| /* 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 |