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[/] [openrisc/] [tags/] [or1ksim/] [or1ksim-0.5.1rc1/] [cpu/] [or32/] [op-1t-op.h] - Rev 757
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/* op-1t-op.h -- Micro operations useing only one temporary Copyright (C) 2005 György `nog' Jeney, nog@sdf.lonestar.org This file is part of OpenRISC 1000 Architectural Simulator. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ __or_dynop void glue(op_imm, T)(void) { T0 = OP_PARAM1; } __or_dynop void glue(op_clear, T)(void) { T0 = 0; } __or_dynop void glue(op_check_null_except_delay, T)(void) { if(!T0) { /* Do exception */ env->sprs[SPR_EEAR_BASE] = env->pc - 4; env->delay_insn = 0; do_jump(EXCEPT_ILLEGAL); } } __or_dynop void glue(op_check_null_except, T)(void) { if(!T0) { /* Do exception */ env->sprs[SPR_EEAR_BASE] = env->pc; do_jump(EXCEPT_ILLEGAL); } } __or_dynop void glue(op_calc_insn_ea, T)(void) { env->insn_ea = T0 + OP_PARAM1; } __or_dynop void glue(op_macrc, T)(void) { /* FIXME: How is this supposed to work? The architechture manual says that * the low 32-bits shall be saved into rD. I have just copied this code from * insnset.c to make testbench/mul pass */ int64_t temp = env->sprs[SPR_MACLO] | ((int64_t)env->sprs[SPR_MACHI] << 32); T0 = (orreg_t)(temp >> 28); env->sprs[SPR_MACLO] = 0; env->sprs[SPR_MACHI] = 0; } __or_dynop void glue(op_mac_imm, T)(void) { int64_t temp = env->sprs[SPR_MACLO] | ((int64_t)env->sprs[SPR_MACHI] << 32); temp += (int64_t)T0 * (int64_t)OP_PARAM1; env->sprs[SPR_MACLO] = temp & 0xffffffff; env->sprs[SPR_MACHI] = temp >> 32; }
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