diff options
Diffstat (limited to 'target-arm')
| -rw-r--r-- | target-arm/translate.c | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c index c2accc8506..3a41ca29f0 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -5749,7 +5749,7 @@ static void disas_arm_insn(CPUState * env, DisasContext *s) } } else if ((insn & 0x0e5fffe0) == 0x084d0500) { /* srs */ - uint32_t offset; + int32_t offset; if (IS_USER(s)) goto illegal_op; ARCH(6); @@ -5763,8 +5763,8 @@ static void disas_arm_insn(CPUState * env, DisasContext *s) i = (insn >> 23) & 3; switch (i) { case 0: offset = -4; break; /* DA */ - case 1: offset = -8; break; /* DB */ - case 2: offset = 0; break; /* IA */ + case 1: offset = 0; break; /* IA */ + case 2: offset = -8; break; /* DB */ case 3: offset = 4; break; /* IB */ default: abort(); } @@ -5772,32 +5772,32 @@ static void disas_arm_insn(CPUState * env, DisasContext *s) tcg_gen_addi_i32(addr, addr, offset); tmp = load_reg(s, 14); gen_st32(tmp, addr, 0); - tmp = new_tmp(); - gen_helper_cpsr_read(tmp); + tmp = load_cpu_field(spsr); tcg_gen_addi_i32(addr, addr, 4); gen_st32(tmp, addr, 0); if (insn & (1 << 21)) { /* Base writeback. */ switch (i) { case 0: offset = -8; break; - case 1: offset = -4; break; - case 2: offset = 4; break; + case 1: offset = 4; break; + case 2: offset = -4; break; case 3: offset = 0; break; default: abort(); } if (offset) - tcg_gen_addi_i32(addr, tmp, offset); + tcg_gen_addi_i32(addr, addr, offset); if (op1 == (env->uncached_cpsr & CPSR_M)) { - gen_movl_reg_T1(s, 13); + store_reg(s, 13, addr); } else { - gen_helper_set_r13_banked(cpu_env, tcg_const_i32(op1), cpu_T[1]); + gen_helper_set_r13_banked(cpu_env, tcg_const_i32(op1), addr); + dead_tmp(addr); } } else { dead_tmp(addr); } } else if ((insn & 0x0e5fffe0) == 0x081d0a00) { /* rfe */ - uint32_t offset; + int32_t offset; if (IS_USER(s)) goto illegal_op; ARCH(6); @@ -5806,8 +5806,8 @@ static void disas_arm_insn(CPUState * env, DisasContext *s) i = (insn >> 23) & 3; switch (i) { case 0: offset = -4; break; /* DA */ - case 1: offset = -8; break; /* DB */ - case 2: offset = 0; break; /* IA */ + case 1: offset = 0; break; /* IA */ + case 2: offset = -8; break; /* DB */ case 3: offset = 4; break; /* IB */ default: abort(); } @@ -5821,8 +5821,8 @@ static void disas_arm_insn(CPUState * env, DisasContext *s) /* Base writeback. */ switch (i) { case 0: offset = -8; break; - case 1: offset = -4; break; - case 2: offset = 4; break; + case 1: offset = 4; break; + case 2: offset = -4; break; case 3: offset = 0; break; default: abort(); } @@ -5833,6 +5833,7 @@ static void disas_arm_insn(CPUState * env, DisasContext *s) dead_tmp(addr); } gen_rfe(s, tmp, tmp2); + return; } else if ((insn & 0x0e000000) == 0x0a000000) { /* branch link and change to thumb (blx <offset>) */ int32_t offset; |