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3626a3fe37
With this, we don't need movcond to determine which stack pointer is current. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Yoshinori Sato <ysato@users.sourceforge.jp> Message-Id: <20220417165130.695085-3-richard.henderson@linaro.org>
175 lines
4.8 KiB
C
175 lines
4.8 KiB
C
/*
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* RX emulation definition
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*
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* Copyright (c) 2019 Yoshinori Sato
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2 or later, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef RX_CPU_H
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#define RX_CPU_H
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#include "qemu/bitops.h"
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#include "hw/registerfields.h"
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#include "cpu-qom.h"
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#include "exec/cpu-defs.h"
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#include "qemu/cpu-float.h"
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/* PSW define */
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REG32(PSW, 0)
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FIELD(PSW, C, 0, 1)
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FIELD(PSW, Z, 1, 1)
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FIELD(PSW, S, 2, 1)
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FIELD(PSW, O, 3, 1)
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FIELD(PSW, I, 16, 1)
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FIELD(PSW, U, 17, 1)
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FIELD(PSW, PM, 20, 1)
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FIELD(PSW, IPL, 24, 4)
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/* FPSW define */
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REG32(FPSW, 0)
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FIELD(FPSW, RM, 0, 2)
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FIELD(FPSW, CV, 2, 1)
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FIELD(FPSW, CO, 3, 1)
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FIELD(FPSW, CZ, 4, 1)
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FIELD(FPSW, CU, 5, 1)
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FIELD(FPSW, CX, 6, 1)
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FIELD(FPSW, CE, 7, 1)
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FIELD(FPSW, CAUSE, 2, 6)
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FIELD(FPSW, DN, 8, 1)
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FIELD(FPSW, EV, 10, 1)
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FIELD(FPSW, EO, 11, 1)
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FIELD(FPSW, EZ, 12, 1)
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FIELD(FPSW, EU, 13, 1)
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FIELD(FPSW, EX, 14, 1)
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FIELD(FPSW, ENABLE, 10, 5)
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FIELD(FPSW, FV, 26, 1)
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FIELD(FPSW, FO, 27, 1)
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FIELD(FPSW, FZ, 28, 1)
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FIELD(FPSW, FU, 29, 1)
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FIELD(FPSW, FX, 30, 1)
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FIELD(FPSW, FLAGS, 26, 4)
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FIELD(FPSW, FS, 31, 1)
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enum {
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NUM_REGS = 16,
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};
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typedef struct CPUArchState {
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/* CPU registers */
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uint32_t regs[NUM_REGS]; /* general registers */
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uint32_t psw_o; /* O bit of status register */
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uint32_t psw_s; /* S bit of status register */
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uint32_t psw_z; /* Z bit of status register */
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uint32_t psw_c; /* C bit of status register */
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uint32_t psw_u;
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uint32_t psw_i;
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uint32_t psw_pm;
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uint32_t psw_ipl;
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uint32_t bpsw; /* backup status */
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uint32_t bpc; /* backup pc */
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uint32_t isp; /* global base register */
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uint32_t usp; /* vector base register */
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uint32_t pc; /* program counter */
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uint32_t intb; /* interrupt vector */
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uint32_t fintv;
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uint32_t fpsw;
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uint64_t acc;
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/* Fields up to this point are cleared by a CPU reset */
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struct {} end_reset_fields;
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/* Internal use */
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uint32_t in_sleep;
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uint32_t req_irq; /* Requested interrupt no (hard) */
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uint32_t req_ipl; /* Requested interrupt level */
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uint32_t ack_irq; /* execute irq */
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uint32_t ack_ipl; /* execute ipl */
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float_status fp_status;
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qemu_irq ack; /* Interrupt acknowledge */
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} CPURXState;
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/*
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* RXCPU:
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* @env: #CPURXState
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*
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* A RX CPU
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*/
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struct ArchCPU {
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/*< private >*/
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CPUState parent_obj;
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/*< public >*/
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CPUNegativeOffsetState neg;
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CPURXState env;
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};
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#define RX_CPU_TYPE_SUFFIX "-" TYPE_RX_CPU
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#define RX_CPU_TYPE_NAME(model) model RX_CPU_TYPE_SUFFIX
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#define CPU_RESOLVING_TYPE TYPE_RX_CPU
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const char *rx_crname(uint8_t cr);
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#ifndef CONFIG_USER_ONLY
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void rx_cpu_do_interrupt(CPUState *cpu);
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bool rx_cpu_exec_interrupt(CPUState *cpu, int int_req);
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#endif /* !CONFIG_USER_ONLY */
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void rx_cpu_dump_state(CPUState *cpu, FILE *f, int flags);
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int rx_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg);
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int rx_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
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hwaddr rx_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
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void rx_translate_init(void);
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void rx_cpu_list(void);
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void rx_cpu_unpack_psw(CPURXState *env, uint32_t psw, int rte);
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#define cpu_list rx_cpu_list
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#include "exec/cpu-all.h"
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#define CPU_INTERRUPT_SOFT CPU_INTERRUPT_TGT_INT_0
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#define CPU_INTERRUPT_FIR CPU_INTERRUPT_TGT_INT_1
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#define RX_CPU_IRQ 0
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#define RX_CPU_FIR 1
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static inline void cpu_get_tb_cpu_state(CPURXState *env, target_ulong *pc,
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target_ulong *cs_base, uint32_t *flags)
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{
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*pc = env->pc;
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*cs_base = 0;
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*flags = FIELD_DP32(0, PSW, PM, env->psw_pm);
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*flags = FIELD_DP32(*flags, PSW, U, env->psw_u);
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}
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static inline int cpu_mmu_index(CPURXState *env, bool ifetch)
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{
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return 0;
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}
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static inline uint32_t rx_cpu_pack_psw(CPURXState *env)
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{
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uint32_t psw = 0;
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psw = FIELD_DP32(psw, PSW, IPL, env->psw_ipl);
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psw = FIELD_DP32(psw, PSW, PM, env->psw_pm);
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psw = FIELD_DP32(psw, PSW, U, env->psw_u);
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psw = FIELD_DP32(psw, PSW, I, env->psw_i);
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psw = FIELD_DP32(psw, PSW, O, env->psw_o >> 31);
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psw = FIELD_DP32(psw, PSW, S, env->psw_s >> 31);
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psw = FIELD_DP32(psw, PSW, Z, env->psw_z == 0);
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psw = FIELD_DP32(psw, PSW, C, env->psw_c);
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return psw;
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}
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#endif /* RX_CPU_H */
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