diff --git a/Makefile b/Makefile
index f615010..07e942c 100644
--- a/Makefile
+++ b/Makefile
@@ -5,6 +5,7 @@ SPLIT = 10000
 INTEGER = 0
 PATTERN = '.*'
 TESTFLOAT3LEVEL = 2
+REPEAT = 1
 SPIKE_INSTALL = $(RISCV)
 OUTPUT = out/v$(VLEN)x$(XLEN)$(MODE)
 OUTPUT_STAGE1 = $(OUTPUT)/tests/stage1/
@@ -73,7 +74,7 @@ unittest:
 
 generate-stage1: clean-out build
 	@mkdir -p ${OUTPUT_STAGE1}
-	build/generator -VLEN ${VLEN} -XLEN ${XLEN} -split=${SPLIT} -integer=${INTEGER} -pattern='${PATTERN}' -testfloat3level='${TESTFLOAT3LEVEL}' -stage1output ${OUTPUT_STAGE1} -configs ${CONFIGS}
+	build/generator -VLEN ${VLEN} -XLEN ${XLEN} -split=${SPLIT} -integer=${INTEGER} -pattern='${PATTERN}' -testfloat3level='${TESTFLOAT3LEVEL}' -repeat='${REPEAT}' -stage1output ${OUTPUT_STAGE1} -configs ${CONFIGS}
 
 include Makefrag
 
diff --git a/Makefrag b/Makefrag
index 2f68b5b..a05b65d 100644
--- a/Makefrag
+++ b/Makefrag
@@ -251,13 +251,11 @@ tests = \
   vfmacc.vf-2 \
   vfmacc.vf-3 \
   vfmacc.vv-0 \
-  vfmacc.vv-1 \
   vfmadd.vf-0 \
   vfmadd.vf-1 \
   vfmadd.vf-2 \
   vfmadd.vf-3 \
   vfmadd.vv-0 \
-  vfmadd.vv-1 \
   vfmax.vf-0 \
   vfmax.vf-1 \
   vfmax.vf-2 \
@@ -275,13 +273,11 @@ tests = \
   vfmsac.vf-2 \
   vfmsac.vf-3 \
   vfmsac.vv-0 \
-  vfmsac.vv-1 \
   vfmsub.vf-0 \
   vfmsub.vf-1 \
   vfmsub.vf-2 \
   vfmsub.vf-3 \
   vfmsub.vv-0 \
-  vfmsub.vv-1 \
   vfmul.vf-0 \
   vfmul.vf-1 \
   vfmul.vf-2 \
@@ -303,25 +299,21 @@ tests = \
   vfnmacc.vf-2 \
   vfnmacc.vf-3 \
   vfnmacc.vv-0 \
-  vfnmacc.vv-1 \
   vfnmadd.vf-0 \
   vfnmadd.vf-1 \
   vfnmadd.vf-2 \
   vfnmadd.vf-3 \
   vfnmadd.vv-0 \
-  vfnmadd.vv-1 \
   vfnmsac.vf-0 \
   vfnmsac.vf-1 \
   vfnmsac.vf-2 \
   vfnmsac.vf-3 \
   vfnmsac.vv-0 \
-  vfnmsac.vv-1 \
   vfnmsub.vf-0 \
   vfnmsub.vf-1 \
   vfnmsub.vf-2 \
   vfnmsub.vf-3 \
   vfnmsub.vv-0 \
-  vfnmsub.vv-1 \
   vfrdiv.vf-0 \
   vfrdiv.vf-1 \
   vfrdiv.vf-2 \
diff --git a/README.md b/README.md
index 98e1aac..ff61336 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,8 @@ Options:
 - `INTEGER`, default is 0, set to 1 if you don't want float tests (i.e. for Zve32x or Zve64x)
 - `PATTERN`, default is `.*`, set to a valid regex to generate the tests of your interests (e.g. `PATTERN='^v[ls].+\.v$'` to generate load/store tests)
 - `TESTFLOAT3LEVEL`, default is 2, must be one of 1 or 2, testing level for testfloat3 generated cases.
-- `TEST_MODE` , default is `self`, set to `cosim` if you want to generate faster tests without self-verification (to be used with co-simulators).
+- `TEST_MODE`, default is `self`, set to `cosim` if you want to generate faster tests without self-verification (to be used with co-simulators).
+- `REPEAT`, default is `1`, set to greater value to repeat the same V instruction n times for a better coverage (only valid for float instructions).
 
 For example, to generate `isa=rv32gcv varch=vlen:128,elen:32 mode=machine` tests, use `make -e VLEN=128 XLEN=32 MODE=machine -j$(nproc)`.
 
diff --git a/generator/insn.go b/generator/insn.go
index 58ee5c3..5fcf9dc 100644
--- a/generator/insn.go
+++ b/generator/insn.go
@@ -16,8 +16,9 @@ import (
 type insnFormat string
 
 type Option struct {
-	VLEN VLEN
-	XLEN XLEN
+	VLEN   VLEN
+	XLEN   XLEN
+	Repeat int
 }
 
 const minStride = -1 // Must be negative
@@ -52,14 +53,14 @@ func (t *TestData) String() string {
 }
 
 type Insn struct {
-	Name     string     `toml:"name"`
-	Format   insnFormat `toml:"format"`
-	NoTestfloat3 bool `toml:"notestfloat3"`
-	Vxrm     bool       `toml:"vxrm"`
-	Vxsat    bool       `toml:"vxsat"`
-	Tests    tests      `toml:"tests"`
-	Option   Option     `toml:"-"`
-	TestData *TestData
+	Name         string     `toml:"name"`
+	Format       insnFormat `toml:"format"`
+	NoTestfloat3 bool       `toml:"notestfloat3"`
+	Vxrm         bool       `toml:"vxrm"`
+	Vxsat        bool       `toml:"vxsat"`
+	Tests        tests      `toml:"tests"`
+	Option       Option     `toml:"-"`
+	TestData     *TestData
 }
 
 const (
diff --git a/generator/insn_fdvs2.go b/generator/insn_fdvs2.go
index 7d5b1cb..c17d98b 100644
--- a/generator/insn_fdvs2.go
+++ b/generator/insn_fdvs2.go
@@ -15,22 +15,24 @@ func (i *Insn) genCodeFdVs2(pos int) []string {
 
 		vd := int(c.LMUL1)
 		vs2 := int(c.LMUL1) * 2
-		builder.WriteString(i.gWriteRandomData(LMUL(1)))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, c.LMUL1, SEW(8)))
 
-		builder.WriteString(i.gWriteTestData(true, !i.NoTestfloat3, c.LMUL1, c.SEW, 0, 1))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vs2, c.LMUL1, c.SEW))
+		for r := 0; r < i.Option.Repeat; r += 1 {
+			builder.WriteString(i.gWriteRandomData(LMUL(1)))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, c.LMUL1, SEW(8)))
+			builder.WriteString(i.gWriteTestData(true, !i.NoTestfloat3, r != 0, c.LMUL1, c.SEW, 0, 1))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vs2, c.LMUL1, c.SEW))
 
-		builder.WriteString("# -------------- TEST BEGIN --------------\n")
-		builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
-		builder.WriteString(fmt.Sprintf("%s f0, v%d\n", i.Name, vs2))
-		builder.WriteString("# -------------- TEST END   --------------\n")
+			builder.WriteString("# -------------- TEST BEGIN --------------\n")
+			builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
+			builder.WriteString(fmt.Sprintf("%s f0, v%d\n", i.Name, vs2))
+			builder.WriteString("# -------------- TEST END   --------------\n")
 
-		builder.WriteString(i.gMoveScalarToVector("f0", vd, c.SEW))
+			builder.WriteString(i.gMoveScalarToVector("f0", vd, c.SEW))
 
-		builder.WriteString(i.gResultDataAddr())
-		builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd, c.LMUL1, c.SEW))
-		builder.WriteString(i.gMagicInsn(vd))
+			builder.WriteString(i.gResultDataAddr())
+			builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd, c.LMUL1, c.SEW))
+			builder.WriteString(i.gMagicInsn(vd))
+		}
 
 		res = append(res, builder.String())
 	}
diff --git a/generator/insn_g.go b/generator/insn_g.go
index 095c3bf..bb2a0cd 100644
--- a/generator/insn_g.go
+++ b/generator/insn_g.go
@@ -57,11 +57,15 @@ func (i *Insn) gWriteIndexData(dataLmul1 LMUL, offsetLmul1 LMUL, n int, dataSew
 }
 
 func (i *Insn) gWriteIntegerTestData(lmul LMUL, sew SEW, idx int) string {
-	return i.gWriteTestData(false, false, lmul, sew, idx, 0)
+	return i.gWriteTestData(false, false, false, lmul, sew, idx, 0)
 }
 
-func (i *Insn) gWriteTestData(float bool, testfloat bool, lmul LMUL, sew SEW, idx int, numops int) string {
-	if float && testfloat {
+func (i *Insn) gWriteTestData(float bool, testfloat bool, cont bool, lmul LMUL, sew SEW, idx int, numops int) string {
+	if !float && cont {
+		panic("unreachable")
+	}
+
+	if float && testfloat && !cont {
 		testfloat3.InitF32(numops)
 		testfloat3.InitF64(numops)
 	}
@@ -77,24 +81,27 @@ func (i *Insn) gWriteTestData(float bool, testfloat bool, lmul LMUL, sew SEW, id
 	builder := strings.Builder{}
 	buf := &bytes.Buffer{}
 	for a := 0; a < (nBytes / (int(sew) / 8)); a++ {
-		b := a % len(cases)
 		switch sew {
 		case 8:
+			b := a % len(cases)
 			_ = binary.Write(buf, binary.LittleEndian, convNum[uint8](cases[b][idx]))
 		case 16:
+			b := a % len(cases)
 			_ = binary.Write(buf, binary.LittleEndian, convNum[uint16](cases[b][idx]))
 		case 32:
 			// Manual test cases exhausted, use testfloat3 to generate new ones.
-			if float && testfloat && a >= len(cases) {
+			if (float && testfloat && a >= len(cases)) || cont {
 				_ = binary.Write(buf, binary.LittleEndian, math.Float32bits(nextf32()))
 			} else {
+				b := a % len(cases)
 				_ = binary.Write(buf, binary.LittleEndian, convNum[uint32](cases[b][idx]))
 			}
 		case 64:
 			// Manual test cases exhausted, use testfloat3 to generate new ones.
-			if float && testfloat && a >= len(cases) {
+			if (float && testfloat && a >= len(cases)) || cont {
 				_ = binary.Write(buf, binary.LittleEndian, math.Float64bits(nextf64()))
 			} else {
+				b := a % len(cases)
 				_ = binary.Write(buf, binary.LittleEndian, convNum[uint64](cases[b][idx]))
 			}
 		}
diff --git a/generator/insn_vdfs1vs2vm.go b/generator/insn_vdfs1vs2vm.go
index 1fd8ca0..7714e3e 100644
--- a/generator/insn_vdfs1vs2vm.go
+++ b/generator/insn_vdfs1vs2vm.go
@@ -35,31 +35,34 @@ func (i *Insn) genCodeVdFs1Vs2Vm(pos int) []string {
 
 		vd := int(vdEMUL1)
 		vs2 := vd * 2
-		builder.WriteString(i.gWriteTestData(true, !i.NoTestfloat3, vdEMUL1, vdEEW, 0, 3))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, vdEMUL1, vdEEW))
 
-		builder.WriteString(i.gWriteTestData(true, !i.NoTestfloat3, c.LMUL1, c.SEW, 2, 3))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vs2, c.LMUL1, c.SEW))
+		for r := 0; r < i.Option.Repeat; r += 1 {
+			builder.WriteString(i.gWriteTestData(true, !i.NoTestfloat3, r != 0, vdEMUL1, vdEEW, 0, 2))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, vdEMUL1, vdEEW))
 
-		cases := i.testCases(true, c.SEW)
-		for a := 0; a < len(cases); a++ {
-			builder.WriteString("# -------------- TEST BEGIN --------------\n")
-			switch c.SEW {
-			case 32:
-				builder.WriteString(fmt.Sprintf("li s0, 0x%x\n", convNum[uint32](cases[a][1])))
-				builder.WriteString(fmt.Sprintf("fmv.w.x f0, s0\n"))
-			case 64:
-				builder.WriteString(fmt.Sprintf("li s0, 0x%x\n", convNum[uint64](cases[a][1])))
-				builder.WriteString(fmt.Sprintf("fmv.d.x f0, s0\n"))
-			}
-			builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
-			builder.WriteString(fmt.Sprintf("%s v%d, f0, v%d%s\n",
-				i.Name, vd, vs2, v0t(c.Mask)))
-			builder.WriteString("# -------------- TEST END   --------------\n")
+			builder.WriteString(i.gWriteTestData(true, !i.NoTestfloat3, r != 0, c.LMUL1, c.SEW, 1, 2))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vs2, c.LMUL1, c.SEW))
+
+			cases := i.testCases(true, c.SEW)
+			for a := 0; a < len(cases); a++ {
+				builder.WriteString("# -------------- TEST BEGIN --------------\n")
+				switch c.SEW {
+				case 32:
+					builder.WriteString(fmt.Sprintf("li s0, 0x%x\n", convNum[uint32](cases[a][1])))
+					builder.WriteString(fmt.Sprintf("fmv.w.x f0, s0\n"))
+				case 64:
+					builder.WriteString(fmt.Sprintf("li s0, 0x%x\n", convNum[uint64](cases[a][1])))
+					builder.WriteString(fmt.Sprintf("fmv.d.x f0, s0\n"))
+				}
+				builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
+				builder.WriteString(fmt.Sprintf("%s v%d, f0, v%d%s\n",
+					i.Name, vd, vs2, v0t(c.Mask)))
+				builder.WriteString("# -------------- TEST END   --------------\n")
 
-			builder.WriteString(i.gResultDataAddr())
-			builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd, vdEMUL1, vdEEW))
-			builder.WriteString(i.gMagicInsn(vd))
+				builder.WriteString(i.gResultDataAddr())
+				builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd, vdEMUL1, vdEEW))
+				builder.WriteString(i.gMagicInsn(vd))
+			}
 		}
 
 		res = append(res, builder.String())
diff --git a/generator/insn_vdvs1.go b/generator/insn_vdvs1.go
index 54b4eca..75ec794 100644
--- a/generator/insn_vdvs1.go
+++ b/generator/insn_vdvs1.go
@@ -18,7 +18,7 @@ func (i *Insn) genCodeVdVs1(pos int) []string {
 		builder.WriteString(i.gWriteRandomData(c.LMUL1))
 		builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, c.LMUL1, c.SEW))
 
-		builder.WriteString(i.gWriteTestData(false, false, c.LMUL1, c.SEW, 0, 1))
+		builder.WriteString(i.gWriteTestData(false, false, false, c.LMUL1, c.SEW, 0, 1))
 		builder.WriteString(i.gLoadDataIntoRegisterGroup(vs1, c.LMUL1, c.SEW))
 
 		builder.WriteString("# -------------- TEST BEGIN --------------\n")
diff --git a/generator/insn_vdvs1vs2vm.go b/generator/insn_vdvs1vs2vm.go
index 0274f2c..d41b989 100644
--- a/generator/insn_vdvs1vs2vm.go
+++ b/generator/insn_vdvs1vs2vm.go
@@ -43,28 +43,28 @@ func (i *Insn) genCodeVdVs1Vs2Vm(pos int) []string {
 			vd * 2,
 			vd*2 + int(vs1EMUL1),
 		}
-		builder.WriteString(i.gWriteRandomData(vdEMUL1))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, vdEMUL1, SEW(8)))
 
-		builder.WriteString(i.gWriteTestData(float, !i.NoTestfloat3, vdEMUL1, vdEEW, 0, 3))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, vdEMUL1, vdEEW))
+		for r := 0; r < i.Option.Repeat; r += 1 {
+			builder.WriteString(i.gWriteTestData(float, !i.NoTestfloat3, r != 0, vdEMUL1, vdEEW, 0, 3))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, vdEMUL1, vdEEW))
 
-		builder.WriteString(i.gWriteTestData(float, !i.NoTestfloat3, vs1EMUL1, vs1EEW, 1, 3))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vss[1], vs1EMUL1, vs1EEW))
+			builder.WriteString(i.gWriteTestData(float, !i.NoTestfloat3, r != 0, vs1EMUL1, vs1EEW, 1, 3))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vss[1], vs1EMUL1, vs1EEW))
 
-		builder.WriteString(i.gWriteTestData(float, !i.NoTestfloat3, c.LMUL1, c.SEW, 2, 3))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vss[0], c.LMUL1, c.SEW))
+			builder.WriteString(i.gWriteTestData(float, !i.NoTestfloat3, r != 0, c.LMUL1, c.SEW, 2, 3))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vss[0], c.LMUL1, c.SEW))
 
-		builder.WriteString("# -------------- TEST BEGIN --------------\n")
-		builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
+			builder.WriteString("# -------------- TEST BEGIN --------------\n")
+			builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
 
-		builder.WriteString(fmt.Sprintf("%s v%d, v%d, v%d%s\n",
-			i.Name, vd, vss[1], vss[0], v0t(c.Mask)))
-		builder.WriteString("# -------------- TEST END   --------------\n")
+			builder.WriteString(fmt.Sprintf("%s v%d, v%d, v%d%s\n",
+				i.Name, vd, vss[1], vss[0], v0t(c.Mask)))
+			builder.WriteString("# -------------- TEST END   --------------\n")
 
-		builder.WriteString(i.gResultDataAddr())
-		builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd, vdEMUL1, vdEEW))
-		builder.WriteString(i.gMagicInsn(vd))
+			builder.WriteString(i.gResultDataAddr())
+			builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd, vdEMUL1, vdEEW))
+			builder.WriteString(i.gMagicInsn(vd))
+		}
 
 		res = append(res, builder.String())
 	}
diff --git a/generator/insn_vdvs2fs1v0.go b/generator/insn_vdvs2fs1v0.go
index ad586af..dee2885 100644
--- a/generator/insn_vdvs2fs1v0.go
+++ b/generator/insn_vdvs2fs1v0.go
@@ -18,31 +18,35 @@ func (i *Insn) genCodeVdVs2Fs1V0(pos int) []string {
 
 		vd := int(c.LMUL1)
 		vs2 := 2 * int(c.LMUL1)
-		builder.WriteString(i.gWriteRandomData(c.LMUL1))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, c.LMUL1, SEW(8)))
-
-		builder.WriteString(i.gWriteTestData(true, !i.NoTestfloat3, c.LMUL1, c.SEW, 1, 2))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vs2, c.LMUL1, c.SEW))
-		cases := i.testCases(true, c.SEW)
-		for a := 0; a < len(cases); a++ {
-			builder.WriteString("# -------------- TEST BEGIN --------------\n")
-			switch c.SEW {
-			case 32:
-				builder.WriteString(fmt.Sprintf("li s0, 0x%x\n", convNum[uint32](cases[a][0])))
-				builder.WriteString(fmt.Sprintf("fmv.w.x f0, s0\n"))
-			case 64:
-				builder.WriteString(fmt.Sprintf("li s0, 0x%x\n", convNum[uint64](cases[a][0])))
-				builder.WriteString(fmt.Sprintf("fmv.d.x f0, s0\n"))
+
+		for r := 0; r < i.Option.Repeat; r += 1 {
+			builder.WriteString(i.gWriteRandomData(c.LMUL1))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, c.LMUL1, SEW(8)))
+
+			builder.WriteString(i.gWriteTestData(true, !i.NoTestfloat3, r != 0, c.LMUL1, c.SEW, 0, 1))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vs2, c.LMUL1, c.SEW))
+			cases := i.testCases(true, c.SEW)
+			for a := 0; a < len(cases); a++ {
+				builder.WriteString("# -------------- TEST BEGIN --------------\n")
+				switch c.SEW {
+				case 32:
+					builder.WriteString(fmt.Sprintf("li s0, 0x%x\n", convNum[uint32](cases[a][0])))
+					builder.WriteString(fmt.Sprintf("fmv.w.x f0, s0\n"))
+				case 64:
+					builder.WriteString(fmt.Sprintf("li s0, 0x%x\n", convNum[uint64](cases[a][0])))
+					builder.WriteString(fmt.Sprintf("fmv.d.x f0, s0\n"))
+				}
+				builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
+				builder.WriteString(fmt.Sprintf("%s v%d, v%d, f0, v0\n",
+					i.Name, vd, vs2))
+				builder.WriteString("# -------------- TEST END   --------------\n")
+
+				builder.WriteString(i.gResultDataAddr())
+				builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd, c.LMUL1, c.SEW))
+				builder.WriteString(i.gMagicInsn(vd))
 			}
-			builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
-			builder.WriteString(fmt.Sprintf("%s v%d, v%d, f0, v0\n",
-				i.Name, vd, vs2))
-			builder.WriteString("# -------------- TEST END   --------------\n")
-
-			builder.WriteString(i.gResultDataAddr())
-			builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd, c.LMUL1, c.SEW))
-			builder.WriteString(i.gMagicInsn(vd))
 		}
+
 		res = append(res, builder.String())
 	}
 
diff --git a/generator/insn_vdvs2fs1vm.go b/generator/insn_vdvs2fs1vm.go
index aa1dbb4..91076ba 100644
--- a/generator/insn_vdvs2fs1vm.go
+++ b/generator/insn_vdvs2fs1vm.go
@@ -36,31 +36,34 @@ func (i *Insn) genCodeVdVs2Fs1Vm(pos int) []string {
 
 		vd := int(vdEMUL1)
 		vs2 := vd * 2
-		builder.WriteString(i.gWriteRandomData(vdEMUL1))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, vdEMUL1, SEW(8)))
 
-		builder.WriteString(i.gWriteTestData(true, !i.NoTestfloat3, c.LMUL1, c.SEW, 1, 2))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vs2, c.LMUL1, c.SEW))
+		for r := 0; r < i.Option.Repeat; r += 1 {
+			builder.WriteString(i.gWriteRandomData(vdEMUL1))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, vdEMUL1, SEW(8)))
 
-		cases := i.testCases(true, c.SEW)
-		for a := 0; a < len(cases); a++ {
-			builder.WriteString("# -------------- TEST BEGIN --------------\n")
-			switch c.SEW {
-			case 32:
-				builder.WriteString(fmt.Sprintf("li s0, 0x%x\n", convNum[uint32](cases[a][0])))
-				builder.WriteString(fmt.Sprintf("fmv.w.x f0, s0\n"))
-			case 64:
-				builder.WriteString(fmt.Sprintf("li s0, 0x%x\n", convNum[uint64](cases[a][0])))
-				builder.WriteString(fmt.Sprintf("fmv.d.x f0, s0\n"))
-			}
-			builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
-			builder.WriteString(fmt.Sprintf("%s v%d, v%d, f0%s\n",
-				i.Name, vd, vs2, v0t(c.Mask)))
-			builder.WriteString("# -------------- TEST END   --------------\n")
+			builder.WriteString(i.gWriteTestData(true, !i.NoTestfloat3, r != 0, c.LMUL1, c.SEW, 0, 1))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vs2, c.LMUL1, c.SEW))
+
+			cases := i.testCases(true, c.SEW)
+			for a := 0; a < len(cases); a++ {
+				builder.WriteString("# -------------- TEST BEGIN --------------\n")
+				switch c.SEW {
+				case 32:
+					builder.WriteString(fmt.Sprintf("li s0, 0x%x\n", convNum[uint32](cases[a][0])))
+					builder.WriteString(fmt.Sprintf("fmv.w.x f0, s0\n"))
+				case 64:
+					builder.WriteString(fmt.Sprintf("li s0, 0x%x\n", convNum[uint64](cases[a][0])))
+					builder.WriteString(fmt.Sprintf("fmv.d.x f0, s0\n"))
+				}
+				builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
+				builder.WriteString(fmt.Sprintf("%s v%d, v%d, f0%s\n",
+					i.Name, vd, vs2, v0t(c.Mask)))
+				builder.WriteString("# -------------- TEST END   --------------\n")
 
-			builder.WriteString(i.gResultDataAddr())
-			builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd, vdEMUL1, vdEEW))
-			builder.WriteString(i.gMagicInsn(vd))
+				builder.WriteString(i.gResultDataAddr())
+				builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd, vdEMUL1, vdEEW))
+				builder.WriteString(i.gMagicInsn(vd))
+			}
 		}
 
 		res = append(res, builder.String())
diff --git a/generator/insn_vdvs2vm.go b/generator/insn_vdvs2vm.go
index 55340c0..c56a7e9 100644
--- a/generator/insn_vdvs2vm.go
+++ b/generator/insn_vdvs2vm.go
@@ -40,7 +40,7 @@ func (i *Insn) genCodeVdVs2Vm(pos int) []string {
 		builder.WriteString(i.gWriteRandomData(vdEMUL1))
 		builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, vdEMUL1, SEW(8)))
 
-		builder.WriteString(i.gWriteTestData(float, !i.NoTestfloat3, vs2EMUL1, vs2EEW, 0, 1))
+		builder.WriteString(i.gWriteTestData(float, !i.NoTestfloat3, false, vs2EMUL1, vs2EEW, 0, 1))
 		builder.WriteString(i.gLoadDataIntoRegisterGroup(vs2, vs2EMUL1, vs2EEW))
 
 		builder.WriteString("# -------------- TEST BEGIN --------------\n")
diff --git a/generator/insn_vdvs2vs1vm.go b/generator/insn_vdvs2vs1vm.go
index 3b636f5..4694304 100644
--- a/generator/insn_vdvs2vs1vm.go
+++ b/generator/insn_vdvs2vs1vm.go
@@ -48,25 +48,28 @@ func (i *Insn) genCodeVdVs2Vs1Vm(pos int) []string {
 			vd * 2,
 			vd*2 + int(vs2EMUL1),
 		}
-		builder.WriteString(i.gWriteRandomData(vdEMUL1))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, vdEMUL1, SEW(8)))
 
-		builder.WriteString(i.gWriteTestData(float, !i.NoTestfloat3, c.LMUL1, c.SEW, 0, 2))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vss[0], c.LMUL1, c.SEW))
+		for r := 0; r < i.Option.Repeat; r += 1 {
+			builder.WriteString(i.gWriteRandomData(vdEMUL1))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vd, vdEMUL1, SEW(8)))
 
-		builder.WriteString(i.gWriteTestData(float, !i.NoTestfloat3, vs2EMUL1, vs2EEW, 1, 2))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(vss[1], vs2EMUL1, vs2EEW))
+			builder.WriteString(i.gWriteTestData(float, !i.NoTestfloat3, r != 0, c.LMUL1, c.SEW, 0, 2))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vss[0], c.LMUL1, c.SEW))
 
-		builder.WriteString("# -------------- TEST BEGIN --------------\n")
-		builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
+			builder.WriteString(i.gWriteTestData(float, !i.NoTestfloat3, r != 0, vs2EMUL1, vs2EEW, 1, 2))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(vss[1], vs2EMUL1, vs2EEW))
 
-		builder.WriteString(fmt.Sprintf("%s v%d, v%d, v%d%s\n",
-			i.Name, vd, vss[1], vss[0], v0t(c.Mask)))
-		builder.WriteString("# -------------- TEST END   --------------\n")
+			builder.WriteString("# -------------- TEST BEGIN --------------\n")
+			builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
 
-		builder.WriteString(i.gResultDataAddr())
-		builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd, vdEMUL1, vdEEW))
-		builder.WriteString(i.gMagicInsn(vd))
+			builder.WriteString(fmt.Sprintf("%s v%d, v%d, v%d%s\n",
+				i.Name, vd, vss[1], vss[0], v0t(c.Mask)))
+			builder.WriteString("# -------------- TEST END   --------------\n")
+
+			builder.WriteString(i.gResultDataAddr())
+			builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd, vdEMUL1, vdEEW))
+			builder.WriteString(i.gMagicInsn(vd))
+		}
 
 		res = append(res, builder.String())
 	}
diff --git a/main.go b/main.go
index c558231..ad840dc 100644
--- a/main.go
+++ b/main.go
@@ -32,6 +32,7 @@ var patternF = flag.String("pattern", ".*", "regex to filter out tests.")
 var stage1OutputDirF = flag.String("stage1output", "", "stage1 output directory.")
 var configsDirF = flag.String("configs", "configs/", "config files directory.")
 var testfloat3LevelF = flag.Int("testfloat3level", 2, "testfloat3 testing level (1 or 2).")
+var repeatF = flag.Int("repeat", 1, "repeat same V instruction n times for a better coverage (only valid for float instructions).")
 
 func main() {
 	flag.Parse()
@@ -47,13 +48,12 @@ func main() {
 		fatalIf(errors.New("-testfloat3level must be 1 or 2"))
 	}
 
-	testfloat3.SetLevel(*testfloat3LevelF)
-
-	option := generator.Option{
-		VLEN: generator.VLEN(*vlenF),
-		XLEN: generator.XLEN(*xlenF),
+	if *repeatF <= 0 {
+		fatalIf(errors.New("-repeat must greater than 0"))
 	}
 
+	testfloat3.SetLevel(*testfloat3LevelF)
+
 	files, err := os.ReadDir(*configsDirF)
 	fatalIf(err)
 
@@ -63,7 +63,7 @@ func main() {
 	lk := sync.Mutex{}
 	wg := sync.WaitGroup{}
 	for _, file := range files {
-		if *integerF && strings.HasPrefix(file.Name(), "vf") {
+		if *integerF && (strings.HasPrefix(file.Name(), "vf") || strings.HasPrefix(file.Name(), "vmf")) && !strings.HasPrefix(file.Name(), "vfirst") {
 			continue
 		}
 
@@ -87,6 +87,14 @@ func main() {
 			contents, err := os.ReadFile(fp)
 			fatalIf(err)
 
+			option := generator.Option{
+				VLEN:   generator.VLEN(*vlenF),
+				XLEN:   generator.XLEN(*xlenF),
+				Repeat: *repeatF,
+			}
+			if (!strings.HasPrefix(file.Name(), "vf") && !strings.HasPrefix(file.Name(), "vmf")) || strings.HasPrefix(file.Name(), "vfirst") {
+				option.Repeat = 1
+			}
 			insn, err := generator.ReadInsnFromToml(contents, option)
 			fatalIf(err)
 
diff --git a/single/single.go b/single/single.go
index 16a94df..65ff270 100644
--- a/single/single.go
+++ b/single/single.go
@@ -7,6 +7,7 @@ import (
 	"os"
 	"path/filepath"
 	"regexp"
+	"strings"
 
 	"github.com/ksco/riscv-vector-tests/generator"
 	"github.com/ksco/riscv-vector-tests/testfloat3"
@@ -25,6 +26,7 @@ var xlenF = flag.Int("XLEN", 64, "")
 var outputFileF = flag.String("outputfile", "", "output file name.")
 var configFileF = flag.String("configfile", "", "config file path.")
 var testfloat3LevelF = flag.Int("testfloat3level", 2, "testfloat3 testing level (1 or 2).")
+var repeatF = flag.Int("repeat", 1, "repeat same V instruction n times for a better coverage (only valid for float instructions).")
 
 func main() {
 	flag.Parse()
@@ -40,17 +42,25 @@ func main() {
 		fatalIf(errors.New("-testfloat3level must be 1 or 2"))
 	}
 
+	if *repeatF <= 0 {
+		fatalIf(errors.New("-repeat must greater than 0"))
+	}
+
 	testfloat3.SetLevel(*testfloat3LevelF)
 
 	option := generator.Option{
-		VLEN: generator.VLEN(*vlenF),
-		XLEN: generator.XLEN(*xlenF),
+		VLEN:   generator.VLEN(*vlenF),
+		XLEN:   generator.XLEN(*xlenF),
+		Repeat: *repeatF,
 	}
 
 	fp := *configFileF
 	contents, err := os.ReadFile(fp)
 	fatalIf(err)
 
+	if (!strings.HasPrefix(filepath.Base(fp), "vf") && !strings.HasPrefix(filepath.Base(fp), "vmf")) || strings.HasPrefix(filepath.Base(fp), "vfirst") {
+		option.Repeat = 1
+	}
 	insn, err := generator.ReadInsnFromToml(contents, option)
 	fatalIf(err)