image/svg+xmlVRANGEPD—Range Restriction Calculation For Packed Pairs of Float64 ValuesInstruction Operand EncodingDescriptionThis instruction calculates 2/4/8 range operation outputs from two sets of packed input double-precision FP values in the first source operand (the second operand) and the second source operand (the third operand). The range outputs are written to the destination operand (the first operand) under the writemask k1. Bits7:4 of imm8 byte must be zero. The range operation output is performed in two parts, each configured by a two-bit control field within imm8[3:0]:•Imm8[1:0] specifies the initial comparison operation to be one of max, min, max absolute value or min absolute value of the input value pair. Each comparison of two input values produces an intermediate result that combines with the sign selection control (Imm8[3:2]) to determine the final range operation output.•Imm8[3:2] specifies the sign of the range operation output to be one of the following: from the first input value, from the comparison result, set or clear.The encodings of Imm8[1:0] and Imm8[3:2] are shown in Figure5-27.Opcode/InstructionOp / En64/32 bit Mode SupportCPUID Feature FlagDescriptionEVEX.128.66.0F3A.W1 50 /r ibVRANGEPD xmm1 {k1}{z}, xmm2, xmm3/m128/m64bcst, imm8AV/VAVX512VLAVX512DQCalculate two RANGE operation output value from 2 pairs of double-precision floating-point values in xmm2 and xmm3/m128/m32bcst, store the results to xmm1 under the writemask k1. Imm8 specifies the comparison and sign of the range operation.EVEX.256.66.0F3A.W1 50 /r ibVRANGEPD ymm1 {k1}{z}, ymm2, ymm3/m256/m64bcst, imm8AV/VAVX512VLAVX512DQCalculate four RANGE operation output value from 4pairs of double-precision floating-point values in ymm2 and ymm3/m256/m32bcst, store the results to ymm1 under the writemask k1. Imm8 specifies the comparison and sign of the range operation.EVEX.512.66.0F3A.W1 50 /r ibVRANGEPD zmm1 {k1}{z}, zmm2, zmm3/m512/m64bcst{sae}, imm8AV/VAVX512DQCalculate eight RANGE operation output value from 8 pairs of double-precision floating-point values in zmm2 and zmm3/m512/m32bcst, store the results to zmm1 under the writemask k1. Imm8 specifies the comparison and sign of the range operation.Op/EnTuple TypeOperand 1Operand 2Operand 3Operand 4AFullModRM:reg (w)EVEX.vvvv (r)ModRM:r/m (r)Imm8Figure 5-27. Imm8 Controls for VRANGEPD/SD/PS/SS70246531Compare Operation SelectMust Be ZeroImm8[3:2] = 00b : Select sign(SRC1)Sign Control (SC)Imm8[3:2] = 01b : Select sign(Compare_Result)Imm8[3:2] = 10b : Set sign to 0Imm8[1:0] = 00b : Select Min valueImm8[1:0] = 01b : Select Max valueImm8[1:0] = 10b : Select Min-Abs valueImm8[1:0] = 11b : Select Max-Abs valueimm8Imm8[3:2] = 11b : Set sign to 1

image/svg+xmlWhen one or more of the input value is a NAN, the comparison operation may signal invalid exception (IE). Details with one of more input value is NAN is listed in Table 5-10. If the comparison raises an IE, the sign select control (Imm8[3:2] has no effect to the range operation output, this is indicated also in Table 5-10.When both input values are zeros of opposite signs, the comparison operation of MIN/MAX in the range compare operation is slightly different from the conceptually similar FP MIN/MAX operation that are found in the instructions VMAXPD/VMINPD. The details of MIN/MAX/MIN_ABS/MAX_ABS operation for VRANGEPD/PS/SD/SS for magni-tude-0, opposite-signed input cases are listed in Table 5-11.Additionally, non-zero, equal-magnitude with opposite-sign input values perform MIN_ABS or MAX_ABS compar-ison operation with result listed in Table 5-12.Table 5-10. Signaling of Comparison Operation of One or More NaN Input Values and Effect of Imm8[3:2]Src1Src2ResultIE Signaling Due to ComparisonImm8[3:2] Effect to Range OutputsNaN1sNaN2Quiet(sNaN1)YesIgnoredsNaN1qNaN2Quiet(sNaN1)YesIgnoredsNaN1Norm2Quiet(sNaN1)YesIgnoredqNaN1sNaN2Quiet(sNaN2)YesIgnoredqNaN1qNaN2qNaN1NoApplicableqNaN1Norm2Norm2NoApplicableNorm1sNaN2Quiet(sNaN2)YesIgnoredNorm1qNaN2Norm1NoApplicableTable 5-11. Comparison Result for Opposite-Signed Zero Cases for MIN, MIN_ABS and MAX, MAX_ABSMIN and MIN_ABSMAX and MAX_ABSSrc1Src2ResultSrc1Src2Result+0-0-0+0-0+0-0+0-0-0+0+0Table 5-12. Comparison Result of Equal-Magnitude Input Cases for MIN_ABS and MAX_ABS, (|a| = |b|, a>0, b<0)MIN_ABS (|a| = |b|, a>0, b<0)MAX_ABS (|a| = |b|, a>0, b<0)Src1Src2ResultSrc1Src2Resultabbabababbaa

image/svg+xmlOperationRangeDP(SRC1[63:0], SRC2[63:0], CmpOpCtl[1:0], SignSelCtl[1:0]){// Check if SNAN and report IE, see also Table 5-10IF (SRC1 = SNAN) THEN RETURN (QNAN(SRC1), set IE);IF (SRC2 = SNAN) THEN RETURN (QNAN(SRC2), set IE);Src1.exp := SRC1[62:52];Src1.fraction := SRC1[51:0];IF ((Src1.exp = 0 ) and (Src1.fraction != 0)) THEN// Src1 is a denormal numberIF DAZ THEN Src1.fraction := 0;ELSE IF (SRC2 <> QNAN) Set DE; FI;FI;Src2.exp := SRC2[62:52];Src2.fraction := SRC2[51:0];IF ((Src2.exp = 0) and (Src2.fraction !=0 )) THEN// Src2 is a denormal numberIF DAZ THEN Src2.fraction := 0;ELSE IF (SRC1 <> QNAN) Set DE; FI;FI;IF (SRC2 = QNAN) THEN{TMP[63:0] := SRC1[63:0]}ELSE IF(SRC1 = QNAN) THEN{TMP[63:0] := SRC2[63:0]}ELSE IF (Both SRC1, SRC2 are magnitude-0 and opposite-signed) TMP[63:0] := from Table 5-11ELSE IF (Both SRC1, SRC2 are magnitude-equal and opposite-signed and CmpOpCtl[1:0] > 01) TMP[63:0] := from Table 5-12ELSE Case(CmpOpCtl[1:0])00: TMP[63:0] := (SRC1[63:0] ≤ SRC2[63:0]) ? SRC1[63:0] : SRC2[63:0];01: TMP[63:0] := (SRC1[63:0] ≤ SRC2[63:0]) ? SRC2[63:0] : SRC1[63:0];10: TMP[63:0] := (ABS(SRC1[63:0]) ≤ ABS(SRC2[63:0])) ? SRC1[63:0] : SRC2[63:0];11: TMP[63:0] := (ABS(SRC1[63:0]) ≤ ABS(SRC2[63:0])) ? SRC2[63:0] : SRC1[63:0];ESAC;FI;Case(SignSelCtl[1:0])00: dest := (SRC1[63] << 63) OR (TMP[62:0]);// Preserve Src1 sign bit01: dest := TMP[63:0];// Preserve sign of compare result10: dest := (0 << 63) OR (TMP[62:0]);// Zero out sign bit11: dest := (1 << 63) OR (TMP[62:0]);// Set the sign bitESAC;RETURN dest[63:0];}CmpOpCtl[1:0]= imm8[1:0];SignSelCtl[1:0]=imm8[3:2];

image/svg+xmlVRANGEPD (EVEX encoded versions) (KL, VL) = (2, 128), (4, 256), (8, 512)FOR j := 0 TO KL-1i := j * 64IF k1[j] OR *no writemask* THENIF (EVEX.b == 1) AND (SRC2 *is memory*)THEN DEST[i+63:i] := RangeDP (SRC1[i+63:i], SRC2[63:0], CmpOpCtl[1:0], SignSelCtl[1:0]);ELSE DEST[i+63:i] := RangeDP (SRC1[i+63:i], SRC2[i+63:i], CmpOpCtl[1:0], SignSelCtl[1:0]);FI;ELSE IF *merging-masking*; merging-maskingTHEN *DEST[i+63:i] remains unchanged*ELSE ; zeroing-maskingDEST[i+63:i] = 0FI;FI;ENDFOR;DEST[MAXVL-1:VL] := 0The following example describes a common usage of this instruction for checking that the input operand is bound-ed between ±1023.VRANGEPD zmm_dst, zmm_src, zmm_1023, 02h;Where:zmm_dst is the destination operand.zmm_src is the input operand to compare against ±1023 (this is SRC1).zmm_1023 is the reference operand, contains the value of 1023 (and this is SRC2).IMM=02(imm8[1:0]='10) selects the Min Absolute value operation with selection of SRC1.sign.In case |zmm_src| < 1023 (i.e. SRC1 is smaller than 1023 in magnitude), then its value will be written intozmm_dst. Otherwise, the value stored in zmm_dst will get the value of 1023 (received on zmm_1023, which isSRC2).However, the sign control (imm8[3:2]='00) instructs to select the sign of SRC1 received from zmm_src. So, evenin the case of |zmm_src| ≥ 1023, the selected sign of SRC1 is kept. Thus, if zmm_src < -1023, the result of VRANGEPD will be the minimal value of -1023 while if zmm_src > +1023,the result of VRANGE will be the maximal value of +1023.

image/svg+xmlIntel C/C++ Compiler Intrinsic EquivalentVRANGEPD __m512d _mm512_range_pd ( __m512d a, __m512d b, int imm);VRANGEPD __m512d _mm512_range_round_pd ( __m512d a, __m512d b, int imm, int sae);VRANGEPD __m512d _mm512_mask_range_pd (__m512 ds, __mmask8 k, __m512d a, __m512d b, int imm);VRANGEPD __m512d _mm512_mask_range_round_pd (__m512d s, __mmask8 k, __m512d a, __m512d b, int imm, int sae);VRANGEPD __m512d _mm512_maskz_range_pd ( __mmask8 k, __m512d a, __m512d b, int imm);VRANGEPD __m512d _mm512_maskz_range_round_pd ( __mmask8 k, __m512d a, __m512d b, int imm, int sae);VRANGEPD __m256d _mm256_range_pd ( __m256d a, __m256d b, int imm);VRANGEPD __m256d _mm256_mask_range_pd (__m256d s, __mmask8 k, __m256d a, __m256d b, int imm);VRANGEPD __m256d _mm256_maskz_range_pd ( __mmask8 k, __m256d a, __m256d b, int imm);VRANGEPD __m128d _mm_range_pd ( __m128 a, __m128d b, int imm);VRANGEPD __m128d _mm_mask_range_pd (__m128 s, __mmask8 k, __m128d a, __m128d b, int imm);VRANGEPD __m128d _mm_maskz_range_pd ( __mmask8 k, __m128d a, __m128d b, int imm);SIMD Floating-Point ExceptionsInvalid, DenormalOther ExceptionsSee Table2-46, “Type E2 Class Exception Conditions”.

This UNOFFICIAL reference was generated from the official Intel® 64 and IA-32 Architectures Software Developer’s Manual by a dumb script. There is no guarantee that some parts aren't mangled or broken and is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.