From 4a2ba232843ac4197c586c1f0f0adbb1eb02fe34 Mon Sep 17 00:00:00 2001 From: Fabien Chouteau Date: Mon, 24 Jan 2011 12:56:56 +0100 Subject: [PATCH] SPARC: Add asr17 register support This register is activated by CPU_FEATURE_ASR17 in the feature field. Signed-off-by: Fabien Chouteau Signed-off-by: Blue Swirl --- target-sparc/cpu.h | 1 + target-sparc/helper.c | 3 ++- target-sparc/translate.c | 11 +++++++++++ 3 files changed, 14 insertions(+), 1 deletion(-) diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h index 5c50d9e535..6f5990b130 100644 --- a/target-sparc/cpu.h +++ b/target-sparc/cpu.h @@ -267,6 +267,7 @@ typedef struct sparc_def_t { #define CPU_FEATURE_CMT (1 << 12) #define CPU_FEATURE_GL (1 << 13) #define CPU_FEATURE_TA0_SHUTDOWN (1 << 14) /* Shutdown on "ta 0x0" */ +#define CPU_FEATURE_ASR17 (1 << 15) #ifndef TARGET_SPARC64 #define CPU_DEFAULT_FEATURES (CPU_FEATURE_FLOAT | CPU_FEATURE_SWAP | \ CPU_FEATURE_MUL | CPU_FEATURE_DIV | \ diff --git a/target-sparc/helper.c b/target-sparc/helper.c index ec6ac271f1..2f3d1e61f3 100644 --- a/target-sparc/helper.c +++ b/target-sparc/helper.c @@ -1288,7 +1288,8 @@ static const sparc_def_t sparc_defs[] = { .mmu_sfsr_mask = 0xffffffff, .mmu_trcr_mask = 0xffffffff, .nwindows = 8, - .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN, + .features = CPU_DEFAULT_FEATURES | CPU_FEATURE_TA0_SHUTDOWN | + CPU_FEATURE_ASR17, }, #endif }; diff --git a/target-sparc/translate.c b/target-sparc/translate.c index dff0f19f70..e26462eef5 100644 --- a/target-sparc/translate.c +++ b/target-sparc/translate.c @@ -2067,6 +2067,17 @@ static void disas_sparc_insn(DisasContext * dc) case 0x10 ... 0x1f: /* implementation-dependent in the SPARCv8 manual, rdy on the microSPARC II */ + /* Read Asr17 */ + if (rs1 == 0x11 && dc->def->features & CPU_FEATURE_ASR17) { + TCGv r_const; + + /* Read Asr17 for a Leon3 monoprocessor */ + r_const = tcg_const_tl((1 << 8) + | (dc->def->nwindows - 1)); + gen_movl_TN_reg(rd, r_const); + tcg_temp_free(r_const); + break; + } #endif gen_movl_TN_reg(rd, cpu_y); break; -- 2.11.4.GIT