diff options
| author |   Blue Swirl <blauwirbel@gmail.com> | 2012-03-17 12:59:41 +0000 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2012-03-17 12:59:41 +0000 |
| commit | 6344d922a1182d58b47566dfc0390782305d264b (patch) | |
| tree | 59146f4825631dbba8dd0fa7beabb67cb5cd01d0 | |
| parent | 6b41fecf2e9e39fee54de2706b1a1727906513fd (diff) | |
| parent | d9e028c1d9c2a8d2ad42f2aeb502b71086a52d4d (diff) | |
Merge branch 'target-arm.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm
* 'target-arm.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm:
target-arm: Decode SETEND correctly in Thumb
target-arm: Clear IT bits when taking exceptions in v7M
target-arm: Fix typo in ARM946 cp15 c5 handling
| -rw-r--r-- | target-arm/helper.c | 5 | ||||
| -rw-r--r-- | target-arm/translate.c | 63 |
2 files changed, 43 insertions, 25 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c index 8a08db8d5..1314f23d5 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -877,7 +877,8 @@ static void do_interrupt_v7m(CPUARMState *env) v7m_push(env, env->regs[1]); v7m_push(env, env->regs[0]); switch_v7m_sp(env, 0); - env->uncached_cpsr &= ~CPSR_IT; + /* Clear IT bits */ + env->condexec_bits = 0; env->regs[14] = lr; addr = ldl_phys(env->v7m.vecbase + env->v7m.exception * 4); env->regs[15] = addr & 0xfffffffe; @@ -2025,7 +2026,7 @@ uint32_t HELPER(get_cp15)(CPUARMState *env, uint32_t insn) return env->cp15.c5_data; case 1: if (arm_feature(env, ARM_FEATURE_MPU)) - return simple_mpu_ap_bits(env->cp15.c5_data); + return simple_mpu_ap_bits(env->cp15.c5_insn); return env->cp15.c5_insn; case 2: if (!arm_feature(env, ARM_FEATURE_MPU)) diff --git a/target-arm/translate.c b/target-arm/translate.c index 2709010f4..81725d168 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -9704,32 +9704,49 @@ static void disas_thumb_insn(CPUARMState *env, DisasContext *s) store_reg(s, rd, tmp); break; - case 6: /* cps */ - ARCH(6); - if (IS_USER(s)) + case 6: + switch ((insn >> 5) & 7) { + case 2: + /* setend */ + ARCH(6); + if (insn & (1 << 3)) { + /* BE8 mode not implemented. */ + goto illegal_op; + } break; - if (IS_M(env)) { - tmp = tcg_const_i32((insn & (1 << 4)) != 0); - /* FAULTMASK */ - if (insn & 1) { - addr = tcg_const_i32(19); - gen_helper_v7m_msr(cpu_env, addr, tmp); - tcg_temp_free_i32(addr); + case 3: + /* cps */ + ARCH(6); + if (IS_USER(s)) { + break; } - /* PRIMASK */ - if (insn & 2) { - addr = tcg_const_i32(16); - gen_helper_v7m_msr(cpu_env, addr, tmp); - tcg_temp_free_i32(addr); + if (IS_M(env)) { + tmp = tcg_const_i32((insn & (1 << 4)) != 0); + /* FAULTMASK */ + if (insn & 1) { + addr = tcg_const_i32(19); + gen_helper_v7m_msr(cpu_env, addr, tmp); + tcg_temp_free_i32(addr); + } + /* PRIMASK */ + if (insn & 2) { + addr = tcg_const_i32(16); + gen_helper_v7m_msr(cpu_env, addr, tmp); + tcg_temp_free_i32(addr); + } + tcg_temp_free_i32(tmp); + gen_lookup_tb(s); + } else { + if (insn & (1 << 4)) { + shift = CPSR_A | CPSR_I | CPSR_F; + } else { + shift = 0; + } + gen_set_psr_im(s, ((insn & 7) << 6), 0, shift); } - tcg_temp_free_i32(tmp); - gen_lookup_tb(s); - } else { - if (insn & (1 << 4)) - shift = CPSR_A | CPSR_I | CPSR_F; - else - shift = 0; - gen_set_psr_im(s, ((insn & 7) << 6), 0, shift); + break; + default: + goto undef; } break; |