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path: root/target-ppc/int_helper.c
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2014-09-08target-ppc: Implement mulldo with TCGTom Musta
Optimize mulldo by using the muls2_i64 operation rather than a helper. Eliminate the obsolete helper code. Signed-off-by: Tom Musta <tommusta@gmail.com> Suggested-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-09-08target-ppc: Bug Fix: sradTom Musta
Fix the check for carry in the srad helper to properly construct the mask -- a "1ULL" must be used (instead of "1") in order to get the desired result. Example: R3 8000000000000000 R4 F3511AD4A2CD4C38 srad 3,3,4 Should *not* set XER[CA] but does without this patch. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-09-08target-ppc: Bug Fix: mulldo OV DetectionTom Musta
Fix the code to properly detect overflow; the 128 bit signed product must have all zeroes or all ones in the first 65 bits otherwise OV should be set. Example: R3 45F086A5D5887509 R4 0000000000000002 mulldo 3,3,4 Should set XER[OV]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Refactor AES InstructionsTom Musta
This patch refactors the PowerPC Advanced Encryption Standard (AES) instructions to use the common AES tables (include/qemu/aes.h). Specifically: - vsbox is recoded to use the AES_sbox table. - vcipher, vcipherlast and vncipherlast are all recoded to use the optimized AES_t[ed][0-4] tables. - vncipher is recoded to use a combination of InvS-Box, InvShiftRows and InvMixColumns tables. It was not possible to use AES_Td[0-4] due to a slight difference in how PowerPC implements vncipher. Signed-off-by: Tom Musta <tommusta@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-05-28tcg: Invert the inclusion of helper.hRichard Henderson
Rather than include helper.h with N values of GEN_HELPER, include a secondary file that sets up the macros to include helper.h. This minimizes the files that must be rebuilt when changing the macros for file N. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-03-19target-ppc: Add missing 'static' and 'const' attributesStefan Weil
This fixes warnings from the static code analysis (smatch). Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-15misc: Fix typos in commentsStefan Weil
Codespell found and fixed these new typos: * doesnt -> doesn't * funtion -> function * perfomance -> performance * remaing -> remaining A coding style issue (line too long) was fixed manually. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-03-05target-ppc: Altivec 2.07: Vector Permute and Exclusive ORTom Musta
This patch adds the Vector Permuate and Exclusive OR (vpermxor) instruction introduced in Power ISA Version 2.07. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Vector SHA Sigma InstructionsTom Musta
This patch adds the Vector SHA Sigma instructions introduced in Power ISA Version 2.07: - Vector SHA-512 Sigma Doubleword (vshasigmad) - Vector SHA-256 Sigma Word (vshasigmaw) Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: AES InstructionsTom Musta
This patch adds the Vector AES instructions introduced in Power ISA Version 2.07: - Vector AES Cipher (vcipher) - Vector AES Cipher Last (vcipherlast) - Vector AES Inverse Cipher (vncipher) - Vector AES Inverse Cipher Last (vncipherlast) - Vector AES SubBytes (vsbox) Note that the implementation of vncipher deviates from the RTL in ISA V2.07. However it does match the verbal description in the third paragraph. The RTL will be fixed in ISA V2.07B. The implementation here has been tested against actual P8 hardware. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Binary Coded Decimal InstructionsTom Musta
This patch add the Binary Coded Decimal instructions bcdadd. and bcdsub. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Vector Polynomial Multiply SumTom Musta
This patch adds the Vectory Polynomial Multiply Sum instructions introduced in Power ISA Version 2.07: - Vectory Polynomial Multiply Sum Byte (vpmsumb) - Vectory Polynomial Multiply Sum Halfword (vpmsumh) - Vectory Polynomial Multiply Sum Word (vpmsumw) - Vectory Polynomial Multiply Sum Doubleword (vpmsumd) Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Vector Gather Bits by BytesTom Musta
This patch adds the Vector Gather Bits by Bytes Doubleword (vgbbd) instruction which is introduced in Power ISA Version 2.07. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Doubleword ComparesTom Musta
This patch adds the Vector Compare Doubleword instructions introduced by Power ISA Version 2.07: - Vector Compare Equal to Unsigned Doubleword (vcmpequd) - Vector Compare Greater Than Signed Doubleword (vcmpgtsd) - Vector Compare Greater Than Unsigned Doubleword (vcmpgtud) These instructions are encoded with bit 31 set to 1 and so are duals with vcmpeqfp, vcmpgtfp and vcmpbfp respectively. The helper macro for integer compares is enhanced to account for 64-bit operands. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: vbpermq InstructionTom Musta
This patch adds the Vector Bit Permute Quadword (vbpermq) instruction introduced in Power ISA Version 2.07. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Quadword Addition and SubtracationTom Musta
This patch adds the Vector Quadword Addition and Subtraction instructions introduced in Power ISA Version 2.07: - Vector Add Unsigned Quadword Modulo (vadduqm) - Vector Add & Write Carry Unsigned Quadword (vaddcuq) - Vector Add Extended Unsigned Quadword (vaddeuqm) - Vector Add Extended & Write Carry Unsigned Quadword (vaddecuq) - Vector Subtract Unsigned Quadword Modulo (vsubuqm) - Vector Subtract & Write Carry Unsigned Quadword (vsubcuq) - Vector Subtract Extended Unsigned Quadword (vsubeuqm) - Vector Subtract Extended & Write Carry Unsigned Quadword (vsubecuq) Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Vector Doubleword Rotate and Shift InstructionsTom Musta
This patch adds the vector doublword rotate and shift instructions introduced in Power ISA Version 2.07: - Vector Rotate Left Doubleword instruction (vrld) - Vector Shift Left Doubleword (vsld) - Vector Shift Right Doubleword (vsrd) - Vector Shift Right Algegbraic Doubleword (vsrad) Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Change Bit Masks to Support 64-bit Rotates and ShiftsTom Musta
Existing code in the VROTATE, VSL and VSR macros for the Altivec rotate and shift helpers uses a formula to compute a bit mask used to extract the rotate/shift amount from the VRB register. What is desired is: mask = (1 << (3 + log2(sizeof(element)))) - 1 but what is implemented is: mask = (1 << (3 + (sizeof(element)/2))) - 1 This produces correct answers when "element" is uint8_t, uint16_t or uint_32t. But it breaks down when element is uint64_t. This patch corrects the situation. Since the mask is known at compile time, the macros are changed to simply accept the mask as an argument. Subsequent patches in this series will add double-word variants of rotates and shifts and thus take advantage of this fix. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Unpack Signed Word InstructionsTom Musta
This patch adds the Unpack Signed Word instructions introduced in Power ISA Version 2.07: - Vector Unpack High Signed Word (vupkusw) - Vector Unpack Low Signed Word (vupklsw) Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Pack Doubleword InstructionsTom Musta
This patch adds the Vector Pack Doubleword instructions introduced in Power ISA Version 2.07: - Vector Pack Signed Doubleword Signed Saturate (vpksdss) - Vector Pack Signed Doubleword Unsigned Saturate (vpksdus) - Vector Pack Unsigned Doubleword Unsigned Modulo (vpkudum) - Vector Pack Unsigned Doubleword Unsigned Saturate (vpkudus) Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Vector Min/Max Doubleword InstructionsTom Musta
This patch adds the Vector Minimum and Maximum Doubleword instructions that are introduced in Power ISA Version 2.07. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Vector Population Count InstructionsTom Musta
This patch adds the Vector Population Count instructions introduced in Power ISA Version 2.07: vpopcntb, vpopcnth, vpopcntw and vpopcntd. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Add Vector Count Leading ZeroesTom Musta
This patch adds the Vector Count Leading Zeroes instructions introduced in Power ISA Version 2.07 - vclzb, vclzh, vclzw and vclzd. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: vmuluw InstructionTom Musta
This patch adds the Vector Multiply Unsigned Word Modulo (vmuluwm) instruction. The existing VARITH_DO macro is re-used to (trivially) instantiate the helper code. Since bits 21-31 of any vmuluwm instruction is 137, the instruction is coded as a dual to vmulouw (bits 21-31 = 136). Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Multiply Even/Odd Word InstructionsTom Musta
This patch adds the Multilpy Even/Odd Word instructions that are introduced in Power ISA Version 2.07: - Vector Multiply Even Unsigned Word (vmuleuw) - Vector Multiply Even Signed Word (vmulesw) - Vector Multiply Odd Unsigned Word (vmulouw) - Vector Multiply Odd Signed Word (vmulosw) Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Change VMUL_DO to Support 64-bit IntegersTom Musta
This VMUL_DO macro provides support for the various vmule* and vmulo* instructions. These instructions multiply vector elements, producing products that are one size larger; e.g. vmuleub multiplies unsigned 8-bit elements and produces a 16 bit unsigned element. The existing macro works correctly for the existing instructions (8-bit, and 16-bit source elements) but does not work correctly for 32-bit source elements. This patch adds an explicit cast to the multiplicands, forcing them to be of the target element type. This is required for the forthcoming patches that add the vmul[eo][us]w instructions. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Altivec 2.07: Add/Subtract Unsigned Doubleword ModuloTom Musta
This patch adds two Altivec unsigned doublword modulo instructions that are introduced in Power ISA Version V2.07: - vaddudm : Vector Add Unsigned Doubleword Modulo - vsubudm : Vector Subtrace Unsigned Doubleword Modulo Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Add ISA 2.06 divwe[o] InstructionsTom Musta
This patch addes the signed Divide Word Extended instructions which were introduced in Power ISA 2.06B. Signed-off-by: Tom Musta <tommusta@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Add ISA 2.06 divweu[o] InstructionsTom Musta
This patch addes the Unsigned Divide Word Extended instructions which were introduced in Power ISA 2.06B. Signed-off-by: Tom Musta <tommusta@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Add ISA2.06 divde[o] InstructionsTom Musta
This patch adds the Divide Doubleword Extended instructions. The implementation builds on the unsigned helper provided in the previous patch. Signed-off-by: Tom Musta <tommusta@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Add ISA2.06 divdeu[o] InstructionsTom Musta
This patch adds the Divide Doubleword Extended Unsigned instructions. This instruction requires dividing a 128-bit value by a 64 bit value. Since 128 bit integer division is not supported in TCG, a helper is used. An architecture independent 128-bit division routine is added to host-utils. Signed-off-by: Tom Musta <tommusta@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> [agraf: use ||] Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Add ISA2.06 bpermd InstructionTom Musta
This patch adds the Bit Permute Doubleword (bpermd) instruction, which was introduced in Power ISA 2.06 as part of the base 64-bit architecture. Signed-off-by: Tom Musta <tommusta@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-26target-ppc: emulate cmpb instructionAurelien Jarno
Needed for Power ISA version 2.05 compliance. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-02-23target-ppc: Split out SO, OV, CA fields from XERRichard Henderson
In preparation for more efficient setting of these fields. Cc: Alexander Graf <agraf@suse.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-02-23target-ppc: Use mul*2 in mulh* insnsRichard Henderson
Cc: Alexander Graf <agraf@suse.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-12-19misc: move include files to include/qemu/Paolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-10-04target-ppc: get rid of the HANDLE_NAN{1, 2, 3} macrosAurelien Jarno
We can finally get rid of the ugly HANDLE_NAN{1,2,3} macros. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-10-04target-ppc: use the softfloat float32_muladd functionAurelien Jarno
Use the new softfloat float32_muladd() function to implement the vmaddfp and vnmsubfp instructions. As a bonus we can get rid of the call to the HANDLE_NAN3 macro, as the NaN handling is directly done at the softfloat level. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-10-04target-ppc: use the softfloat min/max functionsAurelien Jarno
Use the new softfloat float32_min() and float32_max() to implement the vminfp and vmaxfp instructions. As a bonus we can get rid of the call to the HANDLE_NAN2 macro, as the NaN handling is directly done at the softfloat level. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-10-04target-ppc: simplify NaN propagation for vector functionsAurelien Jarno
Commit e024e881bb1a8b5085026589360d26ed97acdd64 provided a pickNaN() function for PowerPC, implementing the correct NaN propagation rules. Therefore there is no need to test the operands manually, we can rely on the softfloat code to do that. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Make hbrev table constBlue Swirl
Lookup table 'hbrev' is never written to, so add a 'const' qualifier. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Avoid AREG0 for integer and vector helpersBlue Swirl
Add an explicit CPUPPCState parameter instead of relying on AREG0. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> [fix unwanted whitespace line in Makefile.target] Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Split integer and vector opsBlue Swirl
Move integer and vector ops to int_helper.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
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