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tcg-target.c 58.8 kB
tcg-target.h 2.8 kB

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# Date Author Comment
7e0d9562 04/19/2010 08:03 am Aurelien Jarno

tcg/arm: remove conditional argument for qemu_ld/st

While it make sense to pass a conditional argument to tcg_out_*()
functions as the ARM architecture allows that, it doesn't make sense
for qemu_ld/st functions. These functions use comparison instructions...
e854b6d3 04/19/2010 08:03 am Aurelien Jarno

tcg/arm: use ext* ops in qemu_ld

Signed-off-by: Aurelien Jarno <>
67dcab73 04/19/2010 08:03 am Aurelien Jarno

tcg/arm: bswap arguments in qemu_ld/st if needed

On big endian targets, data arguments of qemu_ld/st ops have to be
byte swapped. Two temporary registers are needed for qemu_st to do
the bswap. r0 and r1 are used in system mode, do the same in user
mode, which implies reworking the constraints....
8f7f749f 04/19/2010 08:03 am Aurelien Jarno

tcg/arm: sxtb and sxth are available starting with ARMv6

Signed-off-by: Aurelien Jarno <>
23401b58 04/19/2010 08:03 am Aurelien Jarno

tcg/arm: use the blx instruction when possible

Signed-off-by: Aurelien Jarno <>
293579e5 04/19/2010 08:03 am Aurelien Jarno

tcg/arm: add rotation ops

Signed-off-by: Aurelien Jarno <>
9517094f 04/19/2010 08:03 am Aurelien Jarno

tcg/arm: add ext16u op

Add an ext16u op, either using the uxth instruction on ARMv6+ or two
shifts on previous ARM versions. In both cases the result use the same
number or less instructions than the pure TCG version.

Also move all sign extension code to separate functions, so that they...
244b1e81 04/19/2010 08:03 am Aurelien Jarno

tcg/arm: add bswap ops

Add an bswap16 and bswap32 ops, either using the rev and rev16
instructions on ARMv6+ or shifts and logical operations on previous
ARM versions. In both cases the result use less instructions than
the pure TCG version.

These ops are also needed by the qemu_ld/st functions....
2488b41b 04/19/2010 08:02 am Aurelien Jarno

tcg/arm: align 64-bit arguments in function calls

As specified by the "Procedure Call Standard for the ARM Architecture".

Signed-off-by: Aurelien Jarno <>
ac34fb5c 04/19/2010 08:02 am Aurelien Jarno

tcg/arm: add variables to define the allowed instructions set

Use a set of variables to define the allowed ARM instructions, depending
on the ARM_ARCH_* GCC defines.

Signed-off-by: Aurelien Jarno <>

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