diff options
author | Mike Frysinger <vapier@gentoo.org> | 2016-08-13 00:07:45 +0800 |
---|---|---|
committer | Mike Frysinger <vapier@gentoo.org> | 2022-11-11 01:44:20 +0700 |
commit | 86da59040d1827b184808af932007d827e8cbb55 (patch) | |
tree | 096ad5054d5b6a6a8d2666ee33c74154ce5ad82a | |
parent | d936c5d245a7a1ef5718f0f7da07faf75583a39b (diff) | |
download | gdb-86da59040d1827b184808af932007d827e8cbb55.zip gdb-86da59040d1827b184808af932007d827e8cbb55.tar.gz gdb-86da59040d1827b184808af932007d827e8cbb55.tar.bz2 |
sim: ft32: invert sim_cpu storage
-rw-r--r-- | sim/ft32/ft32-sim.h | 2 | ||||
-rw-r--r-- | sim/ft32/interp.c | 181 | ||||
-rw-r--r-- | sim/ft32/sim-main.h | 11 |
3 files changed, 99 insertions, 95 deletions
diff --git a/sim/ft32/ft32-sim.h b/sim/ft32/ft32-sim.h index 255aa48..21552a2 100644 --- a/sim/ft32/ft32-sim.h +++ b/sim/ft32/ft32-sim.h @@ -40,4 +40,6 @@ struct ft32_cpu_state { int exception; }; +#define FT32_SIM_CPU(cpu) ((struct ft32_cpu_state *) CPU_ARCH_DATA (cpu)) + #endif /* _FT32_SIM_H_ */ diff --git a/sim/ft32/interp.c b/sim/ft32/interp.c index 5625856..9324475 100644 --- a/sim/ft32/interp.c +++ b/sim/ft32/interp.c @@ -162,7 +162,8 @@ ft32_write_item (SIM_DESC sd, int dw, uint32_t ea, uint32_t v) static uint32_t cpu_mem_read (SIM_DESC sd, uint32_t dw, uint32_t ea) { sim_cpu *cpu = STATE_CPU (sd, 0); - uint32_t insnpc = cpu->state.pc; + struct ft32_cpu_state *ft32_cpu = FT32_SIM_CPU (cpu); + uint32_t insnpc = ft32_cpu->pc; uint32_t r; uint8_t byte[4]; @@ -176,7 +177,7 @@ static uint32_t cpu_mem_read (SIM_DESC sd, uint32_t dw, uint32_t ea) return getchar (); case 0x1fff4: /* Read the simulator cycle timer. */ - return cpu->state.cycles / 100; + return ft32_cpu->cycles / 100; default: sim_io_eprintf (sd, "Illegal IO read address %08x, pc %#x\n", ea, insnpc); @@ -189,6 +190,7 @@ static uint32_t cpu_mem_read (SIM_DESC sd, uint32_t dw, uint32_t ea) static void cpu_mem_write (SIM_DESC sd, uint32_t dw, uint32_t ea, uint32_t d) { sim_cpu *cpu = STATE_CPU (sd, 0); + struct ft32_cpu_state *ft32_cpu = FT32_SIM_CPU (cpu); ea &= 0x1ffff; if (ea & 0x10000) { @@ -201,23 +203,23 @@ static void cpu_mem_write (SIM_DESC sd, uint32_t dw, uint32_t ea, uint32_t d) break; case 0x1fc80: /* Unlock the PM write port */ - cpu->state.pm_unlock = (d == 0x1337f7d1); + ft32_cpu->pm_unlock = (d == 0x1337f7d1); break; case 0x1fc84: /* Set the PM write address register */ - cpu->state.pm_addr = d; + ft32_cpu->pm_addr = d; break; case 0x1fc88: - if (cpu->state.pm_unlock) + if (ft32_cpu->pm_unlock) { /* Write to PM. */ - ft32_write_item (sd, dw, cpu->state.pm_addr, d); - cpu->state.pm_addr += 4; + ft32_write_item (sd, dw, ft32_cpu->pm_addr, d); + ft32_cpu->pm_addr += 4; } break; case 0x1fffc: /* Normal exit. */ - sim_engine_halt (sd, cpu, NULL, cpu->state.pc, sim_exited, cpu->state.regs[0]); + sim_engine_halt (sd, cpu, NULL, ft32_cpu->pc, sim_exited, ft32_cpu->regs[0]); break; case 0x1fff8: sim_io_printf (sd, "Debug write %08x\n", d); @@ -239,17 +241,19 @@ static void cpu_mem_write (SIM_DESC sd, uint32_t dw, uint32_t ea, uint32_t d) static void ft32_push (SIM_DESC sd, uint32_t v) { sim_cpu *cpu = STATE_CPU (sd, 0); - cpu->state.regs[FT32_HARD_SP] -= 4; - cpu->state.regs[FT32_HARD_SP] &= 0xffff; - cpu_mem_write (sd, 2, cpu->state.regs[FT32_HARD_SP], v); + struct ft32_cpu_state *ft32_cpu = FT32_SIM_CPU (cpu); + ft32_cpu->regs[FT32_HARD_SP] -= 4; + ft32_cpu->regs[FT32_HARD_SP] &= 0xffff; + cpu_mem_write (sd, 2, ft32_cpu->regs[FT32_HARD_SP], v); } static uint32_t ft32_pop (SIM_DESC sd) { sim_cpu *cpu = STATE_CPU (sd, 0); - uint32_t r = cpu_mem_read (sd, 2, cpu->state.regs[FT32_HARD_SP]); - cpu->state.regs[FT32_HARD_SP] += 4; - cpu->state.regs[FT32_HARD_SP] &= 0xffff; + struct ft32_cpu_state *ft32_cpu = FT32_SIM_CPU (cpu); + uint32_t r = cpu_mem_read (sd, 2, ft32_cpu->regs[FT32_HARD_SP]); + ft32_cpu->regs[FT32_HARD_SP] += 4; + ft32_cpu->regs[FT32_HARD_SP] &= 0xffff; return r; } @@ -320,6 +324,7 @@ static void step_once (SIM_DESC sd) { sim_cpu *cpu = STATE_CPU (sd, 0); + struct ft32_cpu_state *ft32_cpu = FT32_SIM_CPU (cpu); address_word cia = CPU_PC_GET (cpu); uint32_t inst; uint32_t dw; @@ -346,13 +351,13 @@ step_once (SIM_DESC sd) unsigned int sc[2]; int isize; - inst = ft32_read_item (sd, 2, cpu->state.pc); - cpu->state.cycles += 1; + inst = ft32_read_item (sd, 2, ft32_cpu->pc); + ft32_cpu->cycles += 1; if ((STATE_ARCHITECTURE (sd)->mach == bfd_mach_ft32b) - && ft32_decode_shortcode (cpu->state.pc, inst, sc)) + && ft32_decode_shortcode (ft32_cpu->pc, inst, sc)) { - if ((cpu->state.pc & 3) == 0) + if ((ft32_cpu->pc & 3) == 0) inst = sc[0]; else inst = sc[1]; @@ -365,7 +370,7 @@ step_once (SIM_DESC sd) if (inst == 0x00340002) { sim_engine_halt (sd, cpu, NULL, - cpu->state.pc, + ft32_cpu->pc, sim_stopped, SIM_SIGTRAP); goto escape; } @@ -390,8 +395,8 @@ step_once (SIM_DESC sd) k15 -= 0x8000; al = (inst >> FT32_FLD_AL_BIT) & LSBS (FT32_FLD_AL_SIZ); - r_1v = cpu->state.regs[r_1]; - rimmv = (rimm & 0x400) ? nsigned (10, rimm) : cpu->state.regs[rimm & 0x1f]; + r_1v = ft32_cpu->regs[r_1]; + rimmv = (rimm & 0x400) ? nsigned (10, rimm) : ft32_cpu->regs[rimm & 0x1f]; bit_pos = rimmv & 31; bit_len = 0xf & (rimmv >> 5); @@ -400,24 +405,24 @@ step_once (SIM_DESC sd) upper = (inst >> 27); - insnpc = cpu->state.pc; - cpu->state.pc += isize; + insnpc = ft32_cpu->pc; + ft32_cpu->pc += isize; switch (upper) { case FT32_PAT_TOC: case FT32_PAT_TOCI: { - int take = (cr == 3) || ((1 & (cpu->state.regs[28 + cr] >> cb)) == cv); + int take = (cr == 3) || ((1 & (ft32_cpu->regs[28 + cr] >> cb)) == cv); if (take) { - cpu->state.cycles += 1; + ft32_cpu->cycles += 1; if (bt) - ft32_push (sd, cpu->state.pc); /* this is a call. */ + ft32_push (sd, ft32_cpu->pc); /* this is a call. */ if (upper == FT32_PAT_TOC) - cpu->state.pc = pa << 2; + ft32_cpu->pc = pa << 2; else - cpu->state.pc = cpu->state.regs[r_2]; - if (cpu->state.pc == 0x8) + ft32_cpu->pc = ft32_cpu->regs[r_2]; + if (ft32_cpu->pc == 0x8) goto escape; } } @@ -449,7 +454,7 @@ step_once (SIM_DESC sd) ILLEGAL (); } if (upper == FT32_PAT_ALUOP) - cpu->state.regs[r_d] = result; + ft32_cpu->regs[r_d] = result; else { uint32_t dwmask = 0; @@ -492,7 +497,7 @@ step_once (SIM_DESC sd) greater = (sign == overflow) & !zero; greatereq = (sign == overflow); - cpu->state.regs[r_d] = ( + ft32_cpu->regs[r_d] = ( (above << 6) | (greater << 5) | (greatereq << 4) | @@ -505,54 +510,54 @@ step_once (SIM_DESC sd) break; case FT32_PAT_LDK: - cpu->state.regs[r_d] = k20; + ft32_cpu->regs[r_d] = k20; break; case FT32_PAT_LPM: - cpu->state.regs[r_d] = ft32_read_item (sd, dw, pa << 2); - cpu->state.cycles += 1; + ft32_cpu->regs[r_d] = ft32_read_item (sd, dw, pa << 2); + ft32_cpu->cycles += 1; break; case FT32_PAT_LPMI: - cpu->state.regs[r_d] = ft32_read_item (sd, dw, cpu->state.regs[r_1] + k15); - cpu->state.cycles += 1; + ft32_cpu->regs[r_d] = ft32_read_item (sd, dw, ft32_cpu->regs[r_1] + k15); + ft32_cpu->cycles += 1; break; case FT32_PAT_STA: - cpu_mem_write (sd, dw, aa, cpu->state.regs[r_d]); + cpu_mem_write (sd, dw, aa, ft32_cpu->regs[r_d]); break; case FT32_PAT_STI: - cpu_mem_write (sd, dw, cpu->state.regs[r_d] + k15, cpu->state.regs[r_1]); + cpu_mem_write (sd, dw, ft32_cpu->regs[r_d] + k15, ft32_cpu->regs[r_1]); break; case FT32_PAT_LDA: - cpu->state.regs[r_d] = cpu_mem_read (sd, dw, aa); - cpu->state.cycles += 1; + ft32_cpu->regs[r_d] = cpu_mem_read (sd, dw, aa); + ft32_cpu->cycles += 1; break; case FT32_PAT_LDI: - cpu->state.regs[r_d] = cpu_mem_read (sd, dw, cpu->state.regs[r_1] + k15); - cpu->state.cycles += 1; + ft32_cpu->regs[r_d] = cpu_mem_read (sd, dw, ft32_cpu->regs[r_1] + k15); + ft32_cpu->cycles += 1; break; case FT32_PAT_EXA: { uint32_t tmp; tmp = cpu_mem_read (sd, dw, aa); - cpu_mem_write (sd, dw, aa, cpu->state.regs[r_d]); - cpu->state.regs[r_d] = tmp; - cpu->state.cycles += 1; + cpu_mem_write (sd, dw, aa, ft32_cpu->regs[r_d]); + ft32_cpu->regs[r_d] = tmp; + ft32_cpu->cycles += 1; } break; case FT32_PAT_EXI: { uint32_t tmp; - tmp = cpu_mem_read (sd, dw, cpu->state.regs[r_1] + k15); - cpu_mem_write (sd, dw, cpu->state.regs[r_1] + k15, cpu->state.regs[r_d]); - cpu->state.regs[r_d] = tmp; - cpu->state.cycles += 1; + tmp = cpu_mem_read (sd, dw, ft32_cpu->regs[r_1] + k15); + cpu_mem_write (sd, dw, ft32_cpu->regs[r_1] + k15, ft32_cpu->regs[r_d]); + ft32_cpu->regs[r_d] = tmp; + ft32_cpu->cycles += 1; } break; @@ -561,41 +566,41 @@ step_once (SIM_DESC sd) break; case FT32_PAT_LINK: - ft32_push (sd, cpu->state.regs[r_d]); - cpu->state.regs[r_d] = cpu->state.regs[FT32_HARD_SP]; - cpu->state.regs[FT32_HARD_SP] -= k16; - cpu->state.regs[FT32_HARD_SP] &= 0xffff; + ft32_push (sd, ft32_cpu->regs[r_d]); + ft32_cpu->regs[r_d] = ft32_cpu->regs[FT32_HARD_SP]; + ft32_cpu->regs[FT32_HARD_SP] -= k16; + ft32_cpu->regs[FT32_HARD_SP] &= 0xffff; break; case FT32_PAT_UNLINK: - cpu->state.regs[FT32_HARD_SP] = cpu->state.regs[r_d]; - cpu->state.regs[FT32_HARD_SP] &= 0xffff; - cpu->state.regs[r_d] = ft32_pop (sd); + ft32_cpu->regs[FT32_HARD_SP] = ft32_cpu->regs[r_d]; + ft32_cpu->regs[FT32_HARD_SP] &= 0xffff; + ft32_cpu->regs[r_d] = ft32_pop (sd); break; case FT32_PAT_POP: - cpu->state.cycles += 1; - cpu->state.regs[r_d] = ft32_pop (sd); + ft32_cpu->cycles += 1; + ft32_cpu->regs[r_d] = ft32_pop (sd); break; case FT32_PAT_RETURN: - cpu->state.pc = ft32_pop (sd); + ft32_cpu->pc = ft32_pop (sd); break; case FT32_PAT_FFUOP: switch (al) { case 0x0: - cpu->state.regs[r_d] = r_1v / rimmv; + ft32_cpu->regs[r_d] = r_1v / rimmv; break; case 0x1: - cpu->state.regs[r_d] = r_1v % rimmv; + ft32_cpu->regs[r_d] = r_1v % rimmv; break; case 0x2: - cpu->state.regs[r_d] = ft32sdiv (r_1v, rimmv); + ft32_cpu->regs[r_d] = ft32sdiv (r_1v, rimmv); break; case 0x3: - cpu->state.regs[r_d] = ft32smod (r_1v, rimmv); + ft32_cpu->regs[r_d] = ft32smod (r_1v, rimmv); break; case 0x4: @@ -607,7 +612,7 @@ step_once (SIM_DESC sd) while ((GET_BYTE (a + i) != 0) && (GET_BYTE (a + i) == GET_BYTE (b + i))) i++; - cpu->state.regs[r_d] = GET_BYTE (a + i) - GET_BYTE (b + i); + ft32_cpu->regs[r_d] = GET_BYTE (a + i) - GET_BYTE (b + i); } break; @@ -615,7 +620,7 @@ step_once (SIM_DESC sd) { /* memcpy instruction. */ uint32_t src = r_1v; - uint32_t dst = cpu->state.regs[r_d]; + uint32_t dst = ft32_cpu->regs[r_d]; uint32_t i; for (i = 0; i < (rimmv & 0x7fff); i++) PUT_BYTE (dst + i, GET_BYTE (src + i)); @@ -628,46 +633,46 @@ step_once (SIM_DESC sd) uint32_t i; for (i = 0; GET_BYTE (src + i) != 0; i++) ; - cpu->state.regs[r_d] = i; + ft32_cpu->regs[r_d] = i; } break; case 0x7: { /* memset instruction. */ - uint32_t dst = cpu->state.regs[r_d]; + uint32_t dst = ft32_cpu->regs[r_d]; uint32_t i; for (i = 0; i < (rimmv & 0x7fff); i++) PUT_BYTE (dst + i, r_1v); } break; case 0x8: - cpu->state.regs[r_d] = r_1v * rimmv; + ft32_cpu->regs[r_d] = r_1v * rimmv; break; case 0x9: - cpu->state.regs[r_d] = ((uint64_t)r_1v * (uint64_t)rimmv) >> 32; + ft32_cpu->regs[r_d] = ((uint64_t)r_1v * (uint64_t)rimmv) >> 32; break; case 0xa: { /* stpcpy instruction. */ uint32_t src = r_1v; - uint32_t dst = cpu->state.regs[r_d]; + uint32_t dst = ft32_cpu->regs[r_d]; uint32_t i; for (i = 0; GET_BYTE (src + i) != 0; i++) PUT_BYTE (dst + i, GET_BYTE (src + i)); PUT_BYTE (dst + i, 0); - cpu->state.regs[r_d] = dst + i; + ft32_cpu->regs[r_d] = dst + i; } break; case 0xe: { /* streamout instruction. */ uint32_t i; - uint32_t src = cpu->state.regs[r_1]; + uint32_t src = ft32_cpu->regs[r_1]; for (i = 0; i < rimmv; i += (1 << dw)) { cpu_mem_write (sd, dw, - cpu->state.regs[r_d], + ft32_cpu->regs[r_d], cpu_mem_read (sd, dw, src)); src += (1 << dw); } @@ -683,7 +688,7 @@ step_once (SIM_DESC sd) sim_io_eprintf (sd, "Unhandled pattern %d at %08x\n", upper, insnpc); ILLEGAL (); } - cpu->state.num_i++; + ft32_cpu->num_i++; escape: ; @@ -721,6 +726,8 @@ ft32_lookup_register (SIM_CPU *cpu, int nr) * 31 - cc */ + struct ft32_cpu_state *ft32_cpu = FT32_SIM_CPU (cpu); + if ((nr < 0) || (nr > 32)) { sim_io_eprintf (CPU_STATE (cpu), "unknown register %i\n", nr); @@ -730,15 +737,15 @@ ft32_lookup_register (SIM_CPU *cpu, int nr) switch (nr) { case FT32_FP_REGNUM: - return &cpu->state.regs[FT32_HARD_FP]; + return &ft32_cpu->regs[FT32_HARD_FP]; case FT32_SP_REGNUM: - return &cpu->state.regs[FT32_HARD_SP]; + return &ft32_cpu->regs[FT32_HARD_SP]; case FT32_CC_REGNUM: - return &cpu->state.regs[FT32_HARD_CC]; + return &ft32_cpu->regs[FT32_HARD_CC]; case FT32_PC_REGNUM: - return &cpu->state.pc; + return &ft32_cpu->pc; default: - return &cpu->state.regs[nr - 2]; + return &ft32_cpu->regs[nr - 2]; } } @@ -779,13 +786,13 @@ ft32_reg_fetch (SIM_CPU *cpu, static sim_cia ft32_pc_get (SIM_CPU *cpu) { - return cpu->state.pc; + return FT32_SIM_CPU (cpu)->pc; } static void ft32_pc_set (SIM_CPU *cpu, sim_cia newpc) { - cpu->state.pc = newpc; + FT32_SIM_CPU (cpu)->pc = newpc; } /* Cover function of sim_state_free to free the cpu buffers as well. */ @@ -814,7 +821,8 @@ sim_open (SIM_OPEN_KIND kind, current_target_byte_order = BFD_ENDIAN_LITTLE; /* The cpu data is kept in a separately allocated chunk of memory. */ - if (sim_cpu_alloc_all (sd, 1) != SIM_RC_OK) + if (sim_cpu_alloc_all_extra (sd, 1, sizeof (struct ft32_cpu_state)) + != SIM_RC_OK) { free_state (sd); return 0; @@ -884,6 +892,7 @@ sim_create_inferior (SIM_DESC sd, { uint32_t addr; sim_cpu *cpu = STATE_CPU (sd, 0); + struct ft32_cpu_state *ft32_cpu = FT32_SIM_CPU (cpu); host_callback *cb = STATE_CALLBACK (sd); /* Set the PC. */ @@ -911,10 +920,10 @@ sim_create_inferior (SIM_DESC sd, cb->argv = STATE_PROG_ARGV (sd); cb->envp = STATE_PROG_ENVP (sd); - cpu->state.regs[FT32_HARD_SP] = addr; - cpu->state.num_i = 0; - cpu->state.cycles = 0; - cpu->state.next_tick_cycle = 100000; + ft32_cpu->regs[FT32_HARD_SP] = addr; + ft32_cpu->num_i = 0; + ft32_cpu->cycles = 0; + ft32_cpu->next_tick_cycle = 100000; return SIM_RC_OK; } diff --git a/sim/ft32/sim-main.h b/sim/ft32/sim-main.h index 1c59737..3a002ef 100644 --- a/sim/ft32/sim-main.h +++ b/sim/ft32/sim-main.h @@ -21,19 +21,12 @@ #ifndef SIM_MAIN_H #define SIM_MAIN_H +#define SIM_HAVE_COMMON_SIM_CPU + #include "sim-basics.h" #include "sim-base.h" #include "bfd.h" #include "ft32-sim.h" -struct _sim_cpu { - - /* The following are internal simulator state variables: */ - - struct ft32_cpu_state state; - - sim_cpu_base base; -}; - #endif |