#include "cpu.h"
#include "disas/disas.h"
#include "tcg-op.h"
-#include "helper.h"
+#include "exec/helper-proto.h"
#include "microblaze-decode.h"
+#include "exec/cpu_ldst.h"
+#include "exec/helper-gen.h"
+
+#include "trace-tcg.h"
-#define GEN_HELPER 1
-#include "helper.h"
#define SIM_COMPAT 0
#define DISAS_GNU 1
static TCGv env_btaken;
static TCGv env_btarget;
static TCGv env_iflags;
+static TCGv env_res_addr;
+static TCGv env_res_val;
#include "exec/gen-icount.h"
/* This is the state at translation time. */
typedef struct DisasContext {
- CPUMBState *env;
+ MicroBlazeCPU *cpu;
target_ulong pc;
/* Decoder. */
"sr16", "sr17", "sr18"
};
-/* Sign extend at translation time. */
-static inline int sign_extend(unsigned int val, unsigned int width)
-{
- int sval;
-
- /* LSL. */
- val <<= 31 - width;
- sval = val;
- /* ASR. */
- sval >>= 31 - width;
- return sval;
-}
-
static inline void t_sync_flags(DisasContext *dc)
{
/* Synch the tb dependent flags between translator and runtime. */
if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
tcg_gen_goto_tb(n);
tcg_gen_movi_tl(cpu_SR[SR_PC], dest);
- tcg_gen_exit_tb((tcg_target_long)tb + n);
+ tcg_gen_exit_tb((uintptr_t)tb + n);
} else {
tcg_gen_movi_tl(cpu_SR[SR_PC], dest);
tcg_gen_exit_tb(0);
tcg_gen_shri_tl(d, cpu_SR[SR_MSR], 31);
}
+/*
+ * write_carry sets the carry bits in MSR based on bit 0 of v.
+ * v[31:1] are ignored.
+ */
static void write_carry(DisasContext *dc, TCGv v)
{
TCGv t0 = tcg_temp_new();
tcg_temp_free(t0);
}
-static void write_carryi(DisasContext *dc, int carry)
+static void write_carryi(DisasContext *dc, bool carry)
{
TCGv t0 = tcg_temp_new();
- tcg_gen_movi_tl(t0, carry ? 1 : 0);
+ tcg_gen_movi_tl(t0, carry);
write_carry(dc, t0);
tcg_temp_free(t0);
}
static void dec_pattern(DisasContext *dc)
{
unsigned int mode;
- int l1;
+ TCGLabel *l1;
if ((dc->tb_flags & MSR_EE_FLAG)
- && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
- && !((dc->env->pvr.regs[2] & PVR2_USE_PCMP_INSTR))) {
+ && (dc->cpu->env.pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
+ && !((dc->cpu->env.pvr.regs[2] & PVR2_USE_PCMP_INSTR))) {
tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP);
t_gen_raise_exception(dc, EXCP_HW_EXCP);
}
}
break;
default:
- cpu_abort(dc->env,
+ cpu_abort(CPU(dc->cpu),
"unsupported pattern insn opcode=%x\n", dc->opcode);
break;
}
return;
if (not) {
- TCGv t = tcg_temp_new();
- tcg_gen_not_tl(t, *(dec_alu_op_b(dc)));
- tcg_gen_and_tl(cpu_R[dc->rd], cpu_R[dc->ra], t);
- tcg_temp_free(t);
+ tcg_gen_andc_tl(cpu_R[dc->rd], cpu_R[dc->ra], *(dec_alu_op_b(dc)));
} else
tcg_gen_and_tl(cpu_R[dc->rd], cpu_R[dc->ra], *(dec_alu_op_b(dc)));
}
static void dec_msr(DisasContext *dc)
{
+ CPUState *cs = CPU(dc->cpu);
TCGv t0, t1;
unsigned int sr, to, rn;
- int mem_index = cpu_mmu_index(dc->env);
+ int mem_index = cpu_mmu_index(&dc->cpu->env);
sr = dc->imm & ((1 << 14) - 1);
to = dc->imm & (1 << 14);
LOG_DIS("msr%s r%d imm=%x\n", clr ? "clr" : "set",
dc->rd, dc->imm);
- if (!(dc->env->pvr.regs[2] & PVR2_USE_MSR_INSTR)) {
+ if (!(dc->cpu->env.pvr.regs[2] & PVR2_USE_MSR_INSTR)) {
/* nop??? */
return;
}
tcg_gen_st_tl(cpu_R[dc->ra], cpu_env, offsetof(CPUMBState, shr));
break;
default:
- cpu_abort(dc->env, "unknown mts reg %x\n", sr);
+ cpu_abort(CPU(dc->cpu), "unknown mts reg %x\n", sr);
break;
}
} else {
cpu_env, offsetof(CPUMBState, pvr.regs[rn]));
break;
default:
- cpu_abort(dc->env, "unknown mfs reg %x\n", sr);
+ cpu_abort(cs, "unknown mfs reg %x\n", sr);
break;
}
}
unsigned int subcode;
if ((dc->tb_flags & MSR_EE_FLAG)
- && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
- && !(dc->env->pvr.regs[0] & PVR0_USE_HW_MUL_MASK)) {
+ && (dc->cpu->env.pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
+ && !(dc->cpu->env.pvr.regs[0] & PVR0_USE_HW_MUL_MASK)) {
tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP);
t_gen_raise_exception(dc, EXCP_HW_EXCP);
return;
/* mulh, mulhsu and mulhu are not available if C_USE_HW_MUL is < 2. */
if (subcode >= 1 && subcode <= 3
- && !((dc->env->pvr.regs[2] & PVR2_USE_MUL64_MASK))) {
+ && !((dc->cpu->env.pvr.regs[2] & PVR2_USE_MUL64_MASK))) {
/* nop??? */
}
t_gen_mulu(d[0], cpu_R[dc->rd], cpu_R[dc->ra], cpu_R[dc->rb]);
break;
default:
- cpu_abort(dc->env, "unknown MUL insn %x\n", subcode);
+ cpu_abort(CPU(dc->cpu), "unknown MUL insn %x\n", subcode);
break;
}
done:
u = dc->imm & 2;
LOG_DIS("div\n");
- if ((dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
- && !((dc->env->pvr.regs[0] & PVR0_USE_DIV_MASK))) {
+ if ((dc->cpu->env.pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
+ && !((dc->cpu->env.pvr.regs[0] & PVR0_USE_DIV_MASK))) {
tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP);
t_gen_raise_exception(dc, EXCP_HW_EXCP);
}
unsigned int s, t;
if ((dc->tb_flags & MSR_EE_FLAG)
- && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
- && !(dc->env->pvr.regs[0] & PVR0_USE_BARREL_MASK)) {
+ && (dc->cpu->env.pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
+ && !(dc->cpu->env.pvr.regs[0] & PVR0_USE_BARREL_MASK)) {
tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP);
t_gen_raise_exception(dc, EXCP_HW_EXCP);
return;
static void dec_bit(DisasContext *dc)
{
- TCGv t0, t1;
+ CPUState *cs = CPU(dc->cpu);
+ TCGv t0;
unsigned int op;
- int mem_index = cpu_mmu_index(dc->env);
+ int mem_index = cpu_mmu_index(&dc->cpu->env);
op = dc->ir & ((1 << 9) - 1);
switch (op) {
t0 = tcg_temp_new();
LOG_DIS("src r%d r%d\n", dc->rd, dc->ra);
- tcg_gen_andi_tl(t0, cpu_R[dc->ra], 1);
+ tcg_gen_andi_tl(t0, cpu_SR[SR_MSR], MSR_CC);
+ write_carry(dc, cpu_R[dc->ra]);
if (dc->rd) {
- t1 = tcg_temp_new();
- read_carry(dc, t1);
- tcg_gen_shli_tl(t1, t1, 31);
-
tcg_gen_shri_tl(cpu_R[dc->rd], cpu_R[dc->ra], 1);
- tcg_gen_or_tl(cpu_R[dc->rd], cpu_R[dc->rd], t1);
- tcg_temp_free(t1);
+ tcg_gen_or_tl(cpu_R[dc->rd], cpu_R[dc->rd], t0);
}
-
- /* Update carry. */
- write_carry(dc, t0);
tcg_temp_free(t0);
break;
case 0x1:
case 0x41:
/* srl. */
- t0 = tcg_temp_new();
LOG_DIS("srl r%d r%d\n", dc->rd, dc->ra);
- /* Update carry. */
- tcg_gen_andi_tl(t0, cpu_R[dc->ra], 1);
- write_carry(dc, t0);
- tcg_temp_free(t0);
+ /* Update carry. Note that write carry only looks at the LSB. */
+ write_carry(dc, cpu_R[dc->ra]);
if (dc->rd) {
if (op == 0x41)
tcg_gen_shri_tl(cpu_R[dc->rd], cpu_R[dc->ra], 1);
break;
case 0xe0:
if ((dc->tb_flags & MSR_EE_FLAG)
- && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
- && !((dc->env->pvr.regs[2] & PVR2_USE_PCMP_INSTR))) {
+ && (dc->cpu->env.pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
+ && !((dc->cpu->env.pvr.regs[2] & PVR2_USE_PCMP_INSTR))) {
tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP);
t_gen_raise_exception(dc, EXCP_HW_EXCP);
}
- if (dc->env->pvr.regs[2] & PVR2_USE_PCMP_INSTR) {
+ if (dc->cpu->env.pvr.regs[2] & PVR2_USE_PCMP_INSTR) {
gen_helper_clz(cpu_R[dc->rd], cpu_R[dc->ra]);
}
break;
tcg_gen_rotri_i32(cpu_R[dc->rd], cpu_R[dc->ra], 16);
break;
default:
- cpu_abort(dc->env, "unknown bit oc=%x op=%x rd=%d ra=%d rb=%d\n",
- dc->pc, op, dc->rd, dc->ra, dc->rb);
+ cpu_abort(cs, "unknown bit oc=%x op=%x rd=%d ra=%d rb=%d\n",
+ dc->pc, op, dc->rd, dc->ra, dc->rb);
break;
}
}
dc->clear_imm = 0;
}
-static inline void gen_load(DisasContext *dc, TCGv dst, TCGv addr,
- unsigned int size)
-{
- int mem_index = cpu_mmu_index(dc->env);
-
- if (size == 1) {
- tcg_gen_qemu_ld8u(dst, addr, mem_index);
- } else if (size == 2) {
- tcg_gen_qemu_ld16u(dst, addr, mem_index);
- } else if (size == 4) {
- tcg_gen_qemu_ld32u(dst, addr, mem_index);
- } else
- cpu_abort(dc->env, "Incorrect load size %d\n", size);
-}
-
static inline TCGv *compute_ldst_addr(DisasContext *dc, TCGv *t)
{
unsigned int extimm = dc->tb_flags & IMM_FLAG;
int stackprot = 0;
/* All load/stores use ra. */
- if (dc->ra == 1) {
+ if (dc->ra == 1 && dc->cpu->cfg.stackprot) {
stackprot = 1;
}
return &cpu_R[dc->ra];
}
- if (dc->rb == 1) {
+ if (dc->rb == 1 && dc->cpu->cfg.stackprot) {
stackprot = 1;
}
return t;
}
-static inline void dec_byteswap(DisasContext *dc, TCGv dst, TCGv src, int size)
-{
- if (size == 4) {
- tcg_gen_bswap32_tl(dst, src);
- } else if (size == 2) {
- TCGv t = tcg_temp_new();
-
- /* bswap16 assumes the high bits are zero. */
- tcg_gen_andi_tl(t, src, 0xffff);
- tcg_gen_bswap16_tl(dst, t);
- tcg_temp_free(t);
- } else {
- /* Ignore.
- cpu_abort(dc->env, "Invalid ldst byteswap size %d\n", size);
- */
- }
-}
-
static void dec_load(DisasContext *dc)
{
- TCGv t, *addr;
+ TCGv t, v, *addr;
unsigned int size, rev = 0, ex = 0;
+ TCGMemOp mop;
- size = 1 << (dc->opcode & 3);
-
+ mop = dc->opcode & 3;
+ size = 1 << mop;
if (!dc->type_b) {
rev = (dc->ir >> 9) & 1;
ex = (dc->ir >> 10) & 1;
}
+ mop |= MO_TE;
+ if (rev) {
+ mop ^= MO_BSWAP;
+ }
if (size > 4 && (dc->tb_flags & MSR_EE_FLAG)
- && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)) {
+ && (dc->cpu->env.pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)) {
tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP);
t_gen_raise_exception(dc, EXCP_HW_EXCP);
return;
}
break;
default:
- cpu_abort(dc->env, "Invalid reverse size\n");
+ cpu_abort(CPU(dc->cpu), "Invalid reverse size\n");
break;
}
}
sync_jmpstate(dc);
/* Verify alignment if needed. */
- if ((dc->env->pvr.regs[2] & PVR2_UNALIGNED_EXC_MASK) && size > 1) {
- TCGv v = tcg_temp_new();
-
- /*
- * Microblaze gives MMU faults priority over faults due to
- * unaligned addresses. That's why we speculatively do the load
- * into v. If the load succeeds, we verify alignment of the
- * address and if that succeeds we write into the destination reg.
- */
- gen_load(dc, v, *addr, size);
+ /*
+ * Microblaze gives MMU faults priority over faults due to
+ * unaligned addresses. That's why we speculatively do the load
+ * into v. If the load succeeds, we verify alignment of the
+ * address and if that succeeds we write into the destination reg.
+ */
+ v = tcg_temp_new();
+ tcg_gen_qemu_ld_tl(v, *addr, cpu_mmu_index(&dc->cpu->env), mop);
+ if ((dc->cpu->env.pvr.regs[2] & PVR2_UNALIGNED_EXC_MASK) && size > 1) {
tcg_gen_movi_tl(cpu_SR[SR_PC], dc->pc);
gen_helper_memalign(cpu_env, *addr, tcg_const_tl(dc->rd),
tcg_const_tl(0), tcg_const_tl(size - 1));
- if (dc->rd) {
- if (rev) {
- dec_byteswap(dc, cpu_R[dc->rd], v, size);
- } else {
- tcg_gen_mov_tl(cpu_R[dc->rd], v);
- }
- }
- tcg_temp_free(v);
- } else {
- if (dc->rd) {
- gen_load(dc, cpu_R[dc->rd], *addr, size);
- if (rev) {
- dec_byteswap(dc, cpu_R[dc->rd], cpu_R[dc->rd], size);
- }
- } else {
- /* We are loading into r0, no need to reverse. */
- gen_load(dc, env_imm, *addr, size);
- }
}
+ if (ex) {
+ tcg_gen_mov_tl(env_res_addr, *addr);
+ tcg_gen_mov_tl(env_res_val, v);
+ }
+ if (dc->rd) {
+ tcg_gen_mov_tl(cpu_R[dc->rd], v);
+ }
+ tcg_temp_free(v);
+
if (ex) { /* lwx */
/* no support for for AXI exclusive so always clear C */
write_carryi(dc, 0);
- tcg_gen_st_tl(*addr, cpu_env, offsetof(CPUMBState, res_addr));
}
if (addr == &t)
tcg_temp_free(t);
}
-static void gen_store(DisasContext *dc, TCGv addr, TCGv val,
- unsigned int size)
-{
- int mem_index = cpu_mmu_index(dc->env);
-
- if (size == 1)
- tcg_gen_qemu_st8(val, addr, mem_index);
- else if (size == 2) {
- tcg_gen_qemu_st16(val, addr, mem_index);
- } else if (size == 4) {
- tcg_gen_qemu_st32(val, addr, mem_index);
- } else
- cpu_abort(dc->env, "Incorrect store size %d\n", size);
-}
-
static void dec_store(DisasContext *dc)
{
- TCGv t, *addr, swx_addr, r_check;
- int swx_skip = 0;
+ TCGv t, *addr, swx_addr;
+ TCGLabel *swx_skip = NULL;
unsigned int size, rev = 0, ex = 0;
+ TCGMemOp mop;
- size = 1 << (dc->opcode & 3);
+ mop = dc->opcode & 3;
+ size = 1 << mop;
if (!dc->type_b) {
rev = (dc->ir >> 9) & 1;
ex = (dc->ir >> 10) & 1;
}
+ mop |= MO_TE;
+ if (rev) {
+ mop ^= MO_BSWAP;
+ }
if (size > 4 && (dc->tb_flags & MSR_EE_FLAG)
- && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)) {
+ && (dc->cpu->env.pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)) {
tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP);
t_gen_raise_exception(dc, EXCP_HW_EXCP);
return;
sync_jmpstate(dc);
addr = compute_ldst_addr(dc, &t);
- r_check = tcg_temp_new();
swx_addr = tcg_temp_local_new();
if (ex) { /* swx */
+ TCGv tval;
/* Force addr into the swx_addr. */
tcg_gen_mov_tl(swx_addr, *addr);
/* swx does not throw unaligned access errors, so force alignment */
tcg_gen_andi_tl(swx_addr, swx_addr, ~3);
- tcg_gen_ld_tl(r_check, cpu_env, offsetof(CPUMBState, res_addr));
write_carryi(dc, 1);
swx_skip = gen_new_label();
- tcg_gen_brcond_tl(TCG_COND_NE, r_check, swx_addr, swx_skip);
+ tcg_gen_brcond_tl(TCG_COND_NE, env_res_addr, swx_addr, swx_skip);
+
+ /* Compare the value loaded at lwx with current contents of
+ the reserved location.
+ FIXME: This only works for system emulation where we can expect
+ this compare and the following write to be atomic. For user
+ emulation we need to add atomicity between threads. */
+ tval = tcg_temp_new();
+ tcg_gen_qemu_ld_tl(tval, swx_addr, cpu_mmu_index(&dc->cpu->env),
+ MO_TEUL);
+ tcg_gen_brcond_tl(TCG_COND_NE, env_res_val, tval, swx_skip);
write_carryi(dc, 0);
+ tcg_temp_free(tval);
}
if (rev && size != 4) {
}
break;
default:
- cpu_abort(dc->env, "Invalid reverse size\n");
+ cpu_abort(CPU(dc->cpu), "Invalid reverse size\n");
break;
}
-
- if (size != 1) {
- TCGv bs_data = tcg_temp_new();
- dec_byteswap(dc, bs_data, cpu_R[dc->rd], size);
- gen_store(dc, *addr, bs_data, size);
- tcg_temp_free(bs_data);
- } else {
- gen_store(dc, *addr, cpu_R[dc->rd], size);
- }
- } else {
- if (rev) {
- TCGv bs_data = tcg_temp_new();
- dec_byteswap(dc, bs_data, cpu_R[dc->rd], size);
- gen_store(dc, *addr, bs_data, size);
- tcg_temp_free(bs_data);
- } else {
- gen_store(dc, *addr, cpu_R[dc->rd], size);
- }
}
+ tcg_gen_qemu_st_tl(cpu_R[dc->rd], *addr, cpu_mmu_index(&dc->cpu->env), mop);
/* Verify alignment if needed. */
- if ((dc->env->pvr.regs[2] & PVR2_UNALIGNED_EXC_MASK) && size > 1) {
+ if ((dc->cpu->env.pvr.regs[2] & PVR2_UNALIGNED_EXC_MASK) && size > 1) {
tcg_gen_movi_tl(cpu_SR[SR_PC], dc->pc);
/* FIXME: if the alignment is wrong, we should restore the value
* in memory. One possible way to achieve this is to probe
if (ex) {
gen_set_label(swx_skip);
}
- tcg_temp_free(r_check);
tcg_temp_free(swx_addr);
if (addr == &t)
tcg_gen_setcond_tl(TCG_COND_GT, d, a, b);
break;
default:
- cpu_abort(dc->env, "Unknown condition code %x.\n", cc);
+ cpu_abort(CPU(dc->cpu), "Unknown condition code %x.\n", cc);
break;
}
}
static void eval_cond_jmp(DisasContext *dc, TCGv pc_true, TCGv pc_false)
{
- int l1;
-
- l1 = gen_new_label();
+ TCGLabel *l1 = gen_new_label();
/* Conditional jmp. */
tcg_gen_mov_tl(cpu_SR[SR_PC], pc_false);
tcg_gen_brcondi_tl(TCG_COND_EQ, env_btaken, 0, l1);
static void dec_br(DisasContext *dc)
{
unsigned int dslot, link, abs, mbar;
- int mem_index = cpu_mmu_index(dc->env);
+ int mem_index = cpu_mmu_index(&dc->cpu->env);
dslot = dc->ir & (1 << 20);
abs = dc->ir & (1 << 19);
static void dec_rts(DisasContext *dc)
{
unsigned int b_bit, i_bit, e_bit;
- int mem_index = cpu_mmu_index(dc->env);
+ int mem_index = cpu_mmu_index(&dc->cpu->env);
i_bit = dc->ir & (1 << 21);
b_bit = dc->ir & (1 << 22);
static int dec_check_fpuv2(DisasContext *dc)
{
- int r;
-
- r = dc->env->pvr.regs[2] & PVR2_USE_FPU2_MASK;
-
- if (!r && (dc->tb_flags & MSR_EE_FLAG)) {
+ if ((dc->cpu->cfg.use_fpu != 2) && (dc->tb_flags & MSR_EE_FLAG)) {
tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_FPU);
t_gen_raise_exception(dc, EXCP_HW_EXCP);
}
- return r;
+ return (dc->cpu->cfg.use_fpu == 2) ? 0 : PVR2_USE_FPU2_MASK;
}
static void dec_fpu(DisasContext *dc)
unsigned int fpu_insn;
if ((dc->tb_flags & MSR_EE_FLAG)
- && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
- && !((dc->env->pvr.regs[2] & PVR2_USE_FPU_MASK))) {
+ && (dc->cpu->env.pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
+ && (dc->cpu->cfg.use_fpu != 1)) {
tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP);
t_gen_raise_exception(dc, EXCP_HW_EXCP);
return;
static void dec_null(DisasContext *dc)
{
if ((dc->tb_flags & MSR_EE_FLAG)
- && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)) {
+ && (dc->cpu->env.pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)) {
tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP);
t_gen_raise_exception(dc, EXCP_HW_EXCP);
return;
/* Insns connected to FSL or AXI stream attached devices. */
static void dec_stream(DisasContext *dc)
{
- int mem_index = cpu_mmu_index(dc->env);
+ int mem_index = cpu_mmu_index(&dc->cpu->env);
TCGv_i32 t_id, t_ctrl;
int ctrl;
dc->nr_nops = 0;
else {
if ((dc->tb_flags & MSR_EE_FLAG)
- && (dc->env->pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
- && (dc->env->pvr.regs[2] & PVR2_OPCODE_0x0_ILL_MASK)) {
+ && (dc->cpu->env.pvr.regs[2] & PVR2_ILL_OPCODE_EXC_MASK)
+ && (dc->cpu->env.pvr.regs[2] & PVR2_OPCODE_0x0_ILL_MASK)) {
tcg_gen_movi_tl(cpu_SR[SR_ESR], ESR_EC_ILLEGAL_OP);
t_gen_raise_exception(dc, EXCP_HW_EXCP);
return;
LOG_DIS("nr_nops=%d\t", dc->nr_nops);
dc->nr_nops++;
- if (dc->nr_nops > 4)
- cpu_abort(dc->env, "fetching nop sequence\n");
+ if (dc->nr_nops > 4) {
+ cpu_abort(CPU(dc->cpu), "fetching nop sequence\n");
+ }
}
/* bit 2 seems to indicate insn type. */
dc->type_b = ir & (1 << 29);
static void check_breakpoint(CPUMBState *env, DisasContext *dc)
{
+ CPUState *cs = CPU(mb_env_get_cpu(env));
CPUBreakpoint *bp;
- if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) {
- QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
+ if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
+ QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == dc->pc) {
t_gen_raise_exception(dc, EXCP_DEBUG);
dc->is_jmp = DISAS_UPDATE;
gen_intermediate_code_internal(MicroBlazeCPU *cpu, TranslationBlock *tb,
bool search_pc)
{
+ CPUState *cs = CPU(cpu);
CPUMBState *env = &cpu->env;
- uint16_t *gen_opc_end;
uint32_t pc_start;
int j, lj;
struct DisasContext ctx;
int max_insns;
pc_start = tb->pc;
- dc->env = env;
+ dc->cpu = cpu;
dc->tb = tb;
org_flags = dc->synced_flags = dc->tb_flags = tb->flags;
- gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE;
-
dc->is_jmp = DISAS_NEXT;
dc->jmp = 0;
dc->delayed_branch = !!(dc->tb_flags & D_FLAG);
dc->jmp = JMP_INDIRECT;
}
dc->pc = pc_start;
- dc->singlestep_enabled = env->singlestep_enabled;
+ dc->singlestep_enabled = cs->singlestep_enabled;
dc->cpustate_changed = 0;
dc->abort_at_next_insn = 0;
dc->nr_nops = 0;
- if (pc_start & 3)
- cpu_abort(env, "Microblaze: unaligned PC=%x\n", pc_start);
+ if (pc_start & 3) {
+ cpu_abort(cs, "Microblaze: unaligned PC=%x\n", pc_start);
+ }
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
#if !SIM_COMPAT
if (max_insns == 0)
max_insns = CF_COUNT_MASK;
- gen_tb_start();
+ gen_tb_start(tb);
do
{
#if SIM_COMPAT
check_breakpoint(env, dc);
if (search_pc) {
- j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
+ j = tcg_op_buf_count();
if (lj < j) {
lj++;
while (lj < j)
gen_goto_tb(dc, 0, dc->jmp_pc);
dc->is_jmp = DISAS_TB_JUMP;
} else if (dc->jmp == JMP_DIRECT_CC) {
- int l1;
-
+ TCGLabel *l1 = gen_new_label();
t_sync_flags(dc);
- l1 = gen_new_label();
/* Conditional jmp. */
tcg_gen_brcondi_tl(TCG_COND_NE, env_btaken, 0, l1);
gen_goto_tb(dc, 1, dc->pc);
break;
}
}
- if (env->singlestep_enabled)
+ if (cs->singlestep_enabled) {
break;
+ }
} while (!dc->is_jmp && !dc->cpustate_changed
- && tcg_ctx.gen_opc_ptr < gen_opc_end
- && !singlestep
- && (dc->pc < next_page_start)
- && num_insns < max_insns);
+ && !tcg_op_buf_full()
+ && !singlestep
+ && (dc->pc < next_page_start)
+ && num_insns < max_insns);
npc = dc->pc;
if (dc->jmp == JMP_DIRECT || dc->jmp == JMP_DIRECT_CC) {
}
t_sync_flags(dc);
- if (unlikely(env->singlestep_enabled)) {
+ if (unlikely(cs->singlestep_enabled)) {
TCGv_i32 tmp = tcg_const_i32(EXCP_DEBUG);
if (dc->is_jmp != DISAS_JUMP) {
}
}
gen_tb_end(tb, num_insns);
- *tcg_ctx.gen_opc_ptr = INDEX_op_end;
+
if (search_pc) {
- j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
+ j = tcg_op_buf_count();
lj++;
while (lj <= j)
tcg_ctx.gen_opc_instr_start[lj++] = 0;
#if DISAS_GNU
log_target_disas(env, pc_start, dc->pc - pc_start, 0);
#endif
- qemu_log("\nisize=%d osize=%td\n",
- dc->pc - pc_start, tcg_ctx.gen_opc_ptr -
- tcg_ctx.gen_opc_buf);
+ qemu_log("\nisize=%d osize=%d\n",
+ dc->pc - pc_start, tcg_op_buf_count());
}
#endif
#endif
env_btaken = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUMBState, btaken),
"btaken");
+ env_res_addr = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUMBState, res_addr),
+ "res_addr");
+ env_res_val = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUMBState, res_val),
+ "res_val");
for (i = 0; i < ARRAY_SIZE(cpu_R); i++) {
cpu_R[i] = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUMBState, regs[i]),
offsetof(CPUMBState, sregs[i]),
special_regnames[i]);
}
-#define GEN_HELPER 2
-#include "helper.h"
}
void restore_state_to_opc(CPUMBState *env, TranslationBlock *tb, int pc_pos)
projects / qemu.git / blobdiff