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Re: [Qemu-devel] [PATCH 10/12] target-arm: A64: add support for conditio
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH 10/12] target-arm: A64: add support for conditional branches |
Date: |
Wed, 4 Dec 2013 00:22:17 +0000 |
On 4 December 2013 00:03, Richard Henderson <address@hidden> wrote:
> On 12/04/2013 10:51 AM, Peter Maydell wrote:
>> + if (cond < 0x0e) {
>> + /* genuinely conditional branches */
>> + int label_nomatch = gen_new_label();
>> + arm_gen_test_cc(cond ^ 1, label_nomatch);
>> + gen_goto_tb(s, 0, addr);
>> + gen_set_label(label_nomatch);
>> + gen_goto_tb(s, 1, s->pc);
>
> Why swap the condition with "^ 1"? You can just as easily swap the goto_tb.
> I
> realize the A32 translator does it this way, but need we continue?
Good point; will change.
thanks
-- PMM
- [Qemu-devel] [PATCH 00/12] target-arm: A64 decoder, foundation plus branches, Peter Maydell, 2013/12/03
- [Qemu-devel] [PATCH 05/12] target-arm: A64: add stubs for a64 specific helpers, Peter Maydell, 2013/12/03
- [Qemu-devel] [PATCH 10/12] target-arm: A64: add support for conditional branches, Peter Maydell, 2013/12/03
- [Qemu-devel] [PATCH 02/12] target-arm: A64: add set_pc cpu method, Peter Maydell, 2013/12/03
- [Qemu-devel] [PATCH 03/12] target-arm: A64: provide functions for accessing FPCR and FPSR, Peter Maydell, 2013/12/03
- [Qemu-devel] [PATCH 04/12] target-arm: Support fp registers in gdb stub, Peter Maydell, 2013/12/03
- [Qemu-devel] [PATCH 01/12] target-arm: Split A64 from A32/T32 gen_intermediate_code_internal(), Peter Maydell, 2013/12/03
- [Qemu-devel] [PATCH 11/12] target-arm: A64: add support for 'test and branch' imm, Peter Maydell, 2013/12/03