diff options
| author | pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162> | 2006-06-14 14:36:07 +0000 |
|---|---|---|
| committer | pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162> | 2006-06-14 14:36:07 +0000 |
| commit | 191f9a93f48ba8859bbbc8d5ac9b401568c2c6f4 (patch) | |
| tree | c4bcf1020cbb4ac4b41bd66044fc46ce8902ea15 /target-arm | |
| parent | d1e42c5c1e312320460509c5ab1e94fb17cb7515 (diff) | |
ARM postincrememnt addressing fix.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1970 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-arm')
| -rw-r--r-- | target-arm/translate.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c index c582d4beaa..fa7ad6086c 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -383,19 +383,23 @@ static inline void gen_add_data_offset(DisasContext *s, unsigned int insn) } } -static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn) +static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn, + int extra) { int val, rm; if (insn & (1 << 22)) { /* immediate */ val = (insn & 0xf) | ((insn >> 4) & 0xf0); + val += extra; if (!(insn & (1 << 23))) val = -val; if (val != 0) gen_op_addl_T1_im(val); } else { /* register */ + if (extra) + gen_op_addl_T1_im(extra); rm = (insn) & 0xf; gen_movl_T2_reg(s, rm); if (!(insn & (1 << 23))) @@ -1530,12 +1534,14 @@ static void disas_arm_insn(CPUState * env, DisasContext *s) } } } else { + int address_offset; /* Misc load/store */ rn = (insn >> 16) & 0xf; rd = (insn >> 12) & 0xf; gen_movl_T1_reg(s, rn); if (insn & (1 << 24)) - gen_add_datah_offset(s, insn); + gen_add_datah_offset(s, insn, 0); + address_offset = 0; if (insn & (1 << 20)) { /* load */ switch(sh) { @@ -1560,8 +1566,6 @@ static void disas_arm_insn(CPUState * env, DisasContext *s) gen_op_addl_T1_im(4); gen_movl_T0_reg(s, rd + 1); gen_ldst(stl, s); - if ((insn & (1 << 24)) || (insn & (1 << 20))) - gen_op_addl_T1_im(-4); } else { /* load */ gen_ldst(ldl, s); @@ -1569,18 +1573,19 @@ static void disas_arm_insn(CPUState * env, DisasContext *s) gen_op_addl_T1_im(4); gen_ldst(ldl, s); gen_movl_reg_T0(s, rd + 1); - if ((insn & (1 << 24)) || (insn & (1 << 20))) - gen_op_addl_T1_im(-4); } + address_offset = -4; } else { /* store */ gen_movl_T0_reg(s, rd); gen_ldst(stw, s); } if (!(insn & (1 << 24))) { - gen_add_datah_offset(s, insn); + gen_add_datah_offset(s, insn, address_offset); gen_movl_reg_T1(s, rn); } else if (insn & (1 << 21)) { + if (address_offset) + gen_op_addl_T1_im(address_offset); gen_movl_reg_T1(s, rn); } } |