text: /*
   *    Stack-less Just-In-Time compiler
   *
   *    Copyright Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without modification, are
   * permitted provided that the following conditions are met:
   *
   *   1. Redistributions of source code must retain the above copyright notice, this list of
   *      conditions and the following disclaimer.
   *
   *   2. Redistributions in binary form must reproduce the above copyright notice, this list
   *      of conditions and the following disclaimer in the documentation and/or other materials
   *      provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
   * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
   * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
   * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  SLJIT_API_FUNC_ATTRIBUTE const char* sljit_get_platform_name(void)
  {
  #ifdef __SOFTFP__
  	return "ARM-Thumb2" SLJIT_CPUINFO " ABI:softfp";
  #else
  	return "ARM-Thumb2" SLJIT_CPUINFO " ABI:hardfp";
  #endif
  }
  
  /* Length of an instruction word. */
  typedef sljit_u32 sljit_ins;
  
  /* Last register + 1. */
  #define TMP_REG1	(SLJIT_NUMBER_OF_REGISTERS + 2)
  #define TMP_REG2	(SLJIT_NUMBER_OF_REGISTERS + 3)
  #define TMP_PC		(SLJIT_NUMBER_OF_REGISTERS + 4)
  
  #define TMP_FREG1	(SLJIT_NUMBER_OF_FLOAT_REGISTERS + 1)
  #define TMP_FREG2	(SLJIT_NUMBER_OF_FLOAT_REGISTERS + 2)
  
  /* See sljit_emit_enter and sljit_emit_op0 if you want to change them. */
  static const sljit_u8 reg_map[SLJIT_NUMBER_OF_REGISTERS + 5] = {
  	0, 0, 1, 2, 3, 11, 10, 9, 8, 7, 6, 5, 4, 13, 12, 14, 15
  };
  
  static const sljit_u8 freg_map[SLJIT_NUMBER_OF_FLOAT_REGISTERS + 3] = {
  	0, 0, 1, 2, 3, 4, 5, 6, 7
  };
  
  #define COPY_BITS(src, from, to, bits) \
  	((from >= to ? (src >> (from - to)) : (src << (to - from))) & (((1 << bits) - 1) << to))
  
  /* Thumb16 encodings. */
  #define RD3(rd) (reg_map[rd])
  #define RN3(rn) (reg_map[rn] << 3)
  #define RM3(rm) (reg_map[rm] << 6)
  #define RDN3(rdn) (reg_map[rdn] << 8)
  #define IMM3(imm) (imm << 6)
  #define IMM8(imm) (imm)
  
  /* Thumb16 helpers. */
  #define SET_REGS44(rd, rn) \
  	((reg_map[rn] << 3) | (reg_map[rd] & 0x7) | ((reg_map[rd] & 0x8) << 4))
  #define IS_2_LO_REGS(reg1, reg2) \
  	(reg_map[reg1] <= 7 && reg_map[reg2] <= 7)
  #define IS_3_LO_REGS(reg1, reg2, reg3) \
  	(reg_map[reg1] <= 7 && reg_map[reg2] <= 7 && reg_map[reg3] <= 7)
  
  /* Thumb32 encodings. */
  #define RD4(rd) (reg_map[rd] << 8)
  #define RN4(rn) (reg_map[rn] << 16)
  #define RM4(rm) (reg_map[rm])
  #define RT4(rt) (reg_map[rt] << 12)
  #define DD4(dd) (freg_map[dd] << 12)
  #define DN4(dn) (freg_map[dn] << 16)
  #define DM4(dm) (freg_map[dm])
  #define IMM5(imm) \
  	(COPY_BITS(imm, 2, 12, 3) | ((imm & 0x3) << 6))
  #define IMM12(imm) \
  	(COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff))
  
  /* --------------------------------------------------------------------- */
  /*  Instrucion forms                                                     */
  /* --------------------------------------------------------------------- */
  
  /* dot '.' changed to _
     I immediate form (possibly followed by number of immediate bits). */
  #define ADCI		0xf1400000
  #define ADCS		0x4140
  #define ADC_W		0xeb400000
  #define ADD		0x4400
  #define ADDS		0x1800
  #define ADDSI3		0x1c00
  #define ADDSI8		0x3000
  #define ADD_W		0xeb000000
  #define ADDWI		0xf2000000
  #define ADD_SP		0xb000
  #define ADD_W		0xeb000000
  #define ADD_WI		0xf1000000
  #define ANDI		0xf0000000
  #define ANDS		0x4000
  #define AND_W		0xea000000
  #define ASRS		0x4100
  #define ASRSI		0x1000
  #define ASR_W		0xfa40f000
  #define ASR_WI		0xea4f0020
  #define BCC		0xd000
  #define BICI		0xf0200000
  #define BKPT		0xbe00
  #define BLX		0x4780
  #define BX		0x4700
  #define CLZ		0xfab0f080
  #define CMNI_W		0xf1100f00
  #define CMP		0x4280
  #define CMPI		0x2800
  #define CMPI_W		0xf1b00f00
  #define CMP_X		0x4500
  #define CMP_W		0xebb00f00
  #define EORI		0xf0800000
  #define EORS		0x4040
  #define EOR_W		0xea800000
  #define IT		0xbf00
  #define LDRI		0xf8500800
  #define LSLS		0x4080
  #define LSLSI		0x0000
  #define LSL_W		0xfa00f000
  #define LSL_WI		0xea4f0000
  #define LSRS		0x40c0
  #define LSRSI		0x0800
  #define LSR_W		0xfa20f000
  #define LSR_WI		0xea4f0010
  #define MOV		0x4600
  #define MOVS		0x0000
  #define MOVSI		0x2000
  #define MOVT		0xf2c00000
  #define MOVW		0xf2400000
  #define MOV_W		0xea4f0000
  #define MOV_WI		0xf04f0000
  #define MUL		0xfb00f000
  #define MVNS		0x43c0
  #define MVN_W		0xea6f0000
  #define MVN_WI		0xf06f0000
  #define NOP		0xbf00
  #define ORNI		0xf0600000
  #define ORRI		0xf0400000
  #define ORRS		0x4300
  #define ORR_W		0xea400000
  #define POP		0xbc00
  #define POP_W		0xe8bd0000
  #define PUSH		0xb400
  #define PUSH_W		0xe92d0000
  #define RSB_WI		0xf1c00000
  #define RSBSI		0x4240
  #define SBCI		0xf1600000
  #define SBCS		0x4180
  #define SBC_W		0xeb600000
  #define SDIV		0xfb90f0f0
  #define SMULL		0xfb800000
  #define STR_SP		0x9000
  #define SUBS		0x1a00
  #define SUBSI3		0x1e00
  #define SUBSI8		0x3800
  #define SUB_W		0xeba00000
  #define SUBWI		0xf2a00000
  #define SUB_SP		0xb080
  #define SUB_WI		0xf1a00000
  #define SXTB		0xb240
  #define SXTB_W		0xfa4ff080
  #define SXTH		0xb200
  #define SXTH_W		0xfa0ff080
  #define TST		0x4200
  #define UDIV		0xfbb0f0f0
  #define UMULL		0xfba00000
  #define UXTB		0xb2c0
  #define UXTB_W		0xfa5ff080
  #define UXTH		0xb280
  #define UXTH_W		0xfa1ff080
  #define VABS_F32	0xeeb00ac0
  #define VADD_F32	0xee300a00
  #define VCMP_F32	0xeeb40a40
  #define VCVT_F32_S32	0xeeb80ac0
  #define VCVT_F64_F32	0xeeb70ac0
  #define VCVT_S32_F32	0xeebd0ac0
  #define VDIV_F32	0xee800a00
  #define VMOV_F32	0xeeb00a40
  #define VMOV		0xee000a10
  #define VMOV2		0xec400a10
  #define VMRS		0xeef1fa10
  #define VMUL_F32	0xee200a00
  #define VNEG_F32	0xeeb10a40
  #define VSTR_F32	0xed000a00
  #define VSUB_F32	0xee300a40
  
  static sljit_s32 push_inst16(struct sljit_compiler *compiler, sljit_ins inst)
  {
  	sljit_u16 *ptr;
  	SLJIT_ASSERT(!(inst & 0xffff0000));
  
  	ptr = (sljit_u16*)ensure_buf(compiler, sizeof(sljit_u16));
  	FAIL_IF(!ptr);
  	*ptr = inst;
  	compiler->size++;
  	return SLJIT_SUCCESS;
  }
  
  static sljit_s32 push_inst32(struct sljit_compiler *compiler, sljit_ins inst)
  {
  	sljit_u16 *ptr = (sljit_u16*)ensure_buf(compiler, sizeof(sljit_ins));
  	FAIL_IF(!ptr);
  	*ptr++ = inst >> 16;
  	*ptr = inst;
  	compiler->size += 2;
  	return SLJIT_SUCCESS;
  }
  
  static SLJIT_INLINE sljit_s32 emit_imm32_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_uw imm)
  {
  	FAIL_IF(push_inst32(compiler, MOVW | RD4(dst)
  		| COPY_BITS(imm, 12, 16, 4) | COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff)));
  	return push_inst32(compiler, MOVT | RD4(dst)
  		| COPY_BITS(imm, 12 + 16, 16, 4) | COPY_BITS(imm, 11 + 16, 26, 1) | COPY_BITS(imm, 8 + 16, 12, 3) | ((imm & 0xff0000) >> 16));
  }
  
  static SLJIT_INLINE void modify_imm32_const(sljit_u16 *inst, sljit_uw new_imm)
  {
  	sljit_s32 dst = inst[1] & 0x0f00;
  	SLJIT_ASSERT(((inst[0] & 0xfbf0) == (MOVW >> 16)) && ((inst[2] & 0xfbf0) == (MOVT >> 16)) && dst == (inst[3] & 0x0f00));
  	inst[0] = (MOVW >> 16) | COPY_BITS(new_imm, 12, 0, 4) | COPY_BITS(new_imm, 11, 10, 1);
  	inst[1] = dst | COPY_BITS(new_imm, 8, 12, 3) | (new_imm & 0xff);
  	inst[2] = (MOVT >> 16) | COPY_BITS(new_imm, 12 + 16, 0, 4) | COPY_BITS(new_imm, 11 + 16, 10, 1);
  	inst[3] = dst | COPY_BITS(new_imm, 8 + 16, 12, 3) | ((new_imm & 0xff0000) >> 16);
  }
  
  static SLJIT_INLINE sljit_s32 detect_jump_type(struct sljit_jump *jump, sljit_u16 *code_ptr, sljit_u16 *code, sljit_sw executable_offset)
  {
  	sljit_sw diff;
  
  	if (jump->flags & SLJIT_REWRITABLE_JUMP)
  		return 0;
  
  	if (jump->flags & JUMP_ADDR) {
  		/* Branch to ARM code is not optimized yet. */
  		if (!(jump->u.target & 0x1))
  			return 0;
  		diff = ((sljit_sw)jump->u.target - (sljit_sw)(code_ptr + 2) - executable_offset) >> 1;
  	}
  	else {
  		SLJIT_ASSERT(jump->flags & JUMP_LABEL);
  		diff = ((sljit_sw)(code + jump->u.label->size) - (sljit_sw)(code_ptr + 2)) >> 1;
  	}
  
  	if (jump->flags & IS_COND) {
  		SLJIT_ASSERT(!(jump->flags & IS_BL));
  		if (diff <= 127 && diff >= -128) {
  			jump->flags |= PATCH_TYPE1;
  			return 5;
  		}
  		if (diff <= 524287 && diff >= -524288) {
  			jump->flags |= PATCH_TYPE2;
  			return 4;
  		}
  		/* +1 comes from the prefix IT instruction. */
  		diff--;
  		if (diff <= 8388607 && diff >= -8388608) {
  			jump->flags |= PATCH_TYPE3;
  			return 3;
  		}
  	}
  	else if (jump->flags & IS_BL) {
  		if (diff <= 8388607 && diff >= -8388608) {
  			jump->flags |= PATCH_BL;
  			return 3;
  		}
  	}
  	else {
  		if (diff <= 1023 && diff >= -1024) {
  			jump->flags |= PATCH_TYPE4;
  			return 4;
  		}
  		if (diff <= 8388607 && diff >= -8388608) {
  			jump->flags |= PATCH_TYPE5;
  			return 3;
  		}
  	}
  
  	return 0;
  }
  
  static SLJIT_INLINE void set_jump_instruction(struct sljit_jump *jump, sljit_sw executable_offset)
  {
  	sljit_s32 type = (jump->flags >> 4) & 0xf;
  	sljit_sw diff;
  	sljit_u16 *jump_inst;
  	sljit_s32 s, j1, j2;
  
  	if (SLJIT_UNLIKELY(type == 0)) {
  		modify_imm32_const((sljit_u16*)jump->addr, (jump->flags & JUMP_LABEL) ? jump->u.label->addr : jump->u.target);
  		return;
  	}
  
  	if (jump->flags & JUMP_ADDR) {
  		SLJIT_ASSERT(jump->u.target & 0x1);
  		diff = ((sljit_sw)jump->u.target - (sljit_sw)(jump->addr + sizeof(sljit_u32)) - executable_offset) >> 1;
  	}
  	else {
  		SLJIT_ASSERT(jump->u.label->addr & 0x1);
  		diff = ((sljit_sw)(jump->u.label->addr) - (sljit_sw)(jump->addr + sizeof(sljit_u32)) - executable_offset) >> 1;
  	}
  	jump_inst = (sljit_u16*)jump->addr;
  
  	switch (type) {
  	case 1:
  		/* Encoding T1 of 'B' instruction */
  		SLJIT_ASSERT(diff <= 127 && diff >= -128 && (jump->flags & IS_COND));
  		jump_inst[0] = 0xd000 | (jump->flags & 0xf00) | (diff & 0xff);
  		return;
  	case 2:
  		/* Encoding T3 of 'B' instruction */
  		SLJIT_ASSERT(diff <= 524287 && diff >= -524288 && (jump->flags & IS_COND));
  		jump_inst[0] = 0xf000 | COPY_BITS(jump->flags, 8, 6, 4) | COPY_BITS(diff, 11, 0, 6) | COPY_BITS(diff, 19, 10, 1);
  		jump_inst[1] = 0x8000 | COPY_BITS(diff, 17, 13, 1) | COPY_BITS(diff, 18, 11, 1) | (diff & 0x7ff);
  		return;
  	case 3:
  		SLJIT_ASSERT(jump->flags & IS_COND);
  		*jump_inst++ = IT | ((jump->flags >> 4) & 0xf0) | 0x8;
  		diff--;
  		type = 5;
  		break;
  	case 4:
  		/* Encoding T2 of 'B' instruction */
  		SLJIT_ASSERT(diff <= 1023 && diff >= -1024 && !(jump->flags & IS_COND));
  		jump_inst[0] = 0xe000 | (diff & 0x7ff);
  		return;
  	}
  
  	SLJIT_ASSERT(diff <= 8388607 && diff >= -8388608);
  
  	/* Really complex instruction form for branches. */
  	s = (diff >> 23) & 0x1;
  	j1 = (~(diff >> 22) ^ s) & 0x1;
  	j2 = (~(diff >> 21) ^ s) & 0x1;
  	jump_inst[0] = 0xf000 | (s << 10) | COPY_BITS(diff, 11, 0, 10);
  	jump_inst[1] = (j1 << 13) | (j2 << 11) | (diff & 0x7ff);
  
  	/* The others have a common form. */
  	if (type == 5) /* Encoding T4 of 'B' instruction */
  		jump_inst[1] |= 0x9000;
  	else if (type == 6) /* Encoding T1 of 'BL' instruction */
  		jump_inst[1] |= 0xd000;
  	else
  		SLJIT_UNREACHABLE();
  }
  
  SLJIT_API_FUNC_ATTRIBUTE void* sljit_generate_code(struct sljit_compiler *compiler)
  {
  	struct sljit_memory_fragment *buf;
  	sljit_u16 *code;
  	sljit_u16 *code_ptr;
  	sljit_u16 *buf_ptr;
  	sljit_u16 *buf_end;
  	sljit_uw half_count;
  	sljit_uw next_addr;
  	sljit_sw executable_offset;
  
  	struct sljit_label *label;
  	struct sljit_jump *jump;
  	struct sljit_const *const_;
  	struct sljit_put_label *put_label;
  
  	CHECK_ERROR_PTR();
  	CHECK_PTR(check_sljit_generate_code(compiler));
  	reverse_buf(compiler);
  
  	code = (sljit_u16*)SLJIT_MALLOC_EXEC(compiler->size * sizeof(sljit_u16));
  	PTR_FAIL_WITH_EXEC_IF(code);
  	buf = compiler->buf;
  
  	code_ptr = code;
  	half_count = 0;
  	next_addr = 0;
  	executable_offset = SLJIT_EXEC_OFFSET(code);
  
  	label = compiler->labels;
  	jump = compiler->jumps;
  	const_ = compiler->consts;
  	put_label = compiler->put_labels;
  
  	do {
  		buf_ptr = (sljit_u16*)buf->memory;
  		buf_end = buf_ptr + (buf->used_size >> 1);
  		do {
  			*code_ptr = *buf_ptr++;
  			if (next_addr == half_count) {
  				SLJIT_ASSERT(!label || label->size >= half_count);
  				SLJIT_ASSERT(!jump || jump->addr >= half_count);
  				SLJIT_ASSERT(!const_ || const_->addr >= half_count);
  				SLJIT_ASSERT(!put_label || put_label->addr >= half_count);
  
  				/* These structures are ordered by their address. */
  				if (label && label->size == half_count) {
  					label->addr = ((sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset)) | 0x1;
  					label->size = code_ptr - code;
  					label = label->next;
  				}
  				if (jump && jump->addr == half_count) {
  						jump->addr = (sljit_uw)code_ptr - ((jump->flags & IS_COND) ? 10 : 8);
  						code_ptr -= detect_jump_type(jump, code_ptr, code, executable_offset);
  						jump = jump->next;
  				}
  				if (const_ && const_->addr == half_count) {
  					const_->addr = (sljit_uw)code_ptr;
  					const_ = const_->next;
  				}
  				if (put_label && put_label->addr == half_count) {
  					SLJIT_ASSERT(put_label->label);
  					put_label->addr = (sljit_uw)code_ptr;
  					put_label = put_label->next;
  				}
  				next_addr = compute_next_addr(label, jump, const_, put_label);
  			}
  			code_ptr ++;
  			half_count ++;
  		} while (buf_ptr < buf_end);
  
  		buf = buf->next;
  	} while (buf);
  
  	if (label && label->size == half_count) {
  		label->addr = ((sljit_uw)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset)) | 0x1;
  		label->size = code_ptr - code;
  		label = label->next;
  	}
  
  	SLJIT_ASSERT(!label);
  	SLJIT_ASSERT(!jump);
  	SLJIT_ASSERT(!const_);
  	SLJIT_ASSERT(!put_label);
  	SLJIT_ASSERT(code_ptr - code <= (sljit_sw)compiler->size);
  
  	jump = compiler->jumps;
  	while (jump) {
  		set_jump_instruction(jump, executable_offset);
  		jump = jump->next;
  	}
  
  	put_label = compiler->put_labels;
  	while (put_label) {
  		modify_imm32_const((sljit_u16 *)put_label->addr, put_label->label->addr);
  		put_label = put_label->next;
  	}
  
  	compiler->error = SLJIT_ERR_COMPILED;
  	compiler->executable_offset = executable_offset;
  	compiler->executable_size = (code_ptr - code) * sizeof(sljit_u16);
  
  	code = (sljit_u16 *)SLJIT_ADD_EXEC_OFFSET(code, executable_offset);
  	code_ptr = (sljit_u16 *)SLJIT_ADD_EXEC_OFFSET(code_ptr, executable_offset);
  
  	SLJIT_CACHE_FLUSH(code, code_ptr);
  	/* Set thumb mode flag. */
  	return (void*)((sljit_uw)code | 0x1);
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_has_cpu_feature(sljit_s32 feature_type)
  {
  	switch (feature_type) {
  	case SLJIT_HAS_FPU:
  #ifdef SLJIT_IS_FPU_AVAILABLE
  		return SLJIT_IS_FPU_AVAILABLE;
  #else
  		/* Available by default. */
  		return 1;
  #endif
  
  	case SLJIT_HAS_CLZ:
  	case SLJIT_HAS_CMOV:
  	case SLJIT_HAS_PREFETCH:
  		return 1;
  
  	default:
  		return 0;
  	}
  }
  
  /* --------------------------------------------------------------------- */
  /*  Core code generator functions.                                       */
  /* --------------------------------------------------------------------- */
  
  #define INVALID_IMM	0x80000000
  static sljit_uw get_imm(sljit_uw imm)
  {
  	/* Thumb immediate form. */
  	sljit_s32 counter;
  
  	if (imm <= 0xff)
  		return imm;
  
  	if ((imm & 0xffff) == (imm >> 16)) {
  		/* Some special cases. */
  		if (!(imm & 0xff00))
  			return (1 << 12) | (imm & 0xff);
  		if (!(imm & 0xff))
  			return (2 << 12) | ((imm >> 8) & 0xff);
  		if ((imm & 0xff00) == ((imm & 0xff) << 8))
  			return (3 << 12) | (imm & 0xff);
  	}
  
  	/* Assembly optimization: count leading zeroes? */
  	counter = 8;
  	if (!(imm & 0xffff0000)) {
  		counter += 16;
  		imm <<= 16;
  	}
  	if (!(imm & 0xff000000)) {
  		counter += 8;
  		imm <<= 8;
  	}
  	if (!(imm & 0xf0000000)) {
  		counter += 4;
  		imm <<= 4;
  	}
  	if (!(imm & 0xc0000000)) {
  		counter += 2;
  		imm <<= 2;
  	}
  	if (!(imm & 0x80000000)) {
  		counter += 1;
  		imm <<= 1;
  	}
  	/* Since imm >= 128, this must be true. */
  	SLJIT_ASSERT(counter <= 31);
  
  	if (imm & 0x00ffffff)
  		return INVALID_IMM; /* Cannot be encoded. */
  
  	return ((imm >> 24) & 0x7f) | COPY_BITS(counter, 4, 26, 1) | COPY_BITS(counter, 1, 12, 3) | COPY_BITS(counter, 0, 7, 1);
  }
  
  static sljit_s32 load_immediate(struct sljit_compiler *compiler, sljit_s32 dst, sljit_uw imm)
  {
  	sljit_uw tmp;
  
  	/* MOVS cannot be used since it destroy flags. */
  
  	if (imm >= 0x10000) {
  		tmp = get_imm(imm);
  		if (tmp != INVALID_IMM)
  			return push_inst32(compiler, MOV_WI | RD4(dst) | tmp);
  		tmp = get_imm(~imm);
  		if (tmp != INVALID_IMM)
  			return push_inst32(compiler, MVN_WI | RD4(dst) | tmp);
  	}
  
  	/* set low 16 bits, set hi 16 bits to 0. */
  	FAIL_IF(push_inst32(compiler, MOVW | RD4(dst)
  		| COPY_BITS(imm, 12, 16, 4) | COPY_BITS(imm, 11, 26, 1) | COPY_BITS(imm, 8, 12, 3) | (imm & 0xff)));
  
  	/* set hi 16 bit if needed. */
  	if (imm >= 0x10000)
  		return push_inst32(compiler, MOVT | RD4(dst)
  			| COPY_BITS(imm, 12 + 16, 16, 4) | COPY_BITS(imm, 11 + 16, 26, 1) | COPY_BITS(imm, 8 + 16, 12, 3) | ((imm & 0xff0000) >> 16));
  	return SLJIT_SUCCESS;
  }
  
  #define ARG1_IMM	0x0010000
  #define ARG2_IMM	0x0020000
  /* SET_FLAGS must be 0x100000 as it is also the value of S bit (can be used for optimization). */
  #define SET_FLAGS	0x0100000
  #define UNUSED_RETURN	0x0200000
  
  static sljit_s32 emit_op_imm(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 dst, sljit_uw arg1, sljit_uw arg2)
  {
  	/* dst must be register, TMP_REG1
  	   arg1 must be register, imm
  	   arg2 must be register, imm */
  	sljit_s32 reg;
  	sljit_uw imm, nimm;
  
  	if (SLJIT_UNLIKELY((flags & (ARG1_IMM | ARG2_IMM)) == (ARG1_IMM | ARG2_IMM))) {
  		/* Both are immediates, no temporaries are used. */
  		flags &= ~ARG1_IMM;
  		FAIL_IF(load_immediate(compiler, TMP_REG1, arg1));
  		arg1 = TMP_REG1;
  	}
  
  	if (flags & (ARG1_IMM | ARG2_IMM)) {
  		reg = (flags & ARG2_IMM) ? arg1 : arg2;
  		imm = (flags & ARG2_IMM) ? arg2 : arg1;
  
  		switch (flags & 0xffff) {
  		case SLJIT_CLZ:
  		case SLJIT_MUL:
  			/* No form with immediate operand. */
  			break;
  		case SLJIT_MOV:
  			SLJIT_ASSERT(!(flags & SET_FLAGS) && (flags & ARG2_IMM) && arg1 == TMP_REG2);
  			return load_immediate(compiler, dst, imm);
  		case SLJIT_NOT:
  			if (!(flags & SET_FLAGS))
  				return load_immediate(compiler, dst, ~imm);
  			/* Since the flags should be set, we just fallback to the register mode.
  			   Although some clever things could be done here, "NOT IMM" does not worth the efforts. */
  			break;
  		case SLJIT_ADD:
  			nimm = -imm;
  			if (IS_2_LO_REGS(reg, dst)) {
  				if (imm <= 0x7)
  					return push_inst16(compiler, ADDSI3 | IMM3(imm) | RD3(dst) | RN3(reg));
  				if (nimm <= 0x7)
  					return push_inst16(compiler, SUBSI3 | IMM3(nimm) | RD3(dst) | RN3(reg));
  				if (reg == dst) {
  					if (imm <= 0xff)
  						return push_inst16(compiler, ADDSI8 | IMM8(imm) | RDN3(dst));
  					if (nimm <= 0xff)
  						return push_inst16(compiler, SUBSI8 | IMM8(nimm) | RDN3(dst));
  				}
  			}
  			if (!(flags & SET_FLAGS)) {
  				if (imm <= 0xfff)
  					return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(imm));
  				if (nimm <= 0xfff)
  					return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(nimm));
  			}
  			nimm = get_imm(imm);
  			if (nimm != INVALID_IMM)
  				return push_inst32(compiler, ADD_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | nimm);
  			nimm = get_imm(-imm);
  			if (nimm != INVALID_IMM)
  				return push_inst32(compiler, SUB_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | nimm);
  			break;
  		case SLJIT_ADDC:
  			imm = get_imm(imm);
  			if (imm != INVALID_IMM)
  				return push_inst32(compiler, ADCI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
  			break;
  		case SLJIT_SUB:
  			/* SUB operation can be replaced by ADD because of the negative carry flag. */
  			if (flags & ARG1_IMM) {
  				if (imm == 0 && IS_2_LO_REGS(reg, dst))
  					return push_inst16(compiler, RSBSI | RD3(dst) | RN3(reg));
  				imm = get_imm(imm);
  				if (imm != INVALID_IMM)
  					return push_inst32(compiler, RSB_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
  				break;
  			}
  			if (flags & UNUSED_RETURN) {
  				if (imm <= 0xff && reg_map[reg] <= 7)
  					return push_inst16(compiler, CMPI | IMM8(imm) | RDN3(reg));
  				nimm = get_imm(imm);
  				if (nimm != INVALID_IMM)
  					return push_inst32(compiler, CMPI_W | RN4(reg) | nimm);
  				nimm = get_imm(-imm);
  				if (nimm != INVALID_IMM)
  					return push_inst32(compiler, CMNI_W | RN4(reg) | nimm);
  			}
  			nimm = -imm;
  			if (IS_2_LO_REGS(reg, dst)) {
  				if (imm <= 0x7)
  					return push_inst16(compiler, SUBSI3 | IMM3(imm) | RD3(dst) | RN3(reg));
  				if (nimm <= 0x7)
  					return push_inst16(compiler, ADDSI3 | IMM3(nimm) | RD3(dst) | RN3(reg));
  				if (reg == dst) {
  					if (imm <= 0xff)
  						return push_inst16(compiler, SUBSI8 | IMM8(imm) | RDN3(dst));
  					if (nimm <= 0xff)
  						return push_inst16(compiler, ADDSI8 | IMM8(nimm) | RDN3(dst));
  				}
  			}
  			if (!(flags & SET_FLAGS)) {
  				if (imm <= 0xfff)
  					return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(imm));
  				if (nimm <= 0xfff)
  					return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(nimm));
  			}
  			nimm = get_imm(imm);
  			if (nimm != INVALID_IMM)
  				return push_inst32(compiler, SUB_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | nimm);
  			nimm = get_imm(-imm);
  			if (nimm != INVALID_IMM)
  				return push_inst32(compiler, ADD_WI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | nimm);
  			break;
  		case SLJIT_SUBC:
  			if (flags & ARG1_IMM)
  				break;
  			imm = get_imm(imm);
  			if (imm != INVALID_IMM)
  				return push_inst32(compiler, SBCI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
  			break;
  		case SLJIT_AND:
  			nimm = get_imm(imm);
  			if (nimm != INVALID_IMM)
  				return push_inst32(compiler, ANDI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | nimm);
  			imm = get_imm(imm);
  			if (imm != INVALID_IMM)
  				return push_inst32(compiler, BICI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
  			break;
  		case SLJIT_OR:
  			nimm = get_imm(imm);
  			if (nimm != INVALID_IMM)
  				return push_inst32(compiler, ORRI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | nimm);
  			imm = get_imm(imm);
  			if (imm != INVALID_IMM)
  				return push_inst32(compiler, ORNI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
  			break;
  		case SLJIT_XOR:
  			imm = get_imm(imm);
  			if (imm != INVALID_IMM)
  				return push_inst32(compiler, EORI | (flags & SET_FLAGS) | RD4(dst) | RN4(reg) | imm);
  			break;
  		case SLJIT_SHL:
  		case SLJIT_LSHR:
  		case SLJIT_ASHR:
  			if (flags & ARG1_IMM)
  				break;
  			imm &= 0x1f;
  			if (imm == 0) {
  				if (!(flags & SET_FLAGS))
  					return push_inst16(compiler, MOV | SET_REGS44(dst, reg));
  				if (IS_2_LO_REGS(dst, reg))
  					return push_inst16(compiler, MOVS | RD3(dst) | RN3(reg));
  				return push_inst32(compiler, MOV_W | SET_FLAGS | RD4(dst) | RM4(reg));
  			}
  			switch (flags & 0xffff) {
  			case SLJIT_SHL:
  				if (IS_2_LO_REGS(dst, reg))
  					return push_inst16(compiler, LSLSI | RD3(dst) | RN3(reg) | (imm << 6));
  				return push_inst32(compiler, LSL_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
  			case SLJIT_LSHR:
  				if (IS_2_LO_REGS(dst, reg))
  					return push_inst16(compiler, LSRSI | RD3(dst) | RN3(reg) | (imm << 6));
  				return push_inst32(compiler, LSR_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
  			default: /* SLJIT_ASHR */
  				if (IS_2_LO_REGS(dst, reg))
  					return push_inst16(compiler, ASRSI | RD3(dst) | RN3(reg) | (imm << 6));
  				return push_inst32(compiler, ASR_WI | (flags & SET_FLAGS) | RD4(dst) | RM4(reg) | IMM5(imm));
  			}
  		default:
  			SLJIT_UNREACHABLE();
  			break;
  		}
  
  		if (flags & ARG2_IMM) {
  			imm = arg2;
  			arg2 = (arg1 == TMP_REG1) ? TMP_REG2 : TMP_REG1;
  			FAIL_IF(load_immediate(compiler, arg2, imm));
  		}
  		else {
  			imm = arg1;
  			arg1 = (arg2 == TMP_REG1) ? TMP_REG2 : TMP_REG1;
  			FAIL_IF(load_immediate(compiler, arg1, imm));
  		}
  
  		SLJIT_ASSERT(arg1 != arg2);
  	}
  
  	/* Both arguments are registers. */
  	switch (flags & 0xffff) {
  	case SLJIT_MOV:
  	case SLJIT_MOV_U32:
  	case SLJIT_MOV_S32:
  	case SLJIT_MOV_P:
  		SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
  		if (dst == arg2)
  			return SLJIT_SUCCESS;
  		return push_inst16(compiler, MOV | SET_REGS44(dst, arg2));
  	case SLJIT_MOV_U8:
  		SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
  		if (IS_2_LO_REGS(dst, arg2))
  			return push_inst16(compiler, UXTB | RD3(dst) | RN3(arg2));
  		return push_inst32(compiler, UXTB_W | RD4(dst) | RM4(arg2));
  	case SLJIT_MOV_S8:
  		SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
  		if (IS_2_LO_REGS(dst, arg2))
  			return push_inst16(compiler, SXTB | RD3(dst) | RN3(arg2));
  		return push_inst32(compiler, SXTB_W | RD4(dst) | RM4(arg2));
  	case SLJIT_MOV_U16:
  		SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
  		if (IS_2_LO_REGS(dst, arg2))
  			return push_inst16(compiler, UXTH | RD3(dst) | RN3(arg2));
  		return push_inst32(compiler, UXTH_W | RD4(dst) | RM4(arg2));
  	case SLJIT_MOV_S16:
  		SLJIT_ASSERT(!(flags & SET_FLAGS) && arg1 == TMP_REG2);
  		if (IS_2_LO_REGS(dst, arg2))
  			return push_inst16(compiler, SXTH | RD3(dst) | RN3(arg2));
  		return push_inst32(compiler, SXTH_W | RD4(dst) | RM4(arg2));
  	case SLJIT_NOT:
  		SLJIT_ASSERT(arg1 == TMP_REG2);
  		if (IS_2_LO_REGS(dst, arg2))
  			return push_inst16(compiler, MVNS | RD3(dst) | RN3(arg2));
  		return push_inst32(compiler, MVN_W | (flags & SET_FLAGS) | RD4(dst) | RM4(arg2));
  	case SLJIT_CLZ:
  		SLJIT_ASSERT(arg1 == TMP_REG2);
  		FAIL_IF(push_inst32(compiler, CLZ | RN4(arg2) | RD4(dst) | RM4(arg2)));
  		return SLJIT_SUCCESS;
  	case SLJIT_ADD:
  		if (IS_3_LO_REGS(dst, arg1, arg2))
  			return push_inst16(compiler, ADDS | RD3(dst) | RN3(arg1) | RM3(arg2));
  		if (dst == arg1 && !(flags & SET_FLAGS))
  			return push_inst16(compiler, ADD | SET_REGS44(dst, arg2));
  		return push_inst32(compiler, ADD_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
  	case SLJIT_ADDC:
  		if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
  			return push_inst16(compiler, ADCS | RD3(dst) | RN3(arg2));
  		return push_inst32(compiler, ADC_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
  	case SLJIT_SUB:
  		if (flags & UNUSED_RETURN) {
  			if (IS_2_LO_REGS(arg1, arg2))
  				return push_inst16(compiler, CMP | RD3(arg1) | RN3(arg2));
  			return push_inst16(compiler, CMP_X | SET_REGS44(arg1, arg2));
  		}
  		if (IS_3_LO_REGS(dst, arg1, arg2))
  			return push_inst16(compiler, SUBS | RD3(dst) | RN3(arg1) | RM3(arg2));
  		return push_inst32(compiler, SUB_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
  	case SLJIT_SUBC:
  		if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
  			return push_inst16(compiler, SBCS | RD3(dst) | RN3(arg2));
  		return push_inst32(compiler, SBC_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
  	case SLJIT_MUL:
  		if (!(flags & SET_FLAGS))
  			return push_inst32(compiler, MUL | RD4(dst) | RN4(arg1) | RM4(arg2));
  		SLJIT_ASSERT(dst != TMP_REG2);
  		FAIL_IF(push_inst32(compiler, SMULL | RT4(dst) | RD4(TMP_REG2) | RN4(arg1) | RM4(arg2)));
  		/* cmp TMP_REG2, dst asr #31. */
  		return push_inst32(compiler, CMP_W | RN4(TMP_REG2) | 0x70e0 | RM4(dst));
  	case SLJIT_AND:
  		if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
  			return push_inst16(compiler, ANDS | RD3(dst) | RN3(arg2));
  		if ((flags & UNUSED_RETURN) && IS_2_LO_REGS(arg1, arg2))
  			return push_inst16(compiler, TST | RD3(arg1) | RN3(arg2));
  		return push_inst32(compiler, AND_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
  	case SLJIT_OR:
  		if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
  			return push_inst16(compiler, ORRS | RD3(dst) | RN3(arg2));
  		return push_inst32(compiler, ORR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
  	case SLJIT_XOR:
  		if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
  			return push_inst16(compiler, EORS | RD3(dst) | RN3(arg2));
  		return push_inst32(compiler, EOR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
  	case SLJIT_SHL:
  		if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
  			return push_inst16(compiler, LSLS | RD3(dst) | RN3(arg2));
  		return push_inst32(compiler, LSL_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
  	case SLJIT_LSHR:
  		if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
  			return push_inst16(compiler, LSRS | RD3(dst) | RN3(arg2));
  		return push_inst32(compiler, LSR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
  	case SLJIT_ASHR:
  		if (dst == arg1 && IS_2_LO_REGS(dst, arg2))
  			return push_inst16(compiler, ASRS | RD3(dst) | RN3(arg2));
  		return push_inst32(compiler, ASR_W | (flags & SET_FLAGS) | RD4(dst) | RN4(arg1) | RM4(arg2));
  	}
  
  	SLJIT_UNREACHABLE();
  	return SLJIT_SUCCESS;
  }
  
  #define STORE		0x01
  #define SIGNED		0x02
  
  #define WORD_SIZE	0x00
  #define BYTE_SIZE	0x04
  #define HALF_SIZE	0x08
  #define PRELOAD		0x0c
  
  #define IS_WORD_SIZE(flags)		(!(flags & (BYTE_SIZE | HALF_SIZE)))
  #define OFFSET_CHECK(imm, shift)	(!(argw & ~(imm << shift)))
  
  /*
    1st letter:
    w = word
    b = byte
    h = half
  
    2nd letter:
    s = signed
    u = unsigned
  
    3rd letter:
    l = load
    s = store
  */
  
  static const sljit_ins sljit_mem16[12] = {
  /* w u l */ 0x5800 /* ldr */,
  /* w u s */ 0x5000 /* str */,
  /* w s l */ 0x5800 /* ldr */,
  /* w s s */ 0x5000 /* str */,
  
  /* b u l */ 0x5c00 /* ldrb */,
  /* b u s */ 0x5400 /* strb */,
  /* b s l */ 0x5600 /* ldrsb */,
  /* b s s */ 0x5400 /* strb */,
  
  /* h u l */ 0x5a00 /* ldrh */,
  /* h u s */ 0x5200 /* strh */,
  /* h s l */ 0x5e00 /* ldrsh */,
  /* h s s */ 0x5200 /* strh */,
  };
  
  static const sljit_ins sljit_mem16_imm5[12] = {
  /* w u l */ 0x6800 /* ldr imm5 */,
  /* w u s */ 0x6000 /* str imm5 */,
  /* w s l */ 0x6800 /* ldr imm5 */,
  /* w s s */ 0x6000 /* str imm5 */,
  
  /* b u l */ 0x7800 /* ldrb imm5 */,
  /* b u s */ 0x7000 /* strb imm5 */,
  /* b s l */ 0x0000 /* not allowed */,
  /* b s s */ 0x7000 /* strb imm5 */,
  
  /* h u l */ 0x8800 /* ldrh imm5 */,
  /* h u s */ 0x8000 /* strh imm5 */,
  /* h s l */ 0x0000 /* not allowed */,
  /* h s s */ 0x8000 /* strh imm5 */,
  };
  
  #define MEM_IMM8	0xc00
  #define MEM_IMM12	0x800000
  static const sljit_ins sljit_mem32[13] = {
  /* w u l */ 0xf8500000 /* ldr.w */,
  /* w u s */ 0xf8400000 /* str.w */,
  /* w s l */ 0xf8500000 /* ldr.w */,
  /* w s s */ 0xf8400000 /* str.w */,
  
  /* b u l */ 0xf8100000 /* ldrb.w */,
  /* b u s */ 0xf8000000 /* strb.w */,
  /* b s l */ 0xf9100000 /* ldrsb.w */,
  /* b s s */ 0xf8000000 /* strb.w */,
  
  /* h u l */ 0xf8300000 /* ldrh.w */,
  /* h u s */ 0xf8200000 /* strsh.w */,
  /* h s l */ 0xf9300000 /* ldrsh.w */,
  /* h s s */ 0xf8200000 /* strsh.w */,
  
  /* p u l */ 0xf8100000 /* pld */,
  };
  
  /* Helper function. Dst should be reg + value, using at most 1 instruction, flags does not set. */
  static sljit_s32 emit_set_delta(struct sljit_compiler *compiler, sljit_s32 dst, sljit_s32 reg, sljit_sw value)
  {
  	if (value >= 0) {
  		if (value <= 0xfff)
  			return push_inst32(compiler, ADDWI | RD4(dst) | RN4(reg) | IMM12(value));
  		value = get_imm(value);
  		if (value != INVALID_IMM)
  			return push_inst32(compiler, ADD_WI | RD4(dst) | RN4(reg) | value);
  	}
  	else {
  		value = -value;
  		if (value <= 0xfff)
  			return push_inst32(compiler, SUBWI | RD4(dst) | RN4(reg) | IMM12(value));
  		value = get_imm(value);
  		if (value != INVALID_IMM)
  			return push_inst32(compiler, SUB_WI | RD4(dst) | RN4(reg) | value);
  	}
  	return SLJIT_ERR_UNSUPPORTED;
  }
  
  static SLJIT_INLINE sljit_s32 emit_op_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg,
  	sljit_s32 arg, sljit_sw argw, sljit_s32 tmp_reg)
  {
  	sljit_s32 other_r;
  	sljit_uw tmp;
  
  	SLJIT_ASSERT(arg & SLJIT_MEM);
  	SLJIT_ASSERT((arg & REG_MASK) != tmp_reg);
  	arg &= ~SLJIT_MEM;
  
  	if (SLJIT_UNLIKELY(!(arg & REG_MASK))) {
  		tmp = get_imm(argw & ~0xfff);
  		if (tmp != INVALID_IMM) {
  			FAIL_IF(push_inst32(compiler, MOV_WI | RD4(tmp_reg) | tmp));
  			return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(tmp_reg) | (argw & 0xfff));
  		}
  
  		FAIL_IF(load_immediate(compiler, tmp_reg, argw));
  		if (IS_2_LO_REGS(reg, tmp_reg) && sljit_mem16_imm5[flags])
  			return push_inst16(compiler, sljit_mem16_imm5[flags] | RD3(reg) | RN3(tmp_reg));
  		return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(tmp_reg));
  	}
  
  	if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
  		argw &= 0x3;
  		other_r = OFFS_REG(arg);
  		arg &= 0xf;
  
  		if (!argw && IS_3_LO_REGS(reg, arg, other_r))
  			return push_inst16(compiler, sljit_mem16[flags] | RD3(reg) | RN3(arg) | RM3(other_r));
  		return push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(other_r) | (argw << 4));
  	}
  
  	if (argw > 0xfff) {
  		tmp = get_imm(argw & ~0xfff);
  		if (tmp != INVALID_IMM) {
  			push_inst32(compiler, ADD_WI | RD4(tmp_reg) | RN4(arg) | tmp);
  			arg = tmp_reg;
  			argw = argw & 0xfff;
  		}
  	}
  	else if (argw < -0xff) {
  		tmp = get_imm(-argw & ~0xff);
  		if (tmp != INVALID_IMM) {
  			push_inst32(compiler, SUB_WI | RD4(tmp_reg) | RN4(arg) | tmp);
  			arg = tmp_reg;
  			argw = -(-argw & 0xff);
  		}
  	}
  
  	if (IS_2_LO_REGS(reg, arg) && sljit_mem16_imm5[flags]) {
  		tmp = 3;
  		if (IS_WORD_SIZE(flags)) {
  			if (OFFSET_CHECK(0x1f, 2))
  				tmp = 2;
  		}
  		else if (flags & BYTE_SIZE)
  		{
  			if (OFFSET_CHECK(0x1f, 0))
  				tmp = 0;
  		}
  		else {
  			SLJIT_ASSERT(flags & HALF_SIZE);
  			if (OFFSET_CHECK(0x1f, 1))
  				tmp = 1;
  		}
  
  		if (tmp < 3)
  			return push_inst16(compiler, sljit_mem16_imm5[flags] | RD3(reg) | RN3(arg) | (argw << (6 - tmp)));
  	}
  	else if (SLJIT_UNLIKELY(arg == SLJIT_SP) && IS_WORD_SIZE(flags) && OFFSET_CHECK(0xff, 2) && reg_map[reg] <= 7) {
  		/* SP based immediate. */
  		return push_inst16(compiler, STR_SP | ((flags & STORE) ? 0 : 0x800) | RDN3(reg) | (argw >> 2));
  	}
  
  	if (argw >= 0 && argw <= 0xfff)
  		return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM12 | RT4(reg) | RN4(arg) | argw);
  	else if (argw < 0 && argw >= -0xff)
  		return push_inst32(compiler, sljit_mem32[flags] | MEM_IMM8 | RT4(reg) | RN4(arg) | -argw);
  
  	SLJIT_ASSERT(arg != tmp_reg);
  
  	FAIL_IF(load_immediate(compiler, tmp_reg, argw));
  	if (IS_3_LO_REGS(reg, arg, tmp_reg))
  		return push_inst16(compiler, sljit_mem16[flags] | RD3(reg) | RN3(arg) | RM3(tmp_reg));
  	return push_inst32(compiler, sljit_mem32[flags] | RT4(reg) | RN4(arg) | RM4(tmp_reg));
  }
  
  /* --------------------------------------------------------------------- */
  /*  Entry, exit                                                          */
  /* --------------------------------------------------------------------- */
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_enter(struct sljit_compiler *compiler,
  	sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
  	sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
  {
  	sljit_s32 args, size, i, tmp;
  	sljit_ins push = 0;
  #ifdef _WIN32
  	sljit_uw imm;
  #endif
  
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
  	set_emit_enter(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
  
  	tmp = saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - saveds) : SLJIT_FIRST_SAVED_REG;
  	for (i = SLJIT_S0; i >= tmp; i--)
  		push |= 1 << reg_map[i];
  
  	for (i = scratches; i >= SLJIT_FIRST_SAVED_REG; i--)
  		push |= 1 << reg_map[i];
  
  	FAIL_IF((push & 0xff00)
  		? push_inst32(compiler, PUSH_W | (1 << 14) | push)
  		: push_inst16(compiler, PUSH | (1 << 8) | push));
  
  	/* Stack must be aligned to 8 bytes: (LR, R4) */
  	size = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1);
  	local_size = ((size + local_size + 7) & ~7) - size;
  	compiler->local_size = local_size;
  
  #ifdef _WIN32
  	if (local_size >= 256) {
  		if (local_size > 4096)
  			imm = get_imm(4096);
  		else
  			imm = get_imm(local_size & ~0xff);
  
  		SLJIT_ASSERT(imm != INVALID_IMM);
  		FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(SLJIT_SP) | imm));
  	}
  #else
  	if (local_size > 0) {
  		if (local_size <= (127 << 2))
  			FAIL_IF(push_inst16(compiler, SUB_SP | (local_size >> 2)));
  		else
  			FAIL_IF(emit_op_imm(compiler, SLJIT_SUB | ARG2_IMM, SLJIT_SP, SLJIT_SP, local_size));
  	}
  #endif
  
  	args = get_arg_count(arg_types);
  
  	if (args >= 1)
  		FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_S0, SLJIT_R0)));
  	if (args >= 2)
  		FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_S1, SLJIT_R1)));
  	if (args >= 3)
  		FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_S2, SLJIT_R2)));
  
  #ifdef _WIN32
  	if (local_size >= 256) {
  		if (local_size > 4096) {
  			imm = get_imm(4096);
  			SLJIT_ASSERT(imm != INVALID_IMM);
  
  			if (local_size < 4 * 4096) {
  				if (local_size > 2 * 4096) {
  					FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG2) | RN4(TMP_REG1)));
  					FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(TMP_REG1) | imm));
  					local_size -= 4096;
  				}
  
  				if (local_size > 2 * 4096) {
  					FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG2) | RN4(TMP_REG1)));
  					FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(TMP_REG1) | imm));
  					local_size -= 4096;
  				}
  
  				FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG2) | RN4(TMP_REG1)));
  				local_size -= 4096;
  
  				SLJIT_ASSERT(local_size > 0);
  			}
  			else {
  				FAIL_IF(load_immediate(compiler, SLJIT_R3, (local_size >> 12) - 1));
  				FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG2) | RN4(TMP_REG1)));
  				FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(TMP_REG1) | imm));
  				SLJIT_ASSERT(reg_map[SLJIT_R3] < 7);
  				FAIL_IF(push_inst16(compiler, SUBSI8 | RDN3(SLJIT_R3) | 1));
  				FAIL_IF(push_inst16(compiler, BCC | (0x1 << 8) /* not-equal */ | (-7 & 0xff)));
  
  				local_size &= 0xfff;
  
  				if (local_size != 0)
  					FAIL_IF(push_inst32(compiler, LDRI | 0x400 | RT4(TMP_REG2) | RN4(TMP_REG1)));
  			}
  
  			if (local_size >= 256) {
  				imm = get_imm(local_size & ~0xff);
  				SLJIT_ASSERT(imm != INVALID_IMM);
  
  				FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(TMP_REG1) | imm));
  			}
  		}
  
  		local_size &= 0xff;
  		FAIL_IF(push_inst32(compiler, LDRI | 0x400 | (local_size > 0 ? 0x100 : 0) | RT4(TMP_REG2) | RN4(TMP_REG1) | local_size));
  
  		FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_SP, TMP_REG1)));
  	}
  	else if (local_size > 0)
  		FAIL_IF(push_inst32(compiler, LDRI | 0x500 | RT4(TMP_REG1) | RN4(SLJIT_SP) | local_size));
  #endif
  
  	return SLJIT_SUCCESS;
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_set_context(struct sljit_compiler *compiler,
  	sljit_s32 options, sljit_s32 arg_types, sljit_s32 scratches, sljit_s32 saveds,
  	sljit_s32 fscratches, sljit_s32 fsaveds, sljit_s32 local_size)
  {
  	sljit_s32 size;
  
  	CHECK_ERROR();
  	CHECK(check_sljit_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size));
  	set_set_context(compiler, options, arg_types, scratches, saveds, fscratches, fsaveds, local_size);
  
  	size = GET_SAVED_REGISTERS_SIZE(scratches, saveds, 1);
  	compiler->local_size = ((size + local_size + 7) & ~7) - size;
  	return SLJIT_SUCCESS;
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_return(struct sljit_compiler *compiler, sljit_s32 op, sljit_s32 src, sljit_sw srcw)
  {
  	sljit_s32 i, tmp;
  	sljit_ins pop = 0;
  
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_return(compiler, op, src, srcw));
  
  	FAIL_IF(emit_mov_before_return(compiler, op, src, srcw));
  
  	if (compiler->local_size > 0) {
  		if (compiler->local_size <= (127 << 2))
  			FAIL_IF(push_inst16(compiler, ADD_SP | (compiler->local_size >> 2)));
  		else
  			FAIL_IF(emit_op_imm(compiler, SLJIT_ADD | ARG2_IMM, SLJIT_SP, SLJIT_SP, compiler->local_size));
  	}
  
  	tmp = compiler->saveds < SLJIT_NUMBER_OF_SAVED_REGISTERS ? (SLJIT_S0 + 1 - compiler->saveds) : SLJIT_FIRST_SAVED_REG;
  	for (i = SLJIT_S0; i >= tmp; i--)
  		pop |= 1 << reg_map[i];
  
  	for (i = compiler->scratches; i >= SLJIT_FIRST_SAVED_REG; i--)
  		pop |= 1 << reg_map[i];
  
  	return (pop & 0xff00)
  		? push_inst32(compiler, POP_W | (1 << 15) | pop)
  		: push_inst16(compiler, POP | (1 << 8) | pop);
  }
  
  /* --------------------------------------------------------------------- */
  /*  Operators                                                            */
  /* --------------------------------------------------------------------- */
  
  #if !(defined __ARM_FEATURE_IDIV) && !(defined __ARM_ARCH_EXT_IDIV__)
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #ifdef _WIN32
  extern unsigned long long __rt_udiv(unsigned int denominator, unsigned int numerator);
  extern long long __rt_sdiv(int denominator, int numerator);
  #elif defined(__GNUC__)
  extern unsigned int __aeabi_uidivmod(unsigned int numerator, int unsigned denominator);
  extern int __aeabi_idivmod(int numerator, int denominator);
  #else
  #error "Software divmod functions are needed"
  #endif
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* !__ARM_FEATURE_IDIV && !__ARM_ARCH_EXT_IDIV__ */
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op0(struct sljit_compiler *compiler, sljit_s32 op)
  {
  #if !(defined __ARM_FEATURE_IDIV) && !(defined __ARM_ARCH_EXT_IDIV__)
  	sljit_sw saved_reg_list[3];
  	sljit_sw saved_reg_count;
  #endif
  
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_op0(compiler, op));
  
  	op = GET_OPCODE(op);
  	switch (op) {
  	case SLJIT_BREAKPOINT:
  		return push_inst16(compiler, BKPT);
  	case SLJIT_NOP:
  		return push_inst16(compiler, NOP);
  	case SLJIT_LMUL_UW:
  	case SLJIT_LMUL_SW:
  		return push_inst32(compiler, (op == SLJIT_LMUL_UW ? UMULL : SMULL)
  			| (reg_map[SLJIT_R1] << 8)
  			| (reg_map[SLJIT_R0] << 12)
  			| (reg_map[SLJIT_R0] << 16)
  			| reg_map[SLJIT_R1]);
  #if (defined __ARM_FEATURE_IDIV) || (defined __ARM_ARCH_EXT_IDIV__)
  	case SLJIT_DIVMOD_UW:
  	case SLJIT_DIVMOD_SW:
  		FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG1, SLJIT_R0)));
  		FAIL_IF(push_inst32(compiler, (op == SLJIT_DIVMOD_UW ? UDIV : SDIV) | RD4(SLJIT_R0) | RN4(SLJIT_R0) | RM4(SLJIT_R1)));
  		FAIL_IF(push_inst32(compiler, MUL | RD4(SLJIT_R1) | RN4(SLJIT_R0) | RM4(SLJIT_R1)));
  		return push_inst32(compiler, SUB_W | RD4(SLJIT_R1) | RN4(TMP_REG1) | RM4(SLJIT_R1));
  	case SLJIT_DIV_UW:
  	case SLJIT_DIV_SW:
  		return push_inst32(compiler, (op == SLJIT_DIV_UW ? UDIV : SDIV) | RD4(SLJIT_R0) | RN4(SLJIT_R0) | RM4(SLJIT_R1));
  #else /* !__ARM_FEATURE_IDIV && !__ARM_ARCH_EXT_IDIV__ */
  	case SLJIT_DIVMOD_UW:
  	case SLJIT_DIVMOD_SW:
  	case SLJIT_DIV_UW:
  	case SLJIT_DIV_SW:
  		SLJIT_COMPILE_ASSERT((SLJIT_DIVMOD_UW & 0x2) == 0 && SLJIT_DIV_UW - 0x2 == SLJIT_DIVMOD_UW, bad_div_opcode_assignments);
  		SLJIT_ASSERT(reg_map[2] == 1 && reg_map[3] == 2 && reg_map[4] == 3);
  
  		saved_reg_count = 0;
  		if (compiler->scratches >= 4)
  			saved_reg_list[saved_reg_count++] = 3;
  		if (compiler->scratches >= 3)
  			saved_reg_list[saved_reg_count++] = 2;
  		if (op >= SLJIT_DIV_UW)
  			saved_reg_list[saved_reg_count++] = 1;
  
  		if (saved_reg_count > 0) {
  			FAIL_IF(push_inst32(compiler, 0xf84d0d00 | (saved_reg_count >= 3 ? 16 : 8)
  						| (saved_reg_list[0] << 12) /* str rX, [sp, #-8/-16]! */));
  			if (saved_reg_count >= 2) {
  				SLJIT_ASSERT(saved_reg_list[1] < 8);
  				FAIL_IF(push_inst16(compiler, 0x9001 | (saved_reg_list[1] << 8) /* str rX, [sp, #4] */));
  			}
  			if (saved_reg_count >= 3) {
  				SLJIT_ASSERT(saved_reg_list[2] < 8);
  				FAIL_IF(push_inst16(compiler, 0x9002 | (saved_reg_list[2] << 8) /* str rX, [sp, #8] */));
  			}
  		}
  
  #ifdef _WIN32
  		FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG1, SLJIT_R0)));
  		FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_R0, SLJIT_R1)));
  		FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(SLJIT_R1, TMP_REG1)));
  		FAIL_IF(sljit_emit_ijump(compiler, SLJIT_FAST_CALL, SLJIT_IMM,
  			((op | 0x2) == SLJIT_DIV_UW ? SLJIT_FUNC_OFFSET(__rt_udiv) : SLJIT_FUNC_OFFSET(__rt_sdiv))));
  #elif defined(__GNUC__)
  		FAIL_IF(sljit_emit_ijump(compiler, SLJIT_FAST_CALL, SLJIT_IMM,
  			((op | 0x2) == SLJIT_DIV_UW ? SLJIT_FUNC_OFFSET(__aeabi_uidivmod) : SLJIT_FUNC_OFFSET(__aeabi_idivmod))));
  #else
  #error "Software divmod functions are needed"
  #endif
  
  		if (saved_reg_count > 0) {
  			if (saved_reg_count >= 3) {
  				SLJIT_ASSERT(saved_reg_list[2] < 8);
  				FAIL_IF(push_inst16(compiler, 0x9802 | (saved_reg_list[2] << 8) /* ldr rX, [sp, #8] */));
  			}
  			if (saved_reg_count >= 2) {
  				SLJIT_ASSERT(saved_reg_list[1] < 8);
  				FAIL_IF(push_inst16(compiler, 0x9801 | (saved_reg_list[1] << 8) /* ldr rX, [sp, #4] */));
  			}
  			return push_inst32(compiler, 0xf85d0b00 | (saved_reg_count >= 3 ? 16 : 8)
  						| (saved_reg_list[0] << 12) /* ldr rX, [sp], #8/16 */);
  		}
  		return SLJIT_SUCCESS;
  #endif /* __ARM_FEATURE_IDIV || __ARM_ARCH_EXT_IDIV__ */
  	case SLJIT_ENDBR:
  	case SLJIT_SKIP_FRAMES_BEFORE_RETURN:
  		return SLJIT_SUCCESS;
  	}
  
  	return SLJIT_SUCCESS;
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op,
  	sljit_s32 dst, sljit_sw dstw,
  	sljit_s32 src, sljit_sw srcw)
  {
  	sljit_s32 dst_r, flags;
  	sljit_s32 op_flags = GET_ALL_FLAGS(op);
  
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
  	ADJUST_LOCAL_OFFSET(dst, dstw);
  	ADJUST_LOCAL_OFFSET(src, srcw);
  
  	dst_r = SLOW_IS_REG(dst) ? dst : TMP_REG1;
  
  	op = GET_OPCODE(op);
  	if (op >= SLJIT_MOV && op <= SLJIT_MOV_P) {
  		switch (op) {
  		case SLJIT_MOV:
  		case SLJIT_MOV_U32:
  		case SLJIT_MOV_S32:
  		case SLJIT_MOV_P:
  			flags = WORD_SIZE;
  			break;
  		case SLJIT_MOV_U8:
  			flags = BYTE_SIZE;
  			if (src & SLJIT_IMM)
  				srcw = (sljit_u8)srcw;
  			break;
  		case SLJIT_MOV_S8:
  			flags = BYTE_SIZE | SIGNED;
  			if (src & SLJIT_IMM)
  				srcw = (sljit_s8)srcw;
  			break;
  		case SLJIT_MOV_U16:
  			flags = HALF_SIZE;
  			if (src & SLJIT_IMM)
  				srcw = (sljit_u16)srcw;
  			break;
  		case SLJIT_MOV_S16:
  			flags = HALF_SIZE | SIGNED;
  			if (src & SLJIT_IMM)
  				srcw = (sljit_s16)srcw;
  			break;
  		default:
  			SLJIT_UNREACHABLE();
  			flags = 0;
  			break;
  		}
  
  		if (src & SLJIT_IMM)
  			FAIL_IF(emit_op_imm(compiler, SLJIT_MOV | ARG2_IMM, dst_r, TMP_REG2, srcw));
  		else if (src & SLJIT_MEM) {
  			FAIL_IF(emit_op_mem(compiler, flags, dst_r, src, srcw, TMP_REG1));
  		} else {
  			if (dst_r != TMP_REG1)
  				return emit_op_imm(compiler, op, dst_r, TMP_REG2, src);
  			dst_r = src;
  		}
  
  		if (!(dst & SLJIT_MEM))
  			return SLJIT_SUCCESS;
  
  		return emit_op_mem(compiler, flags | STORE, dst_r, dst, dstw, TMP_REG2);
  	}
  
  	if (op == SLJIT_NEG) {
  #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
  			|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
  		compiler->skip_checks = 1;
  #endif
  		return sljit_emit_op2(compiler, SLJIT_SUB | op_flags, dst, dstw, SLJIT_IMM, 0, src, srcw);
  	}
  
  	flags = HAS_FLAGS(op_flags) ? SET_FLAGS : 0;
  
  	if (src & SLJIT_MEM) {
  		FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, src, srcw, TMP_REG1));
  		src = TMP_REG1;
  	}
  
  	emit_op_imm(compiler, flags | op, dst_r, TMP_REG2, src);
  
  	if (SLJIT_UNLIKELY(dst & SLJIT_MEM))
  		return emit_op_mem(compiler, flags | STORE, dst_r, dst, dstw, TMP_REG2);
  	return SLJIT_SUCCESS;
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op2(struct sljit_compiler *compiler, sljit_s32 op,
  	sljit_s32 dst, sljit_sw dstw,
  	sljit_s32 src1, sljit_sw src1w,
  	sljit_s32 src2, sljit_sw src2w)
  {
  	sljit_s32 dst_reg, flags, src2_reg;
  
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_op2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
  	ADJUST_LOCAL_OFFSET(dst, dstw);
  	ADJUST_LOCAL_OFFSET(src1, src1w);
  	ADJUST_LOCAL_OFFSET(src2, src2w);
  
  	if (dst == SLJIT_UNUSED && !HAS_FLAGS(op))
  		return SLJIT_SUCCESS;
  
  	dst_reg = SLOW_IS_REG(dst) ? dst : TMP_REG1;
  	flags = HAS_FLAGS(op) ? SET_FLAGS : 0;
  
  	if (src1 & SLJIT_IMM)
  		flags |= ARG1_IMM;
  	else if (src1 & SLJIT_MEM) {
  		emit_op_mem(compiler, WORD_SIZE, TMP_REG1, src1, src1w, TMP_REG1);
  		src1w = TMP_REG1;
  	}
  	else
  		src1w = src1;
  
  	if (src2 & SLJIT_IMM)
  		flags |= ARG2_IMM;
  	else if (src2 & SLJIT_MEM) {
  		src2_reg = (!(flags & ARG1_IMM) && (src1w == TMP_REG1)) ? TMP_REG2 : TMP_REG1;
  		emit_op_mem(compiler, WORD_SIZE, src2_reg, src2, src2w, src2_reg);
  		src2w = src2_reg;
  	}
  	else
  		src2w = src2;
  
  	if (dst == SLJIT_UNUSED)
  		flags |= UNUSED_RETURN;
  
  	emit_op_imm(compiler, flags | GET_OPCODE(op), dst_reg, src1w, src2w);
  
  	if (!(dst & SLJIT_MEM))
  		return SLJIT_SUCCESS;
  	return emit_op_mem(compiler, WORD_SIZE | STORE, dst_reg, dst, dstw, TMP_REG2);
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_src(struct sljit_compiler *compiler, sljit_s32 op,
  	sljit_s32 src, sljit_sw srcw)
  {
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_op_src(compiler, op, src, srcw));
  	ADJUST_LOCAL_OFFSET(src, srcw);
  
  	switch (op) {
  	case SLJIT_FAST_RETURN:
  		SLJIT_ASSERT(reg_map[TMP_REG2] == 14);
  
  		if (FAST_IS_REG(src))
  			FAIL_IF(push_inst16(compiler, MOV | SET_REGS44(TMP_REG2, src)));
  		else
  			FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG2, src, srcw, TMP_REG2));
  
  		return push_inst16(compiler, BX | RN3(TMP_REG2));
  	case SLJIT_SKIP_FRAMES_BEFORE_FAST_RETURN:
  		return SLJIT_SUCCESS;
  	case SLJIT_PREFETCH_L1:
  	case SLJIT_PREFETCH_L2:
  	case SLJIT_PREFETCH_L3:
  	case SLJIT_PREFETCH_ONCE:
  		return emit_op_mem(compiler, PRELOAD, TMP_PC, src, srcw, TMP_REG1);
  	}
  
  	return SLJIT_SUCCESS;
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_register_index(sljit_s32 reg)
  {
  	CHECK_REG_INDEX(check_sljit_get_register_index(reg));
  	return reg_map[reg];
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_get_float_register_index(sljit_s32 reg)
  {
  	CHECK_REG_INDEX(check_sljit_get_float_register_index(reg));
  	return (freg_map[reg] << 1);
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_custom(struct sljit_compiler *compiler,
  	void *instruction, sljit_s32 size)
  {
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_op_custom(compiler, instruction, size));
  
  	if (size == 2)
  		return push_inst16(compiler, *(sljit_u16*)instruction);
  	return push_inst32(compiler, *(sljit_ins*)instruction);
  }
  
  /* --------------------------------------------------------------------- */
  /*  Floating point operators                                             */
  /* --------------------------------------------------------------------- */
  
  #define FPU_LOAD (1 << 20)
  
  static sljit_s32 emit_fop_mem(struct sljit_compiler *compiler, sljit_s32 flags, sljit_s32 reg, sljit_s32 arg, sljit_sw argw)
  {
  	sljit_uw imm;
  	sljit_sw inst = VSTR_F32 | (flags & (SLJIT_F32_OP | FPU_LOAD));
  
  	SLJIT_ASSERT(arg & SLJIT_MEM);
  
  	/* Fast loads and stores. */
  	if (SLJIT_UNLIKELY(arg & OFFS_REG_MASK)) {
  		FAIL_IF(push_inst32(compiler, ADD_W | RD4(TMP_REG1) | RN4(arg & REG_MASK) | RM4(OFFS_REG(arg)) | ((argw & 0x3) << 6)));
  		arg = SLJIT_MEM | TMP_REG1;
  		argw = 0;
  	}
  
  	if ((arg & REG_MASK) && (argw & 0x3) == 0) {
  		if (!(argw & ~0x3fc))
  			return push_inst32(compiler, inst | 0x800000 | RN4(arg & REG_MASK) | DD4(reg) | (argw >> 2));
  		if (!(-argw & ~0x3fc))
  			return push_inst32(compiler, inst | RN4(arg & REG_MASK) | DD4(reg) | (-argw >> 2));
  	}
  
  	if (arg & REG_MASK) {
  		if (emit_set_delta(compiler, TMP_REG1, arg & REG_MASK, argw) != SLJIT_ERR_UNSUPPORTED) {
  			FAIL_IF(compiler->error);
  			return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG1) | DD4(reg));
  		}
  		imm = get_imm(argw & ~0x3fc);
  		if (imm != INVALID_IMM) {
  			FAIL_IF(push_inst32(compiler, ADD_WI | RD4(TMP_REG1) | RN4(arg & REG_MASK) | imm));
  			return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG1) | DD4(reg) | ((argw & 0x3fc) >> 2));
  		}
  		imm = get_imm(-argw & ~0x3fc);
  		if (imm != INVALID_IMM) {
  			argw = -argw;
  			FAIL_IF(push_inst32(compiler, SUB_WI | RD4(TMP_REG1) | RN4(arg & REG_MASK) | imm));
  			return push_inst32(compiler, inst | RN4(TMP_REG1) | DD4(reg) | ((argw & 0x3fc) >> 2));
  		}
  	}
  
  	FAIL_IF(load_immediate(compiler, TMP_REG1, argw));
  	if (arg & REG_MASK)
  		FAIL_IF(push_inst16(compiler, ADD | SET_REGS44(TMP_REG1, (arg & REG_MASK))));
  	return push_inst32(compiler, inst | 0x800000 | RN4(TMP_REG1) | DD4(reg));
  }
  
  static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_sw_from_f64(struct sljit_compiler *compiler, sljit_s32 op,
  	sljit_s32 dst, sljit_sw dstw,
  	sljit_s32 src, sljit_sw srcw)
  {
  	op ^= SLJIT_F32_OP;
  
  	if (src & SLJIT_MEM) {
  		FAIL_IF(emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG1, src, srcw));
  		src = TMP_FREG1;
  	}
  
  	FAIL_IF(push_inst32(compiler, VCVT_S32_F32 | (op & SLJIT_F32_OP) | DD4(TMP_FREG1) | DM4(src)));
  
  	if (FAST_IS_REG(dst))
  		return push_inst32(compiler, VMOV | (1 << 20) | RT4(dst) | DN4(TMP_FREG1));
  
  	/* Store the integer value from a VFP register. */
  	return emit_fop_mem(compiler, 0, TMP_FREG1, dst, dstw);
  }
  
  static SLJIT_INLINE sljit_s32 sljit_emit_fop1_conv_f64_from_sw(struct sljit_compiler *compiler, sljit_s32 op,
  	sljit_s32 dst, sljit_sw dstw,
  	sljit_s32 src, sljit_sw srcw)
  {
  	sljit_s32 dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
  
  	op ^= SLJIT_F32_OP;
  
  	if (FAST_IS_REG(src))
  		FAIL_IF(push_inst32(compiler, VMOV | RT4(src) | DN4(TMP_FREG1)));
  	else if (src & SLJIT_MEM) {
  		/* Load the integer value into a VFP register. */
  		FAIL_IF(emit_fop_mem(compiler, FPU_LOAD, TMP_FREG1, src, srcw));
  	}
  	else {
  		FAIL_IF(load_immediate(compiler, TMP_REG1, srcw));
  		FAIL_IF(push_inst32(compiler, VMOV | RT4(TMP_REG1) | DN4(TMP_FREG1)));
  	}
  
  	FAIL_IF(push_inst32(compiler, VCVT_F32_S32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DM4(TMP_FREG1)));
  
  	if (dst & SLJIT_MEM)
  		return emit_fop_mem(compiler, (op & SLJIT_F32_OP), TMP_FREG1, dst, dstw);
  	return SLJIT_SUCCESS;
  }
  
  static SLJIT_INLINE sljit_s32 sljit_emit_fop1_cmp(struct sljit_compiler *compiler, sljit_s32 op,
  	sljit_s32 src1, sljit_sw src1w,
  	sljit_s32 src2, sljit_sw src2w)
  {
  	op ^= SLJIT_F32_OP;
  
  	if (src1 & SLJIT_MEM) {
  		emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG1, src1, src1w);
  		src1 = TMP_FREG1;
  	}
  
  	if (src2 & SLJIT_MEM) {
  		emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG2, src2, src2w);
  		src2 = TMP_FREG2;
  	}
  
  	FAIL_IF(push_inst32(compiler, VCMP_F32 | (op & SLJIT_F32_OP) | DD4(src1) | DM4(src2)));
  	return push_inst32(compiler, VMRS);
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop1(struct sljit_compiler *compiler, sljit_s32 op,
  	sljit_s32 dst, sljit_sw dstw,
  	sljit_s32 src, sljit_sw srcw)
  {
  	sljit_s32 dst_r;
  
  	CHECK_ERROR();
  
  	SLJIT_COMPILE_ASSERT((SLJIT_F32_OP == 0x100), float_transfer_bit_error);
  	SELECT_FOP1_OPERATION_WITH_CHECKS(compiler, op, dst, dstw, src, srcw);
  
  	dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
  
  	if (GET_OPCODE(op) != SLJIT_CONV_F64_FROM_F32)
  		op ^= SLJIT_F32_OP;
  
  	if (src & SLJIT_MEM) {
  		emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, dst_r, src, srcw);
  		src = dst_r;
  	}
  
  	switch (GET_OPCODE(op)) {
  	case SLJIT_MOV_F64:
  		if (src != dst_r) {
  			if (dst_r != TMP_FREG1)
  				FAIL_IF(push_inst32(compiler, VMOV_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DM4(src)));
  			else
  				dst_r = src;
  		}
  		break;
  	case SLJIT_NEG_F64:
  		FAIL_IF(push_inst32(compiler, VNEG_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DM4(src)));
  		break;
  	case SLJIT_ABS_F64:
  		FAIL_IF(push_inst32(compiler, VABS_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DM4(src)));
  		break;
  	case SLJIT_CONV_F64_FROM_F32:
  		FAIL_IF(push_inst32(compiler, VCVT_F64_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DM4(src)));
  		op ^= SLJIT_F32_OP;
  		break;
  	}
  
  	if (dst & SLJIT_MEM)
  		return emit_fop_mem(compiler, (op & SLJIT_F32_OP), dst_r, dst, dstw);
  	return SLJIT_SUCCESS;
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fop2(struct sljit_compiler *compiler, sljit_s32 op,
  	sljit_s32 dst, sljit_sw dstw,
  	sljit_s32 src1, sljit_sw src1w,
  	sljit_s32 src2, sljit_sw src2w)
  {
  	sljit_s32 dst_r;
  
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_fop2(compiler, op, dst, dstw, src1, src1w, src2, src2w));
  	ADJUST_LOCAL_OFFSET(dst, dstw);
  	ADJUST_LOCAL_OFFSET(src1, src1w);
  	ADJUST_LOCAL_OFFSET(src2, src2w);
  
  	op ^= SLJIT_F32_OP;
  
  	dst_r = FAST_IS_REG(dst) ? dst : TMP_FREG1;
  	if (src1 & SLJIT_MEM) {
  		emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG1, src1, src1w);
  		src1 = TMP_FREG1;
  	}
  	if (src2 & SLJIT_MEM) {
  		emit_fop_mem(compiler, (op & SLJIT_F32_OP) | FPU_LOAD, TMP_FREG2, src2, src2w);
  		src2 = TMP_FREG2;
  	}
  
  	switch (GET_OPCODE(op)) {
  	case SLJIT_ADD_F64:
  		FAIL_IF(push_inst32(compiler, VADD_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DN4(src1) | DM4(src2)));
  		break;
  	case SLJIT_SUB_F64:
  		FAIL_IF(push_inst32(compiler, VSUB_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DN4(src1) | DM4(src2)));
  		break;
  	case SLJIT_MUL_F64:
  		FAIL_IF(push_inst32(compiler, VMUL_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DN4(src1) | DM4(src2)));
  		break;
  	case SLJIT_DIV_F64:
  		FAIL_IF(push_inst32(compiler, VDIV_F32 | (op & SLJIT_F32_OP) | DD4(dst_r) | DN4(src1) | DM4(src2)));
  		break;
  	}
  
  	if (!(dst & SLJIT_MEM))
  		return SLJIT_SUCCESS;
  	return emit_fop_mem(compiler, (op & SLJIT_F32_OP), TMP_FREG1, dst, dstw);
  }
  
  #undef FPU_LOAD
  
  /* --------------------------------------------------------------------- */
  /*  Other instructions                                                   */
  /* --------------------------------------------------------------------- */
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_fast_enter(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
  {
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_fast_enter(compiler, dst, dstw));
  	ADJUST_LOCAL_OFFSET(dst, dstw);
  
  	SLJIT_ASSERT(reg_map[TMP_REG2] == 14);
  
  	if (FAST_IS_REG(dst))
  		return push_inst16(compiler, MOV | SET_REGS44(dst, TMP_REG2));
  
  	/* Memory. */
  	return emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG2, dst, dstw, TMP_REG1);
  }
  
  /* --------------------------------------------------------------------- */
  /*  Conditional instructions                                             */
  /* --------------------------------------------------------------------- */
  
  static sljit_uw get_cc(sljit_s32 type)
  {
  	switch (type) {
  	case SLJIT_EQUAL:
  	case SLJIT_MUL_NOT_OVERFLOW:
  	case SLJIT_EQUAL_F64:
  		return 0x0;
  
  	case SLJIT_NOT_EQUAL:
  	case SLJIT_MUL_OVERFLOW:
  	case SLJIT_NOT_EQUAL_F64:
  		return 0x1;
  
  	case SLJIT_LESS:
  	case SLJIT_LESS_F64:
  		return 0x3;
  
  	case SLJIT_GREATER_EQUAL:
  	case SLJIT_GREATER_EQUAL_F64:
  		return 0x2;
  
  	case SLJIT_GREATER:
  	case SLJIT_GREATER_F64:
  		return 0x8;
  
  	case SLJIT_LESS_EQUAL:
  	case SLJIT_LESS_EQUAL_F64:
  		return 0x9;
  
  	case SLJIT_SIG_LESS:
  		return 0xb;
  
  	case SLJIT_SIG_GREATER_EQUAL:
  		return 0xa;
  
  	case SLJIT_SIG_GREATER:
  		return 0xc;
  
  	case SLJIT_SIG_LESS_EQUAL:
  		return 0xd;
  
  	case SLJIT_OVERFLOW:
  	case SLJIT_UNORDERED_F64:
  		return 0x6;
  
  	case SLJIT_NOT_OVERFLOW:
  	case SLJIT_ORDERED_F64:
  		return 0x7;
  
  	default: /* SLJIT_JUMP */
  		SLJIT_UNREACHABLE();
  		return 0xe;
  	}
  }
  
  SLJIT_API_FUNC_ATTRIBUTE struct sljit_label* sljit_emit_label(struct sljit_compiler *compiler)
  {
  	struct sljit_label *label;
  
  	CHECK_ERROR_PTR();
  	CHECK_PTR(check_sljit_emit_label(compiler));
  
  	if (compiler->last_label && compiler->last_label->size == compiler->size)
  		return compiler->last_label;
  
  	label = (struct sljit_label*)ensure_abuf(compiler, sizeof(struct sljit_label));
  	PTR_FAIL_IF(!label);
  	set_label(label, compiler);
  	return label;
  }
  
  SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_jump(struct sljit_compiler *compiler, sljit_s32 type)
  {
  	struct sljit_jump *jump;
  	sljit_ins cc;
  
  	CHECK_ERROR_PTR();
  	CHECK_PTR(check_sljit_emit_jump(compiler, type));
  
  	jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
  	PTR_FAIL_IF(!jump);
  	set_jump(jump, compiler, type & SLJIT_REWRITABLE_JUMP);
  	type &= 0xff;
  
  	PTR_FAIL_IF(emit_imm32_const(compiler, TMP_REG1, 0));
  	if (type < SLJIT_JUMP) {
  		jump->flags |= IS_COND;
  		cc = get_cc(type);
  		jump->flags |= cc << 8;
  		PTR_FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
  	}
  
  	jump->addr = compiler->size;
  	if (type <= SLJIT_JUMP)
  		PTR_FAIL_IF(push_inst16(compiler, BX | RN3(TMP_REG1)));
  	else {
  		jump->flags |= IS_BL;
  		PTR_FAIL_IF(push_inst16(compiler, BLX | RN3(TMP_REG1)));
  	}
  
  	return jump;
  }
  
  #ifdef __SOFTFP__
  
  static sljit_s32 softfloat_call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types, sljit_s32 *src)
  {
  	sljit_s32 stack_offset = 0;
  	sljit_s32 arg_count = 0;
  	sljit_s32 word_arg_offset = 0;
  	sljit_s32 float_arg_count = 0;
  	sljit_s32 types = 0;
  	sljit_s32 src_offset = 4 * sizeof(sljit_sw);
  	sljit_u8 offsets[4];
  
  	if (src && FAST_IS_REG(*src))
  		src_offset = reg_map[*src] * sizeof(sljit_sw);
  
  	arg_types >>= SLJIT_DEF_SHIFT;
  
  	while (arg_types) {
  		types = (types << SLJIT_DEF_SHIFT) | (arg_types & SLJIT_DEF_MASK);
  
  		switch (arg_types & SLJIT_DEF_MASK) {
  		case SLJIT_ARG_TYPE_F32:
  			offsets[arg_count] = (sljit_u8)stack_offset;
  			stack_offset += sizeof(sljit_f32);
  			arg_count++;
  			float_arg_count++;
  			break;
  		case SLJIT_ARG_TYPE_F64:
  			if (stack_offset & 0x7)
  				stack_offset += sizeof(sljit_sw);
  			offsets[arg_count] = (sljit_u8)stack_offset;
  			stack_offset += sizeof(sljit_f64);
  			arg_count++;
  			float_arg_count++;
  			break;
  		default:
  			offsets[arg_count] = (sljit_u8)stack_offset;
  			stack_offset += sizeof(sljit_sw);
  			arg_count++;
  			word_arg_offset += sizeof(sljit_sw);
  			break;
  		}
  
  		arg_types >>= SLJIT_DEF_SHIFT;
  	}
  
  	if (stack_offset > 16)
  		FAIL_IF(push_inst16(compiler, SUB_SP | (((stack_offset - 16) + 0x7) & ~0x7) >> 2));
  
  	SLJIT_ASSERT(reg_map[TMP_REG1] == 12);
  
  	/* Process arguments in reversed direction. */
  	while (types) {
  		switch (types & SLJIT_DEF_MASK) {
  		case SLJIT_ARG_TYPE_F32:
  			arg_count--;
  			float_arg_count--;
  			stack_offset = offsets[arg_count];
  
  			if (stack_offset < 16) {
  				if (src_offset == stack_offset) {
  					FAIL_IF(push_inst16(compiler, MOV | (src_offset << 1) | 4 | (1 << 7)));
  					*src = TMP_REG1;
  				}
  				FAIL_IF(push_inst32(compiler, VMOV | 0x100000 | (float_arg_count << 16) | (stack_offset << 10)));
  			} else
  				FAIL_IF(push_inst32(compiler, VSTR_F32 | 0x800000 | RN4(SLJIT_SP) | (float_arg_count << 12) | ((stack_offset - 16) >> 2)));
  			break;
  		case SLJIT_ARG_TYPE_F64:
  			arg_count--;
  			float_arg_count--;
  			stack_offset = offsets[arg_count];
  
  			SLJIT_ASSERT((stack_offset & 0x7) == 0);
  
  			if (stack_offset < 16) {
  				if (src_offset == stack_offset || src_offset == stack_offset + sizeof(sljit_sw)) {
  					FAIL_IF(push_inst16(compiler, MOV | (src_offset << 1) | 4 | (1 << 7)));
  					*src = TMP_REG1;
  				}
  				FAIL_IF(push_inst32(compiler, VMOV2 | 0x100000 | (stack_offset << 10) | ((stack_offset + sizeof(sljit_sw)) << 14) | float_arg_count));
  			} else
  				FAIL_IF(push_inst32(compiler, VSTR_F32 | 0x800100 | RN4(SLJIT_SP) | (float_arg_count << 12) | ((stack_offset - 16) >> 2)));
  			break;
  		default:
  			arg_count--;
  			word_arg_offset -= sizeof(sljit_sw);
  			stack_offset = offsets[arg_count];
  
  			SLJIT_ASSERT(stack_offset >= word_arg_offset);
  
  			if (stack_offset != word_arg_offset) {
  				if (stack_offset < 16) {
  					if (src_offset == stack_offset) {
  						FAIL_IF(push_inst16(compiler, MOV | (src_offset << 1) | 4 | (1 << 7)));
  						*src = TMP_REG1;
  					}
  					else if (src_offset == word_arg_offset) {
  						*src = 1 + (stack_offset >> 2);
  						src_offset = stack_offset;
  					}
  					FAIL_IF(push_inst16(compiler, MOV | (stack_offset >> 2) | (word_arg_offset << 1)));
  				} else
  					FAIL_IF(push_inst16(compiler, STR_SP | (word_arg_offset << 6) | ((stack_offset - 16) >> 2)));
  			}
  			break;
  		}
  
  		types >>= SLJIT_DEF_SHIFT;
  	}
  
  	return SLJIT_SUCCESS;
  }
  
  static sljit_s32 softfloat_post_call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types)
  {
  	sljit_s32 stack_size = 0;
  
  	if ((arg_types & SLJIT_DEF_MASK) == SLJIT_ARG_TYPE_F32)
  		FAIL_IF(push_inst32(compiler, VMOV | (0 << 16) | (0 << 12)));
  	if ((arg_types & SLJIT_DEF_MASK) == SLJIT_ARG_TYPE_F64)
  		FAIL_IF(push_inst32(compiler, VMOV2 | (1 << 16) | (0 << 12) | 0));
  
  	arg_types >>= SLJIT_DEF_SHIFT;
  
  	while (arg_types) {
  		switch (arg_types & SLJIT_DEF_MASK) {
  		case SLJIT_ARG_TYPE_F32:
  			stack_size += sizeof(sljit_f32);
  			break;
  		case SLJIT_ARG_TYPE_F64:
  			if (stack_size & 0x7)
  				stack_size += sizeof(sljit_sw);
  			stack_size += sizeof(sljit_f64);
  			break;
  		default:
  			stack_size += sizeof(sljit_sw);
  			break;
  		}
  
  		arg_types >>= SLJIT_DEF_SHIFT;
  	}
  
  	if (stack_size <= 16)
  		return SLJIT_SUCCESS;
  
  	return push_inst16(compiler, ADD_SP | ((((stack_size - 16) + 0x7) & ~0x7) >> 2));
  }
  
  #else
  
  static sljit_s32 hardfloat_call_with_args(struct sljit_compiler *compiler, sljit_s32 arg_types)
  {
  	sljit_u32 remap = 0;
  	sljit_u32 offset = 0;
  	sljit_u32 new_offset, mask;
  
  	/* Remove return value. */
  	arg_types >>= SLJIT_DEF_SHIFT;
  
  	while (arg_types) {
  		if ((arg_types & SLJIT_DEF_MASK) == SLJIT_ARG_TYPE_F32) {
  			new_offset = 0;
  			mask = 1;
  
  			while (remap & mask) {
  				new_offset++;
  				mask <<= 1;
  			}
  			remap |= mask;
  
  			if (offset != new_offset)
  				FAIL_IF(push_inst32(compiler, VMOV_F32 | DD4((new_offset >> 1) + 1)
  					| ((new_offset & 0x1) ? 0x400000 : 0) | DM4((offset >> 1) + 1)));
  
  			offset += 2;
  		}
  		else if ((arg_types & SLJIT_DEF_MASK) == SLJIT_ARG_TYPE_F64) {
  			new_offset = 0;
  			mask = 3;
  
  			while (remap & mask) {
  				new_offset += 2;
  				mask <<= 2;
  			}
  			remap |= mask;
  
  			if (offset != new_offset)
  				FAIL_IF(push_inst32(compiler, VMOV_F32 | SLJIT_F32_OP | DD4((new_offset >> 1) + 1) | DM4((offset >> 1) + 1)));
  
  			offset += 2;
  		}
  		arg_types >>= SLJIT_DEF_SHIFT;
  	}
  
  	return SLJIT_SUCCESS;
  }
  
  #endif
  
  SLJIT_API_FUNC_ATTRIBUTE struct sljit_jump* sljit_emit_call(struct sljit_compiler *compiler, sljit_s32 type,
  	sljit_s32 arg_types)
  {
  #ifdef __SOFTFP__
  	struct sljit_jump *jump;
  #endif
  
  	CHECK_ERROR_PTR();
  	CHECK_PTR(check_sljit_emit_call(compiler, type, arg_types));
  
  #ifdef __SOFTFP__
  	PTR_FAIL_IF(softfloat_call_with_args(compiler, arg_types, NULL));
  
  #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
  		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
  	compiler->skip_checks = 1;
  #endif
  
  	jump = sljit_emit_jump(compiler, type);
  	PTR_FAIL_IF(jump == NULL);
  
  	PTR_FAIL_IF(softfloat_post_call_with_args(compiler, arg_types));
  	return jump;
  #else
  	PTR_FAIL_IF(hardfloat_call_with_args(compiler, arg_types));
  
  #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
  		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
  	compiler->skip_checks = 1;
  #endif
  
  	return sljit_emit_jump(compiler, type);
  #endif
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_ijump(struct sljit_compiler *compiler, sljit_s32 type, sljit_s32 src, sljit_sw srcw)
  {
  	struct sljit_jump *jump;
  
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_ijump(compiler, type, src, srcw));
  	ADJUST_LOCAL_OFFSET(src, srcw);
  
  	SLJIT_ASSERT(reg_map[TMP_REG1] != 14);
  
  	if (!(src & SLJIT_IMM)) {
  		if (FAST_IS_REG(src)) {
  			SLJIT_ASSERT(reg_map[src] != 14);
  			return push_inst16(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RN3(src));
  		}
  
  		FAIL_IF(emit_op_mem(compiler, WORD_SIZE, type <= SLJIT_JUMP ? TMP_PC : TMP_REG1, src, srcw, TMP_REG1));
  		if (type >= SLJIT_FAST_CALL)
  			return push_inst16(compiler, BLX | RN3(TMP_REG1));
  	}
  
  	/* These jumps are converted to jump/call instructions when possible. */
  	jump = (struct sljit_jump*)ensure_abuf(compiler, sizeof(struct sljit_jump));
  	FAIL_IF(!jump);
  	set_jump(jump, compiler, JUMP_ADDR | ((type >= SLJIT_FAST_CALL) ? IS_BL : 0));
  	jump->u.target = srcw;
  
  	FAIL_IF(emit_imm32_const(compiler, TMP_REG1, 0));
  	jump->addr = compiler->size;
  	return push_inst16(compiler, (type <= SLJIT_JUMP ? BX : BLX) | RN3(TMP_REG1));
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_icall(struct sljit_compiler *compiler, sljit_s32 type,
  	sljit_s32 arg_types,
  	sljit_s32 src, sljit_sw srcw)
  {
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_icall(compiler, type, arg_types, src, srcw));
  
  #ifdef __SOFTFP__
  	if (src & SLJIT_MEM) {
  		FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, src, srcw, TMP_REG1));
  		src = TMP_REG1;
  	}
  
  	FAIL_IF(softfloat_call_with_args(compiler, arg_types, &src));
  
  #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
  		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
  	compiler->skip_checks = 1;
  #endif
  
  	FAIL_IF(sljit_emit_ijump(compiler, type, src, srcw));
  
  	return softfloat_post_call_with_args(compiler, arg_types);
  #else /* !__SOFTFP__ */
  	FAIL_IF(hardfloat_call_with_args(compiler, arg_types));
  
  #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
  		|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
  	compiler->skip_checks = 1;
  #endif
  
  	return sljit_emit_ijump(compiler, type, src, srcw);
  #endif /* __SOFTFP__ */
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op_flags(struct sljit_compiler *compiler, sljit_s32 op,
  	sljit_s32 dst, sljit_sw dstw,
  	sljit_s32 type)
  {
  	sljit_s32 dst_r, flags = GET_ALL_FLAGS(op);
  	sljit_ins cc;
  
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_op_flags(compiler, op, dst, dstw, type));
  	ADJUST_LOCAL_OFFSET(dst, dstw);
  
  	op = GET_OPCODE(op);
  	cc = get_cc(type & 0xff);
  	dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
  
  	if (op < SLJIT_ADD) {
  		FAIL_IF(push_inst16(compiler, IT | (cc << 4) | (((cc & 0x1) ^ 0x1) << 3) | 0x4));
  		if (reg_map[dst_r] > 7) {
  			FAIL_IF(push_inst32(compiler, MOV_WI | RD4(dst_r) | 1));
  			FAIL_IF(push_inst32(compiler, MOV_WI | RD4(dst_r) | 0));
  		} else {
  			/* The movsi (immediate) instruction does not set flags in IT block. */
  			FAIL_IF(push_inst16(compiler, MOVSI | RDN3(dst_r) | 1));
  			FAIL_IF(push_inst16(compiler, MOVSI | RDN3(dst_r) | 0));
  		}
  		if (!(dst & SLJIT_MEM))
  			return SLJIT_SUCCESS;
  		return emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG1, dst, dstw, TMP_REG2);
  	}
  
  	if (dst & SLJIT_MEM)
  		FAIL_IF(emit_op_mem(compiler, WORD_SIZE, TMP_REG1, dst, dstw, TMP_REG2));
  
  	if (op == SLJIT_AND) {
  		FAIL_IF(push_inst16(compiler, IT | (cc << 4) | (((cc & 0x1) ^ 0x1) << 3) | 0x4));
  		FAIL_IF(push_inst32(compiler, ANDI | RN4(dst_r) | RD4(dst_r) | 1));
  		FAIL_IF(push_inst32(compiler, ANDI | RN4(dst_r) | RD4(dst_r) | 0));
  	}
  	else {
  		FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
  		FAIL_IF(push_inst32(compiler, ((op == SLJIT_OR) ? ORRI : EORI) | RN4(dst_r) | RD4(dst_r) | 1));
  	}
  
  	if (dst & SLJIT_MEM)
  		FAIL_IF(emit_op_mem(compiler, WORD_SIZE | STORE, TMP_REG1, dst, dstw, TMP_REG2));
  
  	if (!(flags & SLJIT_SET_Z))
  		return SLJIT_SUCCESS;
  
  	/* The condition must always be set, even if the ORR/EORI is not executed above. */
  	return push_inst32(compiler, MOV_W | SET_FLAGS | RD4(TMP_REG1) | RM4(dst_r));
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_cmov(struct sljit_compiler *compiler, sljit_s32 type,
  	sljit_s32 dst_reg,
  	sljit_s32 src, sljit_sw srcw)
  {
  	sljit_uw cc, tmp;
  
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_cmov(compiler, type, dst_reg, src, srcw));
  
  	dst_reg &= ~SLJIT_I32_OP;
  
  	cc = get_cc(type & 0xff);
  
  	if (!(src & SLJIT_IMM)) {
  		FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
  		return push_inst16(compiler, MOV | SET_REGS44(dst_reg, src));
  	}
  
  	tmp = (sljit_uw) srcw;
  
  	if (tmp < 0x10000) {
  		/* set low 16 bits, set hi 16 bits to 0. */
  		FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
  		return push_inst32(compiler, MOVW | RD4(dst_reg)
  			| COPY_BITS(tmp, 12, 16, 4) | COPY_BITS(tmp, 11, 26, 1) | COPY_BITS(tmp, 8, 12, 3) | (tmp & 0xff));
  	}
  
  	tmp = get_imm(srcw);
  	if (tmp != INVALID_IMM) {
  		FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
  		return push_inst32(compiler, MOV_WI | RD4(dst_reg) | tmp);
  	}
  
  	tmp = get_imm(~srcw);
  	if (tmp != INVALID_IMM) {
  		FAIL_IF(push_inst16(compiler, IT | (cc << 4) | 0x8));
  		return push_inst32(compiler, MVN_WI | RD4(dst_reg) | tmp);
  	}
  
  	FAIL_IF(push_inst16(compiler, IT | (cc << 4) | ((cc & 0x1) << 3) | 0x4));
  
  	tmp = (sljit_uw) srcw;
  	FAIL_IF(push_inst32(compiler, MOVW | RD4(dst_reg)
  		| COPY_BITS(tmp, 12, 16, 4) | COPY_BITS(tmp, 11, 26, 1) | COPY_BITS(tmp, 8, 12, 3) | (tmp & 0xff)));
  	return push_inst32(compiler, MOVT | RD4(dst_reg)
  		| COPY_BITS(tmp, 12 + 16, 16, 4) | COPY_BITS(tmp, 11 + 16, 26, 1) | COPY_BITS(tmp, 8 + 16, 12, 3) | ((tmp & 0xff0000) >> 16));
  }
  
  SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_mem(struct sljit_compiler *compiler, sljit_s32 type,
  	sljit_s32 reg,
  	sljit_s32 mem, sljit_sw memw)
  {
  	sljit_s32 flags;
  	sljit_ins inst;
  
  	CHECK_ERROR();
  	CHECK(check_sljit_emit_mem(compiler, type, reg, mem, memw));
  
  	if ((mem & OFFS_REG_MASK) || (memw > 255 || memw < -255))
  		return SLJIT_ERR_UNSUPPORTED;
  
  	if (type & SLJIT_MEM_SUPP)
  		return SLJIT_SUCCESS;
  
  	switch (type & 0xff) {
  	case SLJIT_MOV:
  	case SLJIT_MOV_U32:
  	case SLJIT_MOV_S32:
  	case SLJIT_MOV_P:
  		flags = WORD_SIZE;
  		break;
  	case SLJIT_MOV_U8:
  		flags = BYTE_SIZE;
  		break;
  	case SLJIT_MOV_S8:
  		flags = BYTE_SIZE | SIGNED;
  		break;
  	case SLJIT_MOV_U16:
  		flags = HALF_SIZE;
  		break;
  	case SLJIT_MOV_S16:
  		flags = HALF_SIZE | SIGNED;
  		break;
  	default:
  		SLJIT_UNREACHABLE();
  		flags = WORD_SIZE;
  		break;
  	}
  
  	if (type & SLJIT_MEM_STORE)
  		flags |= STORE;
  
  	inst = sljit_mem32[flags] | 0x900;
  
  	if (type & SLJIT_MEM_PRE)
  		inst |= 0x400;
  
  	if (memw >= 0)
  		inst |= 0x200;
  	else
  		memw = -memw;
  
  	return push_inst32(compiler, inst | RT4(reg) | RN4(mem & REG_MASK) | memw);
  }
  
  SLJIT_API_FUNC_ATTRIBUTE struct sljit_const* sljit_emit_const(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw, sljit_sw init_value)
  {
  	struct sljit_const *const_;
  	sljit_s32 dst_r;
  
  	CHECK_ERROR_PTR();
  	CHECK_PTR(check_sljit_emit_const(compiler, dst, dstw, init_value));
  	ADJUST_LOCAL_OFFSET(dst, dstw);
  
  	const_ = (struct sljit_const*)ensure_abuf(compiler, sizeof(struct sljit_const));
  	PTR_FAIL_IF(!const_);
  	set_const(const_, compiler);
  
  	dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
  	PTR_FAIL_IF(emit_imm32_const(compiler, dst_r, init_value));
  
  	if (dst & SLJIT_MEM)
  		PTR_FAIL_IF(emit_op_mem(compiler, WORD_SIZE | STORE, dst_r, dst, dstw, TMP_REG2));
  	return const_;
  }
  
  SLJIT_API_FUNC_ATTRIBUTE struct sljit_put_label* sljit_emit_put_label(struct sljit_compiler *compiler, sljit_s32 dst, sljit_sw dstw)
  {
  	struct sljit_put_label *put_label;
  	sljit_s32 dst_r;
  
  	CHECK_ERROR_PTR();
  	CHECK_PTR(check_sljit_emit_put_label(compiler, dst, dstw));
  	ADJUST_LOCAL_OFFSET(dst, dstw);
  
  	put_label = (struct sljit_put_label*)ensure_abuf(compiler, sizeof(struct sljit_put_label));
  	PTR_FAIL_IF(!put_label);
  	set_put_label(put_label, compiler, 0);
  
  	dst_r = FAST_IS_REG(dst) ? dst : TMP_REG1;
  	PTR_FAIL_IF(emit_imm32_const(compiler, dst_r, 0));
  
  	if (dst & SLJIT_MEM)
  		PTR_FAIL_IF(emit_op_mem(compiler, WORD_SIZE | STORE, dst_r, dst, dstw, TMP_REG2));
  	return put_label;
  }
  
  SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_target, sljit_sw executable_offset)
  {
  	sljit_u16 *inst = (sljit_u16*)addr;
  	modify_imm32_const(inst, new_target);
  	inst = (sljit_u16 *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
  	SLJIT_CACHE_FLUSH(inst, inst + 4);
  }
  
  SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_sw new_constant, sljit_sw executable_offset)
  {
  	sljit_u16 *inst = (sljit_u16*)addr;
  	modify_imm32_const(inst, new_constant);
  	inst = (sljit_u16 *)SLJIT_ADD_EXEC_OFFSET(inst, executable_offset);
  	SLJIT_CACHE_FLUSH(inst, inst + 4);
  }
  