107 lines
3.2 KiB
C
107 lines
3.2 KiB
C
|
/* Mitsubishi Electric Corp. D30V Simulator.
|
||
|
|
Copyright (C) 1997, Free Software Foundation, Inc.
|
||
|
|
Contributed by Cygnus Support.
|
||
|
|
|
||
|
|
This file is part of GDB, the GNU debugger.
|
||
|
|
|
||
|
|
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, 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.,
|
||
|
|
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef _D30V_ALU_H_
|
||
|
|
#define _D30V_ALU_H_
|
||
|
|
|
||
|
|
#define ALU_CARRY (PSW_VAL(PSW_C) != 0)
|
||
|
|
|
||
|
|
#include "sim-alu.h"
|
||
|
|
|
||
|
|
#define ALU16_END(TARG, HIGH) \
|
||
|
|
{ \
|
||
|
|
unsigned32 mask, value; \
|
||
|
|
if (ALU16_HAD_OVERFLOW) { \
|
||
|
|
mask = BIT32 (PSW_V) | BIT32 (PSW_VA) | BIT32 (PSW_C); \
|
||
|
|
value = BIT32 (PSW_V) | BIT32 (PSW_VA); \
|
||
|
|
} \
|
||
|
|
else { \
|
||
|
|
mask = BIT32 (PSW_V) | BIT32 (PSW_C); \
|
||
|
|
value = 0; \
|
||
|
|
} \
|
||
|
|
if (ALU16_HAD_CARRY_BORROW) \
|
||
|
|
value |= BIT32 (PSW_C); \
|
||
|
|
if (HIGH) \
|
||
|
|
WRITE32_QUEUE_MASK (TARG, ALU16_OVERFLOW_RESULT<<16, 0xffff0000); \
|
||
|
|
else \
|
||
|
|
WRITE32_QUEUE_MASK (TARG, ALU16_OVERFLOW_RESULT, 0x0000ffff); \
|
||
|
|
WRITE32_QUEUE_MASK (&PSW, value, mask); \
|
||
|
|
}
|
||
|
|
|
||
|
|
#define ALU32_END(TARG) \
|
||
|
|
{ \
|
||
|
|
unsigned32 mask, value; \
|
||
|
|
if (ALU32_HAD_OVERFLOW) { \
|
||
|
|
mask = BIT32 (PSW_V) | BIT32 (PSW_VA) | BIT32 (PSW_C); \
|
||
|
|
value = BIT32 (PSW_V) | BIT32 (PSW_VA); \
|
||
|
|
} \
|
||
|
|
else { \
|
||
|
|
mask = BIT32 (PSW_V) | BIT32 (PSW_C); \
|
||
|
|
value = 0; \
|
||
|
|
} \
|
||
|
|
if (ALU32_HAD_CARRY_BORROW) \
|
||
|
|
value |= BIT32 (PSW_C); \
|
||
|
|
WRITE32_QUEUE (TARG, ALU32_OVERFLOW_RESULT); \
|
||
|
|
WRITE32_QUEUE_MASK (&PSW, value, mask); \
|
||
|
|
}
|
||
|
|
|
||
|
|
#define ALU_END(TARG) ALU32_END(TARG)
|
||
|
|
|
||
|
|
|
||
|
|
/* PSW & Flag manipulation */
|
||
|
|
|
||
|
|
#define PSW_SET(BIT,VAL) BLIT32(PSW, (BIT), (VAL))
|
||
|
|
#define PSW_VAL(BIT) EXTRACTED32(PSW, (BIT), (BIT))
|
||
|
|
|
||
|
|
#define PSW_F(FLAG) (17 + ((FLAG) % 8) * 2)
|
||
|
|
#define PSW_FLAG_SET(FLAG,VAL) PSW_SET(PSW_F(FLAG), VAL)
|
||
|
|
#define PSW_FLAG_VAL(FLAG) PSW_VAL(PSW_F(FLAG))
|
||
|
|
|
||
|
|
#define PSW_SET_QUEUE(BIT,VAL) \
|
||
|
|
do { \
|
||
|
|
unsigned32 mask = BIT32 (BIT); \
|
||
|
|
unsigned32 bitval = (VAL) ? mask : 0; \
|
||
|
|
WRITE32_QUEUE_MASK (&PSW, bitval, mask); \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#define PSW_FLAG_SET_QUEUE(FLAG,VAL) \
|
||
|
|
do { \
|
||
|
|
unsigned32 mask = BIT32 (PSW_F (FLAG)); \
|
||
|
|
unsigned32 bitval = (VAL) ? mask : 0; \
|
||
|
|
WRITE32_QUEUE_MASK (&PSW, bitval, mask); \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
/* Bring data in from the cold */
|
||
|
|
|
||
|
|
#define IMEM(EA) \
|
||
|
|
(sim_core_read_8(STATE_CPU (sd, 0), cia, exec_map, (EA)))
|
||
|
|
|
||
|
|
#define MEM(SIGN, EA, NR_BYTES) \
|
||
|
|
((SIGN##_##NR_BYTES) sim_core_read_unaligned_##NR_BYTES(STATE_CPU (sd, 0), cia, read_map, (EA)))
|
||
|
|
|
||
|
|
#define STORE(EA, NR_BYTES, VAL) \
|
||
|
|
do { \
|
||
|
|
sim_core_write_unaligned_##NR_BYTES(STATE_CPU (sd, 0), cia, write_map, (EA), (VAL)); \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|