[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH 00/77] target/microblaze improvements
|
From: |
Edgar E. Iglesias |
|
Subject: |
Re: [PATCH 00/77] target/microblaze improvements |
|
Date: |
Thu, 27 Aug 2020 12:22:17 +0200 |
On Thu, Aug 27, 2020 at 03:01:57AM -0700, Richard Henderson wrote:
> On 8/27/20 2:11 AM, Edgar E. Iglesias wrote:
> > So a first general regression is that opcode 0 no longer
> > traps as an illegal instruction (seems to be treated as an
> > add with all r0).
>
> Oops, will fix.
Thanks. Here's another issue, it seems some branches are jumping
to the wrong address.
This is a disasm from a failing case:
0x00000000ffd033a0: brlid r15, -636 // 0xffffffffffd03124
0x00000000ffd033a4: or r0, r0, r0
0x00000000ffa73124: Address 0xffa73124 is out of bounds.
0x00000000ffa73128: Address 0xffa73128 is out of bounds.
This one is from a working one:
0x00000000ffd033a0: brlid r15, -636 // 0xffffffffffd03124
0x00000000ffd033a4: or r0, r0, r0
--------------
0x00000000ffd03124: imm -40
0x00000000ffd03128: lwi r3, r0, 268
0x00000000ffd0312c: imm -40
0x00000000ffd03130: lwi r4, r0, 256
0x00000000ffd03134: srl r3, r3
0x00000000ffd03138: bsrli r4, r4, 23
0x00000000ffd0313c: andi r3, r3, 1
0x00000000ffd03140: rtsd r15, 8
0x00000000ffd03144: and r3, r4, r3
- [PATCH 76/77] target/microblaze: Add flags markup to some helpers, (continued)
- [PATCH 76/77] target/microblaze: Add flags markup to some helpers, Richard Henderson, 2020/08/25
- [PATCH 70/77] target/microblaze: Tidy do_rti, do_rtb, do_rte, Richard Henderson, 2020/08/25
- [PATCH 75/77] target/microblaze: Remove cpu_R[0], Richard Henderson, 2020/08/25
- [PATCH 71/77] target/microblaze: Convert msrclr, msrset to decodetree, Richard Henderson, 2020/08/25
- [PATCH 74/77] target/microblaze: Remove last of old decoder, Richard Henderson, 2020/08/25
- [PATCH 77/77] target/microblaze: Reduce linux-user address space to 32-bit, Richard Henderson, 2020/08/25
- Re: [PATCH 00/77] target/microblaze improvements, Edgar E. Iglesias, 2020/08/26
- Re: [PATCH 00/77] target/microblaze improvements, Edgar E. Iglesias, 2020/08/26
- Re: [PATCH 00/77] target/microblaze improvements, Edgar E. Iglesias, 2020/08/27
Re: [PATCH 00/77] target/microblaze improvements, Edgar E. Iglesias, 2020/08/28