106 lines
3.2 KiB
C
106 lines
3.2 KiB
C
/* Mitsubishi Electric Corp. D30V Simulator.
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Copyright (C) 1997, Free Software Foundation, Inc.
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Contributed by Cygnus Support.
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This file is part of GDB, the GNU debugger.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifndef _D30V_ALU_H_
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#define _D30V_ALU_H_
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#define ALU_CARRY (PSW_VAL(PSW_C) != 0)
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#include "sim-alu.h"
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#define ALU16_END(TARG, HIGH) \
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{ \
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unsigned32 mask, value; \
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if (ALU16_HAD_OVERFLOW) { \
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mask = BIT32 (PSW_V) | BIT32 (PSW_VA) | BIT32 (PSW_C); \
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value = BIT32 (PSW_V) | BIT32 (PSW_VA); \
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} \
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else { \
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mask = BIT32 (PSW_V) | BIT32 (PSW_C); \
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value = 0; \
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} \
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if (ALU16_HAD_CARRY_BORROW) \
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value |= BIT32 (PSW_C); \
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if (HIGH) \
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WRITE32_QUEUE_MASK (TARG, ALU16_OVERFLOW_RESULT<<16, 0xffff0000); \
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else \
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WRITE32_QUEUE_MASK (TARG, ALU16_OVERFLOW_RESULT, 0x0000ffff); \
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WRITE32_QUEUE_MASK (&PSW, value, mask); \
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}
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#define ALU32_END(TARG) \
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{ \
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unsigned32 mask, value; \
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if (ALU32_HAD_OVERFLOW) { \
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mask = BIT32 (PSW_V) | BIT32 (PSW_VA) | BIT32 (PSW_C); \
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value = BIT32 (PSW_V) | BIT32 (PSW_VA); \
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} \
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else { \
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mask = BIT32 (PSW_V) | BIT32 (PSW_C); \
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value = 0; \
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} \
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if (ALU32_HAD_CARRY_BORROW) \
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value |= BIT32 (PSW_C); \
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WRITE32_QUEUE (TARG, ALU32_OVERFLOW_RESULT); \
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WRITE32_QUEUE_MASK (&PSW, value, mask); \
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}
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#define ALU_END(TARG) ALU32_END(TARG)
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/* PSW & Flag manipulation */
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#define PSW_SET(BIT,VAL) BLIT32(PSW, (BIT), (VAL))
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#define PSW_VAL(BIT) EXTRACTED32(PSW, (BIT), (BIT))
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#define PSW_F(FLAG) (17 + ((FLAG) % 8) * 2)
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#define PSW_FLAG_SET(FLAG,VAL) PSW_SET(PSW_F(FLAG), VAL)
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#define PSW_FLAG_VAL(FLAG) PSW_VAL(PSW_F(FLAG))
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#define PSW_SET_QUEUE(BIT,VAL) \
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do { \
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unsigned32 mask = BIT32 (BIT); \
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unsigned32 bitval = (VAL) ? mask : 0; \
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WRITE32_QUEUE_MASK (&PSW, bitval, mask); \
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} while (0)
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#define PSW_FLAG_SET_QUEUE(FLAG,VAL) \
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do { \
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unsigned32 mask = BIT32 (PSW_F (FLAG)); \
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unsigned32 bitval = (VAL) ? mask : 0; \
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WRITE32_QUEUE_MASK (&PSW, bitval, mask); \
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} while (0)
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/* Bring data in from the cold */
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#define IMEM(EA) \
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(sim_core_read_8(STATE_CPU (sd, 0), cia, exec_map, (EA)))
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#define MEM(SIGN, EA, NR_BYTES) \
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((SIGN##_##NR_BYTES) sim_core_read_unaligned_##NR_BYTES(STATE_CPU (sd, 0), cia, read_map, (EA)))
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#define STORE(EA, NR_BYTES, VAL) \
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do { \
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sim_core_write_unaligned_##NR_BYTES(STATE_CPU (sd, 0), cia, write_map, (EA), (VAL)); \
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} while (0)
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#endif
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