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| author | Bastian Koppelmann <kbastian@mail.uni-paderborn.de> | 2016-02-19 14:43:43 +0100 |
|---|---|---|
| committer | Bastian Koppelmann <kbastian@mail.uni-paderborn.de> | 2016-02-25 12:54:42 +0100 |
| commit | 518d7fd2a098730669c0a0707c031dcfe52ece9a (patch) | |
| tree | 08aa9ba407f551de623e81123c51c13e808e5d26 /target-tricore/translate.c | |
| parent | 5dc1fbae707513f9664aa88940a2cd52b064cda2 (diff) | |
| download | qemu-518d7fd2a098730669c0a0707c031dcfe52ece9a.tar.gz | |
target-tricore: Add trap handling & SOVF/OVF traps
Add the infrastructure needed to generate and handle traps and
implement the generation of SOVF and OVF traps.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <1455889426-1923-2-git-send-email-kbastian@mail.uni-paderborn.de>
Diffstat (limited to 'target-tricore/translate.c')
| -rw-r--r-- | target-tricore/translate.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/target-tricore/translate.c b/target-tricore/translate.c index a70fdf741e..c7a3c77b39 100644 --- a/target-tricore/translate.c +++ b/target-tricore/translate.c @@ -3244,6 +3244,19 @@ static inline void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest) } } +static void generate_trap(DisasContext *ctx, int class, int tin) +{ + TCGv_i32 classtemp = tcg_const_i32(class); + TCGv_i32 tintemp = tcg_const_i32(tin); + + gen_save_pc(ctx->pc); + gen_helper_raise_exception_sync(cpu_env, classtemp, tintemp); + ctx->bstate = BS_EXCP; + + tcg_temp_free(classtemp); + tcg_temp_free(tintemp); +} + static inline void gen_branch_cond(DisasContext *ctx, TCGCond cond, TCGv r1, TCGv r2, int16_t address) { @@ -7910,10 +7923,16 @@ static void decode_sys_interrupts(CPUTriCoreState *env, DisasContext *ctx) } /* else raise illegal opcode trap */ break; case OPC2_32_SYS_TRAPSV: - /* TODO: raise sticky overflow trap */ + l1 = gen_new_label(); + tcg_gen_brcondi_tl(TCG_COND_GE, cpu_PSW_SV, 0, l1); + generate_trap(ctx, TRAPC_ASSERT, TIN5_SOVF); + gen_set_label(l1); break; case OPC2_32_SYS_TRAPV: - /* TODO: raise overflow trap */ + l1 = gen_new_label(); + tcg_gen_brcondi_tl(TCG_COND_GE, cpu_PSW_V, 0, l1); + generate_trap(ctx, TRAPC_ASSERT, TIN5_OVF); + gen_set_label(l1); break; } } |