diff options
Diffstat (limited to 'sim/microblaze')
| -rw-r--r-- | sim/microblaze/ChangeLog | 20 | ||||
| -rw-r--r-- | sim/microblaze/interp.c | 329 | ||||
| -rw-r--r-- | sim/microblaze/microblaze.h | 14 | ||||
| -rw-r--r-- | sim/microblaze/sim-main.h | 2 |
4 files changed, 33 insertions, 332 deletions
diff --git a/sim/microblaze/ChangeLog b/sim/microblaze/ChangeLog index 8ac3a26..7bfb657 100644 --- a/sim/microblaze/ChangeLog +++ b/sim/microblaze/ChangeLog @@ -1,5 +1,25 @@ 2015-04-17 Mike Frysinger <vapier@gentoo.org> + * interp.c (issue_messages, wbat, wlat, what, rbat, rlat, rhat, + sim_memory_size, MEM_SIZE_FLOOR, sim_size, init_pointers, sim_write, + sim_read, sim_do_command): Delete. + (set_initial_gprs): Delete memsize and call to init_pointers. + (sim_resume): Change rlat to MEM_RD_WORD. Change issue_messages to + STATE_VERBOSE_P. + (sim_store_register, sim_fetch_register): Drop call to init_pointers. + (sim_open): Drop issue_messages setup. Delete osize and call to + sim_size. Call sim_do_commandf to set the memory size. + * microblaze.h (MEM): Delete. + (MEM_RD_BYTE): Change rbat to sim_core_read_1. + (MEM_RD_HALF): Change rhat to sim_core_read_2. + (MEM_RD_WORD): Change rlat to sim_core_read_4. + (MEM_WR_BYTE): Change wbat to sim_core_write_1. + (MEM_WR_HALF): Change what to sim_core_write_2. + (MEM_WR_WORD): Change wlat to sim_core_write_4. + * sim-main.h (microblaze_regset): Delete msize and memory. + +2015-04-17 Mike Frysinger <vapier@gentoo.org> + * sim-main.h (CIA_GET, CIA_SET): Delete. 2015-04-17 Mike Frysinger <vapier@gentoo.org> diff --git a/sim/microblaze/interp.c b/sim/microblaze/interp.c index aa8634e..e05c107 100644 --- a/sim/microblaze/interp.c +++ b/sim/microblaze/interp.c @@ -89,240 +89,16 @@ microblaze_store_unsigned_integer (unsigned char *addr, int len, } } -/* TODO: Convert to common tracing framework. */ -static int issue_messages = 0; - -static void /* INLINE */ -wbat (SIM_CPU *cpu, word x, word v) -{ - if (((uword)x) >= CPU.msize) - { - if (issue_messages) - fprintf (stderr, "byte write to 0x%x outside memory range\n", x); - - CPU.exception = SIGSEGV; - } - else - { - unsigned char *p = CPU.memory + x; - p[0] = v; - } -} - -static void /* INLINE */ -wlat (SIM_CPU *cpu, word x, word v) -{ - if (((uword)x) >= CPU.msize) - { - if (issue_messages) - fprintf (stderr, "word write to 0x%x outside memory range\n", x); - - CPU.exception = SIGSEGV; - } - else - { - if ((x & 3) != 0) - { - if (issue_messages) - fprintf (stderr, "word write to unaligned memory address: 0x%x\n", x); - - CPU.exception = SIGBUS; - } - else if (!target_big_endian) - { - unsigned char *p = CPU.memory + x; - p[3] = v >> 24; - p[2] = v >> 16; - p[1] = v >> 8; - p[0] = v; - } - else - { - unsigned char *p = CPU.memory + x; - p[0] = v >> 24; - p[1] = v >> 16; - p[2] = v >> 8; - p[3] = v; - } - } -} - -static void /* INLINE */ -what (SIM_CPU *cpu, word x, word v) -{ - if (((uword)x) >= CPU.msize) - { - if (issue_messages) - fprintf (stderr, "short write to 0x%x outside memory range\n", x); - - CPU.exception = SIGSEGV; - } - else - { - if ((x & 1) != 0) - { - if (issue_messages) - fprintf (stderr, "short write to unaligned memory address: 0x%x\n", - x); - - CPU.exception = SIGBUS; - } - else if (!target_big_endian) - { - unsigned char *p = CPU.memory + x; - p[1] = v >> 8; - p[0] = v; - } - else - { - unsigned char *p = CPU.memory + x; - p[0] = v >> 8; - p[1] = v; - } - } -} - -/* Read functions. */ -static int /* INLINE */ -rbat (SIM_CPU *cpu, word x) -{ - if (((uword)x) >= CPU.msize) - { - if (issue_messages) - fprintf (stderr, "byte read from 0x%x outside memory range\n", x); - - CPU.exception = SIGSEGV; - return 0; - } - else - { - unsigned char *p = CPU.memory + x; - return p[0]; - } -} - -static int /* INLINE */ -rlat (SIM_CPU *cpu, word x) -{ - if (((uword) x) >= CPU.msize) - { - if (issue_messages) - fprintf (stderr, "word read from 0x%x outside memory range\n", x); - - CPU.exception = SIGSEGV; - return 0; - } - else - { - if ((x & 3) != 0) - { - if (issue_messages) - fprintf (stderr, "word read from unaligned address: 0x%x\n", x); - - CPU.exception = SIGBUS; - return 0; - } - else if (! target_big_endian) - { - unsigned char *p = CPU.memory + x; - return (p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]; - } - else - { - unsigned char *p = CPU.memory + x; - return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]; - } - } -} - -static int /* INLINE */ -rhat (SIM_CPU *cpu, word x) -{ - if (((uword)x) >= CPU.msize) - { - if (issue_messages) - fprintf (stderr, "short read from 0x%x outside memory range\n", x); - - CPU.exception = SIGSEGV; - return 0; - } - else - { - if ((x & 1) != 0) - { - if (issue_messages) - fprintf (stderr, "short read from unaligned address: 0x%x\n", x); - - CPU.exception = SIGBUS; - return 0; - } - else if (!target_big_endian) - { - unsigned char *p = CPU.memory + x; - return (p[1] << 8) | p[0]; - } - else - { - unsigned char *p = CPU.memory + x; - return (p[0] << 8) | p[1]; - } - } -} - -/* TODO: Delete all sim_size and use common memory functions. */ -/* Default to a 8 Mbyte (== 2^23) memory space. */ -static int sim_memory_size = 1 << 23; - -#define MEM_SIZE_FLOOR 64 -static void -sim_size (SIM_CPU *cpu, int size) -{ - sim_memory_size = size; - CPU.msize = sim_memory_size; - - if (CPU.memory) - free (CPU.memory); - - CPU.memory = (unsigned char *) calloc (1, CPU.msize); - - if (!CPU.memory) - { - if (issue_messages) - fprintf (stderr, - "Not enough VM for simulation of %ld bytes of RAM\n", - CPU.msize); - - CPU.msize = 1; - CPU.memory = (unsigned char *) calloc (1, 1); - } -} - -static void -init_pointers (SIM_CPU *cpu) -{ - if (CPU.msize != (sim_memory_size)) - sim_size (cpu, sim_memory_size); -} - static void set_initial_gprs (SIM_CPU *cpu) { int i; long space; - unsigned long memsize; - - init_pointers (cpu); /* Set up machine just out of reset. */ PC = 0; MSR = 0; - memsize = CPU.msize / (1024 * 1024); - - if (issue_messages > 1) - fprintf (stderr, "Simulated memory of %ld Mbytes (0x0 .. 0x%08lx)\n", - memsize, CPU.msize - 1); - /* Clean out the GPRs */ for (i = 0; i < 32; i++) CPU.regs[i] = 0; @@ -365,7 +141,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal) do { /* Fetch the initial instructions that we'll decode. */ - inst = rlat (cpu, PC & 0xFFFFFFFC); + inst = MEM_RD_WORD (PC & 0xFFFFFFFC); op = get_insn_microblaze (inst, &imm_unsigned, &insn_type, &num_delay_slot); @@ -439,7 +215,7 @@ sim_resume (SIM_DESC sd, int step, int siggnal) { newpc = PC; PC = oldpc + INST_SIZE; - inst = rlat (cpu, PC & 0xFFFFFFFC); + inst = MEM_RD_WORD (PC & 0xFFFFFFFC); op = get_insn_microblaze (inst, &imm_unsigned, &insn_type, &num_delay_slot); if (op == invalid_inst) @@ -452,14 +228,14 @@ sim_resume (SIM_DESC sd, int step, int siggnal) /* immword = IMM_W; */ if (op == microblaze_brk) { - if (issue_messages) + if (STATE_VERBOSE_P (sd)) fprintf (stderr, "Breakpoint set in delay slot " "(at address 0x%x) will not be honored\n", PC); /* ignore the breakpoint */ } else if (insn_type == branch_inst || insn_type == return_inst) { - if (issue_messages) + if (STATE_VERBOSE_P (sd)) fprintf (stderr, "Cannot have branch or return instructions " "in delay slot (at address 0x%x)\n", PC); CPU.exception = SIGILL; @@ -522,41 +298,11 @@ sim_resume (SIM_DESC sd, int step, int siggnal) CPU.cycles += memops; /* and memop cycle delays */ } - -int -sim_write (SIM_DESC sd, SIM_ADDR addr, const unsigned char *buffer, int size) -{ - SIM_CPU *cpu = STATE_CPU (sd, 0); - int i; - - init_pointers (cpu); - - memcpy (&CPU.memory[addr], buffer, size); - - return size; -} - -int -sim_read (SIM_DESC sd, SIM_ADDR addr, unsigned char *buffer, int size) -{ - SIM_CPU *cpu = STATE_CPU (sd, 0); - int i; - - init_pointers (cpu); - - memcpy (buffer, &CPU.memory[addr], size); - - return size; -} - - int sim_store_register (SIM_DESC sd, int rn, unsigned char *memory, int length) { SIM_CPU *cpu = STATE_CPU (sd, 0); - init_pointers (cpu); - if (rn < NUM_REGS + NUM_SPECIAL && rn >= 0) { if (length == 4) @@ -582,8 +328,6 @@ sim_fetch_register (SIM_DESC sd, int rn, unsigned char *memory, int length) SIM_CPU *cpu = STATE_CPU (sd, 0); long ival; - init_pointers (cpu); - if (rn < NUM_REGS + NUM_SPECIAL && rn >= 0) { if (length == 4) @@ -709,25 +453,20 @@ sim_open (SIM_OPEN_KIND kind, host_callback *cb, struct bfd *abfd, char **argv) return 0; } - if (kind == SIM_OPEN_STANDALONE) - issue_messages = 1; - /* CPU specific initialization. */ for (i = 0; i < MAX_NR_PROCESSORS; ++i) { SIM_CPU *cpu = STATE_CPU (sd, i); - int osize = sim_memory_size; CPU_PC_FETCH (cpu) = microblaze_pc_get; CPU_PC_STORE (cpu) = microblaze_pc_set; set_initial_gprs (cpu); - - /* Discard and reacquire memory -- start with a clean slate. */ - sim_size (cpu, 1); /* small */ - sim_size (cpu, osize); /* and back again */ } + /* Default to a 8 Mbyte (== 2^23) memory space. */ + sim_do_commandf (sd, "memory-size 0x800000"); + return sd; } @@ -746,57 +485,3 @@ sim_create_inferior (SIM_DESC sd, struct bfd *prog_bfd, char **argv, char **env) return SIM_RC_OK; } - -void -sim_do_command (SIM_DESC sd, const char *cmd) -{ - SIM_CPU *cpu = STATE_CPU (sd, 0); - - /* Nothing there yet; it's all an error. */ - - if (cmd != NULL) - { - char ** simargv = buildargv (cmd); - - if (strcmp (simargv[0], "dumpmem") == 0) - { - unsigned char * p; - FILE * dumpfile; - - if (simargv[1] == NULL) - fprintf (stderr, "Error: missing argument to dumpmem cmd.\n"); - - fprintf (stderr, "Writing dumpfile %s...",simargv[1]); - - dumpfile = fopen (simargv[1], "w"); - p = CPU.memory; - fwrite (p, CPU.msize-1, 1, dumpfile); - fclose (dumpfile); - - fprintf (stderr, "done.\n"); - } - else if (strcmp (simargv[0], "clearstats") == 0) - { - CPU.cycles = 0; - CPU.insts = 0; - } - else if (strcmp (simargv[0], "verbose") == 0) - { - issue_messages = 2; - } - else - { - fprintf (stderr,"Error: \"%s\" is not a valid M.CORE simulator command.\n", - cmd); - } - - freeargv (simargv); - } - else - { - fprintf (stderr, "M.CORE sim commands: \n"); - fprintf (stderr, " dumpmem <filename>\n"); - fprintf (stderr, " clearstats\n"); - fprintf (stderr, " verbose\n"); - } -} diff --git a/sim/microblaze/microblaze.h b/sim/microblaze/microblaze.h index e08f5a0..6b10d56 100644 --- a/sim/microblaze/microblaze.h +++ b/sim/microblaze/microblaze.h @@ -52,18 +52,16 @@ #define RETREG CPU.regs[3] -#define MEM(X) memory[X] - -#define MEM_RD_BYTE(X) rbat(cpu, X) -#define MEM_RD_HALF(X) rhat(cpu, X) -#define MEM_RD_WORD(X) rlat(cpu, X) +#define MEM_RD_BYTE(X) sim_core_read_1 (cpu, 0, read_map, X) +#define MEM_RD_HALF(X) sim_core_read_2 (cpu, 0, read_map, X) +#define MEM_RD_WORD(X) sim_core_read_4 (cpu, 0, read_map, X) #define MEM_RD_UBYTE(X) (ubyte) MEM_RD_BYTE(X) #define MEM_RD_UHALF(X) (uhalf) MEM_RD_HALF(X) #define MEM_RD_UWORD(X) (uword) MEM_RD_WORD(X) -#define MEM_WR_BYTE(X, D) wbat(cpu, X, D) -#define MEM_WR_HALF(X, D) what(cpu, X, D) -#define MEM_WR_WORD(X, D) wlat(cpu, X, D) +#define MEM_WR_BYTE(X, D) sim_core_write_1 (cpu, 0, write_map, X, D) +#define MEM_WR_HALF(X, D) sim_core_write_2 (cpu, 0, write_map, X, D) +#define MEM_WR_WORD(X, D) sim_core_write_4 (cpu, 0, write_map, X, D) #define MICROBLAZE_SEXT8(X) ((char) X) diff --git a/sim/microblaze/sim-main.h b/sim/microblaze/sim-main.h index 1b34f3a..e5d2b15 100644 --- a/sim/microblaze/sim-main.h +++ b/sim/microblaze/sim-main.h @@ -45,8 +45,6 @@ typedef struct _sim_cpu SIM_CPU; int cycles; int insts; int exception; - unsigned long msize; - unsigned char *memory; ubyte imm_enable; half imm_high; }; |