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/*
* RX emulation definition
*
* Copyright (c) 2019 Yoshinori Sato
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2 or later, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef RX_CPU_H
#define RX_CPU_H
#include "qemu/bitops.h"
#include "hw/registerfields.h"
#include "cpu-qom.h"
#include "exec/cpu-defs.h"
#include "qemu/cpu-float.h"
/* PSW define */
REG32(PSW, 0)
FIELD(PSW, C, 0, 1)
FIELD(PSW, Z, 1, 1)
FIELD(PSW, S, 2, 1)
FIELD(PSW, O, 3, 1)
FIELD(PSW, I, 16, 1)
FIELD(PSW, U, 17, 1)
FIELD(PSW, PM, 20, 1)
FIELD(PSW, IPL, 24, 4)
/* FPSW define */
REG32(FPSW, 0)
FIELD(FPSW, RM, 0, 2)
FIELD(FPSW, CV, 2, 1)
FIELD(FPSW, CO, 3, 1)
FIELD(FPSW, CZ, 4, 1)
FIELD(FPSW, CU, 5, 1)
FIELD(FPSW, CX, 6, 1)
FIELD(FPSW, CE, 7, 1)
FIELD(FPSW, CAUSE, 2, 6)
FIELD(FPSW, DN, 8, 1)
FIELD(FPSW, EV, 10, 1)
FIELD(FPSW, EO, 11, 1)
FIELD(FPSW, EZ, 12, 1)
FIELD(FPSW, EU, 13, 1)
FIELD(FPSW, EX, 14, 1)
FIELD(FPSW, ENABLE, 10, 5)
FIELD(FPSW, FV, 26, 1)
FIELD(FPSW, FO, 27, 1)
FIELD(FPSW, FZ, 28, 1)
FIELD(FPSW, FU, 29, 1)
FIELD(FPSW, FX, 30, 1)
FIELD(FPSW, FLAGS, 26, 4)
FIELD(FPSW, FS, 31, 1)
enum {
NUM_REGS = 16,
};
typedef struct CPUArchState {
/* CPU registers */
uint32_t regs[NUM_REGS]; /* general registers */
uint32_t psw_o; /* O bit of status register */
uint32_t psw_s; /* S bit of status register */
uint32_t psw_z; /* Z bit of status register */
uint32_t psw_c; /* C bit of status register */
uint32_t psw_u;
uint32_t psw_i;
uint32_t psw_pm;
uint32_t psw_ipl;
uint32_t bpsw; /* backup status */
uint32_t bpc; /* backup pc */
uint32_t isp; /* global base register */
uint32_t usp; /* vector base register */
uint32_t pc; /* program counter */
uint32_t intb; /* interrupt vector */
uint32_t fintv;
uint32_t fpsw;
uint64_t acc;
/* Fields up to this point are cleared by a CPU reset */
struct {} end_reset_fields;
/* Internal use */
uint32_t in_sleep;
uint32_t req_irq; /* Requested interrupt no (hard) */
uint32_t req_ipl; /* Requested interrupt level */
uint32_t ack_irq; /* execute irq */
uint32_t ack_ipl; /* execute ipl */
float_status fp_status;
qemu_irq ack; /* Interrupt acknowledge */
} CPURXState;
/*
* RXCPU:
* @env: #CPURXState
*
* A RX CPU
*/
struct ArchCPU {
CPUState parent_obj;
CPURXState env;
};
/*
* RXCPUClass:
* @parent_realize: The parent class' realize handler.
* @parent_phases: The parent class' reset phase handlers.
*
* A RX CPU model.
*/
struct RXCPUClass {
CPUClass parent_class;
DeviceRealize parent_realize;
ResettablePhases parent_phases;
};
#define CPU_RESOLVING_TYPE TYPE_RX_CPU
const char *rx_crname(uint8_t cr);
#ifndef CONFIG_USER_ONLY
void rx_cpu_do_interrupt(CPUState *cpu);
bool rx_cpu_exec_interrupt(CPUState *cpu, int int_req);
hwaddr rx_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
#endif /* !CONFIG_USER_ONLY */
void rx_cpu_dump_state(CPUState *cpu, FILE *f, int flags);
int rx_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
int rx_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
void rx_translate_init(void);
void rx_cpu_list(void);
void rx_cpu_unpack_psw(CPURXState *env, uint32_t psw, int rte);
#define cpu_list rx_cpu_list
#include "exec/cpu-all.h"
#define CPU_INTERRUPT_SOFT CPU_INTERRUPT_TGT_INT_0
#define CPU_INTERRUPT_FIR CPU_INTERRUPT_TGT_INT_1
#define RX_CPU_IRQ 0
#define RX_CPU_FIR 1
static inline void cpu_get_tb_cpu_state(CPURXState *env, vaddr *pc,
uint64_t *cs_base, uint32_t *flags)
{
*pc = env->pc;
*cs_base = 0;
*flags = FIELD_DP32(0, PSW, PM, env->psw_pm);
*flags = FIELD_DP32(*flags, PSW, U, env->psw_u);
}
static inline int cpu_mmu_index(CPURXState *env, bool ifetch)
{
return 0;
}
static inline uint32_t rx_cpu_pack_psw(CPURXState *env)
{
uint32_t psw = 0;
psw = FIELD_DP32(psw, PSW, IPL, env->psw_ipl);
psw = FIELD_DP32(psw, PSW, PM, env->psw_pm);
psw = FIELD_DP32(psw, PSW, U, env->psw_u);
psw = FIELD_DP32(psw, PSW, I, env->psw_i);
psw = FIELD_DP32(psw, PSW, O, env->psw_o >> 31);
psw = FIELD_DP32(psw, PSW, S, env->psw_s >> 31);
psw = FIELD_DP32(psw, PSW, Z, env->psw_z == 0);
psw = FIELD_DP32(psw, PSW, C, env->psw_c);
return psw;
}
#endif /* RX_CPU_H */
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