| #include <stdio.h> |
| #include <ctype.h> |
| #include "ansidecl.h" |
| #include "gdb/callback.h" |
| #include "opcode/mn10300.h" |
| #include <limits.h> |
| #include "gdb/remote-sim.h" |
| #include "bfd.h" |
| #include "sim-fpu.h" |
| |
| #ifndef INLINE |
| #ifdef __GNUC__ |
| #define INLINE inline |
| #else |
| #define INLINE |
| #endif |
| #endif |
| |
| extern host_callback *mn10300_callback; |
| extern SIM_DESC simulator; |
| |
| #define DEBUG_TRACE 0x00000001 |
| #define DEBUG_VALUES 0x00000002 |
| |
| extern int mn10300_debug; |
| |
| #if UCHAR_MAX == 255 |
| typedef unsigned char uint8; |
| typedef signed char int8; |
| #else |
| #error "Char is not an 8-bit type" |
| #endif |
| |
| #if SHRT_MAX == 32767 |
| typedef unsigned short uint16; |
| typedef signed short int16; |
| #else |
| #error "Short is not a 16-bit type" |
| #endif |
| |
| #if INT_MAX == 2147483647 |
| |
| typedef unsigned int uint32; |
| typedef signed int int32; |
| |
| #else |
| # if LONG_MAX == 2147483647 |
| |
| typedef unsigned long uint32; |
| typedef signed long int32; |
| |
| # else |
| # error "Neither int nor long is a 32-bit type" |
| # endif |
| #endif |
| |
| typedef struct |
| { |
| uint32 low, high; |
| } dword; |
| typedef uint32 reg_t; |
| |
| struct simops |
| { |
| long opcode; |
| long mask; |
| void (*func)(); |
| int length; |
| int format; |
| int numops; |
| int operands[16]; |
| }; |
| |
| /* The current state of the processor; registers, memory, etc. */ |
| |
| struct _state |
| { |
| reg_t regs[32]; /* registers, d0-d3, a0-a3, sp, pc, mdr, psw, |
| lir, lar, mdrq, plus some room for processor |
| specific regs. */ |
| union |
| { |
| reg_t fs[32]; /* FS0-31 */ |
| dword fd[16]; /* FD0,2,...,30 */ |
| } fpregs; |
| uint8 *mem; /* main memory */ |
| int exception; |
| int exited; |
| |
| /* All internal state modified by signal_exception() that may need to be |
| rolled back for passing moment-of-exception image back to gdb. */ |
| reg_t exc_trigger_regs[32]; |
| reg_t exc_suspend_regs[32]; |
| int exc_suspended; |
| |
| #define SIM_CPU_EXCEPTION_TRIGGER(SD,CPU,CIA) mn10300_cpu_exception_trigger(SD,CPU,CIA) |
| #define SIM_CPU_EXCEPTION_SUSPEND(SD,CPU,EXC) mn10300_cpu_exception_suspend(SD,CPU,EXC) |
| #define SIM_CPU_EXCEPTION_RESUME(SD,CPU,EXC) mn10300_cpu_exception_resume(SD,CPU,EXC) |
| }; |
| |
| extern struct _state State; |
| extern uint32 OP[4]; |
| extern struct simops Simops[]; |
| |
| #define PC (State.regs[REG_PC]) |
| #define SP (State.regs[REG_SP]) |
| |
| #define PSW (State.regs[11]) |
| #define PSW_Z 0x1 |
| #define PSW_N 0x2 |
| #define PSW_C 0x4 |
| #define PSW_V 0x8 |
| #define PSW_IE LSBIT (11) |
| #define PSW_LM LSMASK (10, 8) |
| |
| #define EXTRACT_PSW_LM LSEXTRACTED16 (PSW, 10, 8) |
| #define INSERT_PSW_LM(l) LSINSERTED16 ((l), 10, 8) |
| |
| #define REG_D0 0 |
| #define REG_A0 4 |
| #define REG_SP 8 |
| #define REG_PC 9 |
| #define REG_MDR 10 |
| #define REG_PSW 11 |
| #define REG_LIR 12 |
| #define REG_LAR 13 |
| #define REG_MDRQ 14 |
| #define REG_E0 15 |
| #define REG_SSP 23 |
| #define REG_MSP 24 |
| #define REG_USP 25 |
| #define REG_MCRH 26 |
| #define REG_MCRL 27 |
| #define REG_MCVF 28 |
| |
| #define REG_FPCR 29 |
| |
| #define FPCR (State.regs[REG_FPCR]) |
| |
| #define FCC_MASK LSMASK (21, 18) |
| #define RM_MASK LSMASK (17, 16) /* Must always be zero. */ |
| #define EC_MASK LSMASK (14, 10) |
| #define EE_MASK LSMASK ( 9, 5) |
| #define EF_MASK LSMASK ( 4, 0) |
| #define FPCR_MASK (FCC_MASK | EC_MASK | EE_MASK | EF_MASK) |
| |
| #define FCC_L LSBIT (21) |
| #define FCC_G LSBIT (20) |
| #define FCC_E LSBIT (19) |
| #define FCC_U LSBIT (18) |
| |
| #define EC_V LSBIT (14) |
| #define EC_Z LSBIT (13) |
| #define EC_O LSBIT (12) |
| #define EC_U LSBIT (11) |
| #define EC_I LSBIT (10) |
| |
| #define EE_V LSBIT (9) |
| #define EE_Z LSBIT (8) |
| #define EE_O LSBIT (7) |
| #define EE_U LSBIT (6) |
| #define EE_I LSBIT (5) |
| |
| #define EF_V LSBIT (4) |
| #define EF_Z LSBIT (3) |
| #define EF_O LSBIT (2) |
| #define EF_U LSBIT (1) |
| #define EF_I LSBIT (0) |
| |
| #define PSW_FE LSBIT(20) |
| #define FPU_DISABLED !(PSW & PSW_FE) |
| |
| #define XS2FS(X,S) State.fpregs.fs[((X<<4)|(S))] |
| #define AS2FS(A,S) State.fpregs.fs[((A<<2)|(S))] |
| #define Xf2FD(X,f) State.fpregs.fd[((X<<3)|(f))] |
| |
| #define FS2FPU(FS,F) sim_fpu_32to (&(F), (FS)) |
| #define FD2FPU(FD,F) sim_fpu_232to (&(F), ((FD).high), ((FD).low)) |
| #define FPU2FS(F,FS) sim_fpu_to32 (&(FS), &(F)) |
| #define FPU2FD(F,FD) sim_fpu_to232 (&((FD).high), &((FD).low), &(F)) |
| |
| #ifdef _WIN32 |
| #define SIGTRAP 5 |
| #define SIGQUIT 3 |
| #endif |
| |
| #define FETCH32(a,b,c,d) \ |
| ((a)+((b)<<8)+((c)<<16)+((d)<<24)) |
| |
| #define FETCH24(a,b,c) \ |
| ((a)+((b)<<8)+((c)<<16)) |
| |
| #define FETCH16(a,b) ((a)+((b)<<8)) |
| |
| #define load_byte(ADDR) \ |
| sim_core_read_unaligned_1 (STATE_CPU (simulator, 0), PC, read_map, (ADDR)) |
| |
| #define load_half(ADDR) \ |
| sim_core_read_unaligned_2 (STATE_CPU (simulator, 0), PC, read_map, (ADDR)) |
| |
| #define load_word(ADDR) \ |
| sim_core_read_unaligned_4 (STATE_CPU (simulator, 0), PC, read_map, (ADDR)) |
| |
| #define load_dword(ADDR) \ |
| u642dw (sim_core_read_unaligned_8 (STATE_CPU (simulator, 0), \ |
| PC, read_map, (ADDR))) |
| |
| static INLINE dword |
| u642dw (unsigned64 dw) |
| { |
| dword r; |
| |
| r.low = (unsigned32)dw; |
| r.high = (unsigned32)(dw >> 32); |
| return r; |
| } |
| |
| #define store_byte(ADDR, DATA) \ |
| sim_core_write_unaligned_1 (STATE_CPU (simulator, 0), \ |
| PC, write_map, (ADDR), (DATA)) |
| |
| |
| #define store_half(ADDR, DATA) \ |
| sim_core_write_unaligned_2 (STATE_CPU (simulator, 0), \ |
| PC, write_map, (ADDR), (DATA)) |
| |
| |
| #define store_word(ADDR, DATA) \ |
| sim_core_write_unaligned_4 (STATE_CPU (simulator, 0), \ |
| PC, write_map, (ADDR), (DATA)) |
| #define store_dword(ADDR, DATA) \ |
| sim_core_write_unaligned_8 (STATE_CPU (simulator, 0), \ |
| PC, write_map, (ADDR), dw2u64 (DATA)) |
| |
| static INLINE unsigned64 |
| dw2u64 (dword data) |
| { |
| return data.low | (((unsigned64)data.high) << 32); |
| } |
| |
| /* Function declarations. */ |
| |
| uint32 get_word (uint8 *); |
| uint16 get_half (uint8 *); |
| uint8 get_byte (uint8 *); |
| void put_word (uint8 *, uint32); |
| void put_half (uint8 *, uint16); |
| void put_byte (uint8 *, uint8); |
| |
| extern uint8 *map (SIM_ADDR addr); |
| |
| INLINE_SIM_MAIN (void) genericAdd (unsigned32 source, unsigned32 destReg); |
| INLINE_SIM_MAIN (void) genericSub (unsigned32 source, unsigned32 destReg); |
| INLINE_SIM_MAIN (void) genericCmp (unsigned32 leftOpnd, unsigned32 rightOpnd); |
| INLINE_SIM_MAIN (void) genericOr (unsigned32 source, unsigned32 destReg); |
| INLINE_SIM_MAIN (void) genericXor (unsigned32 source, unsigned32 destReg); |
| INLINE_SIM_MAIN (void) genericBtst (unsigned32 leftOpnd, unsigned32 rightOpnd); |
| INLINE_SIM_MAIN (int) syscall_read_mem (host_callback *cb, |
| struct cb_syscall *sc, |
| unsigned long taddr, |
| char *buf, |
| int bytes); |
| INLINE_SIM_MAIN (int) syscall_write_mem (host_callback *cb, |
| struct cb_syscall *sc, |
| unsigned long taddr, |
| const char *buf, |
| int bytes); |
| INLINE_SIM_MAIN (void) do_syscall (void); |
| void program_interrupt (SIM_DESC sd, sim_cpu *cpu, sim_cia cia, SIM_SIGNAL sig); |
| |
| void mn10300_cpu_exception_trigger(SIM_DESC sd, sim_cpu* cpu, address_word pc); |
| void mn10300_cpu_exception_suspend(SIM_DESC sd, sim_cpu* cpu, int exception); |
| void mn10300_cpu_exception_resume(SIM_DESC sd, sim_cpu* cpu, int exception); |
| |
| void fpu_disabled_exception (SIM_DESC, sim_cpu *, address_word); |
| void fpu_unimp_exception (SIM_DESC, sim_cpu *, address_word); |
| void fpu_check_signal_exception (SIM_DESC, sim_cpu *, address_word); |
| |
| extern const struct fp_prec_t |
| { |
| void (* reg2val) (const void *, sim_fpu *); |
| int (* round) (sim_fpu *); |
| void (* val2reg) (const sim_fpu *, void *); |
| } fp_single_prec, fp_double_prec; |
| |
| #define FP_SINGLE (&fp_single_prec) |
| #define FP_DOUBLE (&fp_double_prec) |
| |
| void fpu_rsqrt (SIM_DESC, sim_cpu *, address_word, const void *, void *, const struct fp_prec_t *); |
| void fpu_sqrt (SIM_DESC, sim_cpu *, address_word, const void *, void *, const struct fp_prec_t *); |
| void fpu_cmp (SIM_DESC, sim_cpu *, address_word, const void *, const void *, const struct fp_prec_t *); |
| void fpu_add (SIM_DESC, sim_cpu *, address_word, const void *, const void *, void *, const struct fp_prec_t *); |
| void fpu_sub (SIM_DESC, sim_cpu *, address_word, const void *, const void *, void *, const struct fp_prec_t *); |
| void fpu_mul (SIM_DESC, sim_cpu *, address_word, const void *, const void *, void *, const struct fp_prec_t *); |
| void fpu_div (SIM_DESC, sim_cpu *, address_word, const void *, const void *, void *, const struct fp_prec_t *); |
| void fpu_fmadd (SIM_DESC, sim_cpu *, address_word, const void *, const void *, const void *, void *, const struct fp_prec_t *); |
| void fpu_fmsub (SIM_DESC, sim_cpu *, address_word, const void *, const void *, const void *, void *, const struct fp_prec_t *); |
| void fpu_fnmadd (SIM_DESC, sim_cpu *, address_word, const void *, const void *, const void *, void *, const struct fp_prec_t *); |
| void fpu_fnmsub (SIM_DESC, sim_cpu *, address_word, const void *, const void *, const void *, void *, const struct fp_prec_t *); |
