| /* |
| * Stack-less Just-In-Time compiler |
| * |
| * Copyright 2009-2010 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. |
| */ |
| |
| /* mips 32-bit arch dependent functions. */ |
| |
| static int load_immediate(struct sljit_compiler *compiler, int dst_ar, sljit_w imm) |
| { |
| if (!(imm & ~0xffff)) |
| return push_inst(compiler, ORI | SA(0) | TA(dst_ar) | IMM(imm), dst_ar); |
| |
| if (imm < 0 && imm >= SIMM_MIN) |
| return push_inst(compiler, ADDIU | SA(0) | TA(dst_ar) | IMM(imm), dst_ar); |
| |
| FAIL_IF(push_inst(compiler, LUI | TA(dst_ar) | IMM(imm >> 16), dst_ar)); |
| return (imm & 0xffff) ? push_inst(compiler, ORI | SA(dst_ar) | TA(dst_ar) | IMM(imm), dst_ar) : SLJIT_SUCCESS; |
| } |
| |
| #define EMIT_LOGICAL(op_imm, op_norm) \ |
| if (flags & SRC2_IMM) { \ |
| if (op & SLJIT_SET_E) \ |
| FAIL_IF(push_inst(compiler, op_imm | S(src1) | TA(EQUAL_FLAG) | IMM(src2), EQUAL_FLAG)); \ |
| if (CHECK_FLAGS(SLJIT_SET_E)) \ |
| FAIL_IF(push_inst(compiler, op_imm | S(src1) | T(dst) | IMM(src2), DR(dst))); \ |
| } \ |
| else { \ |
| if (op & SLJIT_SET_E) \ |
| FAIL_IF(push_inst(compiler, op_norm | S(src1) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG)); \ |
| if (CHECK_FLAGS(SLJIT_SET_E)) \ |
| FAIL_IF(push_inst(compiler, op_norm | S(src1) | T(src2) | D(dst), DR(dst))); \ |
| } |
| |
| #define EMIT_SHIFT(op_imm, op_norm) \ |
| if (flags & SRC2_IMM) { \ |
| if (op & SLJIT_SET_E) \ |
| FAIL_IF(push_inst(compiler, op_imm | T(src1) | DA(EQUAL_FLAG) | SH_IMM(src2), EQUAL_FLAG)); \ |
| if (CHECK_FLAGS(SLJIT_SET_E)) \ |
| FAIL_IF(push_inst(compiler, op_imm | T(src1) | D(dst) | SH_IMM(src2), DR(dst))); \ |
| } \ |
| else { \ |
| if (op & SLJIT_SET_E) \ |
| FAIL_IF(push_inst(compiler, op_norm | S(src2) | T(src1) | DA(EQUAL_FLAG), EQUAL_FLAG)); \ |
| if (CHECK_FLAGS(SLJIT_SET_E)) \ |
| FAIL_IF(push_inst(compiler, op_norm | S(src2) | T(src1) | D(dst), DR(dst))); \ |
| } |
| |
| static SLJIT_INLINE int emit_single_op(struct sljit_compiler *compiler, int op, int flags, |
| int dst, int src1, sljit_w src2) |
| { |
| int overflow_ra = 0; |
| |
| switch (GET_OPCODE(op)) { |
| case SLJIT_ADD: |
| if (flags & SRC2_IMM) { |
| if (op & SLJIT_SET_O) { |
| FAIL_IF(push_inst(compiler, SRL | T(src1) | DA(TMP_EREG1) | SH_IMM(31), TMP_EREG1)); |
| if (src2 < 0) |
| FAIL_IF(push_inst(compiler, XORI | SA(TMP_EREG1) | TA(TMP_EREG1) | IMM(1), TMP_EREG1)); |
| } |
| if (op & SLJIT_SET_E) |
| FAIL_IF(push_inst(compiler, ADDIU | S(src1) | TA(EQUAL_FLAG) | IMM(src2), EQUAL_FLAG)); |
| if (op & SLJIT_SET_C) { |
| if (src2 >= 0) |
| FAIL_IF(push_inst(compiler, ORI | S(src1) | TA(ULESS_FLAG) | IMM(src2), ULESS_FLAG)); |
| else { |
| FAIL_IF(push_inst(compiler, ADDIU | SA(0) | TA(ULESS_FLAG) | IMM(src2), ULESS_FLAG)); |
| FAIL_IF(push_inst(compiler, OR | S(src1) | TA(ULESS_FLAG) | DA(ULESS_FLAG), ULESS_FLAG)); |
| } |
| } |
| /* dst may be the same as src1 or src2. */ |
| if (CHECK_FLAGS(SLJIT_SET_E)) |
| FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(src2), DR(dst))); |
| if (op & SLJIT_SET_O) { |
| FAIL_IF(push_inst(compiler, SRL | T(dst) | DA(OVERFLOW_FLAG) | SH_IMM(31), OVERFLOW_FLAG)); |
| if (src2 < 0) |
| FAIL_IF(push_inst(compiler, XORI | SA(OVERFLOW_FLAG) | TA(OVERFLOW_FLAG) | IMM(1), OVERFLOW_FLAG)); |
| } |
| } |
| else { |
| if (op & SLJIT_SET_O) { |
| FAIL_IF(push_inst(compiler, XOR | S(src1) | T(src2) | DA(TMP_EREG1), TMP_EREG1)); |
| FAIL_IF(push_inst(compiler, SRL | TA(TMP_EREG1) | DA(TMP_EREG1) | SH_IMM(31), TMP_EREG1)); |
| if (src1 != dst) |
| overflow_ra = DR(src1); |
| else if (src2 != dst) |
| overflow_ra = DR(src2); |
| else { |
| /* Rare ocasion. */ |
| FAIL_IF(push_inst(compiler, ADDU | S(src1) | TA(0) | DA(TMP_EREG2), TMP_EREG2)); |
| overflow_ra = TMP_EREG2; |
| } |
| } |
| if (op & SLJIT_SET_E) |
| FAIL_IF(push_inst(compiler, ADDU | S(src1) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG)); |
| if (op & SLJIT_SET_C) |
| FAIL_IF(push_inst(compiler, OR | S(src1) | T(src2) | DA(ULESS_FLAG), ULESS_FLAG)); |
| /* dst may be the same as src1 or src2. */ |
| if (CHECK_FLAGS(SLJIT_SET_E)) |
| FAIL_IF(push_inst(compiler, ADDU | S(src1) | T(src2) | D(dst), DR(dst))); |
| if (op & SLJIT_SET_O) { |
| FAIL_IF(push_inst(compiler, XOR | S(dst) | TA(overflow_ra) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG)); |
| FAIL_IF(push_inst(compiler, SRL | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG) | SH_IMM(31), OVERFLOW_FLAG)); |
| } |
| } |
| |
| /* a + b >= a | b (otherwise, the carry should be set to 1). */ |
| if (op & SLJIT_SET_C) |
| FAIL_IF(push_inst(compiler, SLTU | S(dst) | TA(ULESS_FLAG) | DA(ULESS_FLAG), ULESS_FLAG)); |
| if (op & SLJIT_SET_O) |
| return push_inst(compiler, MOVN | SA(0) | TA(TMP_EREG1) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG); |
| return SLJIT_SUCCESS; |
| |
| case SLJIT_ADDC: |
| if (flags & SRC2_IMM) { |
| if (op & SLJIT_SET_C) { |
| if (src2 >= 0) |
| FAIL_IF(push_inst(compiler, ORI | S(src1) | TA(TMP_EREG1) | IMM(src2), TMP_EREG1)); |
| else { |
| FAIL_IF(push_inst(compiler, ADDIU | SA(0) | TA(TMP_EREG1) | IMM(src2), TMP_EREG1)); |
| FAIL_IF(push_inst(compiler, OR | S(src1) | TA(TMP_EREG1) | DA(TMP_EREG1), TMP_EREG1)); |
| } |
| } |
| FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(src2), DR(dst))); |
| } else { |
| if (op & SLJIT_SET_C) |
| FAIL_IF(push_inst(compiler, OR | S(src1) | T(src2) | DA(TMP_EREG1), TMP_EREG1)); |
| /* dst may be the same as src1 or src2. */ |
| FAIL_IF(push_inst(compiler, ADDU | S(src1) | T(src2) | D(dst), DR(dst))); |
| } |
| if (op & SLJIT_SET_C) |
| FAIL_IF(push_inst(compiler, SLTU | S(dst) | TA(TMP_EREG1) | DA(TMP_EREG1), TMP_EREG1)); |
| |
| FAIL_IF(push_inst(compiler, ADDU | S(dst) | TA(ULESS_FLAG) | D(dst), DR(dst))); |
| if (!(op & SLJIT_SET_C)) |
| return SLJIT_SUCCESS; |
| |
| /* Set TMP_EREG2 (dst == 0) && (ULESS_FLAG == 1). */ |
| FAIL_IF(push_inst(compiler, SLTIU | S(dst) | TA(TMP_EREG2) | IMM(1), TMP_EREG2)); |
| FAIL_IF(push_inst(compiler, AND | SA(TMP_EREG2) | TA(ULESS_FLAG) | DA(TMP_EREG2), TMP_EREG2)); |
| /* Set carry flag. */ |
| return push_inst(compiler, OR | SA(TMP_EREG2) | TA(TMP_EREG1) | DA(ULESS_FLAG), ULESS_FLAG); |
| |
| case SLJIT_SUB: |
| if ((flags & SRC2_IMM) && ((op & (SLJIT_SET_S | SLJIT_SET_U)) || src2 == SIMM_MIN)) { |
| FAIL_IF(push_inst(compiler, ADDIU | SA(0) | T(TMP_REG2) | IMM(src2), DR(TMP_REG2))); |
| src2 = TMP_REG2; |
| flags &= ~SRC2_IMM; |
| } |
| |
| if (flags & SRC2_IMM) { |
| if (op & SLJIT_SET_O) { |
| FAIL_IF(push_inst(compiler, SRL | T(src1) | DA(TMP_EREG1) | SH_IMM(31), TMP_EREG1)); |
| if (src2 < 0) |
| FAIL_IF(push_inst(compiler, XORI | SA(TMP_EREG1) | TA(TMP_EREG1) | IMM(1), TMP_EREG1)); |
| if (src1 != dst) |
| overflow_ra = DR(src1); |
| else { |
| /* Rare ocasion. */ |
| FAIL_IF(push_inst(compiler, ADDU | S(src1) | TA(0) | DA(TMP_EREG2), TMP_EREG2)); |
| overflow_ra = TMP_EREG2; |
| } |
| } |
| if (op & SLJIT_SET_E) |
| FAIL_IF(push_inst(compiler, ADDIU | S(src1) | TA(EQUAL_FLAG) | IMM(-src2), EQUAL_FLAG)); |
| if (op & SLJIT_SET_C) |
| FAIL_IF(push_inst(compiler, SLTIU | S(src1) | TA(ULESS_FLAG) | IMM(src2), ULESS_FLAG)); |
| /* dst may be the same as src1 or src2. */ |
| if (CHECK_FLAGS(SLJIT_SET_E)) |
| FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(-src2), DR(dst))); |
| } |
| else { |
| if (op & SLJIT_SET_O) { |
| FAIL_IF(push_inst(compiler, XOR | S(src1) | T(src2) | DA(TMP_EREG1), TMP_EREG1)); |
| FAIL_IF(push_inst(compiler, SRL | TA(TMP_EREG1) | DA(TMP_EREG1) | SH_IMM(31), TMP_EREG1)); |
| if (src1 != dst) |
| overflow_ra = DR(src1); |
| else { |
| /* Rare ocasion. */ |
| FAIL_IF(push_inst(compiler, ADDU | S(src1) | TA(0) | DA(TMP_EREG2), TMP_EREG2)); |
| overflow_ra = TMP_EREG2; |
| } |
| } |
| if (op & SLJIT_SET_E) |
| FAIL_IF(push_inst(compiler, SUBU | S(src1) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG)); |
| if (op & (SLJIT_SET_U | SLJIT_SET_C)) |
| FAIL_IF(push_inst(compiler, SLTU | S(src1) | T(src2) | DA(ULESS_FLAG), ULESS_FLAG)); |
| if (op & SLJIT_SET_U) |
| FAIL_IF(push_inst(compiler, SLTU | S(src2) | T(src1) | DA(UGREATER_FLAG), UGREATER_FLAG)); |
| if (op & SLJIT_SET_S) { |
| FAIL_IF(push_inst(compiler, SLT | S(src1) | T(src2) | DA(LESS_FLAG), LESS_FLAG)); |
| FAIL_IF(push_inst(compiler, SLT | S(src2) | T(src1) | DA(GREATER_FLAG), GREATER_FLAG)); |
| } |
| /* dst may be the same as src1 or src2. */ |
| if (CHECK_FLAGS(SLJIT_SET_E | SLJIT_SET_S | SLJIT_SET_U | SLJIT_SET_C)) |
| FAIL_IF(push_inst(compiler, SUBU | S(src1) | T(src2) | D(dst), DR(dst))); |
| } |
| |
| if (op & SLJIT_SET_O) { |
| FAIL_IF(push_inst(compiler, XOR | S(dst) | TA(overflow_ra) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG)); |
| FAIL_IF(push_inst(compiler, SRL | TA(OVERFLOW_FLAG) | DA(OVERFLOW_FLAG) | SH_IMM(31), OVERFLOW_FLAG)); |
| return push_inst(compiler, MOVZ | SA(0) | TA(TMP_EREG1) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG); |
| } |
| return SLJIT_SUCCESS; |
| |
| case SLJIT_SUBC: |
| if ((flags & SRC2_IMM) && src2 == SIMM_MIN) { |
| FAIL_IF(push_inst(compiler, ADDIU | SA(0) | T(TMP_REG2) | IMM(src2), DR(TMP_REG2))); |
| src2 = TMP_REG2; |
| flags &= ~SRC2_IMM; |
| } |
| |
| if (flags & SRC2_IMM) { |
| if (op & SLJIT_SET_C) |
| FAIL_IF(push_inst(compiler, SLTIU | S(src1) | TA(TMP_EREG1) | IMM(-src2), TMP_EREG1)); |
| /* dst may be the same as src1 or src2. */ |
| FAIL_IF(push_inst(compiler, ADDIU | S(src1) | T(dst) | IMM(-src2), DR(dst))); |
| } |
| else { |
| if (op & SLJIT_SET_C) |
| FAIL_IF(push_inst(compiler, SLTU | S(src1) | T(src2) | DA(TMP_EREG1), TMP_EREG1)); |
| /* dst may be the same as src1 or src2. */ |
| FAIL_IF(push_inst(compiler, SUBU | S(src1) | T(src2) | D(dst), DR(dst))); |
| } |
| |
| if (op & SLJIT_SET_C) |
| FAIL_IF(push_inst(compiler, MOVZ | SA(ULESS_FLAG) | T(dst) | DA(TMP_EREG1), TMP_EREG1)); |
| |
| FAIL_IF(push_inst(compiler, SUBU | S(dst) | TA(ULESS_FLAG) | D(dst), DR(dst))); |
| |
| if (op & SLJIT_SET_C) |
| FAIL_IF(push_inst(compiler, ADDU | SA(TMP_EREG1) | TA(0) | DA(ULESS_FLAG), ULESS_FLAG)); |
| |
| return SLJIT_SUCCESS; |
| |
| case SLJIT_MUL: |
| SLJIT_ASSERT(!(flags & SRC2_IMM)); |
| if (!(op & SLJIT_SET_O)) { |
| #if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) |
| return push_inst(compiler, MUL | S(src1) | T(src2) | D(dst), DR(dst)); |
| #else |
| FAIL_IF(push_inst(compiler, MULT | S(src1) | T(src2), MOVABLE_INS)); |
| return push_inst(compiler, MFLO | D(dst), DR(dst)); |
| #endif |
| } |
| FAIL_IF(push_inst(compiler, MULT | S(src1) | T(src2), MOVABLE_INS)); |
| FAIL_IF(push_inst(compiler, MFHI | DA(TMP_EREG1), TMP_EREG1)); |
| FAIL_IF(push_inst(compiler, MFLO | D(dst), DR(dst))); |
| FAIL_IF(push_inst(compiler, SRA | T(dst) | DA(TMP_EREG2) | SH_IMM(31), TMP_EREG2)); |
| return push_inst(compiler, SUBU | SA(TMP_EREG1) | TA(TMP_EREG2) | DA(OVERFLOW_FLAG), OVERFLOW_FLAG); |
| |
| case SLJIT_AND: |
| EMIT_LOGICAL(ANDI, AND); |
| return SLJIT_SUCCESS; |
| |
| case SLJIT_OR: |
| EMIT_LOGICAL(ORI, OR); |
| return SLJIT_SUCCESS; |
| |
| case SLJIT_XOR: |
| EMIT_LOGICAL(XORI, XOR); |
| return SLJIT_SUCCESS; |
| |
| case SLJIT_SHL: |
| EMIT_SHIFT(SLL, SLLV); |
| return SLJIT_SUCCESS; |
| |
| case SLJIT_LSHR: |
| EMIT_SHIFT(SRL, SRLV); |
| return SLJIT_SUCCESS; |
| |
| case SLJIT_ASHR: |
| EMIT_SHIFT(SRA, SRAV); |
| return SLJIT_SUCCESS; |
| |
| case SLJIT_MOV: |
| case SLJIT_MOV_UI: |
| case SLJIT_MOV_SI: |
| SLJIT_ASSERT(src1 == TMP_REG1); |
| if (dst != src2) |
| return push_inst(compiler, ADDU | S(src2) | TA(0) | D(dst), DR(dst)); |
| return SLJIT_SUCCESS; |
| |
| case SLJIT_MOV_UB: |
| case SLJIT_MOV_SB: |
| SLJIT_ASSERT(src1 == TMP_REG1); |
| if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) { |
| if (op == SLJIT_MOV_SB) { |
| #if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) |
| return push_inst(compiler, SEB | T(src2) | D(dst), DR(dst)); |
| #else |
| FAIL_IF(push_inst(compiler, SLL | T(src2) | D(dst) | SH_IMM(24), DR(dst))); |
| return push_inst(compiler, SRA | T(dst) | D(dst) | SH_IMM(24), DR(dst)); |
| #endif |
| } |
| return push_inst(compiler, ANDI | S(src2) | T(dst) | IMM(0xff), DR(dst)); |
| } |
| else if (dst != src2) |
| SLJIT_ASSERT_STOP(); |
| return SLJIT_SUCCESS; |
| |
| case SLJIT_MOV_UH: |
| case SLJIT_MOV_SH: |
| SLJIT_ASSERT(src1 == TMP_REG1); |
| if ((flags & (REG_DEST | REG2_SOURCE)) == (REG_DEST | REG2_SOURCE)) { |
| if (op == SLJIT_MOV_SH) { |
| #if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) |
| return push_inst(compiler, SEH | T(src2) | D(dst), DR(dst)); |
| #else |
| FAIL_IF(push_inst(compiler, SLL | T(src2) | D(dst) | SH_IMM(16), DR(dst))); |
| return push_inst(compiler, SRA | T(dst) | D(dst) | SH_IMM(16), DR(dst)); |
| #endif |
| } |
| return push_inst(compiler, ANDI | S(src2) | T(dst) | IMM(0xffff), DR(dst)); |
| } |
| else if (dst != src2) |
| SLJIT_ASSERT_STOP(); |
| return SLJIT_SUCCESS; |
| |
| case SLJIT_NOT: |
| SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); |
| if (op & SLJIT_SET_E) |
| FAIL_IF(push_inst(compiler, NOR | S(src2) | T(src2) | DA(EQUAL_FLAG), EQUAL_FLAG)); |
| if (CHECK_FLAGS(SLJIT_SET_E)) |
| FAIL_IF(push_inst(compiler, NOR | S(src2) | T(src2) | D(dst), DR(dst))); |
| return SLJIT_SUCCESS; |
| |
| case SLJIT_CLZ: |
| SLJIT_ASSERT(src1 == TMP_REG1 && !(flags & SRC2_IMM)); |
| #if (defined SLJIT_MIPS_32_64 && SLJIT_MIPS_32_64) |
| if (op & SLJIT_SET_E) |
| FAIL_IF(push_inst(compiler, CLZ | S(src2) | TA(EQUAL_FLAG) | DA(EQUAL_FLAG), EQUAL_FLAG)); |
| if (CHECK_FLAGS(SLJIT_SET_E)) |
| FAIL_IF(push_inst(compiler, CLZ | S(src2) | T(dst) | D(dst), DR(dst))); |
| #else |
| if (SLJIT_UNLIKELY(flags & UNUSED_DEST)) { |
| FAIL_IF(push_inst(compiler, SRL | T(src2) | DA(EQUAL_FLAG) | SH_IMM(31), EQUAL_FLAG)); |
| return push_inst(compiler, XORI | SA(EQUAL_FLAG) | TA(EQUAL_FLAG) | IMM(1), EQUAL_FLAG); |
| } |
| /* Nearly all instructions are unmovable in the following sequence. */ |
| FAIL_IF(push_inst(compiler, ADDU_W | S(src2) | TA(0) | D(TMP_REG1), DR(TMP_REG1))); |
| /* Check zero. */ |
| FAIL_IF(push_inst(compiler, BEQ | S(TMP_REG1) | TA(0) | IMM(6), UNMOVABLE_INS)); |
| FAIL_IF(push_inst(compiler, ORI | SA(0) | T(dst) | IMM(32), UNMOVABLE_INS)); |
| /* Check sign bit. */ |
| FAIL_IF(push_inst(compiler, BLTZ | S(TMP_REG1) | IMM(4), UNMOVABLE_INS)); |
| FAIL_IF(push_inst(compiler, ORI | SA(0) | T(dst) | IMM(0), UNMOVABLE_INS)); |
| /* Loop for searching the highest bit. */ |
| FAIL_IF(push_inst(compiler, SLL | T(TMP_REG1) | D(TMP_REG1) | SH_IMM(1), DR(TMP_REG1))); |
| FAIL_IF(push_inst(compiler, BGEZ | S(TMP_REG1) | IMM(-2), UNMOVABLE_INS)); |
| FAIL_IF(push_inst(compiler, ADDIU_W | S(dst) | T(dst) | IMM(1), UNMOVABLE_INS)); |
| if (op & SLJIT_SET_E) |
| return push_inst(compiler, ADDU_W | S(dst) | TA(0) | DA(EQUAL_FLAG), EQUAL_FLAG); |
| #endif |
| return SLJIT_SUCCESS; |
| } |
| |
| SLJIT_ASSERT_STOP(); |
| return SLJIT_SUCCESS; |
| } |
| |
| static SLJIT_INLINE int emit_const(struct sljit_compiler *compiler, int reg, sljit_w init_value) |
| { |
| FAIL_IF(push_inst(compiler, LUI | T(reg) | IMM(init_value >> 16), DR(reg))); |
| return push_inst(compiler, ORI | S(reg) | T(reg) | IMM(init_value), DR(reg)); |
| } |
| |
| SLJIT_API_FUNC_ATTRIBUTE void sljit_set_jump_addr(sljit_uw addr, sljit_uw new_addr) |
| { |
| sljit_ins *inst = (sljit_ins*)addr; |
| |
| inst[0] = (inst[0] & 0xffff0000) | ((new_addr >> 16) & 0xffff); |
| inst[1] = (inst[1] & 0xffff0000) | (new_addr & 0xffff); |
| SLJIT_CACHE_FLUSH(inst, inst + 2); |
| } |
| |
| SLJIT_API_FUNC_ATTRIBUTE void sljit_set_const(sljit_uw addr, sljit_w new_constant) |
| { |
| sljit_ins *inst = (sljit_ins*)addr; |
| |
| inst[0] = (inst[0] & 0xffff0000) | ((new_constant >> 16) & 0xffff); |
| inst[1] = (inst[1] & 0xffff0000) | (new_constant & 0xffff); |
| SLJIT_CACHE_FLUSH(inst, inst + 2); |
| } |