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/*
* PA-RISC emulation cpu definitions for qemu.
*
* Copyright (c) 2016 Richard Henderson <rth@twiddle.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef HPPA_CPU_H
#define HPPA_CPU_H
#include "qemu-common.h"
#include "cpu-qom.h"
/* We only support hppa-linux-user at present, so 32-bit only. */
#define TARGET_LONG_BITS 32
#define TARGET_PHYS_ADDR_SPACE_BITS 32
#define TARGET_VIRT_ADDR_SPACE_BITS 32
#define CPUArchState struct CPUHPPAState
#include "exec/cpu-defs.h"
#include "fpu/softfloat.h"
#define TARGET_PAGE_BITS 12
#define ALIGNED_ONLY
#define NB_MMU_MODES 1
#define MMU_USER_IDX 0
#define TARGET_INSN_START_EXTRA_WORDS 1
#define EXCP_SYSCALL 1
#define EXCP_SYSCALL_LWS 2
#define EXCP_SIGSEGV 3
#define EXCP_SIGILL 4
#define EXCP_SIGFPE 5
typedef struct CPUHPPAState CPUHPPAState;
struct CPUHPPAState {
target_ulong gr[32];
uint64_t fr[32];
target_ulong sar;
target_ulong cr26;
target_ulong cr27;
target_ulong psw_n; /* boolean */
target_long psw_v; /* in most significant bit */
/* Splitting the carry-borrow field into the MSB and "the rest", allows
* for "the rest" to be deleted when it is unused, but the MSB is in use.
* In addition, it's easier to compute carry-in for bit B+1 than it is to
* compute carry-out for bit B (3 vs 4 insns for addition, assuming the
* host has the appropriate add-with-carry insn to compute the msb).
* Therefore the carry bits are stored as: cb_msb : cb & 0x11111110.
*/
target_ulong psw_cb; /* in least significant bit of next nibble */
target_ulong psw_cb_msb; /* boolean */
target_ulong iaoq_f; /* front */
target_ulong iaoq_b; /* back, aka next instruction */
target_ulong ior; /* interrupt offset register */
uint32_t fr0_shadow; /* flags, c, ca/cq, rm, d, enables */
float_status fp_status;
/* Those resources are used only in QEMU core */
CPU_COMMON
};
/**
* HPPACPU:
* @env: #CPUHPPAState
*
* An HPPA CPU.
*/
struct HPPACPU {
/*< private >*/
CPUState parent_obj;
/*< public >*/
CPUHPPAState env;
};
static inline HPPACPU *hppa_env_get_cpu(CPUHPPAState *env)
{
return container_of(env, HPPACPU, env);
}
#define ENV_GET_CPU(e) CPU(hppa_env_get_cpu(e))
#define ENV_OFFSET offsetof(HPPACPU, env)
#include "exec/cpu-all.h"
static inline int cpu_mmu_index(CPUHPPAState *env, bool ifetch)
{
return 0;
}
void hppa_translate_init(void);
HPPACPU *cpu_hppa_init(const char *cpu_model);
#define cpu_init(cpu_model) CPU(cpu_hppa_init(cpu_model))
void hppa_cpu_list(FILE *f, fprintf_function cpu_fprintf);
static inline void cpu_get_tb_cpu_state(CPUHPPAState *env, target_ulong *pc,
target_ulong *cs_base,
uint32_t *pflags)
{
*pc = env->iaoq_f;
*cs_base = env->iaoq_b;
*pflags = env->psw_n;
}
target_ulong cpu_hppa_get_psw(CPUHPPAState *env);
void cpu_hppa_put_psw(CPUHPPAState *env, target_ulong);
void cpu_hppa_loaded_fr0(CPUHPPAState *env);
#define cpu_signal_handler cpu_hppa_signal_handler
int cpu_hppa_signal_handler(int host_signum, void *pinfo, void *puc);
int hppa_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw, int midx);
int hppa_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
int hppa_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
void hppa_cpu_do_interrupt(CPUState *cpu);
bool hppa_cpu_exec_interrupt(CPUState *cpu, int int_req);
void hppa_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function, int);
#endif /* HPPA_CPU_H */
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