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[Qemu-commits] [qemu/qemu] ba0059: disas/i386.c: disassemble movbe instr
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[Qemu-commits] [qemu/qemu] ba0059: disas/i386.c: disassemble movbe instruction |
Date: |
Thu, 30 Jan 2014 11:30:05 -0800 |
Branch: refs/heads/master
Home: https://github.com/qemu/qemu
Commit: ba00599cc32626b53ba151c627a763518c76c49f
https://github.com/qemu/qemu/commit/ba00599cc32626b53ba151c627a763518c76c49f
Author: Aurelien Jarno <address@hidden>
Date: 2014-01-25 (Sat, 25 Jan 2014)
Changed paths:
M disas/i386.c
Log Message:
-----------
disas/i386.c: disassemble movbe instruction
Signed-off-by: Aurelien Jarno <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
Commit: c9d78213b8bf6e0da9ff30b53c33e93fb0373249
https://github.com/qemu/qemu/commit/c9d78213b8bf6e0da9ff30b53c33e93fb0373249
Author: Aurelien Jarno <address@hidden>
Date: 2014-01-25 (Sat, 25 Jan 2014)
Changed paths:
M tcg/i386/tcg-target.c
Log Message:
-----------
tcg/i386: remove hardcoded P_REXW value
P_REXW is defined has a constant at the beginning of i386/tcg-target.c,
but the corresponding bit is later used in a harcoded way, which defeat
the purpose of a constant.
Fix that by using a conditional expression operator instead of a shift.
On x86 this actually makes the code slightly smaller as GCC does in
practice (opc >> 8) & 8 instead of (opc & 0x800) >> 8 so the constants
are smaller to load.
Signed-off-by: Aurelien Jarno <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
Commit: 2a1137753f9618283ac40394a75976d18f608e39
https://github.com/qemu/qemu/commit/2a1137753f9618283ac40394a75976d18f608e39
Author: Aurelien Jarno <address@hidden>
Date: 2014-01-25 (Sat, 25 Jan 2014)
Changed paths:
M tcg/i386/tcg-target.c
Log Message:
-----------
tcg/i386: add support for three-byte opcodes
Add support for three-byte opcodes, starting with the 0x0f 0x38 prefix.
Use P_EXT38 as the new constant, and shift all other constants so that
P_EXT and P_EXT38 have neighbouring values.
Signed-off-by: Aurelien Jarno <address@hidden>
[RTH: Changed the name from P_EXT2 to P_EXT38.]
Signed-off-by: Richard Henderson <address@hidden>
Commit: 085bb5bb64069a16b843fca840f91cdfb3f40fda
https://github.com/qemu/qemu/commit/085bb5bb64069a16b843fca840f91cdfb3f40fda
Author: Aurelien Jarno <address@hidden>
Date: 2014-01-25 (Sat, 25 Jan 2014)
Changed paths:
M tcg/i386/tcg-target.c
Log Message:
-----------
tcg/i386: use movbe instruction in qemu_ldst routines
The movbe instruction has been added on some Intel Atom CPUs and on
recent Intel Haswell CPUs. It allows to load/store a value and at the
same time bswap it.
This patch detects the avaibility of this instruction and when available
use it in the qemu load/store routines in replacement of load/store +
bswap. Note that for 16-bit unsigned loads, movbe + movzw is basically the
same as movzw + bswap, so the patch doesn't touch this case.
Signed-off-by: Aurelien Jarno <address@hidden>
[RTH: Reduced the number of conditionals using "movop".]
Signed-off-by: Richard Henderson <address@hidden>
Commit: 2d23d5edb5b23849c668dd729e4da7b2c63b163b
https://github.com/qemu/qemu/commit/2d23d5edb5b23849c668dd729e4da7b2c63b163b
Author: Aurelien Jarno <address@hidden>
Date: 2014-01-25 (Sat, 25 Jan 2014)
Changed paths:
M tcg/i386/tcg-target.c
Log Message:
-----------
tcg/i386: cleanup useless #ifdef
TCG_TARGET_HAS_movcond_i32 is always defined to 1 in tcg-target.h, so
remove the corresponding #ifdef #endif sequence, left from a previous
refactoring.
Signed-off-by: Aurelien Jarno <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
Commit: dc08f85188b5976d93bff25ab9e68cf3ce62b12f
https://github.com/qemu/qemu/commit/dc08f85188b5976d93bff25ab9e68cf3ce62b12f
Author: Peter Maydell <address@hidden>
Date: 2014-01-30 (Thu, 30 Jan 2014)
Changed paths:
M disas/i386.c
M tcg/i386/tcg-target.c
Log Message:
-----------
Merge remote-tracking branch 'rth/tcg-movbe' into staging
* rth/tcg-movbe:
tcg/i386: cleanup useless #ifdef
tcg/i386: use movbe instruction in qemu_ldst routines
tcg/i386: add support for three-byte opcodes
tcg/i386: remove hardcoded P_REXW value
disas/i386.c: disassemble movbe instruction
Message-id: address@hidden
Signed-off-by: Peter Maydell <address@hidden>
Compare: https://github.com/qemu/qemu/compare/0706f7c85b3c...dc08f85188b5
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