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[Qemu-devel] [Bug 595906] [NEW] [ARM] All variants of ADDSUBX, SUBADDX g

From: Bradley Smith
Subject: [Qemu-devel] [Bug 595906] [NEW] [ARM] All variants of ADDSUBX, SUBADDX give incorrect results
Date: Fri, 18 Jun 2010 11:35:20 -0000 
Public bug reported:

All variants of the ADDSUBX/SUBADDX instructions seem to be implemented
incorrectly, i.e.

    MOV r12, #0
    LDR r0, =0x18004800
    LDR r1, =0x30006000
    QADDSUBX r12, r0, r1    ; Should give 0x78001800 - gives 0x4800e800

This happens with latest git HEAD.

** Affects: qemu
     Importance: Undecided
         Status: New

-- 
[ARM] All variants of ADDSUBX,SUBADDX give incorrect results
https://bugs.launchpad.net/bugs/595906
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Status in QEMU: New

Bug description:
All variants of the ADDSUBX/SUBADDX instructions seem to be implemented 
incorrectly, i.e.

    MOV r12, #0
    LDR r0, =0x18004800
    LDR r1, =0x30006000
    QADDSUBX r12, r0, r1    ; Should give 0x78001800 - gives 0x4800e800

This happens with latest git HEAD.
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