tcg-i386: Introduce limited deposit support
x86 cannot provide an optimized generic deposit implementation. But atleast for a few special cases, namely for writing bits 0..7, 8..15, and0..15, versions using only a single instruction are feasible.Introducing such limited support improves emulating 16-bit x86 code on...
tcg/i386: Only one call output register needed for 64 bit hosts
The second register is only needed for 32 bit hosts.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
tcg: Always define all of the TCGOpcode enum members.
By always defining these symbols, we can eliminate a lot of ifdefs.
To allow this to be checked reliably, the semantics of theTCG_TARGET_HAS_* macros must be changed from def/undef to true/false.This allows even more ifdefs to be removed, converting them into...
TCG/x86: use stack for TCG temps
Use stack instead of temp_buf array in CPUState for TCGtemps.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
TCG/x86: use TCG_REG_CALL_STACK instead of TCG_REG_ESP
Except for specific cases where the use of %esp changes the encoding ofthe instruction, it's cleaner to use TCG_REG_CALL_STACK instead ofTCG_REG_ESP.
Delegate setup of TCG temporaries to targets
Delegate TCG temp_buf setup to targets, so that they can use a stackframe later instead.
cpu-exec.c: avoid AREG0 use
Make functions take a parameter for CPUState instead of relyingon global env. Pass CPUState pointer to TCG prologue, which movesit to AREG0.
Thanks to Peter Maydell and Laurent Desnogues for the ARM prologuechange.
Revert the hacks to avoid AREG0 use on Sparc hosts....
tcg-i386: fix andi r, r, 0xff
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
tcg-i386: remove use of _Bool that slipped code review
tcg-i386: Merge 64-bit generation.
Signed-off-by: Richard Henderson <rth@twiddle.net>Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
View revisions
Also available in: Atom