#include "disas.h"
#include "tcg-op.h"
#include "qemu-log.h"
+#include "sysemu.h"
-#include "helpers.h"
+#include "helper.h"
#define GEN_HELPER 1
-#include "helpers.h"
+#include "helper.h"
typedef struct DisasContext {
const XtensaConfig *config;
uint32_t next_pc;
int cring;
int ring;
+ uint32_t lbeg;
+ uint32_t lend;
+ TCGv_i32 litbase;
int is_jmp;
int singlestep_enabled;
bool sar_m32_5bit;
bool sar_m32_allocated;
TCGv_i32 sar_m32;
+
+ uint32_t ccount_delta;
+ unsigned used_window;
+
+ bool debug;
+ bool icount;
+ TCGv_i32 next_icount;
} DisasContext;
static TCGv_ptr cpu_env;
#include "gen-icount.h"
static const char * const sregnames[256] = {
+ [LBEG] = "LBEG",
+ [LEND] = "LEND",
+ [LCOUNT] = "LCOUNT",
[SAR] = "SAR",
+ [BR] = "BR",
+ [LITBASE] = "LITBASE",
[SCOMPARE1] = "SCOMPARE1",
+ [ACCLO] = "ACCLO",
+ [ACCHI] = "ACCHI",
+ [MR] = "MR0",
+ [MR + 1] = "MR1",
+ [MR + 2] = "MR2",
+ [MR + 3] = "MR3",
+ [WINDOW_BASE] = "WINDOW_BASE",
+ [WINDOW_START] = "WINDOW_START",
+ [PTEVADDR] = "PTEVADDR",
+ [RASID] = "RASID",
+ [ITLBCFG] = "ITLBCFG",
+ [DTLBCFG] = "DTLBCFG",
+ [IBREAKENABLE] = "IBREAKENABLE",
+ [IBREAKA] = "IBREAKA0",
+ [IBREAKA + 1] = "IBREAKA1",
+ [DBREAKA] = "DBREAKA0",
+ [DBREAKA + 1] = "DBREAKA1",
+ [DBREAKC] = "DBREAKC0",
+ [DBREAKC + 1] = "DBREAKC1",
[EPC1] = "EPC1",
+ [EPC1 + 1] = "EPC2",
+ [EPC1 + 2] = "EPC3",
+ [EPC1 + 3] = "EPC4",
+ [EPC1 + 4] = "EPC5",
+ [EPC1 + 5] = "EPC6",
+ [EPC1 + 6] = "EPC7",
[DEPC] = "DEPC",
+ [EPS2] = "EPS2",
+ [EPS2 + 1] = "EPS3",
+ [EPS2 + 2] = "EPS4",
+ [EPS2 + 3] = "EPS5",
+ [EPS2 + 4] = "EPS6",
+ [EPS2 + 5] = "EPS7",
[EXCSAVE1] = "EXCSAVE1",
+ [EXCSAVE1 + 1] = "EXCSAVE2",
+ [EXCSAVE1 + 2] = "EXCSAVE3",
+ [EXCSAVE1 + 3] = "EXCSAVE4",
+ [EXCSAVE1 + 4] = "EXCSAVE5",
+ [EXCSAVE1 + 5] = "EXCSAVE6",
+ [EXCSAVE1 + 6] = "EXCSAVE7",
+ [CPENABLE] = "CPENABLE",
+ [INTSET] = "INTSET",
+ [INTCLEAR] = "INTCLEAR",
+ [INTENABLE] = "INTENABLE",
[PS] = "PS",
+ [VECBASE] = "VECBASE",
[EXCCAUSE] = "EXCCAUSE",
+ [DEBUGCAUSE] = "DEBUGCAUSE",
+ [CCOUNT] = "CCOUNT",
+ [PRID] = "PRID",
+ [ICOUNT] = "ICOUNT",
+ [ICOUNTLEVEL] = "ICOUNTLEVEL",
[EXCVADDR] = "EXCVADDR",
+ [CCOMPARE] = "CCOMPARE0",
+ [CCOMPARE + 1] = "CCOMPARE1",
+ [CCOMPARE + 2] = "CCOMPARE2",
};
static const char * const uregnames[256] = {
cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
cpu_pc = tcg_global_mem_new_i32(TCG_AREG0,
- offsetof(CPUState, pc), "pc");
+ offsetof(CPUXtensaState, pc), "pc");
for (i = 0; i < 16; i++) {
cpu_R[i] = tcg_global_mem_new_i32(TCG_AREG0,
- offsetof(CPUState, regs[i]),
+ offsetof(CPUXtensaState, regs[i]),
regnames[i]);
}
for (i = 0; i < 256; ++i) {
if (sregnames[i]) {
cpu_SR[i] = tcg_global_mem_new_i32(TCG_AREG0,
- offsetof(CPUState, sregs[i]),
+ offsetof(CPUXtensaState, sregs[i]),
sregnames[i]);
}
}
for (i = 0; i < 256; ++i) {
if (uregnames[i]) {
cpu_UR[i] = tcg_global_mem_new_i32(TCG_AREG0,
- offsetof(CPUState, uregs[i]),
+ offsetof(CPUXtensaState, uregs[i]),
uregnames[i]);
}
}
#define GEN_HELPER 2
-#include "helpers.h"
+#include "helper.h"
+}
+
+static inline bool option_bits_enabled(DisasContext *dc, uint64_t opt)
+{
+ return xtensa_option_bits_enabled(dc->config, opt);
}
static inline bool option_enabled(DisasContext *dc, int opt)
return xtensa_option_enabled(dc->config, opt);
}
+static void init_litbase(DisasContext *dc)
+{
+ if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
+ dc->litbase = tcg_temp_local_new_i32();
+ tcg_gen_andi_i32(dc->litbase, cpu_SR[LITBASE], 0xfffff000);
+ }
+}
+
+static void reset_litbase(DisasContext *dc)
+{
+ if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
+ tcg_temp_free(dc->litbase);
+ }
+}
+
static void init_sar_tracker(DisasContext *dc)
{
dc->sar_5bit = false;
tcg_temp_free(tmp);
}
-static void gen_exception(int excp)
+static void gen_advance_ccount(DisasContext *dc)
+{
+ if (dc->ccount_delta > 0) {
+ TCGv_i32 tmp = tcg_const_i32(dc->ccount_delta);
+ dc->ccount_delta = 0;
+ gen_helper_advance_ccount(cpu_env, tmp);
+ tcg_temp_free(tmp);
+ }
+}
+
+static void reset_used_window(DisasContext *dc)
+{
+ dc->used_window = 0;
+}
+
+static void gen_exception(DisasContext *dc, int excp)
{
TCGv_i32 tmp = tcg_const_i32(excp);
- gen_helper_exception(tmp);
+ gen_advance_ccount(dc);
+ gen_helper_exception(cpu_env, tmp);
tcg_temp_free(tmp);
}
{
TCGv_i32 tpc = tcg_const_i32(dc->pc);
TCGv_i32 tcause = tcg_const_i32(cause);
- gen_helper_exception_cause(tpc, tcause);
+ gen_advance_ccount(dc);
+ gen_helper_exception_cause(cpu_env, tpc, tcause);
+ tcg_temp_free(tpc);
+ tcg_temp_free(tcause);
+ if (cause == ILLEGAL_INSTRUCTION_CAUSE ||
+ cause == SYSCALL_CAUSE) {
+ dc->is_jmp = DISAS_UPDATE;
+ }
+}
+
+static void gen_exception_cause_vaddr(DisasContext *dc, uint32_t cause,
+ TCGv_i32 vaddr)
+{
+ TCGv_i32 tpc = tcg_const_i32(dc->pc);
+ TCGv_i32 tcause = tcg_const_i32(cause);
+ gen_advance_ccount(dc);
+ gen_helper_exception_cause_vaddr(cpu_env, tpc, tcause, vaddr);
+ tcg_temp_free(tpc);
+ tcg_temp_free(tcause);
+}
+
+static void gen_debug_exception(DisasContext *dc, uint32_t cause)
+{
+ TCGv_i32 tpc = tcg_const_i32(dc->pc);
+ TCGv_i32 tcause = tcg_const_i32(cause);
+ gen_advance_ccount(dc);
+ gen_helper_debug_exception(cpu_env, tpc, tcause);
tcg_temp_free(tpc);
tcg_temp_free(tcause);
+ if (cause & (DEBUGCAUSE_IB | DEBUGCAUSE_BI | DEBUGCAUSE_BN)) {
+ dc->is_jmp = DISAS_UPDATE;
+ }
}
static void gen_check_privilege(DisasContext *dc)
{
if (dc->cring) {
gen_exception_cause(dc, PRIVILEGED_CAUSE);
+ dc->is_jmp = DISAS_UPDATE;
}
}
static void gen_jump_slot(DisasContext *dc, TCGv dest, int slot)
{
tcg_gen_mov_i32(cpu_pc, dest);
+ gen_advance_ccount(dc);
+ if (dc->icount) {
+ tcg_gen_mov_i32(cpu_SR[ICOUNT], dc->next_icount);
+ }
if (dc->singlestep_enabled) {
- gen_exception(EXCP_DEBUG);
+ gen_exception(dc, EXCP_DEBUG);
} else {
if (slot >= 0) {
tcg_gen_goto_tb(slot);
tcg_temp_free(tmp);
}
+static void gen_callw_slot(DisasContext *dc, int callinc, TCGv_i32 dest,
+ int slot)
+{
+ TCGv_i32 tcallinc = tcg_const_i32(callinc);
+
+ tcg_gen_deposit_i32(cpu_SR[PS], cpu_SR[PS],
+ tcallinc, PS_CALLINC_SHIFT, PS_CALLINC_LEN);
+ tcg_temp_free(tcallinc);
+ tcg_gen_movi_i32(cpu_R[callinc << 2],
+ (callinc << 30) | (dc->next_pc & 0x3fffffff));
+ gen_jump_slot(dc, dest, slot);
+}
+
+static void gen_callw(DisasContext *dc, int callinc, TCGv_i32 dest)
+{
+ gen_callw_slot(dc, callinc, dest, -1);
+}
+
+static void gen_callwi(DisasContext *dc, int callinc, uint32_t dest, int slot)
+{
+ TCGv_i32 tmp = tcg_const_i32(dest);
+ if (((dc->pc ^ dest) & TARGET_PAGE_MASK) != 0) {
+ slot = -1;
+ }
+ gen_callw_slot(dc, callinc, tmp, slot);
+ tcg_temp_free(tmp);
+}
+
+static bool gen_check_loop_end(DisasContext *dc, int slot)
+{
+ if (option_enabled(dc, XTENSA_OPTION_LOOP) &&
+ !(dc->tb->flags & XTENSA_TBFLAG_EXCM) &&
+ dc->next_pc == dc->lend) {
+ int label = gen_new_label();
+
+ gen_advance_ccount(dc);
+ tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_SR[LCOUNT], 0, label);
+ tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_SR[LCOUNT], 1);
+ gen_jumpi(dc, dc->lbeg, slot);
+ gen_set_label(label);
+ gen_jumpi(dc, dc->next_pc, -1);
+ return true;
+ }
+ return false;
+}
+
+static void gen_jumpi_check_loop_end(DisasContext *dc, int slot)
+{
+ if (!gen_check_loop_end(dc, slot)) {
+ gen_jumpi(dc, dc->next_pc, slot);
+ }
+}
+
static void gen_brcond(DisasContext *dc, TCGCond cond,
TCGv_i32 t0, TCGv_i32 t1, uint32_t offset)
{
int label = gen_new_label();
+ gen_advance_ccount(dc);
tcg_gen_brcond_i32(cond, t0, t1, label);
- gen_jumpi(dc, dc->next_pc, 0);
+ gen_jumpi_check_loop_end(dc, 0);
gen_set_label(label);
gen_jumpi(dc, dc->pc + offset, 1);
}
tcg_temp_free(tmp);
}
+static void gen_rsr_ccount(DisasContext *dc, TCGv_i32 d, uint32_t sr)
+{
+ gen_advance_ccount(dc);
+ tcg_gen_mov_i32(d, cpu_SR[sr]);
+}
+
+static void gen_rsr_ptevaddr(DisasContext *dc, TCGv_i32 d, uint32_t sr)
+{
+ tcg_gen_shri_i32(d, cpu_SR[EXCVADDR], 10);
+ tcg_gen_or_i32(d, d, cpu_SR[sr]);
+ tcg_gen_andi_i32(d, d, 0xfffffffc);
+}
+
static void gen_rsr(DisasContext *dc, TCGv_i32 d, uint32_t sr)
{
static void (* const rsr_handler[256])(DisasContext *dc,
TCGv_i32 d, uint32_t sr) = {
+ [CCOUNT] = gen_rsr_ccount,
+ [PTEVADDR] = gen_rsr_ptevaddr,
};
if (sregnames[sr]) {
}
}
+static void gen_wsr_lbeg(DisasContext *dc, uint32_t sr, TCGv_i32 s)
+{
+ gen_helper_wsr_lbeg(cpu_env, s);
+ gen_jumpi_check_loop_end(dc, 0);
+}
+
+static void gen_wsr_lend(DisasContext *dc, uint32_t sr, TCGv_i32 s)
+{
+ gen_helper_wsr_lend(cpu_env, s);
+ gen_jumpi_check_loop_end(dc, 0);
+}
+
static void gen_wsr_sar(DisasContext *dc, uint32_t sr, TCGv_i32 s)
{
tcg_gen_andi_i32(cpu_SR[sr], s, 0x3f);
dc->sar_m32_5bit = false;
}
+static void gen_wsr_br(DisasContext *dc, uint32_t sr, TCGv_i32 s)
+{
+ tcg_gen_andi_i32(cpu_SR[sr], s, 0xffff);
+}
+
+static void gen_wsr_litbase(DisasContext *dc, uint32_t sr, TCGv_i32 s)
+{
+ tcg_gen_andi_i32(cpu_SR[sr], s, 0xfffff001);
+ /* This can change tb->flags, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+}
+
+static void gen_wsr_acchi(DisasContext *dc, uint32_t sr, TCGv_i32 s)
+{
+ tcg_gen_ext8s_i32(cpu_SR[sr], s);
+}
+
+static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ gen_helper_wsr_windowbase(cpu_env, v);
+ reset_used_window(dc);
+}
+
+static void gen_wsr_windowstart(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ tcg_gen_andi_i32(cpu_SR[sr], v, (1 << dc->config->nareg / 4) - 1);
+ reset_used_window(dc);
+}
+
+static void gen_wsr_ptevaddr(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ tcg_gen_andi_i32(cpu_SR[sr], v, 0xffc00000);
+}
+
+static void gen_wsr_rasid(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ gen_helper_wsr_rasid(cpu_env, v);
+ /* This can change tb->flags, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+}
+
+static void gen_wsr_tlbcfg(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ tcg_gen_andi_i32(cpu_SR[sr], v, 0x01130000);
+}
+
+static void gen_wsr_ibreakenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ gen_helper_wsr_ibreakenable(cpu_env, v);
+ gen_jumpi_check_loop_end(dc, 0);
+}
+
+static void gen_wsr_ibreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ unsigned id = sr - IBREAKA;
+
+ if (id < dc->config->nibreak) {
+ TCGv_i32 tmp = tcg_const_i32(id);
+ gen_helper_wsr_ibreaka(cpu_env, tmp, v);
+ tcg_temp_free(tmp);
+ gen_jumpi_check_loop_end(dc, 0);
+ }
+}
+
+static void gen_wsr_dbreaka(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ unsigned id = sr - DBREAKA;
+
+ if (id < dc->config->ndbreak) {
+ TCGv_i32 tmp = tcg_const_i32(id);
+ gen_helper_wsr_dbreaka(cpu_env, tmp, v);
+ tcg_temp_free(tmp);
+ }
+}
+
+static void gen_wsr_dbreakc(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ unsigned id = sr - DBREAKC;
+
+ if (id < dc->config->ndbreak) {
+ TCGv_i32 tmp = tcg_const_i32(id);
+ gen_helper_wsr_dbreakc(cpu_env, tmp, v);
+ tcg_temp_free(tmp);
+ }
+}
+
+static void gen_wsr_intset(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ tcg_gen_andi_i32(cpu_SR[sr], v,
+ dc->config->inttype_mask[INTTYPE_SOFTWARE]);
+ gen_helper_check_interrupts(cpu_env);
+ gen_jumpi_check_loop_end(dc, 0);
+}
+
+static void gen_wsr_intclear(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ TCGv_i32 tmp = tcg_temp_new_i32();
+
+ tcg_gen_andi_i32(tmp, v,
+ dc->config->inttype_mask[INTTYPE_EDGE] |
+ dc->config->inttype_mask[INTTYPE_NMI] |
+ dc->config->inttype_mask[INTTYPE_SOFTWARE]);
+ tcg_gen_andc_i32(cpu_SR[INTSET], cpu_SR[INTSET], tmp);
+ tcg_temp_free(tmp);
+ gen_helper_check_interrupts(cpu_env);
+}
+
+static void gen_wsr_intenable(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ tcg_gen_mov_i32(cpu_SR[sr], v);
+ gen_helper_check_interrupts(cpu_env);
+ gen_jumpi_check_loop_end(dc, 0);
+}
+
static void gen_wsr_ps(DisasContext *dc, uint32_t sr, TCGv_i32 v)
{
uint32_t mask = PS_WOE | PS_CALLINC | PS_OWB |
mask |= PS_RING;
}
tcg_gen_andi_i32(cpu_SR[sr], v, mask);
- /* This can change mmu index, so exit tb */
- gen_jumpi(dc, dc->next_pc, -1);
+ reset_used_window(dc);
+ gen_helper_check_interrupts(cpu_env);
+ /* This can change mmu index and tb->flags, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+}
+
+static void gen_wsr_debugcause(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+}
+
+static void gen_wsr_prid(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+}
+
+static void gen_wsr_icount(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ if (dc->icount) {
+ tcg_gen_mov_i32(dc->next_icount, v);
+ } else {
+ tcg_gen_mov_i32(cpu_SR[sr], v);
+ }
+}
+
+static void gen_wsr_icountlevel(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ tcg_gen_andi_i32(cpu_SR[sr], v, 0xf);
+ /* This can change tb->flags, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+}
+
+static void gen_wsr_ccompare(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ uint32_t id = sr - CCOMPARE;
+ if (id < dc->config->nccompare) {
+ uint32_t int_bit = 1 << dc->config->timerint[id];
+ gen_advance_ccount(dc);
+ tcg_gen_mov_i32(cpu_SR[sr], v);
+ tcg_gen_andi_i32(cpu_SR[INTSET], cpu_SR[INTSET], ~int_bit);
+ gen_helper_check_interrupts(cpu_env);
+ }
}
static void gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32 s)
{
static void (* const wsr_handler[256])(DisasContext *dc,
uint32_t sr, TCGv_i32 v) = {
+ [LBEG] = gen_wsr_lbeg,
+ [LEND] = gen_wsr_lend,
[SAR] = gen_wsr_sar,
+ [BR] = gen_wsr_br,
+ [LITBASE] = gen_wsr_litbase,
+ [ACCHI] = gen_wsr_acchi,
+ [WINDOW_BASE] = gen_wsr_windowbase,
+ [WINDOW_START] = gen_wsr_windowstart,
+ [PTEVADDR] = gen_wsr_ptevaddr,
+ [RASID] = gen_wsr_rasid,
+ [ITLBCFG] = gen_wsr_tlbcfg,
+ [DTLBCFG] = gen_wsr_tlbcfg,
+ [IBREAKENABLE] = gen_wsr_ibreakenable,
+ [IBREAKA] = gen_wsr_ibreaka,
+ [IBREAKA + 1] = gen_wsr_ibreaka,
+ [DBREAKA] = gen_wsr_dbreaka,
+ [DBREAKA + 1] = gen_wsr_dbreaka,
+ [DBREAKC] = gen_wsr_dbreakc,
+ [DBREAKC + 1] = gen_wsr_dbreakc,
+ [INTSET] = gen_wsr_intset,
+ [INTCLEAR] = gen_wsr_intclear,
+ [INTENABLE] = gen_wsr_intenable,
[PS] = gen_wsr_ps,
+ [DEBUGCAUSE] = gen_wsr_debugcause,
+ [PRID] = gen_wsr_prid,
+ [ICOUNT] = gen_wsr_icount,
+ [ICOUNTLEVEL] = gen_wsr_icountlevel,
+ [CCOMPARE] = gen_wsr_ccompare,
+ [CCOMPARE + 1] = gen_wsr_ccompare,
+ [CCOMPARE + 2] = gen_wsr_ccompare,
};
if (sregnames[sr]) {
}
}
+static void gen_load_store_alignment(DisasContext *dc, int shift,
+ TCGv_i32 addr, bool no_hw_alignment)
+{
+ if (!option_enabled(dc, XTENSA_OPTION_UNALIGNED_EXCEPTION)) {
+ tcg_gen_andi_i32(addr, addr, ~0 << shift);
+ } else if (option_enabled(dc, XTENSA_OPTION_HW_ALIGNMENT) &&
+ no_hw_alignment) {
+ int label = gen_new_label();
+ TCGv_i32 tmp = tcg_temp_new_i32();
+ tcg_gen_andi_i32(tmp, addr, ~(~0 << shift));
+ tcg_gen_brcondi_i32(TCG_COND_EQ, tmp, 0, label);
+ gen_exception_cause_vaddr(dc, LOAD_STORE_ALIGNMENT_CAUSE, addr);
+ gen_set_label(label);
+ tcg_temp_free(tmp);
+ }
+}
+
+static void gen_waiti(DisasContext *dc, uint32_t imm4)
+{
+ TCGv_i32 pc = tcg_const_i32(dc->next_pc);
+ TCGv_i32 intlevel = tcg_const_i32(imm4);
+ gen_advance_ccount(dc);
+ gen_helper_waiti(cpu_env, pc, intlevel);
+ tcg_temp_free(pc);
+ tcg_temp_free(intlevel);
+}
+
+static void gen_window_check1(DisasContext *dc, unsigned r1)
+{
+ if (dc->tb->flags & XTENSA_TBFLAG_EXCM) {
+ return;
+ }
+ if (option_enabled(dc, XTENSA_OPTION_WINDOWED_REGISTER) &&
+ r1 / 4 > dc->used_window) {
+ TCGv_i32 pc = tcg_const_i32(dc->pc);
+ TCGv_i32 w = tcg_const_i32(r1 / 4);
+
+ dc->used_window = r1 / 4;
+ gen_advance_ccount(dc);
+ gen_helper_window_check(cpu_env, pc, w);
+
+ tcg_temp_free(w);
+ tcg_temp_free(pc);
+ }
+}
+
+static void gen_window_check2(DisasContext *dc, unsigned r1, unsigned r2)
+{
+ gen_window_check1(dc, r1 > r2 ? r1 : r2);
+}
+
+static void gen_window_check3(DisasContext *dc, unsigned r1, unsigned r2,
+ unsigned r3)
+{
+ gen_window_check2(dc, r1, r2 > r3 ? r2 : r3);
+}
+
+static TCGv_i32 gen_mac16_m(TCGv_i32 v, bool hi, bool is_unsigned)
+{
+ TCGv_i32 m = tcg_temp_new_i32();
+
+ if (hi) {
+ (is_unsigned ? tcg_gen_shri_i32 : tcg_gen_sari_i32)(m, v, 16);
+ } else {
+ (is_unsigned ? tcg_gen_ext16u_i32 : tcg_gen_ext16s_i32)(m, v);
+ }
+ return m;
+}
+
static void disas_xtensa_insn(DisasContext *dc)
{
-#define HAS_OPTION(opt) do { \
- if (!option_enabled(dc, opt)) { \
- qemu_log("Option %d is not enabled %s:%d\n", \
- (opt), __FILE__, __LINE__); \
+#define HAS_OPTION_BITS(opt) do { \
+ if (!option_bits_enabled(dc, opt)) { \
+ qemu_log("Option is not enabled %s:%d\n", \
+ __FILE__, __LINE__); \
goto invalid_opcode; \
} \
} while (0)
+#define HAS_OPTION(opt) HAS_OPTION_BITS(XTENSA_OPTION_BIT(opt))
+
#define TBD() qemu_log("TBD(pc = %08x): %s:%d\n", dc->pc, __FILE__, __LINE__)
#define RESERVED() do { \
qemu_log("RESERVED(pc = %08x, %02x%02x%02x): %s:%d\n", \
#define RRR_S (((b1) & 0xf))
#define RRR_T (((b0) & 0xf0) >> 4)
#endif
+#define RRR_X ((RRR_R & 0x4) >> 2)
+#define RRR_Y ((RRR_T & 0x4) >> 2)
+#define RRR_W (RRR_R & 0x3)
#define RRRN_R RRR_R
#define RRRN_S RRR_S
#define RSR_SR (b1)
- uint8_t b0 = ldub_code(dc->pc);
- uint8_t b1 = ldub_code(dc->pc + 1);
- uint8_t b2 = ldub_code(dc->pc + 2);
+ uint8_t b0 = cpu_ldub_code(cpu_single_env, dc->pc);
+ uint8_t b1 = cpu_ldub_code(cpu_single_env, dc->pc + 1);
+ uint8_t b2 = 0;
static const uint32_t B4CONST[] = {
0xffffffff, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 16, 32, 64, 128, 256
HAS_OPTION(XTENSA_OPTION_CODE_DENSITY);
} else {
dc->next_pc = dc->pc + 3;
+ b2 = cpu_ldub_code(cpu_single_env, dc->pc + 2);
}
switch (OP0) {
switch (CALLX_N) {
case 0: /*RET*/
case 2: /*JX*/
+ gen_window_check1(dc, CALLX_S);
gen_jump(dc, cpu_R[CALLX_S]);
break;
case 1: /*RETWw*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
- TBD();
+ {
+ TCGv_i32 tmp = tcg_const_i32(dc->pc);
+ gen_advance_ccount(dc);
+ gen_helper_retw(tmp, cpu_env, tmp);
+ gen_jump(dc, tmp);
+ tcg_temp_free(tmp);
+ }
break;
case 3: /*reserved*/
break;
case 3: /*CALLX*/
+ gen_window_check2(dc, CALLX_S, CALLX_N << 2);
switch (CALLX_N) {
case 0: /*CALLX0*/
{
case 2: /*CALLX8w*/
case 3: /*CALLX12w*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
- TBD();
+ {
+ TCGv_i32 tmp = tcg_temp_new_i32();
+
+ tcg_gen_mov_i32(tmp, cpu_R[CALLX_S]);
+ gen_callw(dc, CALLX_N, tmp);
+ tcg_temp_free(tmp);
+ }
break;
}
break;
case 1: /*MOVSPw*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
- TBD();
+ gen_window_check2(dc, RRR_T, RRR_S);
+ {
+ TCGv_i32 pc = tcg_const_i32(dc->pc);
+ gen_advance_ccount(dc);
+ gen_helper_movsp(cpu_env, pc);
+ tcg_gen_mov_i32(cpu_R[RRR_T], cpu_R[RRR_S]);
+ tcg_temp_free(pc);
+ }
break;
case 2: /*SYNC*/
case 0: /*RFEx*/
gen_check_privilege(dc);
tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_EXCM);
+ gen_helper_check_interrupts(cpu_env);
gen_jump(dc, cpu_SR[EPC1]);
break;
case 4: /*RFWOw*/
case 5: /*RFWUw*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
- TBD();
+ gen_check_privilege(dc);
+ {
+ TCGv_i32 tmp = tcg_const_i32(1);
+
+ tcg_gen_andi_i32(
+ cpu_SR[PS], cpu_SR[PS], ~PS_EXCM);
+ tcg_gen_shl_i32(tmp, tmp, cpu_SR[WINDOW_BASE]);
+
+ if (RRR_S == 4) {
+ tcg_gen_andc_i32(cpu_SR[WINDOW_START],
+ cpu_SR[WINDOW_START], tmp);
+ } else {
+ tcg_gen_or_i32(cpu_SR[WINDOW_START],
+ cpu_SR[WINDOW_START], tmp);
+ }
+
+ gen_helper_restore_owb(cpu_env);
+ gen_helper_check_interrupts(cpu_env);
+ gen_jump(dc, cpu_SR[EPC1]);
+
+ tcg_temp_free(tmp);
+ }
break;
default: /*reserved*/
case 1: /*RFIx*/
HAS_OPTION(XTENSA_OPTION_HIGH_PRIORITY_INTERRUPT);
- TBD();
+ if (RRR_S >= 2 && RRR_S <= dc->config->nlevel) {
+ gen_check_privilege(dc);
+ tcg_gen_mov_i32(cpu_SR[PS],
+ cpu_SR[EPS2 + RRR_S - 2]);
+ gen_helper_check_interrupts(cpu_env);
+ gen_jump(dc, cpu_SR[EPC1 + RRR_S - 1]);
+ } else {
+ qemu_log("RFI %d is illegal\n", RRR_S);
+ gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
+ }
break;
case 2: /*RFME*/
break;
case 4: /*BREAKx*/
- HAS_OPTION(XTENSA_OPTION_EXCEPTION);
- TBD();
+ HAS_OPTION(XTENSA_OPTION_DEBUG);
+ if (dc->debug) {
+ gen_debug_exception(dc, DEBUGCAUSE_BI);
+ }
break;
case 5: /*SYSCALLx*/
break;
case 1: /*SIMCALL*/
- TBD();
+ if (semihosting_enabled) {
+ gen_check_privilege(dc);
+ gen_helper_simcall(cpu_env);
+ } else {
+ qemu_log("SIMCALL but semihosting is disabled\n");
+ gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
+ }
break;
default:
case 6: /*RSILx*/
HAS_OPTION(XTENSA_OPTION_INTERRUPT);
gen_check_privilege(dc);
+ gen_window_check1(dc, RRR_T);
tcg_gen_mov_i32(cpu_R[RRR_T], cpu_SR[PS]);
+ tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS], ~PS_INTLEVEL);
tcg_gen_ori_i32(cpu_SR[PS], cpu_SR[PS], RRR_S);
- tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS],
- RRR_S | ~PS_INTLEVEL);
+ gen_helper_check_interrupts(cpu_env);
+ gen_jumpi_check_loop_end(dc, 0);
break;
case 7: /*WAITIx*/
HAS_OPTION(XTENSA_OPTION_INTERRUPT);
- TBD();
+ gen_check_privilege(dc);
+ gen_waiti(dc, RRR_S);
break;
case 8: /*ANY4p*/
- HAS_OPTION(XTENSA_OPTION_BOOLEAN);
- TBD();
- break;
-
case 9: /*ALL4p*/
- HAS_OPTION(XTENSA_OPTION_BOOLEAN);
- TBD();
- break;
-
case 10: /*ANY8p*/
- HAS_OPTION(XTENSA_OPTION_BOOLEAN);
- TBD();
- break;
-
case 11: /*ALL8p*/
HAS_OPTION(XTENSA_OPTION_BOOLEAN);
- TBD();
+ {
+ const unsigned shift = (RRR_R & 2) ? 8 : 4;
+ TCGv_i32 mask = tcg_const_i32(
+ ((1 << shift) - 1) << RRR_S);
+ TCGv_i32 tmp = tcg_temp_new_i32();
+
+ tcg_gen_and_i32(tmp, cpu_SR[BR], mask);
+ if (RRR_R & 1) { /*ALL*/
+ tcg_gen_addi_i32(tmp, tmp, 1 << RRR_S);
+ } else { /*ANY*/
+ tcg_gen_add_i32(tmp, tmp, mask);
+ }
+ tcg_gen_shri_i32(tmp, tmp, RRR_S + shift);
+ tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR],
+ tmp, RRR_T, 1);
+ tcg_temp_free(mask);
+ tcg_temp_free(tmp);
+ }
break;
default: /*reserved*/
break;
case 1: /*AND*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
tcg_gen_and_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
break;
case 2: /*OR*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
tcg_gen_or_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
break;
case 3: /*XOR*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
tcg_gen_xor_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
break;
case 4: /*ST1*/
switch (RRR_R) {
case 0: /*SSR*/
+ gen_window_check1(dc, RRR_S);
gen_right_shift_sar(dc, cpu_R[RRR_S]);
break;
case 1: /*SSL*/
+ gen_window_check1(dc, RRR_S);
gen_left_shift_sar(dc, cpu_R[RRR_S]);
break;
case 2: /*SSA8L*/
+ gen_window_check1(dc, RRR_S);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
break;
case 3: /*SSA8B*/
+ gen_window_check1(dc, RRR_S);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
case 8: /*ROTWw*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
- TBD();
+ gen_check_privilege(dc);
+ {
+ TCGv_i32 tmp = tcg_const_i32(
+ RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0));
+ gen_helper_rotw(cpu_env, tmp);
+ tcg_temp_free(tmp);
+ reset_used_window(dc);
+ }
break;
case 14: /*NSAu*/
- HAS_OPTION(XTENSA_OPTION_MISC_OP);
+ HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA);
+ gen_window_check2(dc, RRR_S, RRR_T);
gen_helper_nsa(cpu_R[RRR_T], cpu_R[RRR_S]);
break;
case 15: /*NSAUu*/
- HAS_OPTION(XTENSA_OPTION_MISC_OP);
+ HAS_OPTION(XTENSA_OPTION_MISC_OP_NSA);
+ gen_window_check2(dc, RRR_S, RRR_T);
gen_helper_nsau(cpu_R[RRR_T], cpu_R[RRR_S]);
break;
break;
case 5: /*TLB*/
- TBD();
+ HAS_OPTION_BITS(
+ XTENSA_OPTION_BIT(XTENSA_OPTION_MMU) |
+ XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_PROTECTION) |
+ XTENSA_OPTION_BIT(XTENSA_OPTION_REGION_TRANSLATION));
+ gen_check_privilege(dc);
+ gen_window_check2(dc, RRR_S, RRR_T);
+ {
+ TCGv_i32 dtlb = tcg_const_i32((RRR_R & 8) != 0);
+
+ switch (RRR_R & 7) {
+ case 3: /*RITLB0*/ /*RDTLB0*/
+ gen_helper_rtlb0(cpu_R[RRR_T],
+ cpu_env, cpu_R[RRR_S], dtlb);
+ break;
+
+ case 4: /*IITLB*/ /*IDTLB*/
+ gen_helper_itlb(cpu_env, cpu_R[RRR_S], dtlb);
+ /* This could change memory mapping, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+ break;
+
+ case 5: /*PITLB*/ /*PDTLB*/
+ tcg_gen_movi_i32(cpu_pc, dc->pc);
+ gen_helper_ptlb(cpu_R[RRR_T],
+ cpu_env, cpu_R[RRR_S], dtlb);
+ break;
+
+ case 6: /*WITLB*/ /*WDTLB*/
+ gen_helper_wtlb(
+ cpu_env, cpu_R[RRR_T], cpu_R[RRR_S], dtlb);
+ /* This could change memory mapping, so exit tb */
+ gen_jumpi_check_loop_end(dc, -1);
+ break;
+
+ case 7: /*RITLB1*/ /*RDTLB1*/
+ gen_helper_rtlb1(cpu_R[RRR_T],
+ cpu_env, cpu_R[RRR_S], dtlb);
+ break;
+
+ default:
+ tcg_temp_free(dtlb);
+ RESERVED();
+ break;
+ }
+ tcg_temp_free(dtlb);
+ }
break;
case 6: /*RT0*/
+ gen_window_check2(dc, RRR_R, RRR_T);
switch (RRR_S) {
case 0: /*NEG*/
tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]);
break;
case 8: /*ADD*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
tcg_gen_add_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
break;
case 9: /*ADD**/
case 10:
case 11:
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 8);
break;
case 12: /*SUB*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
tcg_gen_sub_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
break;
case 13: /*SUB**/
case 14:
case 15:
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_shli_i32(tmp, cpu_R[RRR_S], OP2 - 12);
switch (OP2) {
case 0: /*SLLI*/
case 1:
+ gen_window_check2(dc, RRR_R, RRR_S);
tcg_gen_shli_i32(cpu_R[RRR_R], cpu_R[RRR_S],
32 - (RRR_T | ((OP2 & 1) << 4)));
break;
case 2: /*SRAI*/
case 3:
+ gen_window_check2(dc, RRR_R, RRR_T);
tcg_gen_sari_i32(cpu_R[RRR_R], cpu_R[RRR_T],
RRR_S | ((OP2 & 1) << 4));
break;
case 4: /*SRLI*/
+ gen_window_check2(dc, RRR_R, RRR_T);
tcg_gen_shri_i32(cpu_R[RRR_R], cpu_R[RRR_T], RRR_S);
break;
if (RSR_SR >= 64) {
gen_check_privilege(dc);
}
+ gen_window_check1(dc, RRR_T);
tcg_gen_mov_i32(tmp, cpu_R[RRR_T]);
gen_rsr(dc, cpu_R[RRR_T], RSR_SR);
gen_wsr(dc, RSR_SR, tmp);
#define gen_shift(cmd) gen_shift_reg(cmd, cpu_SR[SAR])
case 8: /*SRC*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
TCGv_i64 v = tcg_temp_new_i64();
tcg_gen_concat_i32_i64(v, cpu_R[RRR_T], cpu_R[RRR_S]);
break;
case 9: /*SRL*/
+ gen_window_check2(dc, RRR_R, RRR_T);
if (dc->sar_5bit) {
tcg_gen_shr_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);
} else {
break;
case 10: /*SLL*/
+ gen_window_check2(dc, RRR_R, RRR_S);
if (dc->sar_m32_5bit) {
tcg_gen_shl_i32(cpu_R[RRR_R], cpu_R[RRR_S], dc->sar_m32);
} else {
break;
case 11: /*SRA*/
+ gen_window_check2(dc, RRR_R, RRR_T);
if (dc->sar_5bit) {
tcg_gen_sar_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);
} else {
case 12: /*MUL16U*/
HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
TCGv_i32 v1 = tcg_temp_new_i32();
TCGv_i32 v2 = tcg_temp_new_i32();
case 13: /*MUL16S*/
HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
TCGv_i32 v1 = tcg_temp_new_i32();
TCGv_i32 v2 = tcg_temp_new_i32();
break;
case 2: /*RST2*/
+ if (OP2 >= 8) {
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
+ }
+
if (OP2 >= 12) {
HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV);
int label = gen_new_label();
}
switch (OP2) {
+#define BOOLEAN_LOGIC(fn, r, s, t) \
+ do { \
+ HAS_OPTION(XTENSA_OPTION_BOOLEAN); \
+ TCGv_i32 tmp1 = tcg_temp_new_i32(); \
+ TCGv_i32 tmp2 = tcg_temp_new_i32(); \
+ \
+ tcg_gen_shri_i32(tmp1, cpu_SR[BR], s); \
+ tcg_gen_shri_i32(tmp2, cpu_SR[BR], t); \
+ tcg_gen_##fn##_i32(tmp1, tmp1, tmp2); \
+ tcg_gen_deposit_i32(cpu_SR[BR], cpu_SR[BR], tmp1, r, 1); \
+ tcg_temp_free(tmp1); \
+ tcg_temp_free(tmp2); \
+ } while (0)
+
+ case 0: /*ANDBp*/
+ BOOLEAN_LOGIC(and, RRR_R, RRR_S, RRR_T);
+ break;
+
+ case 1: /*ANDBCp*/
+ BOOLEAN_LOGIC(andc, RRR_R, RRR_S, RRR_T);
+ break;
+
+ case 2: /*ORBp*/
+ BOOLEAN_LOGIC(or, RRR_R, RRR_S, RRR_T);
+ break;
+
+ case 3: /*ORBCp*/
+ BOOLEAN_LOGIC(orc, RRR_R, RRR_S, RRR_T);
+ break;
+
+ case 4: /*XORBp*/
+ BOOLEAN_LOGIC(xor, RRR_R, RRR_S, RRR_T);
+ break;
+
+#undef BOOLEAN_LOGIC
+
case 8: /*MULLi*/
HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL);
tcg_gen_mul_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
case 10: /*MULUHi*/
case 11: /*MULSHi*/
- HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL);
+ HAS_OPTION(XTENSA_OPTION_32_BIT_IMUL_HIGH);
{
TCGv_i64 r = tcg_temp_new_i64();
TCGv_i64 s = tcg_temp_new_i64();
if (RSR_SR >= 64) {
gen_check_privilege(dc);
}
+ gen_window_check1(dc, RRR_T);
gen_rsr(dc, cpu_R[RRR_T], RSR_SR);
if (!sregnames[RSR_SR]) {
TBD();
if (RSR_SR >= 64) {
gen_check_privilege(dc);
}
+ gen_window_check1(dc, RRR_T);
gen_wsr(dc, RSR_SR, cpu_R[RRR_T]);
if (!sregnames[RSR_SR]) {
TBD();
break;
case 2: /*SEXTu*/
- HAS_OPTION(XTENSA_OPTION_MISC_OP);
+ HAS_OPTION(XTENSA_OPTION_MISC_OP_SEXT);
+ gen_window_check2(dc, RRR_R, RRR_S);
{
int shift = 24 - RRR_T;
break;
case 3: /*CLAMPSu*/
- HAS_OPTION(XTENSA_OPTION_MISC_OP);
+ HAS_OPTION(XTENSA_OPTION_MISC_OP_CLAMPS);
+ gen_window_check2(dc, RRR_R, RRR_S);
{
TCGv_i32 tmp1 = tcg_temp_new_i32();
TCGv_i32 tmp2 = tcg_temp_new_i32();
case 5: /*MAXu*/
case 6: /*MINUu*/
case 7: /*MAXUu*/
- HAS_OPTION(XTENSA_OPTION_MISC_OP);
+ HAS_OPTION(XTENSA_OPTION_MISC_OP_MINMAX);
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
static const TCGCond cond[] = {
TCG_COND_LE,
case 9: /*MOVNEZ*/
case 10: /*MOVLTZ*/
case 11: /*MOVGEZ*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
static const TCGCond cond[] = {
TCG_COND_NE,
break;
case 12: /*MOVFp*/
- HAS_OPTION(XTENSA_OPTION_BOOLEAN);
- TBD();
- break;
-
case 13: /*MOVTp*/
HAS_OPTION(XTENSA_OPTION_BOOLEAN);
- TBD();
+ gen_window_check2(dc, RRR_R, RRR_S);
+ {
+ int label = gen_new_label();
+ TCGv_i32 tmp = tcg_temp_new_i32();
+
+ tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRR_T);
+ tcg_gen_brcondi_i32(
+ OP2 & 1 ? TCG_COND_EQ : TCG_COND_NE,
+ tmp, 0, label);
+ tcg_gen_mov_i32(cpu_R[RRR_R], cpu_R[RRR_S]);
+ gen_set_label(label);
+ tcg_temp_free(tmp);
+ }
break;
case 14: /*RUR*/
+ gen_window_check1(dc, RRR_R);
{
int st = (RRR_S << 4) + RRR_T;
if (uregnames[st]) {
break;
case 15: /*WUR*/
+ gen_window_check1(dc, RRR_T);
{
if (uregnames[RSR_SR]) {
tcg_gen_mov_i32(cpu_UR[RSR_SR], cpu_R[RRR_T]);
case 4: /*EXTUI*/
case 5:
+ gen_window_check2(dc, RRR_R, RRR_T);
{
int shiftimm = RRR_S | (OP1 << 4);
int maskimm = (1 << (OP2 + 1)) - 1;
break;
case 9: /*LSC4*/
- TBD();
+ gen_window_check2(dc, RRR_S, RRR_T);
+ switch (OP2) {
+ case 0: /*L32E*/
+ HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ gen_check_privilege(dc);
+ {
+ TCGv_i32 addr = tcg_temp_new_i32();
+ tcg_gen_addi_i32(addr, cpu_R[RRR_S],
+ (0xffffffc0 | (RRR_R << 2)));
+ tcg_gen_qemu_ld32u(cpu_R[RRR_T], addr, dc->ring);
+ tcg_temp_free(addr);
+ }
+ break;
+
+ case 4: /*S32E*/
+ HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ gen_check_privilege(dc);
+ {
+ TCGv_i32 addr = tcg_temp_new_i32();
+ tcg_gen_addi_i32(addr, cpu_R[RRR_S],
+ (0xffffffc0 | (RRR_R << 2)));
+ tcg_gen_qemu_st32(cpu_R[RRR_T], addr, dc->ring);
+ tcg_temp_free(addr);
+ }
+ break;
+
+ default:
+ RESERVED();
+ break;
+ }
break;
case 10: /*FP0*/
break;
case 1: /*L32R*/
+ gen_window_check1(dc, RRR_T);
{
TCGv_i32 tmp = tcg_const_i32(
- (0xfffc0000 | (RI16_IMM16 << 2)) +
- ((dc->pc + 3) & ~3));
-
- /* no ext L32R */
+ ((dc->tb->flags & XTENSA_TBFLAG_LITBASE) ?
+ 0 : ((dc->pc + 3) & ~3)) +
+ (0xfffc0000 | (RI16_IMM16 << 2)));
+ if (dc->tb->flags & XTENSA_TBFLAG_LITBASE) {
+ tcg_gen_add_i32(tmp, tmp, dc->litbase);
+ }
tcg_gen_qemu_ld32u(cpu_R[RRR_T], tmp, dc->cring);
tcg_temp_free(tmp);
}
case 2: /*LSAI*/
#define gen_load_store(type, shift) do { \
TCGv_i32 addr = tcg_temp_new_i32(); \
+ gen_window_check2(dc, RRI8_S, RRI8_T); \
tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << shift); \
+ if (shift) { \
+ gen_load_store_alignment(dc, shift, addr, false); \
+ } \
tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \
tcg_temp_free(addr); \
} while (0)
case 9: /*L16SI*/
gen_load_store(ld16s, 1);
break;
+#undef gen_load_store
case 10: /*MOVI*/
+ gen_window_check1(dc, RRI8_T);
tcg_gen_movi_i32(cpu_R[RRI8_T],
RRI8_IMM8 | (RRI8_S << 8) |
((RRI8_S & 0x8) ? 0xfffff000 : 0));
break;
+#define gen_load_store_no_hw_align(type) do { \
+ TCGv_i32 addr = tcg_temp_local_new_i32(); \
+ gen_window_check2(dc, RRI8_S, RRI8_T); \
+ tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2); \
+ gen_load_store_alignment(dc, 2, addr, true); \
+ tcg_gen_qemu_##type(cpu_R[RRI8_T], addr, dc->cring); \
+ tcg_temp_free(addr); \
+ } while (0)
+
case 11: /*L32AIy*/
HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);
- gen_load_store(ld32u, 2); /*TODO acquire?*/
+ gen_load_store_no_hw_align(ld32u); /*TODO acquire?*/
break;
case 12: /*ADDI*/
+ gen_window_check2(dc, RRI8_S, RRI8_T);
tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE);
break;
case 13: /*ADDMI*/
+ gen_window_check2(dc, RRI8_S, RRI8_T);
tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE << 8);
break;
case 14: /*S32C1Iy*/
- HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);
+ HAS_OPTION(XTENSA_OPTION_CONDITIONAL_STORE);
+ gen_window_check2(dc, RRI8_S, RRI8_T);
{
int label = gen_new_label();
TCGv_i32 tmp = tcg_temp_local_new_i32();
tcg_gen_mov_i32(tmp, cpu_R[RRI8_T]);
tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << 2);
+ gen_load_store_alignment(dc, 2, addr, true);
tcg_gen_qemu_ld32u(cpu_R[RRI8_T], addr, dc->cring);
tcg_gen_brcond_i32(TCG_COND_NE, cpu_R[RRI8_T],
cpu_SR[SCOMPARE1], label);
case 15: /*S32RIy*/
HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);
- gen_load_store(st32, 2); /*TODO release?*/
+ gen_load_store_no_hw_align(st32); /*TODO release?*/
break;
+#undef gen_load_store_no_hw_align
default: /*reserved*/
RESERVED();
break;
}
break;
-#undef gen_load_store
case 3: /*LSCIp*/
HAS_OPTION(XTENSA_OPTION_COPROCESSOR);
case 4: /*MAC16d*/
HAS_OPTION(XTENSA_OPTION_MAC16);
- TBD();
+ {
+ enum {
+ MAC16_UMUL = 0x0,
+ MAC16_MUL = 0x4,
+ MAC16_MULA = 0x8,
+ MAC16_MULS = 0xc,
+ MAC16_NONE = 0xf,
+ } op = OP1 & 0xc;
+ bool is_m1_sr = (OP2 & 0x3) == 2;
+ bool is_m2_sr = (OP2 & 0xc) == 0;
+ uint32_t ld_offset = 0;
+
+ if (OP2 > 9) {
+ RESERVED();
+ }
+
+ switch (OP2 & 2) {
+ case 0: /*MACI?/MACC?*/
+ is_m1_sr = true;
+ ld_offset = (OP2 & 1) ? -4 : 4;
+
+ if (OP2 >= 8) { /*MACI/MACC*/
+ if (OP1 == 0) { /*LDINC/LDDEC*/
+ op = MAC16_NONE;
+ } else {
+ RESERVED();
+ }
+ } else if (op != MAC16_MULA) { /*MULA.*.*.LDINC/LDDEC*/
+ RESERVED();
+ }
+ break;
+
+ case 2: /*MACD?/MACA?*/
+ if (op == MAC16_UMUL && OP2 != 7) { /*UMUL only in MACAA*/
+ RESERVED();
+ }
+ break;
+ }
+
+ if (op != MAC16_NONE) {
+ if (!is_m1_sr) {
+ gen_window_check1(dc, RRR_S);
+ }
+ if (!is_m2_sr) {
+ gen_window_check1(dc, RRR_T);
+ }
+ }
+
+ {
+ TCGv_i32 vaddr = tcg_temp_new_i32();
+ TCGv_i32 mem32 = tcg_temp_new_i32();
+
+ if (ld_offset) {
+ gen_window_check1(dc, RRR_S);
+ tcg_gen_addi_i32(vaddr, cpu_R[RRR_S], ld_offset);
+ gen_load_store_alignment(dc, 2, vaddr, false);
+ tcg_gen_qemu_ld32u(mem32, vaddr, dc->cring);
+ }
+ if (op != MAC16_NONE) {
+ TCGv_i32 m1 = gen_mac16_m(
+ is_m1_sr ? cpu_SR[MR + RRR_X] : cpu_R[RRR_S],
+ OP1 & 1, op == MAC16_UMUL);
+ TCGv_i32 m2 = gen_mac16_m(
+ is_m2_sr ? cpu_SR[MR + 2 + RRR_Y] : cpu_R[RRR_T],
+ OP1 & 2, op == MAC16_UMUL);
+
+ if (op == MAC16_MUL || op == MAC16_UMUL) {
+ tcg_gen_mul_i32(cpu_SR[ACCLO], m1, m2);
+ if (op == MAC16_UMUL) {
+ tcg_gen_movi_i32(cpu_SR[ACCHI], 0);
+ } else {
+ tcg_gen_sari_i32(cpu_SR[ACCHI], cpu_SR[ACCLO], 31);
+ }
+ } else {
+ TCGv_i32 res = tcg_temp_new_i32();
+ TCGv_i64 res64 = tcg_temp_new_i64();
+ TCGv_i64 tmp = tcg_temp_new_i64();
+
+ tcg_gen_mul_i32(res, m1, m2);
+ tcg_gen_ext_i32_i64(res64, res);
+ tcg_gen_concat_i32_i64(tmp,
+ cpu_SR[ACCLO], cpu_SR[ACCHI]);
+ if (op == MAC16_MULA) {
+ tcg_gen_add_i64(tmp, tmp, res64);
+ } else {
+ tcg_gen_sub_i64(tmp, tmp, res64);
+ }
+ tcg_gen_trunc_i64_i32(cpu_SR[ACCLO], tmp);
+ tcg_gen_shri_i64(tmp, tmp, 32);
+ tcg_gen_trunc_i64_i32(cpu_SR[ACCHI], tmp);
+ tcg_gen_ext8s_i32(cpu_SR[ACCHI], cpu_SR[ACCHI]);
+
+ tcg_temp_free(res);
+ tcg_temp_free_i64(res64);
+ tcg_temp_free_i64(tmp);
+ }
+ tcg_temp_free(m1);
+ tcg_temp_free(m2);
+ }
+ if (ld_offset) {
+ tcg_gen_mov_i32(cpu_R[RRR_S], vaddr);
+ tcg_gen_mov_i32(cpu_SR[MR + RRR_W], mem32);
+ }
+ tcg_temp_free(vaddr);
+ tcg_temp_free(mem32);
+ }
+ }
break;
case 5: /*CALLN*/
case 2: /*CALL8w*/
case 3: /*CALL12w*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
- TBD();
+ gen_window_check1(dc, CALL_N << 2);
+ gen_callwi(dc, CALL_N,
+ (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0);
break;
}
break;
break;
case 1: /*BZ*/
+ gen_window_check1(dc, BRI12_S);
{
static const TCGCond cond[] = {
TCG_COND_EQ, /*BEQZ*/
break;
case 2: /*BI0*/
+ gen_window_check1(dc, BRI8_S);
{
static const TCGCond cond[] = {
TCG_COND_EQ, /*BEQI*/
switch (BRI8_M) {
case 0: /*ENTRYw*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
- TBD();
+ {
+ TCGv_i32 pc = tcg_const_i32(dc->pc);
+ TCGv_i32 s = tcg_const_i32(BRI12_S);
+ TCGv_i32 imm = tcg_const_i32(BRI12_IMM12);
+ gen_advance_ccount(dc);
+ gen_helper_entry(cpu_env, pc, s, imm);
+ tcg_temp_free(imm);
+ tcg_temp_free(s);
+ tcg_temp_free(pc);
+ reset_used_window(dc);
+ }
break;
case 1: /*B1*/
switch (BRI8_R) {
case 0: /*BFp*/
- HAS_OPTION(XTENSA_OPTION_BOOLEAN);
- TBD();
- break;
-
case 1: /*BTp*/
HAS_OPTION(XTENSA_OPTION_BOOLEAN);
- TBD();
+ {
+ TCGv_i32 tmp = tcg_temp_new_i32();
+ tcg_gen_andi_i32(tmp, cpu_SR[BR], 1 << RRI8_S);
+ gen_brcondi(dc,
+ BRI8_R == 1 ? TCG_COND_NE : TCG_COND_EQ,
+ tmp, 0, 4 + RRI8_IMM8_SE);
+ tcg_temp_free(tmp);
+ }
break;
case 8: /*LOOP*/
- TBD();
- break;
-
case 9: /*LOOPNEZ*/
- TBD();
- break;
-
case 10: /*LOOPGTZ*/
- TBD();
+ HAS_OPTION(XTENSA_OPTION_LOOP);
+ gen_window_check1(dc, RRI8_S);
+ {
+ uint32_t lend = dc->pc + RRI8_IMM8 + 4;
+ TCGv_i32 tmp = tcg_const_i32(lend);
+
+ tcg_gen_subi_i32(cpu_SR[LCOUNT], cpu_R[RRI8_S], 1);
+ tcg_gen_movi_i32(cpu_SR[LBEG], dc->next_pc);
+ gen_helper_wsr_lend(cpu_env, tmp);
+ tcg_temp_free(tmp);
+
+ if (BRI8_R > 8) {
+ int label = gen_new_label();
+ tcg_gen_brcondi_i32(
+ BRI8_R == 9 ? TCG_COND_NE : TCG_COND_GT,
+ cpu_R[RRI8_S], 0, label);
+ gen_jumpi(dc, lend, 1);
+ gen_set_label(label);
+ }
+
+ gen_jumpi(dc, dc->next_pc, 0);
+ }
break;
default: /*reserved*/
case 2: /*BLTUI*/
case 3: /*BGEUI*/
+ gen_window_check1(dc, BRI8_S);
gen_brcondi(dc, BRI8_M == 2 ? TCG_COND_LTU : TCG_COND_GEU,
cpu_R[BRI8_S], B4CONSTU[BRI8_R], 4 + BRI8_IMM8_SE);
break;
switch (RRI8_R & 7) {
case 0: /*BNONE*/ /*BANY*/
+ gen_window_check2(dc, RRI8_S, RRI8_T);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]);
case 1: /*BEQ*/ /*BNE*/
case 2: /*BLT*/ /*BGE*/
case 3: /*BLTU*/ /*BGEU*/
+ gen_window_check2(dc, RRI8_S, RRI8_T);
{
static const TCGCond cond[] = {
[1] = TCG_COND_EQ,
break;
case 4: /*BALL*/ /*BNALL*/
+ gen_window_check2(dc, RRI8_S, RRI8_T);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]);
break;
case 5: /*BBC*/ /*BBS*/
+ gen_window_check2(dc, RRI8_S, RRI8_T);
{
TCGv_i32 bit = tcg_const_i32(1);
TCGv_i32 tmp = tcg_temp_new_i32();
case 6: /*BBCI*/ /*BBSI*/
case 7:
+ gen_window_check1(dc, RRI8_S);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_andi_i32(tmp, cpu_R[RRI8_S],
#define gen_narrow_load_store(type) do { \
TCGv_i32 addr = tcg_temp_new_i32(); \
+ gen_window_check2(dc, RRRN_S, RRRN_T); \
tcg_gen_addi_i32(addr, cpu_R[RRRN_S], RRRN_R << 2); \
+ gen_load_store_alignment(dc, 2, addr, false); \
tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, dc->cring); \
tcg_temp_free(addr); \
} while (0)
#undef gen_narrow_load_store
case 10: /*ADD.Nn*/
+ gen_window_check3(dc, RRRN_R, RRRN_S, RRRN_T);
tcg_gen_add_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], cpu_R[RRRN_T]);
break;
case 11: /*ADDI.Nn*/
+ gen_window_check2(dc, RRRN_R, RRRN_S);
tcg_gen_addi_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], RRRN_T ? RRRN_T : -1);
break;
case 12: /*ST2n*/
+ gen_window_check1(dc, RRRN_S);
if (RRRN_T < 8) { /*MOVI.Nn*/
tcg_gen_movi_i32(cpu_R[RRRN_S],
RRRN_R | (RRRN_T << 4) |
case 13: /*ST3n*/
switch (RRRN_R) {
case 0: /*MOV.Nn*/
+ gen_window_check2(dc, RRRN_S, RRRN_T);
tcg_gen_mov_i32(cpu_R[RRRN_T], cpu_R[RRRN_S]);
break;
case 1: /*RETW.Nn*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
- TBD();
+ {
+ TCGv_i32 tmp = tcg_const_i32(dc->pc);
+ gen_advance_ccount(dc);
+ gen_helper_retw(tmp, cpu_env, tmp);
+ gen_jump(dc, tmp);
+ tcg_temp_free(tmp);
+ }
break;
case 2: /*BREAK.Nn*/
- TBD();
+ HAS_OPTION(XTENSA_OPTION_DEBUG);
+ if (dc->debug) {
+ gen_debug_exception(dc, DEBUGCAUSE_BN);
+ }
break;
case 3: /*NOP.Nn*/
break;
}
+ gen_check_loop_end(dc, 0);
dc->pc = dc->next_pc;
+
return;
invalid_opcode:
qemu_log("INVALID(pc = %08x)\n", dc->pc);
- dc->pc = dc->next_pc;
+ gen_exception_cause(dc, ILLEGAL_INSTRUCTION_CAUSE);
#undef HAS_OPTION
}
-static void check_breakpoint(CPUState *env, DisasContext *dc)
+static void check_breakpoint(CPUXtensaState *env, DisasContext *dc)
{
CPUBreakpoint *bp;
QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
if (bp->pc == dc->pc) {
tcg_gen_movi_i32(cpu_pc, dc->pc);
- gen_exception(EXCP_DEBUG);
+ gen_exception(dc, EXCP_DEBUG);
dc->is_jmp = DISAS_UPDATE;
}
}
}
}
+static void gen_ibreak_check(CPUXtensaState *env, DisasContext *dc)
+{
+ unsigned i;
+
+ for (i = 0; i < dc->config->nibreak; ++i) {
+ if ((env->sregs[IBREAKENABLE] & (1 << i)) &&
+ env->sregs[IBREAKA + i] == dc->pc) {
+ gen_debug_exception(dc, DEBUGCAUSE_IB);
+ break;
+ }
+ }
+}
+
static void gen_intermediate_code_internal(
- CPUState *env, TranslationBlock *tb, int search_pc)
+ CPUXtensaState *env, TranslationBlock *tb, int search_pc)
{
DisasContext dc;
int insn_count = 0;
dc.pc = pc_start;
dc.ring = tb->flags & XTENSA_TBFLAG_RING_MASK;
dc.cring = (tb->flags & XTENSA_TBFLAG_EXCM) ? 0 : dc.ring;
+ dc.lbeg = env->sregs[LBEG];
+ dc.lend = env->sregs[LEND];
dc.is_jmp = DISAS_NEXT;
+ dc.ccount_delta = 0;
+ dc.debug = tb->flags & XTENSA_TBFLAG_DEBUG;
+ dc.icount = tb->flags & XTENSA_TBFLAG_ICOUNT;
+ init_litbase(&dc);
init_sar_tracker(&dc);
+ reset_used_window(&dc);
+ if (dc.icount) {
+ dc.next_icount = tcg_temp_local_new_i32();
+ }
gen_icount_start();
if (env->singlestep_enabled && env->exception_taken) {
env->exception_taken = 0;
tcg_gen_movi_i32(cpu_pc, dc.pc);
- gen_exception(EXCP_DEBUG);
+ gen_exception(&dc, EXCP_DEBUG);
}
do {
tcg_gen_debug_insn_start(dc.pc);
}
+ ++dc.ccount_delta;
+
+ if (insn_count + 1 == max_insns && (tb->cflags & CF_LAST_IO)) {
+ gen_io_start();
+ }
+
+ if (dc.icount) {
+ int label = gen_new_label();
+
+ tcg_gen_addi_i32(dc.next_icount, cpu_SR[ICOUNT], 1);
+ tcg_gen_brcondi_i32(TCG_COND_NE, dc.next_icount, 0, label);
+ tcg_gen_mov_i32(dc.next_icount, cpu_SR[ICOUNT]);
+ if (dc.debug) {
+ gen_debug_exception(&dc, DEBUGCAUSE_IC);
+ }
+ gen_set_label(label);
+ }
+
+ if (dc.debug) {
+ gen_ibreak_check(env, &dc);
+ }
+
disas_xtensa_insn(&dc);
++insn_count;
+ if (dc.icount) {
+ tcg_gen_mov_i32(cpu_SR[ICOUNT], dc.next_icount);
+ }
if (env->singlestep_enabled) {
tcg_gen_movi_i32(cpu_pc, dc.pc);
- gen_exception(EXCP_DEBUG);
+ gen_exception(&dc, EXCP_DEBUG);
break;
}
} while (dc.is_jmp == DISAS_NEXT &&
dc.pc < next_page_start &&
gen_opc_ptr < gen_opc_end);
+ reset_litbase(&dc);
reset_sar_tracker(&dc);
+ if (dc.icount) {
+ tcg_temp_free(dc.next_icount);
+ }
+
+ if (tb->cflags & CF_LAST_IO) {
+ gen_io_end();
+ }
if (dc.is_jmp == DISAS_NEXT) {
gen_jumpi(&dc, dc.pc, 0);
}
}
-void gen_intermediate_code(CPUState *env, TranslationBlock *tb)
+void gen_intermediate_code(CPUXtensaState *env, TranslationBlock *tb)
{
gen_intermediate_code_internal(env, tb, 0);
}
-void gen_intermediate_code_pc(CPUState *env, TranslationBlock *tb)
+void gen_intermediate_code_pc(CPUXtensaState *env, TranslationBlock *tb)
{
gen_intermediate_code_internal(env, tb, 1);
}
-void cpu_dump_state(CPUState *env, FILE *f, fprintf_function cpu_fprintf,
+void cpu_dump_state(CPUXtensaState *env, FILE *f, fprintf_function cpu_fprintf,
int flags)
{
int i, j;
cpu_fprintf(f, "A%02d=%08x%c", i, env->regs[i],
(i % 4) == 3 ? '\n' : ' ');
}
+
+ cpu_fprintf(f, "\n");
+
+ for (i = 0; i < env->config->nareg; ++i) {
+ cpu_fprintf(f, "AR%02d=%08x%c", i, env->phys_regs[i],
+ (i % 4) == 3 ? '\n' : ' ');
+ }
}
-void restore_state_to_opc(CPUState *env, TranslationBlock *tb, int pc_pos)
+void restore_state_to_opc(CPUXtensaState *env, TranslationBlock *tb, int pc_pos)
{
env->pc = gen_opc_pc[pc_pos];
}
projects / qemu.git / blobdiff