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path: root/target-ppc/fpu_helper.c
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2014-03-13cpu: Move exception_index field from CPU_COMMON to CPUStateAndreas Färber1-8/+18
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-05target-ppc: Fix Compiler Warnings Due to 64-Bit Constants Declared as ULTom Musta1-22/+22
This patch fixes 64 bit constants that were erroneously declared as "ul" instead of "ull". The preferred form "ULL" is used. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-03-05target-ppc: Add ISA 2.06 ftsqrtTom Musta1-0/+31
This patch adds the Floating Point Test for Square Root instruction which was introduced in Power ISA 2.06. 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 ftdiv InstructionTom Musta1-10/+46
This patch adds the Floating Point Test for Divide instruction which was 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: Fix and enable fri[mnpz]Tom Musta1-7/+11
The fri* series of instructions was introduced prior to ISA 2.06 and is supported on Power7 and Power8 hardware. However, the instruction is still considered illegal in the P7 and P8 QEMU emulation models. This patch enables these instructions for the P7 and P8 machines. Also, the existing helper is modified to correctly handle some of the boundary cases (NaNs and the inexact flag). 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 fcfid[u][s] InstructionsTom Musta1-9/+19
This patch adds the fcfids, fcfidu and fcfidus instructions which were introduced in Power ISA 2.06B. A common macro is provided to eliminate repetitious code, and the existing fcfid instruction is refactored to use this macro. 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 Float to Integer InstructionsTom Musta1-87/+33
This patch adds the four floating point to integer conversion instructions introduced by Power ISA V2.06: - Floating Convert to Integer Word Unsigned (fctiwu) - Floating Convert to Integer Word Unsigned with Round Toward Zero (fctiwuz) - Floating Convert to Integer Doubleword Unsigned (fctidu) - Floating Convert to Integer Doubleword Unsigned with Round Toward Zero (fctiduz) A common macro is developed to eliminate repetitious code. Existing instructions are also refactoried to use this macro (fctiw, fctiwz, fctid, fctidz). 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: Scalar Non-Signalling ConversionsTom Musta1-0/+16
This patch adds the non-signalling scalar conversion instructions: - VSX Scalar Convert Single Precision to Double Precision Non-Signalling (xscvspdpn) - VSX Scalar Convert Double Precision to Single Precision Non-Signalling (xscvdpspn) 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: Scalar Round to Single PrecisionTom Musta1-0/+11
This patch adds the VSX Scalar Round to Single Precision (xsrsp) instruction. 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: VSX Stage 4: Add xscvsxdsp and xscvuxdspTom Musta1-11/+16
This patch adds the VSX Scalar Convert Unsigned Integer Doubleword to Floating Point Format and Round to Single Precision (xscvuxdsp) and VSX Scalar Convert Signed Integer Douglbeword to Floating Point Format and Round to Single Precision (xscvsxdsp) instructions. The existing integer to floating point conversion macro (VSX_CVT_INT_TO_FP) is modified to support the rounding of the intermediate floating point result to single precision. 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: VSX Stage 4: Add Scalar SP Fused Multiply-AddsTom Musta1-29/+53
This patch adds the Single Precision VSX Scalar Fused Multiply-Add instructions: xsmaddasp, xsmaddmsp, xssubasp, xssubmsp, xsnmaddasp, xsnmaddmsp, xsnmsubasp, xsnmsubmsp. The existing VSX_MADD() macro is modified to support rounding of the intermediate double precision result to single precision. 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: VSX Stage 4: add xsrsqrtespTom Musta1-4/+9
This patch adds the VSX Scalar Reciprocal Square Root Estimate Single Precision (xsrsqrtesp) instruction. The existing VSX_RSQRTE() macro is modified to support rounding of the intermediate double-precision result to single precision. 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: VSX Stage 4: Add xssqrtspTom Musta1-4/+9
This patch adds the VSX Scalar Square Root Single Precision (xssqrtsp) instruction. The existing VSX_SQRT() macro is modified to support rounding of the intermediate double-precision result to single-precision. 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: VSX Stage 4: Add xsrespTom Musta1-4/+10
This patch adds the VSX Scalar Reciprocal Estimate Single Precision (xsresp) instruction. The existing VSX_RE macro is modified to support rounding of the intermediate double precision result to single precision. 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: VSX Stage 4: Add xsdivspTom Musta1-4/+9
This patch adds the VSX Scalar Divide Single Precision (xsdivsp) instruction. The existing VSX_DIV macro is modified to support rounding of the intermediate double precision result to single precision. 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: VSX Stage 4: Add xsmulspTom Musta1-4/+9
This patch adds the VSX Scalar Multiply Single-Precision (xsmulsp) instruction. The existing VSX_MUL macro is modified to support rounding of the intermediate result to single precision. 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: VSX Stage 4: Add xsaddsp and xssubspTom Musta1-7/+13
This patch adds the VSX Scalar Add Single-Precision (xsaddsp) and VSX Scalar Subtract Single-Precision (xssubsp) instructions. The existing VSX_ADD_SUB macro is modified to support the rounding of the (intermediate) result to single-precision. 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 VSX Rounding InstructionsTom Musta1-0/+68
This patch adds the VSX Round to Floating Point Integer instructions: - xsrdpi, xsrdpic, xsrdpim, xsrdpip, xsrdpiz - xvrdpi, xvrdpic, xvrdpim, xvrdpip, xvrdpiz - xvrspi, xvrspic, xvrspim, xvrspip, xvrspiz 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 VSX ISA2.06 Integer Conversion InstructionsTom Musta1-0/+107
This patch adds the VSX Integer Conversion instructions defined by V2.06 of the PowerPC ISA: - xscvdpsxds, xscvdpsxws, xscvdpuxds, xscvdpuxws - xvcvdpsxds, xvcvdpsxws, xvcvdpuxds, xvcvdpuxws - xvcvspsxds, xvcvspsxws, xvcvspuxds, xvcvspuxws - xscvsxddp, xscvuxddp - xvcvsxddp, xscvsxwdp, xvcvuxddp, xvcvuxwdp - xvcvsxdsp, xscvsxwsp, xvcvuxdsp, xvcvuxwsp 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 VSX Floating Point to Floating Point Conversion InstructionsTom Musta1-0/+46
This patch adds the VSX instructions that convert between floating point formats: xscvdpsp, xscvspdp, xvcvdpsp, xvcvspdp. 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 VSX Vector Compare InstructionsTom Musta1-0/+57
This patch adds the VSX floating point compare vector instructions: - xvcmpeqdp[.], xvcmpgedp[.], xvcmpgtdp[.] - xvcmpeqsp[.], xvcmpgesp[.], xvcmpgtsp[.] 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 VSX xmax/xmin InstructionsTom Musta1-0/+39
This patch adds the VSX floating point maximum and minimum instructions: - xsmaxdp, xvmaxdp, xvmaxsp - xsmindp, xvmindp, xvminsp Because of the Power ISA definitions of maximum and minimum on various boundary cases, the standard softfloat comparison routines (e.g. float64_lt) do not work as well as one might think. Therefore specific routines for comparing 64 and 32 bit floating point numbers are implemented in the PowerPC helper code. 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 VSX xscmp*dp InstructionsTom Musta1-0/+39
This patch adds the VSX scalar floating point compare ordered and unordered instructions. 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 VSX ISA2.06 Multiply Add InstructionsTom Musta1-0/+100
This patch adds the VSX floating point multiply/add instructions defined by V2.06 of the PowerPC ISA: - xsmaddadp, xvmaddadp, xvmaddasp - xsmaddmdp, xvmaddmdp, xvmaddmsp - xsmsubadp, xvmsubadp, xvmsubasp - xsmsubmdp, xvmsubmdp, xvmsubmsp - xsnmaddadp, xvnmaddadp, xvnmaddasp - xsnmaddmdp, xvnmaddmdp, xvnmaddmsp - xsnmsubadp, xvnmsubadp, xvnmsubasp - xsnmsubmdp, xvnmsubmdp, xvnmsubmsp 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 VSX ISA2.06 xtsqrt InstructionsTom Musta1-0/+54
This patch adds the VSX floating point test for software square root instructions defined by V2.06 of the PowerPC ISA: xstsqrtdp, xvtsqrtdp, xvtsqrtsp. 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 VSX ISA2.06 xtdiv InstructionsTom Musta1-0/+67
This patch adds the VSX floating point test for software divide instructions defined by V2.06 of the PowerPC ISA: xstdivdp, xvtdivdp, and xvtdivsp. 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 VSX ISA2.06 xrsqrte InstructionsTom Musta1-0/+45
This patch adds the VSX floating point reciprocal square root estimate instructions defined by V2.06 of the PowerPC ISA: xsrsqrtedp, xvrsqrtedp, xvrsqrtesp. 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 VSX ISA2.06 xsqrt InstructionsTom Musta1-0/+44
This patch adds the VSX floating point square root instructions defined by V2.06 of the PowerPC ISA: xssqrtdp, xvsqrtdp, xvsqrtsp. 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 VSX ISA2.06 xre InstructionsTom Musta1-0/+35
This patch adds the VSX floating point reciprocal estimate instructions defined by V2.06 of the PowerPC ISA: xsredp, xvredp, xvresp. 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 VSX ISA2.06 xdiv InstructionsTom Musta1-0/+49
This patch adds the VSX floating point divide instructions defined by V2.06 of the PowerPC ISA: xsdivdp, xvdivdp, xvdivsp. 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 VSX ISA2.06 xmul InstructionsTom Musta1-0/+47
This patch adds the VSX floating point multiply instructions defined by V2.06 of the PowerPC ISA: xsmuldp, xvmuldp, xvmulsp. 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 VSX ISA2.06 xadd/xsub InstructionsTom Musta1-0/+50
This patch adds the floating point addition and subtraction instructions defined by V2.06 of the PowerPC ISA: xssubdp, xvsubdp and xvsubsp. 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: General Support for VSX HelpersTom Musta1-0/+41
This patch adds general support that will be used by the VSX helper routines: - a union describing the various VSR subfields. - access routines to get and set VSRs - VSX decoders - a general routine to generate a handler that invokes a VSX helper. 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 set_fprf Argument to fload_invalid_op_excp()Tom Musta1-48/+55
The fload_invalid_op_excp() function sets assorted invalid operation status bits. However, it also implicitly modifies the FPRF field of the PowerPC FPSCR. Many VSX instructions set invalid operation bits but do not alter FPRF. Thus the function is more generally useful if the setting of the FPRF field is made conditional via a parameter. All invocations of this routine in existing instructions are modified to pass 1 and thus retain their current behavior. 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: add support for extended mtfsf/mtfsfi formsAurelien Jarno1-10/+7
Power ISA 2.05 adds support for extended mtfsf/mtfsfi form, with a new W field to select the upper part of the FPCSR register. For that the helper is changed to handle 64-bit input values and mask with up to 16 bits. The mtfsf/mtfsfi instructions do not have the W bit marked as invalid anymore. Instead this is checked in the helper, which therefore needs to access to the insns/insns_flags2. They are added in the DisasContext struct. Finally change all accesses to the opcode fields through extract helpers, prefixed with FP for consistency. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-26target-ppc: optimize fabs, fnabs, fnegAurelien Jarno1-31/+0
fabs, fnabs and fneg are just flipping the bit sign of an FP register, this can be implemented in TCG instead of using softfloat. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-04-26powerpc: correctly handle fpu exceptions.Tristan Gingold1-11/+12
Raise the exception on the first occurence, do not wait for the next floating point operation. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-03-22PPC/GDB: handle read and write of fpscrFabien Chouteau1-0/+5
Although the support of this register may be uncomplete, there are no reason to prevent the debugger from reading or writing it. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Add missing breakBlue Swirl1-0/+1
Add obviously missing 'break' statement. 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 FPU and SPE helpersBlue Swirl1-171/+179
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> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-06-24ppc: Split FPU and SPE opsBlue Swirl1-0/+1731
Move FPU and SPE helpers from op_helper.c to fpu_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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