60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
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/*
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* Copyright 2015 Tilera Corporation. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for
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* more details.
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*/
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#ifndef __ASM_TILE_INSN_H
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#define __ASM_TILE_INSN_H
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#include <arch/opcode.h>
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static inline tilegx_bundle_bits NOP(void)
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{
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return create_UnaryOpcodeExtension_X0(FNOP_UNARY_OPCODE_X0) |
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create_RRROpcodeExtension_X0(UNARY_RRR_0_OPCODE_X0) |
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create_Opcode_X0(RRR_0_OPCODE_X0) |
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create_UnaryOpcodeExtension_X1(NOP_UNARY_OPCODE_X1) |
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create_RRROpcodeExtension_X1(UNARY_RRR_0_OPCODE_X1) |
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create_Opcode_X1(RRR_0_OPCODE_X1);
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}
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static inline tilegx_bundle_bits tilegx_gen_branch(unsigned long pc,
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unsigned long addr,
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bool link)
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{
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tilegx_bundle_bits opcode_x0, opcode_x1;
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long pcrel_by_instr = (addr - pc) >> TILEGX_LOG2_BUNDLE_SIZE_IN_BYTES;
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if (link) {
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/* opcode: jal addr */
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opcode_x1 =
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create_Opcode_X1(JUMP_OPCODE_X1) |
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create_JumpOpcodeExtension_X1(JAL_JUMP_OPCODE_X1) |
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create_JumpOff_X1(pcrel_by_instr);
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} else {
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/* opcode: j addr */
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opcode_x1 =
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create_Opcode_X1(JUMP_OPCODE_X1) |
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create_JumpOpcodeExtension_X1(J_JUMP_OPCODE_X1) |
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create_JumpOff_X1(pcrel_by_instr);
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}
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/* opcode: fnop */
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opcode_x0 =
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create_UnaryOpcodeExtension_X0(FNOP_UNARY_OPCODE_X0) |
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create_RRROpcodeExtension_X0(UNARY_RRR_0_OPCODE_X0) |
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create_Opcode_X0(RRR_0_OPCODE_X0);
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return opcode_x1 | opcode_x0;
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}
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#endif /* __ASM_TILE_INSN_H */
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