | \
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(ARM_DPI_TAG) | \
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ARM_DEF_COND(cond)
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#define ARM_DEF_DPI_IMM(imm8, rot, rd, rn, s, op) \
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ARM_DEF_DPI_IMM_COND(imm8, rot, rd, rn, s, op, ARMCOND_AL)
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/* codegen */
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#define ARM_DPIOP_REG_IMM8ROT_COND(p, op, rd, rn, imm8, rot, cond) \
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ARM_EMIT(p, ARM_DEF_DPI_IMM_COND((imm8), ((rot) >> 1), (rd), (rn), 0, (op), cond))
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#define ARM_DPIOP_S_REG_IMM8ROT_COND(p, op, rd, rn, imm8, rot, cond) \
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ARM_EMIT(p, ARM_DEF_DPI_IMM_COND((imm8), ((rot) >> 1), (rd), (rn), 1, (op), cond))
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/* inline */
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#define ARM_IASM_DPIOP_REG_IMM8ROT_COND(p, op, rd, rn, imm8, rot, cond) \
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ARM_IASM(ARM_DEF_DPI_IMM_COND((imm8), ((rot) >> 1), (rd), (rn), 0, (op), cond))
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#define ARM_IASM_DPIOP_S_REG_IMM8ROT_COND(p, op, rd, rn, imm8, rot, cond) \
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ARM_IASM(ARM_DEF_DPI_IMM_COND((imm8), ((rot) >> 1), (rd), (rn), 1, (op), cond))
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#define ARM_DEF_DPI_REG_IMMSHIFT_COND(rm, shift_type, imm_shift, rd, rn, s, op, cond) \
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(rm) | \
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((shift_type & 3) << 5) | \
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(((imm_shift) & 0x1F) << 7) | \
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((rd) << 12) | \
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((rn) << 16) | \
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((s) << 20) | \
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((op) << 21) | \
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(ARM_DPI_TAG) | \
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ARM_DEF_COND(cond)
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/* codegen */
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#define ARM_DPIOP_REG_IMMSHIFT_COND(p, op, rd, rn, rm, shift_t, imm_shift, cond) \
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ARM_EMIT(p, ARM_DEF_DPI_REG_IMMSHIFT_COND((rm), shift_t, imm_shift, (rd), (rn), 0, (op), cond))
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#define ARM_DPIOP_S_REG_IMMSHIFT_COND(p, op, rd, rn, rm, shift_t, imm_shift, cond) \
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ARM_EMIT(p, ARM_DEF_DPI_REG_IMMSHIFT_COND((rm), shift_t, imm_shift, (rd), (rn), 1, (op), cond))
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#define ARM_DPIOP_REG_REG_COND(p, op, rd, rn, rm, cond) \
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ARM_EMIT(p, ARM_DEF_DPI_REG_IMMSHIFT_COND((rm), ARMSHIFT_LSL, 0, (rd), (rn), 0, (op), cond))
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#define ARM_DPIOP_S_REG_REG_COND(p, op, rd, rn, rm, cond) \
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ARM_EMIT(p, ARM_DEF_DPI_REG_IMMSHIFT_COND((rm), ARMSHIFT_LSL, 0, (rd), (rn), 1, (op), cond))
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/* inline */
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#define ARM_IASM_DPIOP_REG_IMMSHIFT_COND(p, op, rd, rn, rm, shift_t, imm_shift, cond) \
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ARM_IASM(ARM_DEF_DPI_REG_IMMSHIFT_COND((rm), shift_t, imm_shift, (rd), (rn), 0, (op), cond))
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#define ARM_IASM_DPIOP_S_REG_IMMSHIFT_COND(p, op, rd, rn, rm, shift_t, imm_shift, cond) \
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ARM_IASM(ARM_DEF_DPI_REG_IMMSHIFT_COND((rm), shift_t, imm_shift, (rd), (rn), 1, (op), cond))
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#define ARM_IASM_DPIOP_REG_REG_COND(p, op, rd, rn, rm, cond) \
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ARM_IASM(ARM_DEF_DPI_REG_IMMSHIFT_COND((rm), ARMSHIFT_LSL, 0, (rd), (rn), 0, (op), cond))
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#define ARM_IASM_DPIOP_S_REG_REG_COND(p, op, rd, rn, rm, cond) \
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ARM_IASM_EMIT(ARM_DEF_DPI_REG_IMMSHIFT_COND((rm), ARMSHIFT_LSL, 0, (rd), (rn), 1, (op), cond))
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/* Rd := Rn op (Rm shift_type Rs) */
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#define ARM_DEF_DPI_REG_REGSHIFT_COND(rm, shift_type, rs, rd, rn, s, op, cond) \
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(rm) | \
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(1 << 4) | \
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((shift_type & 3) << 5) | \
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((rs) << 8) | \
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((rd) << 12) | \
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((rn) << 16) | \
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((s) << 20) | \
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((op) << 21) | \
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(ARM_DPI_TAG) | \
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ARM_DEF_COND(cond)
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/* codegen */
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#define ARM_DPIOP_REG_REGSHIFT_COND(p, op, rd, rn, rm, shift_t, rs, cond) \
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ARM_EMIT(p, ARM_DEF_DPI_REG_REGSHIFT_COND((rm), shift_t, (rs), (rd), (rn), 0, (op), cond))
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#define ARM_DPIOP_S_REG_REGSHIFT_COND(p, op, rd, rn, rm, shift_t, rs, cond) \
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ARM_EMIT(p, ARM_DEF_DPI_REG_REGSHIFT_COND((rm), shift_t, (rs), (rd), (rn), 1, (op), cond))
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/* inline */
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#define ARM_IASM_DPIOP_REG_REGSHIFT_COND(p, op, rd, rn, rm, shift_t, rs, cond) \
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ARM_IASM(ARM_DEF_DPI_REG_REGSHIFT_COND((rm), shift_t, (rs), (rd), (rn), 0, (op), cond))
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#define ARM_IASM_DPIOP_S_REG_REGSHIFT_COND(p, op, rd, rn, rm, shift_t, rs, cond) \
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ARM_IASM(ARM_DEF_DPI_REG_REGSHIFT_COND((rm), shift_t, (rs), (rd), (rn), 1, (op), cond))
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/* Multiple register transfer. */
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typedef struct {
|
|
arminstr_t reg_list : 16; /* bitfield */
|
|
arminstr_t rn : 4; /* base reg */
|
|
arminstr_t ls : 1; /* load(1)/store(0) */
|
|
arminstr_t wb : 1; /* write-back "!" */
|
|
arminstr_t s : 1; /* restore PSR, force user bit */
|
|
arminstr_t u : 1; /* up/down */
|
|
arminstr_t p : 1; /* pre(1)/post(0) index */
|
|
arminstr_t tag : 3; /* 1 0 0 */
|
|
arminstr_t cond : 4;
|
|
} ARMInstrMRT;
|
|
|
|
#define ARM_MRT_ID 4
|
|
#define ARM_MRT_MASK 7 << 25
|
|
#define ARM_MRT_TAG ARM_MRT_ID << 25
|
|
|
|
#define ARM_DEF_MRT(regs, rn, l, w, s, u, p, cond) \
|
|
(regs) | \
|
|
(rn << 16) | \
|
|
(l << 20) | \
|
|
(w << 21) | \
|
|
(s << 22) | \
|
|
(u << 23) | \
|
|
(p << 24) | \
|
|
(ARM_MRT_TAG) | \
|
|
ARM_DEF_COND(cond)
|
|
|
|
|
|
#define ARM_LDM(p, base, regs) ARM_EMIT(p, ARM_DEF_MRT(regs, base, 1, 0, 0, 1, 0, ARMCOND_AL))
|
|
#define ARM_STM(p, base, regs) ARM_EMIT(p, ARM_DEF_MRT(regs, base, 0, 0, 0, 1, 0, ARMCOND_AL))
|
|
|
|
/* stmdb sp!, {regs} */
|
|
#define ARM_PUSH(p, regs) ARM_EMIT(p, ARM_DEF_MRT(regs, ARMREG_SP, 0, 1, 0, 0, 1, ARMCOND_AL))
|
|
#define ARM_IASM_PUSH(regs) ARM_IASM(ARM_DEF_MRT(regs, ARMREG_SP, 0, 1, 0, 0, 1, ARMCOND_AL))
|
|
|
|
/* ldmia sp!, {regs} */
|
|
#define ARM_POP(p, regs) ARM_EMIT(p, ARM_DEF_MRT(regs, ARMREG_SP, 1, 1, 0, 1, 0, ARMCOND_AL))
|
|
#define ARM_IASM_POP(regs) ARM_IASM_EMIT(ARM_DEF_MRT(regs, ARMREG_SP, 1, 1, 0, 1, 0, ARMCOND_AL))
|
|
|
|
/* ldmia sp, {regs} ; (no write-back) */
|
|
#define ARM_POP_NWB(p, regs) ARM_EMIT(p, ARM_DEF_MRT(regs, ARMREG_SP, 1, 0, 0, 1, 0, ARMCOND_AL))
|
|
#define ARM_IASM_POP_NWB(regs) ARM_IASM_EMIT(ARM_DEF_MRT(regs, ARMREG_SP, 1, 0, 0, 1, 0, ARMCOND_AL))
|
|
|
|
#define ARM_PUSH1(p, r1) ARM_PUSH(p, (1 << r1))
|
|
#define ARM_PUSH2(p, r1, r2) ARM_PUSH(p, (1 << r1) | (1 << r2))
|
|
#define ARM_PUSH3(p, r1, r2, r3) ARM_PUSH(p, (1 << r1) | (1 << r2) | (1 << r3))
|
|
#define ARM_PUSH4(p, r1, r2, r3, r4) ARM_PUSH(p, (1 << r1) | (1 << r2) | (1 << r3) | (1 << r4))
|
|
#define ARM_PUSH5(p, r1, r2, r3, r4, r5) ARM_PUSH(p, (1 << r1) | (1 << r2) | (1 << r3) | (1 << r4) | (1 << r5))
|
|
#define ARM_PUSH6(p, r1, r2, r3, r4, r5, r6) ARM_PUSH(p, (1 << r1) | (1 << r2) | (1 << r3) | (1 << r4) | (1 << r5) | (1 << r6))
|
|
#define ARM_PUSH7(p, r1, r2, r3, r4, r5, r6, r7) ARM_PUSH(p, (1 << r1) | (1 << r2) | (1 << r3) | (1 << r4) | (1 << r5) | (1 << r6) | (1 << r7))
|
|
#define ARM_PUSH8(p, r1, r2, r3, r4, r5, r6, r7, r8) ARM_PUSH(p, (1 << r1) | (1 << r2) | (1 << r3) | (1 << r4) | (1 << r5) | (1 << r6) | (1 << r7) | (1 << r8))
|
|
|
|
#define ARM_POP8(p, r1, r2, r3, r4, r5, r6, r7, r8) ARM_POP(p, (1 << r1) | (1 << r2) | (1 << r3) | (1 << r4) | (1 << r5) | (1 << r6) | (1 << r7) | (1 << r8))
|
|
#define ARM_POP7(p, r1, r2, r3, r4, r5, r6, r7) ARM_POP(p, (1 << r1) | (1 << r2) | (1 << r3) | (1 << r4) | (1 << r5) | (1 << r6) | (1 << r7))
|
|
#define ARM_POP6(p, r1, r2, r3, r4, r5, r6) ARM_POP(p, (1 << r1) | (1 << r2) | (1 << r3) | (1 << r4) | (1 << r5) | (1 << r6))
|
|
#define ARM_POP5(p, r1, r2, r3, r4, r5) ARM_POP(p, (1 << r1) | (1 << r2) | (1 << r3) | (1 << r4) | (1 << r5))
|
|
#define ARM_POP4(p, r1, r2, r3, r4) ARM_POP(p, (1 << r1) | (1 << r2) | (1 << r3) | (1 << r4))
|
|
#define ARM_POP3(p, r1, r2, r3) ARM_POP(p, (1 << r1) | (1 << r2) | (1 << r3))
|
|
#define ARM_POP2(p, r1, r2) ARM_POP(p, (1 << r1) | (1 << r2))
|
|
#define ARM_POP1(p, r1) ARM_POP(p, (1 << r1))
|
|
|
|
|
|
/* Multiply instructions */
|
|
typedef struct {
|
|
arminstr_t rm : 4;
|
|
arminstr_t tag2 : 4; /* 9 */
|
|
arminstr_t rs : 4;
|
|
arminstr_t rn : 4;
|
|
arminstr_t rd : 4;
|
|
arminstr_t s : 1;
|
|
arminstr_t opcode : 3;
|
|
arminstr_t tag : 4;
|
|
arminstr_t cond : 4;
|
|
} ARMInstrMul;
|
|
|
|
#define ARM_MUL_ID 0
|
|
#define ARM_MUL_ID2 9
|
|
#define ARM_MUL_MASK ((0xF << 24) | (0xF << 4))
|
|
#define ARM_MUL_TAG ((ARM_MUL_ID << 24) | (ARM_MUL_ID2 << 4))
|
|
|
|
#define ARM_DEF_MUL_COND(op, rd, rm, rs, rn, s, cond) \
|
|
(rm) | \
|
|
((rs) << 8) | \
|
|
((rn) << 12) | \
|
|
((rd) << 16) | \
|
|
((s & 1) << 17) | \
|
|
((op & 7) << 18) | \
|
|
ARM_MUL_TAG | \
|
|
ARM_DEF_COND(cond)
|
|
|
|
/* Rd := (Rm * Rs)[31:0]; 32 x 32 -> 32 */
|
|
#define ARM_MUL_COND(p, rd, rm, rs, cond) \
|
|
ARM_EMIT(p, ARM_DEF_MUL_COND(ARMOP_MUL, rd, rm, rs, 0, 0, cond))
|
|
#define ARM_MUL(p, rd, rm, rs) \
|
|
ARM_MUL_COND(p, rd, rm, rs, ARMCOND_AL)
|
|
#define ARM_MULS_COND(p, rd, rm, rs, cond) \
|
|
ARM_EMIT(p, ARM_DEF_MUL_COND(ARMOP_MUL, rd, rm, rs, 0, 1, cond))
|
|
#define ARM_MULS(p, rd, rm, rs) \
|
|
ARM_MULS_COND(p, rd, rm, rs, ARMCOND_AL)
|
|
#define ARM_MUL_REG_REG(p, rd, rm, rs) ARM_MUL(p, rd, rm, rs)
|
|
#define ARM_MULS_REG_REG(p, rd, rm, rs) ARM_MULS(p, rd, rm, rs)
|
|
|
|
/* inline */
|
|
#define ARM_IASM_MUL_COND(rd, rm, rs, cond) \
|
|
ARM_IASM_EMIT(ARM_DEF_MUL_COND(ARMOP_MUL, rd, rm, rs, 0, 0, cond))
|
|
#define ARM_IASM_MUL(rd, rm, rs) \
|
|
ARM_IASM_MUL_COND(rd, rm, rs, ARMCOND_AL)
|
|
#define ARM_IASM_MULS_COND(rd, rm, rs, cond) \
|
|
ARM_IASM_EMIT(ARM_DEF_MUL_COND(ARMOP_MUL, rd, rm, rs, 0, 1, cond))
|
|
#define ARM_IASM_MULS(rd, rm, rs) \
|
|
ARM_IASM_MULS_COND(rd, rm, rs, ARMCOND_AL)
|
|
|
|
|
|
/* Rd := (Rm * Rs) + Rn; 32x32+32->32 */
|
|
#define ARM_MLA_COND(p, rd, rm, rs, rn, cond) \
|
|
ARM_EMIT(p, ARM_DEF_MUL_COND(ARMOP_MLA, rd, rm, rs, rn, 0, cond))
|
|
#define ARM_MLA(p, rd, rm, rs, rn) \
|
|
ARM_MLA_COND(p, rd, rm, rs, rn, ARMCOND_AL)
|
|
#define ARM_MLAS_COND(p, rd, rm, rs, rn, cond) \
|
|
ARM_EMIT(p, ARM_DEF_MUL_COND(ARMOP_MLA, rd, rm, rs, rn, 1, cond))
|
|
#define ARM_MLAS(p, rd, rm, rs, rn) \
|
|
ARM_MLAS_COND(p, rd, rm, rs, rn, ARMCOND_AL)
|
|
|
|
/* inline */
|
|
#define ARM_IASM_MLA_COND(rd, rm, rs, rn, cond) \
|
|
ARM_IASM_EMIT(ARM_DEF_MUL_COND(ARMOP_MLA, rd, rm, rs, rn, 0, cond))
|
|
#define ARM_IASM_MLA(rd, rm, rs, rn) \
|
|
ARM_IASM_MLA_COND(rd, rm, rs, rn, ARMCOND_AL)
|
|
#define ARM_IASM_MLAS_COND(rd, rm, rs, rn, cond) \
|
|
ARM_IASM_EMIT(ARM_DEF_MUL_COND(ARMOP_MLA, rd, rm, rs, rn, 1, cond))
|
|
#define ARM_IASM_MLAS(rd, rm, rs, rn) \
|
|
ARM_IASM_MLAS_COND(rd, rm, rs, rn, ARMCOND_AL)
|
|
|
|
|
|
|
|
/* Word/byte transfer */
|
|
typedef union {
|
|
ARMDPI_op2_reg_imm op2_reg_imm;
|
|
struct {
|
|
arminstr_t op2_imm : 12;
|
|
arminstr_t rd : 4;
|
|
arminstr_t rn : 4;
|
|
arminstr_t ls : 1;
|
|
arminstr_t wb : 1;
|
|
arminstr_t b : 1;
|
|
arminstr_t u : 1; /* down(0) / up(1) */
|
|
arminstr_t p : 1; /* post-index(0) / pre-index(1) */
|
|
arminstr_t type : 1; /* imm(0) / register(1) */
|
|
arminstr_t tag : 2; /* 0 1 */
|
|
arminstr_t cond : 4;
|
|
} all;
|
|
} ARMInstrWXfer;
|
|
|
|
#define ARM_WXFER_ID 1
|
|
#define ARM_WXFER_MASK 3 << 26
|
|
#define ARM_WXFER_TAG ARM_WXFER_ID << 26
|
|
|
|
|
|
#define ARM_DEF_WXFER_IMM(imm12, rd, rn, ls, wb, b, p, cond) \
|
|
((((int)imm12) < 0) ? -(int)(imm12) : (imm12)) | \
|
|
((rd) << 12) | \
|
|
((rn) << 16) | \
|
|
((ls) << 20) | \
|
|
((wb) << 21) | \
|
|
((b) << 22) | \
|
|
(((int)(imm12) >= 0) << 23) | \
|
|
((p) << 24) | \
|
|
ARM_WXFER_TAG | \
|
|
ARM_DEF_COND(cond)
|
|
|
|
#define ARM_WXFER_MAX_OFFS 0xFFF
|
|
|
|
/* this macro checks for imm12 bounds */
|
|
#define ARM_EMIT_WXFER_IMM(ptr, imm12, rd, rn, ls, wb, b, p, cond) \
|
|
do { \
|
|
int _imm12 = (int)(imm12) < -ARM_WXFER_MAX_OFFS \
|
|
? -ARM_WXFER_MAX_OFFS \
|
|
: (int)(imm12) > ARM_WXFER_MAX_OFFS \
|
|
? ARM_WXFER_MAX_OFFS \
|
|
: (int)(imm12); \
|
|
ARM_EMIT((ptr), \
|
|
ARM_DEF_WXFER_IMM(_imm12, (rd), (rn), (ls), (wb), (b), (p), (cond))); \
|
|
} while (0)
|
|
|
|
|
|
/* LDRx */
|
|
/* immediate offset, post-index */
|
|
#define ARM_LDR_IMM_POST_COND(p, rd, rn, imm, cond) \
|
|
ARM_EMIT(p, ARM_DEF_WXFER_IMM(imm, rd, rn, ARMOP_LDR, 0, 0, 0, cond))
|
|
|
|
#define ARM_LDR_IMM_POST(p, rd, rn, imm) ARM_LDR_IMM_POST_COND(p, rd, rn, imm, ARMCOND_AL)
|
|
|
|
#define ARM_LDRB_IMM_POST_COND(p, rd, rn, imm, cond) \
|
|
ARM_EMIT(p, ARM_DEF_WXFER_IMM(imm, rd, rn, ARMOP_LDR, 0, 1, 0, cond))
|
|
|
|
#define ARM_LDRB_IMM_POST(p, rd, rn, imm) ARM_LDRB_IMM_POST_COND(p, rd, rn, imm, ARMCOND_AL)
|
|
|
|
/* immediate offset, pre-index */
|
|
#define ARM_LDR_IMM_COND(p, rd, rn, imm, cond) \
|
|
ARM_EMIT(p, ARM_DEF_WXFER_IMM(imm, rd, rn, ARMOP_LDR, 0, 0, 1, cond))
|
|
|
|
#define ARM_LDR_IMM(p, rd, rn, imm) ARM_LDR_IMM_COND(p, rd, rn, imm, ARMCOND_AL)
|
|
|
|
#define ARM_LDRB_IMM_COND(p, rd, rn, imm, cond) \
|
|
ARM_EMIT(p, ARM_DEF_WXFER_IMM(imm, rd, rn, ARMOP_LDR, 0, 1, 1, cond))
|
|
|
|
#define ARM_LDRB_IMM(p, rd, rn, imm) ARM_LDRB_IMM_COND(p, rd, rn, imm, ARMCOND_AL)
|
|
|
|
/* STRx */
|
|
/* immediate offset, post-index */
|
|
#define ARM_STR_IMM_POST_COND(p, rd, rn, imm, cond) \
|
|
ARM_EMIT(p, ARM_DEF_WXFER_IMM(imm, rd, rn, ARMOP_STR, 0, 0, 0, cond))
|
|
|
|
#define ARM_STR_IMM_POST(p, rd, rn, imm) ARM_STR_IMM_POST_COND(p, rd, rn, imm, ARMCOND_AL)
|
|
|
|
#define ARM_STRB_IMM_POST_COND(p, rd, rn, imm, cond) \
|
|
ARM_EMIT(p, ARM_DEF_WXFER_IMM(imm, rd, rn, ARMOP_STR, 0, 1, 0, cond))
|
|
|
|
#define ARM_STRB_IMM_POST(p, rd, rn, imm) ARM_STRB_IMM_POST_COND(p, rd, rn, imm, ARMCOND_AL)
|
|
|
|
/* immediate offset, pre-index */
|
|
#define ARM_STR_IMM_COND(p, rd, rn, imm, cond) \
|
|
ARM_EMIT_WXFER_IMM(p, imm, rd, rn, ARMOP_STR, 0, 0, 1, cond)
|
|
/* ARM_EMIT(p, ARM_DEF_WXFER_IMM(imm, rd, rn, ARMOP_STR, 0, 0, 1, cond)) */
|
|
|
|
#define ARM_STR_IMM(p, rd, rn, imm) ARM_STR_IMM_COND(p, rd, rn, imm, ARMCOND_AL)
|
|
|
|
#define ARM_STRB_IMM_COND(p, rd, rn, imm, cond) \
|
|
ARM_EMIT(p, ARM_DEF_WXFER_IMM(imm, rd, rn, ARMOP_STR, 0, 1, 1, cond))
|
|
|
|
#define ARM_STRB_IMM(p, rd, rn, imm) ARM_STRB_IMM_COND(p, rd, rn, imm, ARMCOND_AL)
|
|
|
|
/* write-back */
|
|
#define ARM_STR_IMM_WB_COND(p, rd, rn, imm, cond) \
|
|
ARM_EMIT_WXFER_IMM(p, imm, rd, rn, ARMOP_STR, 1, 0, 1, cond)
|
|
#define ARM_STR_IMM_WB(p, rd, rn, imm) ARM_STR_IMM_WB_COND(p, rd, rn, imm, ARMCOND_AL)
|
|
|
|
|
|
#define ARM_DEF_WXFER_REG_REG_UPDOWN_COND(rm, shift_type, shift, rd, rn, ls, wb, b, u, p, cond) \
|
|
(rm) | \
|
|
((shift_type) << 5) | \
|
|
((shift) << 7) | \
|
|
((rd) << 12) | \
|
|
((rn) << 16) | \
|
|
((ls) << 20) | \
|
|
((wb) << 21) | \
|
|
((b) << 22) | \
|
|
((u) << 23) | \
|
|
((p) << 24) | \
|
|
(1 << 25) | \
|
|
ARM_WXFER_TAG | \
|
|
ARM_DEF_COND(cond)
|
|
|
|
#define ARM_DEF_WXFER_REG_REG_COND(rm, shift_type, shift, rd, rn, ls, wb, b, p, cond) \
|
|
ARM_DEF_WXFER_REG_REG_UPDOWN_COND(rm, shift_type, shift, rd, rn, ls, wb, b, ARM_UP, p, cond)
|
|
#define ARM_DEF_WXFER_REG_MINUS_REG_COND(rm, shift_type, shift, rd, rn, ls, wb, b, p, cond) \
|
|
ARM_DEF_WXFER_REG_REG_UPDOWN_COND(rm, shift_type, shift, rd, rn, ls, wb, b, ARM_DOWN, p, cond)
|
|
|
|
|
|
#define ARM_LDR_REG_REG_SHIFT_COND(p, rd, rn, rm, shift_type, shift, cond) \
|
|
ARM_EMIT(p, ARM_DEF_WXFER_REG_REG_COND(rm, shift_type, shift, rd, rn, ARMOP_LDR, 0, 0, 1, cond))
|
|
#define ARM_LDR_REG_REG_SHIFT(p, rd, rn, rm, shift_type, shift) \
|
|
ARM_LDR_REG_REG_SHIFT_COND(p, rd, rn, rm, shift_type, shift, ARMCOND_AL)
|
|
#define ARM_LDR_REG_REG(p, rd, rn, rm) \
|
|
ARM_LDR_REG_REG_SHIFT(p, rd, rn, rm, ARMSHIFT_LSL, 0)
|
|
|
|
#define ARM_LDRB_REG_REG_SHIFT_COND(p, rd, rn, rm, shift_type, shift, cond) \
|
|
ARM_EMIT(p, ARM_DEF_WXFER_REG_REG_COND(rm, shift_type, shift, rd, rn, ARMOP_LDR, 0, 1, 1, cond))
|
|
#define ARM_LDRB_REG_REG_SHIFT(p, rd, rn, rm, shift_type, shift) \
|
|
ARM_LDRB_REG_REG_SHIFT_COND(p, rd, rn, rm, shift_type, shift, ARMCOND_AL)
|
|
#define ARM_LDRB_REG_REG(p, rd, rn, rm) \
|
|
ARM_LDRB_REG_REG_SHIFT(p, rd, rn, rm, ARMSHIFT_LSL, 0)
|
|
|
|
#define ARM_STR_REG_REG_SHIFT_COND(p, rd, rn, rm, shift_type, shift, cond) \
|
|
ARM_EMIT(p, ARM_DEF_WXFER_REG_REG_COND(rm, shift_type, shift, rd, rn, ARMOP_STR, 0, 0, 1, cond))
|
|
#define ARM_STR_REG_REG_SHIFT(p, rd, rn, rm, shift_type, shift) \
|
|
ARM_STR_REG_REG_SHIFT_COND(p, rd, rn, rm, shift_type, shift, ARMCOND_AL)
|
|
#define ARM_STR_REG_REG(p, rd, rn, rm) \
|
|
ARM_STR_REG_REG_SHIFT(p, rd, rn, rm, ARMSHIFT_LSL, 0)
|
|
|
|
/* zero-extend */
|
|
#define ARM_STRB_REG_REG_SHIFT_COND(p, rd, rn, rm, shift_type, shift, cond) \
|
|
ARM_EMIT(p, ARM_DEF_WXFER_REG_REG_COND(rm, shift_type, shift, rd, rn, ARMOP_STR, 0, 1, 1, cond))
|
|
#define ARM_STRB_REG_REG_SHIFT(p, rd, rn, rm, shift_type, shift) \
|
|
ARM_STRB_REG_REG_SHIFT_COND(p, rd, rn, rm, shift_type, shift, ARMCOND_AL)
|
|
#define ARM_STRB_REG_REG(p, rd, rn, rm) \
|
|
ARM_STRB_REG_REG_SHIFT(p, rd, rn, rm, ARMSHIFT_LSL, 0)
|
|
|
|
|
|
/* ARMv4+ */
|
|
/* Half-word or byte (signed) transfer. */
|
|
typedef struct {
|
|
arminstr_t rm : 4; /* imm_lo */
|
|
arminstr_t tag3 : 1; /* 1 */
|
|
arminstr_t h : 1; /* half-word or byte */
|
|
arminstr_t s : 1; /* sign-extend or zero-extend */
|
|
arminstr_t tag2 : 1; /* 1 */
|
|
arminstr_t imm_hi : 4;
|
|
arminstr_t rd : 4;
|
|
arminstr_t rn : 4;
|
|
arminstr_t ls : 1;
|
|
arminstr_t wb : 1;
|
|
arminstr_t type : 1; /* imm(1) / reg(0) */
|
|
arminstr_t u : 1; /* +- */
|
|
arminstr_t p : 1; /* pre/post-index */
|
|
arminstr_t tag : 3;
|
|
arminstr_t cond : 4;
|
|
} ARMInstrHXfer;
|
|
|
|
#define ARM_HXFER_ID 0
|
|
#define ARM_HXFER_ID2 1
|
|
#define ARM_HXFER_ID3 1
|
|
#define ARM_HXFER_MASK ((0x7 << 25) | (0x9 << 4))
|
|
#define ARM_HXFER_TAG ((ARM_HXFER_ID << 25) | (ARM_HXFER_ID2 << 7) | (ARM_HXFER_ID3 << 4))
|
|
|
|
#define ARM_DEF_HXFER_IMM_COND(imm, h, s, rd, rn, ls, wb, p, cond) \
|
|
((imm) < 0?(-(imm)) & 0xF:(imm) & 0xF) | \
|
|
((h) << 5) | \
|
|
((s) << 6) | \
|
|
((imm) < 0?((-(imm)) << 4) & 0xF00:((imm) << 4) & 0xF00) | \
|
|
((rd) << 12) | \
|
|
((rn) << 16) | \
|
|
((ls) << 20) | \
|
|
((wb) << 21) | \
|
|
(1 << 22) | \
|
|
(((int)(imm) >= 0) << 23) | \
|
|
((p) << 24) | \
|
|
ARM_HXFER_TAG | \
|
|
ARM_DEF_COND(cond)
|
|
|
|
#define ARM_LDRH_IMM_COND(p, rd, rn, imm, cond) \
|
|
ARM_EMIT(p, ARM_DEF_HXFER_IMM_COND(imm, 1, 0, rd, rn, ARMOP_LDR, 0, 1, cond))
|
|
#define ARM_LDRH_IMM(p, rd, rn, imm) \
|
|
ARM_LDRH_IMM_COND(p, rd, rn, imm, ARMCOND_AL)
|
|
#define ARM_LDRSH_IMM_COND(p, rd, rn, imm, cond) \
|
|
ARM_EMIT(p, ARM_DEF_HXFER_IMM_COND(imm, 1, 1, rd, rn, ARMOP_LDR, 0, 1, cond))
|
|
#define ARM_LDRSH_IMM(p, rd, rn, imm) \
|
|
ARM_LDRSH_IMM_COND(p, rd, rn, imm, ARMCOND_AL)
|
|
#define ARM_LDRSB_IMM_COND(p, rd, rn, imm, cond) \
|
|
ARM_EMIT(p, ARM_DEF_HXFER_IMM_COND(imm, 0, 1, rd, rn, ARMOP_LDR, 0, 1, cond))
|
|
#define ARM_LDRSB_IMM(p, rd, rn, imm) \
|
|
ARM_LDRSB_IMM_COND(p, rd, rn, imm, ARMCOND_AL)
|
|
|
|
|
|
#define ARM_STRH_IMM_COND(p, rd, rn, imm, cond) \
|
|
ARM_EMIT(p, ARM_DEF_HXFER_IMM_COND(imm, 1, 0, rd, rn, ARMOP_STR, 0, 1, cond))
|
|
#define ARM_STRH_IMM(p, rd, rn, imm) \
|
|
ARM_STRH_IMM_COND(p, rd, rn, imm, ARMCOND_AL)
|
|
|
|
|
|
#define ARM_DEF_HXFER_REG_REG_UPDOWN_COND(rm, h, s, rd, rn, ls, wb, u, p, cond) \
|
|
((rm) & 0xF) | \
|
|
((h) << 5) | \
|
|
((s) << 6) | \
|
|
((rd) << 12) | \
|
|
((rn) << 16) | \
|
|
((ls) << 20) | \
|
|
((wb) << 21) | \
|
|
(0 << 22) | \
|
|
((u) << 23) | \
|
|
((p) << 24) | \
|
|
ARM_HXFER_TAG | \
|
|
ARM_DEF_COND(cond)
|
|
|
|
#define ARM_DEF_HXFER_REG_REG_COND(rm, h, s, rd, rn, ls, wb, p, cond) \
|
|
ARM_DEF_HXFER_REG_REG_UPDOWN_COND(rm, h, s, rd, rn, ls, wb, ARM_UP, p, cond)
|
|
#define ARM_DEF_HXFER_REG_MINUS_REG_COND(rm, h, s, rd, rn, ls, wb, p, cond) \
|
|
ARM_DEF_HXFER_REG_REG_UPDOWN_COND(rm, h, s, rd, rn, ls, wb, ARM_DOWN, p, cond)
|
|
|
|
#define ARM_LDRH_REG_REG_COND(p, rd, rm, rn, cond) \
|
|
ARM_EMIT(p, ARM_DEF_HXFER_REG_REG_COND(rm, 1, 0, rd, rn, ARMOP_LDR, 0, 1, cond))
|
|
#define ARM_LDRH_REG_REG(p, rd, rm, rn) \
|
|
ARM_LDRH_REG_REG_COND(p, rd, rm, rn, ARMCOND_AL)
|
|
#define ARM_LDRSH_REG_REG_COND(p, rd, rm, rn, cond) \
|
|
ARM_EMIT(p, ARM_DEF_HXFER_REG_REG_COND(rm, 1, 1, rd, rn, ARMOP_LDR, 0, 1, cond))
|
|
#define ARM_LDRSH_REG_REG(p, rd, rm, rn) \
|
|
ARM_LDRSH_REG_REG_COND(p, rd, rm, rn, ARMCOND_AL)
|
|
#define ARM_LDRSB_REG_REG_COND(p, rd, rm, rn, cond) \
|
|
ARM_EMIT(p, ARM_DEF_HXFER_REG_REG_COND(rm, 0, 1, rd, rn, ARMOP_LDR, 0, 1, cond))
|
|
#define ARM_LDRSB_REG_REG(p, rd, rm, rn) ARM_LDRSB_REG_REG_COND(p, rd, rm, rn, ARMCOND_AL)
|
|
|
|
#define ARM_STRH_REG_REG_COND(p, rd, rm, rn, cond) \
|
|
ARM_EMIT(p, ARM_DEF_HXFER_REG_REG_COND(rm, 1, 0, rd, rn, ARMOP_STR, 0, 1, cond))
|
|
#define ARM_STRH_REG_REG(p, rd, rm, rn) \
|
|
ARM_STRH_REG_REG_COND(p, rd, rm, rn, ARMCOND_AL)
|
|
|
|
|
|
|
|
/* Swap */
|
|
typedef struct {
|
|
arminstr_t rm : 4;
|
|
arminstr_t tag3 : 8; /* 0x9 */
|
|
arminstr_t rd : 4;
|
|
arminstr_t rn : 4;
|
|
arminstr_t tag2 : 2;
|
|
arminstr_t b : 1;
|
|
arminstr_t tag : 5; /* 0x2 */
|
|
arminstr_t cond : 4;
|
|
} ARMInstrSwap;
|
|
|
|
#define ARM_SWP_ID 2
|
|
#define ARM_SWP_ID2 9
|
|
#define ARM_SWP_MASK ((0x1F << 23) | (3 << 20) | (0xFF << 4))
|
|
#define ARM_SWP_TAG ((ARM_SWP_ID << 23) | (ARM_SWP_ID2 << 4))
|
|
|
|
|
|
|
|
/* Software interrupt */
|
|
typedef struct {
|
|
arminstr_t num : 24;
|
|
arminstr_t tag : 4;
|
|
arminstr_t cond : 4;
|
|
} ARMInstrSWI;
|
|
|
|
#define ARM_SWI_ID 0xF
|
|
#define ARM_SWI_MASK (0xF << 24)
|
|
#define ARM_SWI_TAG (ARM_SWI_ID << 24)
|
|
|
|
|
|
|
|
/* Co-processor Data Processing */
|
|
typedef struct {
|
|
arminstr_t crm : 4;
|
|
arminstr_t tag2 : 1; /* 0 */
|
|
arminstr_t op2 : 3;
|
|
arminstr_t cpn : 4; /* CP number */
|
|
arminstr_t crd : 4;
|
|
arminstr_t crn : 4;
|
|
arminstr_t op : 4;
|
|
arminstr_t tag : 4; /* 0xE */
|
|
arminstr_t cond : 4;
|
|
} ARMInstrCDP;
|
|
|
|
#define ARM_CDP_ID 0xE
|
|
#define ARM_CDP_ID2 0
|
|
#define ARM_CDP_MASK ((0xF << 24) | (1 << 4))
|
|
#define ARM_CDP_TAG ((ARM_CDP_ID << 24) | (ARM_CDP_ID2 << 4))
|
|
|
|
|
|
/* Co-processor Data Transfer (ldc/stc) */
|
|
typedef struct {
|
|
arminstr_t offs : 8;
|
|
arminstr_t cpn : 4;
|
|
arminstr_t crd : 4;
|
|
arminstr_t rn : 4;
|
|
arminstr_t ls : 1;
|
|
arminstr_t wb : 1;
|
|
arminstr_t n : 1;
|
|
arminstr_t u : 1;
|
|
arminstr_t p : 1;
|
|
arminstr_t tag : 3;
|
|
arminstr_t cond : 4;
|
|
} ARMInstrCDT;
|
|
|
|
#define ARM_CDT_ID 6
|
|
#define ARM_CDT_MASK (7 << 25)
|
|
#define ARM_CDT_TAG (ARM_CDT_ID << 25)
|
|
|
|
|
|
/* Co-processor Register Transfer (mcr/mrc) */
|
|
typedef struct {
|
|
arminstr_t crm : 4;
|
|
arminstr_t tag2 : 1;
|
|
arminstr_t op2 : 3;
|
|
arminstr_t cpn : 4;
|
|
arminstr_t rd : 4;
|
|
arminstr_t crn : 4;
|
|
arminstr_t ls : 1;
|
|
arminstr_t op1 : 3;
|
|
arminstr_t tag : 4;
|
|
arminstr_t cond : 4;
|
|
} ARMInstrCRT;
|
|
|
|
#define ARM_CRT_ID 0xE
|
|
#define ARM_CRT_ID2 0x1
|
|
#define ARM_CRT_MASK ((0xF << 24) | (1 << 4))
|
|
#define ARM_CRT_TAG ((ARM_CRT_ID << 24) | (ARM_CRT_ID2 << 4))
|
|
|
|
/* Move register to PSR. */
|
|
typedef union {
|
|
ARMDPI_op2_imm op2_imm;
|
|
struct {
|
|
arminstr_t rm : 4;
|
|
arminstr_t pad : 8; /* 0 */
|
|
arminstr_t tag4 : 4; /* 0xF */
|
|
arminstr_t fld : 4;
|
|
arminstr_t tag3 : 2; /* 0x2 */
|
|
arminstr_t sel : 1;
|
|
arminstr_t tag2 : 2; /* 0x2 */
|
|
arminstr_t type : 1;
|
|
arminstr_t tag : 2; /* 0 */
|
|
arminstr_t cond : 4;
|
|
} all;
|
|
} ARMInstrMSR;
|
|
|
|
#define ARM_MSR_ID 0
|
|
#define ARM_MSR_ID2 2
|
|
#define ARM_MSR_ID3 2
|
|
#define ARM_MSR_ID4 0xF
|
|
#define ARM_MSR_MASK ((3 << 26) | \
|
|
(3 << 23) | \
|
|
(3 << 20) | \
|
|
(0xF << 12))
|
|
#define ARM_MSR_TAG ((ARM_MSR_ID << 26) | \
|
|
(ARM_MSR_ID2 << 23) | \
|
|
(ARM_MSR_ID3 << 20) | \
|
|
(ARM_MSR_ID4 << 12))
|
|
|
|
|
|
/* Move PSR to register. */
|
|
typedef struct {
|
|
arminstr_t tag3 : 12;
|
|
arminstr_t rd : 4;
|
|
arminstr_t tag2 : 6;
|
|
arminstr_t sel : 1; /* CPSR | SPSR */
|
|
arminstr_t tag : 5;
|
|
arminstr_t cond : 4;
|
|
} ARMInstrMRS;
|
|
|
|
#define ARM_MRS_ID 2
|
|
#define ARM_MRS_ID2 0xF
|
|
#define ARM_MRS_ID3 0
|
|
#define ARM_MRS_MASK ((0x1F << 23) | (0x3F << 16) | 0xFFF)
|
|
#define ARM_MRS_TAG ((ARM_MRS_ID << 23) | (ARM_MRS_ID2 << 16) | ARM_MRS_ID3)
|
|
|
|
|
|
|
|
#include "mono/arch/arm/arm_dpimacros.h"
|
|
|
|
#define ARM_NOP(p) ARM_MOV_REG_REG(p, ARMREG_R0, ARMREG_R0)
|
|
|
|
|
|
#define ARM_SHL_IMM_COND(p, rd, rm, imm, cond) \
|
|
ARM_MOV_REG_IMMSHIFT_COND(p, rd, rm, ARMSHIFT_LSL, imm, cond)
|
|
#define ARM_SHL_IMM(p, rd, rm, imm) \
|
|
ARM_SHL_IMM_COND(p, rd, rm, imm, ARMCOND_AL)
|
|
#define ARM_SHLS_IMM_COND(p, rd, rm, imm, cond) \
|
|
ARM_MOVS_REG_IMMSHIFT_COND(p, rd, rm, ARMSHIFT_LSL, imm, cond)
|
|
#define ARM_SHLS_IMM(p, rd, rm, imm) \
|
|
ARM_SHLS_IMM_COND(p, rd, rm, imm, ARMCOND_AL)
|
|
|
|
#define ARM_SHR_IMM_COND(p, rd, rm, imm, cond) \
|
|
ARM_MOV_REG_IMMSHIFT_COND(p, rd, rm, ARMSHIFT_LSR, imm, cond)
|
|
#define ARM_SHR_IMM(p, rd, rm, imm) \
|
|
ARM_SHR_IMM_COND(p, rd, rm, imm, ARMCOND_AL)
|
|
#define ARM_SHRS_IMM_COND(p, rd, rm, imm, cond) \
|
|
ARM_MOVS_REG_IMMSHIFT_COND(p, rd, rm, ARMSHIFT_LSR, imm, cond)
|
|
#define ARM_SHRS_IMM(p, rd, rm, imm) \
|
|
ARM_SHRS_IMM_COND(p, rd, rm, imm, ARMCOND_AL)
|
|
|
|
#define ARM_SAR_IMM_COND(p, rd, rm, imm, cond) \
|
|
ARM_MOV_REG_IMMSHIFT_COND(p, rd, rm, ARMSHIFT_ASR, imm, cond)
|
|
#define ARM_SAR_IMM(p, rd, rm, imm) \
|
|
ARM_SAR_IMM_COND(p, rd, rm, imm, ARMCOND_AL)
|
|
#define ARM_SARS_IMM_COND(p, rd, rm, imm, cond) \
|
|
ARM_MOVS_REG_IMMSHIFT_COND(p, rd, rm, ARMSHIFT_ASR, imm, cond)
|
|
#define ARM_SARS_IMM(p, rd, rm, imm) \
|
|
ARM_SARS_IMM_COND(p, rd, rm, imm, ARMCOND_AL)
|
|
|
|
#define ARM_ROR_IMM_COND(p, rd, rm, imm, cond) \
|
|
ARM_MOV_REG_IMMSHIFT_COND(p, rd, rm, ARMSHIFT_ROR, imm, cond)
|
|
#define ARM_ROR_IMM(p, rd, rm, imm) \
|
|
ARM_ROR_IMM_COND(p, rd, rm, imm, ARMCOND_AL)
|
|
#define ARM_RORS_IMM_COND(p, rd, rm, imm, cond) \
|
|
ARM_MOVS_REG_IMMSHIFT_COND(p, rd, rm, ARMSHIFT_ROR, imm, cond)
|
|
#define ARM_RORS_IMM(p, rd, rm, imm) \
|
|
ARM_RORS_IMM_COND(p, rd, rm, imm, ARMCOND_AL)
|
|
|
|
#define ARM_SHL_REG_COND(p, rd, rm, rs, cond) \
|
|
ARM_MOV_REG_REGSHIFT_COND(p, rd, rm, ARMSHIFT_LSL, rs, cond)
|
|
#define ARM_SHL_REG(p, rd, rm, rs) \
|
|
ARM_SHL_REG_COND(p, rd, rm, rs, ARMCOND_AL)
|
|
#define ARM_SHLS_REG_COND(p, rd, rm, rs, cond) \
|
|
ARM_MOVS_REG_REGSHIFT_COND(p, rd, rm, ARMSHIFT_LSL, rs, cond)
|
|
#define ARM_SHLS_REG(p, rd, rm, rs) \
|
|
ARM_SHLS_REG_COND(p, rd, rm, rs, ARMCOND_AL)
|
|
#define ARM_SHLS_REG_REG(p, rd, rm, rs) ARM_SHLS_REG(p, rd, rm, rs)
|
|
|
|
#define ARM_SHR_REG_COND(p, rd, rm, rs, cond) \
|
|
ARM_MOV_REG_REGSHIFT_COND(p, rd, rm, ARMSHIFT_LSR, rs, cond)
|
|
#define ARM_SHR_REG(p, rd, rm, rs) \
|
|
ARM_SHR_REG_COND(p, rd, rm, rs, ARMCOND_AL)
|
|
#define ARM_SHRS_REG_COND(p, rd, rm, rs, cond) \
|
|
ARM_MOVS_REG_REGSHIFT_COND(p, rd, rm, ARMSHIFT_LSR, rs, cond)
|
|
#define ARM_SHRS_REG(p, rd, rm, rs) \
|
|
ARM_SHRS_REG_COND(p, rd, rm, rs, ARMCOND_AL)
|
|
#define ARM_SHRS_REG_REG(p, rd, rm, rs) ARM_SHRS_REG(p, rd, rm, rs)
|
|
|
|
#define ARM_SAR_REG_COND(p, rd, rm, rs, cond) \
|
|
ARM_MOV_REG_REGSHIFT_COND(p, rd, rm, ARMSHIFT_ASR, rs, cond)
|
|
#define ARM_SAR_REG(p, rd, rm, rs) \
|
|
ARM_SAR_REG_COND(p, rd, rm, rs, ARMCOND_AL)
|
|
#define ARM_SARS_REG_COND(p, rd, rm, rs, cond) \
|
|
ARM_MOVS_REG_REGSHIFT_COND(p, rd, rm, ARMSHIFT_ASR, rs, cond)
|
|
#define ARM_SARS_REG(p, rd, rm, rs) \
|
|
ARM_SARS_REG_COND(p, rd, rm, rs, ARMCOND_AL)
|
|
#define ARM_SARS_REG_REG(p, rd, rm, rs) ARM_SARS_REG(p, rd, rm, rs)
|
|
|
|
#define ARM_ROR_REG_COND(p, rd, rm, rs, cond) \
|
|
ARM_MOV_REG_REGSHIFT_COND(p, rd, rm, ARMSHIFT_ROR, rs, cond)
|
|
#define ARM_ROR_REG(p, rd, rm, rs) \
|
|
ARM_ROR_REG_COND(p, rd, rm, rs, ARMCOND_AL)
|
|
#define ARM_RORS_REG_COND(p, rd, rm, rs, cond) \
|
|
ARM_MOVS_REG_REGSHIFT_COND(p, rd, rm, ARMSHIFT_ROR, rs, cond)
|
|
#define ARM_RORS_REG(p, rd, rm, rs) \
|
|
ARM_RORS_REG_COND(p, rd, rm, rs, ARMCOND_AL)
|
|
#define ARM_RORS_REG_REG(p, rd, rm, rs) ARM_RORS_REG(p, rd, rm, rs)
|
|
|
|
#ifdef __native_client_codegen__
|
|
#define ARM_DBRK(p) ARM_EMIT(p, 0xE7FEDEF0)
|
|
#else
|
|
#define ARM_DBRK(p) ARM_EMIT(p, 0xE6000010)
|
|
#endif
|
|
#define ARM_IASM_DBRK() ARM_IASM_EMIT(0xE6000010)
|
|
|
|
#define ARM_INC(p, reg) ARM_ADD_REG_IMM8(p, reg, reg, 1)
|
|
#define ARM_DEC(p, reg) ARM_SUB_REG_IMM8(p, reg, reg, 1)
|
|
|
|
#define ARM_MLS(p, rd, rn, rm, ra) ARM_EMIT((p), (ARMCOND_AL << 28) | (0x6 << 20) | ((rd) << 16) | ((ra) << 12) | ((rm) << 8) | (0x9 << 4) | ((rn) << 0))
|
|
|
|
/* ARM V5 */
|
|
|
|
/* Count leading zeros, CLZ{cond} Rd, Rm */
|
|
typedef struct {
|
|
arminstr_t rm : 4;
|
|
arminstr_t tag2 : 8;
|
|
arminstr_t rd : 4;
|
|
arminstr_t tag : 12;
|
|
arminstr_t cond : 4;
|
|
} ARMInstrCLZ;
|
|
|
|
#define ARM_CLZ_ID 0x16F
|
|
#define ARM_CLZ_ID2 0xF1
|
|
#define ARM_CLZ_MASK ((0xFFF << 16) | (0xFF < 4))
|
|
#define ARM_CLZ_TAG ((ARM_CLZ_ID << 16) | (ARM_CLZ_ID2 << 4))
|
|
|
|
|
|
|
|
|
|
typedef union {
|
|
ARMInstrBR br;
|
|
ARMInstrDPI dpi;
|
|
ARMInstrMRT mrt;
|
|
ARMInstrMul mul;
|
|
ARMInstrWXfer wxfer;
|
|
ARMInstrHXfer hxfer;
|
|
ARMInstrSwap swp;
|
|
ARMInstrCDP cdp;
|
|
ARMInstrCDT cdt;
|
|
ARMInstrCRT crt;
|
|
ARMInstrSWI swi;
|
|
ARMInstrMSR msr;
|
|
ARMInstrMRS mrs;
|
|
ARMInstrCLZ clz;
|
|
|
|
ARMInstrGeneric generic;
|
|
arminstr_t raw;
|
|
} ARMInstr;
|
|
|
|
/* ARMv6t2 */
|
|
|
|
#define ARM_MOVW_REG_IMM_COND(p, rd, imm16, cond) ARM_EMIT(p, (((cond) << 28) | (3 << 24) | (0 << 20) | ((((guint32)(imm16)) >> 12) << 16) | ((rd) << 12) | (((guint32)(imm16)) & 0xfff)))
|
|
#define ARM_MOVW_REG_IMM(p, rd, imm16) ARM_MOVW_REG_IMM_COND ((p), (rd), (imm16), ARMCOND_AL)
|
|
|
|
#define ARM_MOVT_REG_IMM_COND(p, rd, imm16, cond) ARM_EMIT(p, (((cond) << 28) | (3 << 24) | (4 << 20) | ((((guint32)(imm16)) >> 12) << 16) | ((rd) << 12) | (((guint32)(imm16)) & 0xfff)))
|
|
#define ARM_MOVT_REG_IMM(p, rd, imm16) ARM_MOVT_REG_IMM_COND ((p), (rd), (imm16), ARMCOND_AL)
|
|
|
|
/* MCR */
|
|
#define ARM_DEF_MCR_COND(coproc, opc1, rt, crn, crm, opc2, cond) \
|
|
ARM_DEF_COND ((cond)) | ((0xe << 24) | (((opc1) & 0x7) << 21) | (0 << 20) | (((crn) & 0xf) << 16) | (((rt) & 0xf) << 12) | (((coproc) & 0xf) << 8) | (((opc2) & 0x7) << 5) | (1 << 4) | (((crm) & 0xf) << 0))
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#define ARM_MCR_COND(p, coproc, opc1, rt, crn, crm, opc2, cond) \
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ARM_EMIT(p, ARM_DEF_MCR_COND ((coproc), (opc1), (rt), (crn), (crm), (opc2), (cond)))
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#define ARM_MCR(p, coproc, opc1, rt, crn, crm, opc2) \
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ARM_MCR_COND ((p), (coproc), (opc1), (rt), (crn), (crm), (opc2), ARMCOND_AL)
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/* ARMv7VE */
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#define ARM_SDIV_COND(p, rd, rn, rm, cond) ARM_EMIT (p, (((cond) << 28) | (0xe << 23) | (0x1 << 20) | ((rd) << 16) | (0xf << 12) | ((rm) << 8) | (0x0 << 5) | (0x1 << 4) | ((rn) << 0)))
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#define ARM_SDIV(p, rd, rn, rm) ARM_SDIV_COND ((p), (rd), (rn), (rm), ARMCOND_AL)
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#define ARM_UDIV_COND(p, rd, rn, rm, cond) ARM_EMIT (p, (((cond) << 28) | (0xe << 23) | (0x3 << 20) | ((rd) << 16) | (0xf << 12) | ((rm) << 8) | (0x0 << 5) | (0x1 << 4) | ((rn) << 0)))
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#define ARM_UDIV(p, rd, rn, rm) ARM_UDIV_COND ((p), (rd), (rn), (rm), ARMCOND_AL)
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/* ARMv7 */
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typedef enum {
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ARM_DMB_SY = 0xf,
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} ArmDmbFlags;
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#define ARM_DMB(p, option) ARM_EMIT ((p), ((0xf << 28) | (0x57 << 20) | (0xf << 16) | (0xf << 12) | (0x0 << 8) | (0x5 << 4) | ((option) << 0)))
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#define ARM_LDREX_REG(p, rt, rn) ARM_EMIT ((p), ((ARMCOND_AL << 28) | (0xc << 21) | (0x1 << 20) | ((rn) << 16) | ((rt) << 12)) | (0xf << 8) | (0x9 << 4) | 0xf << 0)
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#define ARM_STREX_REG(p, rd, rt, rn) ARM_EMIT ((p), ((ARMCOND_AL << 28) | (0xc << 21) | (0x0 << 20) | ((rn) << 16) | ((rd) << 12)) | (0xf << 8) | (0x9 << 4) | ((rt) << 0))
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#ifdef __cplusplus
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}
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#endif
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#endif /* ARM_H */
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