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path: root/target-ppc/dfp_helper.c
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2014-06-16target-ppc: Introduce DFP Shift SignificandTom Musta1-0/+95
Add emulation of the PowerPC Decimal Floating Point Shift Significand Left Immediate (dscli[q][.]) and DFP Shift Significant Right Immediate (dscri[q][.]) instructions. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Insert Biased ExponentTom Musta1-0/+68
Add emulation of the PowerPC Decimal Floating Point Insert Biased Exponent instructions diex[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Extract Biased ExponentTom Musta1-0/+31
Add emulation of the PowerPC Decimal Floating Point Extract Biased Exponent instructions dxex[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Encode BCD to DPDTom Musta1-0/+72
Add emulation of the PowerPC Decimal Floating Point Encode Binary Coded Decimal to Densely Packed Decimal instructions denbcd[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Decode DPD to BCDTom Musta1-0/+66
Add emulation of the Power PC Decimal Floating Point Decode Densely Packed Decimal to Binary Coded Decimal instructions ddedpd[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Convert to FixedTom Musta1-0/+36
Add emulation of the PowerPC Decimal Floating Point Convert to Fixed instructions dctfix[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Convert to FixedTom Musta1-0/+26
Add emulation of the PowerPC Decimal Floating Point Convert to Fixed instructions dctfix[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce Round to DFP Short/LongTom Musta1-0/+48
Add emulation of the PowerPC Round to DFP Short (drsp[.]) and Round to DFP Long (drdpq[.]) instructions. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Convert to Long/ExtendedTom Musta1-0/+33
Add emulation of the PowerPC Convert to DFP Long (dctdp[.]) and Convert to DFP Extended (dctqpq[.]) instructions. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Round to IntegerTom Musta1-0/+40
Add emulation of the PowerPC Decimal Floating Point (DFP) Round to FP Integer With Inexact (drintx[q][.]) and DFP Round to FP Integer Without Inexact (drintn[q][.]) instructions. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP ReroundTom Musta1-0/+97
Add emulation of the PowerPC Decimal Floating Point Reround instructions drrnd[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP QuantizeTom Musta1-0/+132
Add emulation of the PowerPC Decimal Floating Point Quantize instructions dquai[q][.] and dqua[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Test SignificanceTom Musta1-0/+35
Add emulation of the PowerPC Decimal Floating Point Test Significance instructions dtstsf[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Test ExponentTom Musta1-0/+32
Add emulation of the PowerPC Decimal Floating Point Test Exponent instructions dtstex[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Test Data GroupTom Musta1-0/+55
Add emulation of the PowerPC Decimal Floating Point Test Data Group instructions dtstdg[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Test Data ClassTom Musta1-0/+28
Add emulation of the PowerPC Decimal Floating Point Test Data Class instructions dtstdc[q][.]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP ComparesTom Musta1-0/+58
Add emulation of the PowerPC Decimal Floating Point Compare instructions dcmpu[q] and dcmpo[q]. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP DivideTom Musta1-0/+38
Add emulation of the PowerPC Decimal Floating Point Divide instructions ddiv[q][.] Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP MultiplyTom Musta1-0/+23
Add emulation of the PowerPC Decimal Floating Point Multiply instructions dmul[q][.] Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP SubtractTom Musta1-0/+18
Add emulation of the PowerPC Decimal Floating Point Subtract instructions dsub[q][.] Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP AddTom Musta1-3/+126
Add emulation of the PowerPC Decimal Floating Point Add instructions dadd[q][.] Various GCC unused annotations are removed since it is now safe to remove them. Signed-off-by: Tom Musta <tommusta@gmail.com> [agraf: move brace in function definition] Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Post Processor UtilitiesTom Musta1-0/+31
Add post-processing utilities to the PowerPC Decimal Floating Point (DFP) helper code. Post-processors are small routines that execute after a preliminary DFP result is computed. They are used, among other things, to compute status bits. This change defines a function type for post processors as well as a generic routine to run a list (array) of post-processors. Actual post-processor implementations will be added as needed by specific DFP helpers in subsequent changes. Some routines are annotated with the GCC unused attribute in order to preserve build bisection. The annotation will be removed in subsequent patches. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16target-ppc: Introduce DFP Helper UtilitiesTom Musta1-0/+132
Add a new file (dfp_helper.c) to the PowerPC implementation for Decimal Floating Point (DFP) emulation. This first version of the file declares a structure that will be used by DFP helpers. It also implements utilities that will initialize such a structure for either a long (64 bit) DFP instruction or an extended (128 bit, aka "quad") instruction. Some utility functions are annotated with the unused attribute in order to preserve build bisection. Signed-off-by: Tom Musta <tommusta@gmail.com> [agraf: Add never reached assert on dfp_prepare_rounding_mode()] Signed-off-by: Alexander Graf <agraf@suse.de>
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