diff options
Diffstat (limited to 'target-xtensa/translate.c')
| -rw-r--r-- | target-xtensa/translate.c | 145 |
1 files changed, 136 insertions, 9 deletions
diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c index bc04a10..7a2e07f 100644 --- a/target-xtensa/translate.c +++ b/target-xtensa/translate.c @@ -67,6 +67,8 @@ static TCGv_i32 cpu_UR[256]; static const char * const sregnames[256] = { [SAR] = "SAR", [SCOMPARE1] = "SCOMPARE1", + [WINDOW_BASE] = "WINDOW_BASE", + [WINDOW_START] = "WINDOW_START", [EPC1] = "EPC1", [DEPC] = "DEPC", [EXCSAVE1] = "EXCSAVE1", @@ -217,6 +219,34 @@ static void gen_jumpi(DisasContext *dc, uint32_t dest, int 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 void gen_brcond(DisasContext *dc, TCGCond cond, TCGv_i32 t0, TCGv_i32 t1, uint32_t offset) { @@ -263,6 +293,11 @@ static void gen_wsr_sar(DisasContext *dc, uint32_t sr, TCGv_i32 s) dc->sar_m32_5bit = false; } +static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v) +{ + gen_helper_wsr_windowbase(v); +} + static void gen_wsr_ps(DisasContext *dc, uint32_t sr, TCGv_i32 v) { uint32_t mask = PS_WOE | PS_CALLINC | PS_OWB | @@ -281,6 +316,7 @@ 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) = { [SAR] = gen_wsr_sar, + [WINDOW_BASE] = gen_wsr_windowbase, [PS] = gen_wsr_ps, }; @@ -429,7 +465,12 @@ static void disas_xtensa_insn(DisasContext *dc) case 1: /*RETWw*/ HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - TBD(); + { + TCGv_i32 tmp = tcg_const_i32(dc->pc); + gen_helper_retw(tmp, tmp); + gen_jump(dc, tmp); + tcg_temp_free(tmp); + } break; case 3: /*reserved*/ @@ -454,7 +495,13 @@ static void disas_xtensa_insn(DisasContext *dc) 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; @@ -463,7 +510,12 @@ static void disas_xtensa_insn(DisasContext *dc) case 1: /*MOVSPw*/ HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - TBD(); + { + TCGv_i32 pc = tcg_const_i32(dc->pc); + gen_helper_movsp(pc); + tcg_gen_mov_i32(cpu_R[RRR_T], cpu_R[RRR_S]); + tcg_temp_free(pc); + } break; case 2: /*SYNC*/ @@ -523,7 +575,27 @@ static void disas_xtensa_insn(DisasContext *dc) 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(); + gen_jump(dc, cpu_SR[EPC1]); + + tcg_temp_free(tmp); + } break; default: /*reserved*/ @@ -670,7 +742,13 @@ static void disas_xtensa_insn(DisasContext *dc) 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(tmp); + tcg_temp_free(tmp); + } break; case 14: /*NSAu*/ @@ -1129,7 +1207,35 @@ static void disas_xtensa_insn(DisasContext *dc) break; case 9: /*LSC4*/ - TBD(); + 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*/ @@ -1368,7 +1474,8 @@ static void disas_xtensa_insn(DisasContext *dc) case 2: /*CALL8w*/ case 3: /*CALL12w*/ HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - TBD(); + gen_callwi(dc, CALL_N, + (dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0); break; } break; @@ -1411,7 +1518,15 @@ static void disas_xtensa_insn(DisasContext *dc) 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_helper_entry(pc, s, imm); + tcg_temp_free(imm); + tcg_temp_free(s); + tcg_temp_free(pc); + } break; case 1: /*B1*/ @@ -1576,7 +1691,12 @@ static void disas_xtensa_insn(DisasContext *dc) case 1: /*RETW.Nn*/ HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER); - TBD(); + { + TCGv_i32 tmp = tcg_const_i32(dc->pc); + gen_helper_retw(tmp, tmp); + gen_jump(dc, tmp); + tcg_temp_free(tmp); + } break; case 2: /*BREAK.Nn*/ @@ -1750,6 +1870,13 @@ void cpu_dump_state(CPUState *env, FILE *f, fprintf_function cpu_fprintf, 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) |
