1 /* 2 * Copyright 2015 Tilera Corporation. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License 6 * as published by the Free Software Foundation, version 2. 7 * 8 * This program is distributed in the hope that it will be useful, but 9 * WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 11 * NON INFRINGEMENT. See the GNU General Public License for 12 * more details. 13 */ 14 #ifndef __ASM_TILE_INSN_H 15 #define __ASM_TILE_INSN_H 16 17 #include <arch/opcode.h> 18 NOP(void)19static inline tilegx_bundle_bits NOP(void) 20 { 21 return create_UnaryOpcodeExtension_X0(FNOP_UNARY_OPCODE_X0) | 22 create_RRROpcodeExtension_X0(UNARY_RRR_0_OPCODE_X0) | 23 create_Opcode_X0(RRR_0_OPCODE_X0) | 24 create_UnaryOpcodeExtension_X1(NOP_UNARY_OPCODE_X1) | 25 create_RRROpcodeExtension_X1(UNARY_RRR_0_OPCODE_X1) | 26 create_Opcode_X1(RRR_0_OPCODE_X1); 27 } 28 tilegx_gen_branch(unsigned long pc,unsigned long addr,bool link)29static inline tilegx_bundle_bits tilegx_gen_branch(unsigned long pc, 30 unsigned long addr, 31 bool link) 32 { 33 tilegx_bundle_bits opcode_x0, opcode_x1; 34 long pcrel_by_instr = (addr - pc) >> TILEGX_LOG2_BUNDLE_SIZE_IN_BYTES; 35 36 if (link) { 37 /* opcode: jal addr */ 38 opcode_x1 = 39 create_Opcode_X1(JUMP_OPCODE_X1) | 40 create_JumpOpcodeExtension_X1(JAL_JUMP_OPCODE_X1) | 41 create_JumpOff_X1(pcrel_by_instr); 42 } else { 43 /* opcode: j addr */ 44 opcode_x1 = 45 create_Opcode_X1(JUMP_OPCODE_X1) | 46 create_JumpOpcodeExtension_X1(J_JUMP_OPCODE_X1) | 47 create_JumpOff_X1(pcrel_by_instr); 48 } 49 50 /* opcode: fnop */ 51 opcode_x0 = 52 create_UnaryOpcodeExtension_X0(FNOP_UNARY_OPCODE_X0) | 53 create_RRROpcodeExtension_X0(UNARY_RRR_0_OPCODE_X0) | 54 create_Opcode_X0(RRR_0_OPCODE_X0); 55 56 return opcode_x1 | opcode_x0; 57 } 58 59 #endif /* __ASM_TILE_INSN_H */ 60