Commit Graph

7 Commits

Author SHA1 Message Date
Peter Maydell da97f52cb3 target-arm: Implement VFPv4 fused multiply-accumulate insns
Implement the fused multiply-accumulate instructions (VFMA, VFMS,
VFNMA, VFNMS) which are new in VFPv4.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2011-10-19 16:14:07 +00:00
Peter Maydell 02da0b2d71 Revert "target-arm: Use global env in neon_helper.c helpers"
This effectively reverts commit 2a3f75b42a
so that we return to passing CPUState to helpers as an explicit parameter.
(There were a number of conflicts in target-arm/translate.c which had
to be resolved by hand so it is not a pure revert.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2011-06-22 15:01:41 +00:00
Peter Maydell aa47cfdd17 target-arm: Pass fp status pointer explicitly to neon fp helpers
Make the Neon helpers for various floating point operations take an
explicit pointer to the float_status they use, so they don't rely on
the global environment pointer any more. This also allows us to drop
the mul/sub/add helpers completely and just use the vfp versions.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2011-06-22 15:01:36 +00:00
Peter Maydell ae1857eca2 target-arm: Make VFP binop helpers take pointer to fpstatus, not CPUState
Make the VFP binop helper functions take a pointer to the fp status, not
the entire CPUState. This will allow us to use them for Neon operations too.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2011-06-22 15:01:31 +00:00
Peter Maydell 477955bd55 Revert "target-arm: Use global env in iwmmxt_helper.c helpers"
This reverts commit 947a2fa21b,
returning the iwmmxt helpers to passing env in as a parameter.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2011-06-22 15:01:21 +00:00
Peter Maydell 5500b06cb5 target-arm: Use correct float status for Neon int-float conversions
The Neon versions of int-float conversions must use the "standard FPSCR"
rather than the default FPSCR. Implement this by having the helper
functions take a pointer to the appropriate float_status value rather
than simply taking a pointer to the entire CPUState, and making
translate.c pass a pointer to vfp.fp_status or vfp.standard_fp_status
appropriately for whether the instruction being translated is Neon
or VFP.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-05-23 22:39:36 +02:00
Lluís 7b59220ef3 move helpers.h to helper.h
This provides a consistent naming scheme across all targets.

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-04-17 20:41:11 +02:00