systemz: fix base/index printing

[kamiyaa]

• In cases where base is 0 but index is not, Capstone doesn't print anything

[radare]

There are tons of missing instructions and tons of outdated changes for sysz . The current state is useless for any use case i tried.. are you in the mood to update the sysz backend?

…

On 31 Oct 2019, at 20:07, Jiayi Zhao ***@***.***> wrote:  In cases where base is 0 but index is not, Capstone doesn't print anything You can view, comment on, or merge this pull request online at: #1561 Commit Summary systemz: fix base/index printing File Changes M arch/SystemZ/SystemZInstPrinter.c (9) Patch Links: https://github.com/aquynh/capstone/pull/1561.patch https://github.com/aquynh/capstone/pull/1561.diff — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or unsubscribe.

[kamiyaa]

There are tons of missing instructions and tons of outdated changes for sysz . The current state is useless for any use case i tried.. are you in the mood to update the sysz backend?

I don't mind. Is there someone I can refer to to get started/breakdown, or some documentation?

[aquynh]

@kamiyaa can you provide the input of this case?

[kamiyaa]

Expected:

e38d00080004 0x7b00601e lg %r8, 8(%r13)

Actual:

e38d00080004 0x7b00601e lg %r8, 8

Expected:

588800e4 0x7b006024 l %r8, 0xe4(%r8)

Actual:

588800e4 0x7b006024 l %r8, 0xe4

Expected:

e34d01180024 0x7b006000 stg %r4, 0x118(%r13)

Actual:

e34d01180024 0x7b006000 stg %r4, 0x118

[aquynh]

merged, thanks!