diff --git a/generator/insn_vdrs1mrs2vm.go b/generator/insn_vdrs1mrs2vm.go
index 300753e..e3e4646 100644
--- a/generator/insn_vdrs1mrs2vm.go
+++ b/generator/insn_vdrs1mrs2vm.go
@@ -3,6 +3,7 @@ package generator
 import (
 	"fmt"
 	"strings"
+	"math"
 )
 
 func (i *Insn) genCodeVdRs1mRs2Vm(pos int) []string {
@@ -17,47 +18,65 @@ func (i *Insn) genCodeVdRs1mRs2Vm(pos int) []string {
 
 	for _, c := range combinations[pos:] {
 		builder := strings.Builder{}
-		builder.WriteString(c.initialize())
-
-		builder.WriteString(i.gWriteRandomData(LMUL(1)))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(0, LMUL(1), SEW(32)))
-
-		vd := int(c.LMUL1)
-		builder.WriteString(i.gWriteRandomData(c.LMUL1))
-		for nf := 0; nf < nfields; nf++ {
-			builder.WriteString(i.gLoadDataIntoRegisterGroup(vd+(nf*int(c.LMUL1)), c.LMUL1, c.SEW))
-		}
-		builder.WriteString(i.gWriteIntegerTestData(c.LMUL1*LMUL(nfields), c.SEW, 0))
+		var sew SEW = 8 // sew is data width, c.SEW is offset width
+		for ; sew <= SEW(i.Option.XLEN); sew <<= 1 {
+			if int(sew) > int(float64(i.Option.XLEN)*float64(c.LMUL)) {
+				continue
+			}
+			emul := (float64(c.SEW) / float64(sew)) * float64(c.LMUL) * float64(nfields)
+			if emul > 8 || emul < 1./8 {
+				continue
+			}
+			emul = math.Max(emul, 1) // offset lmul
+			builder.WriteString(c.initialize())
 
-		builder.WriteString("# -------------- TEST BEGIN --------------\n")
-		builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
-		builder.WriteString(fmt.Sprintf("%s v%d, (a0), zero%s\n", i.Name, vd, v0t(c.Mask)))
-		builder.WriteString("# -------------- TEST END   --------------\n")
+			builder.WriteString(i.gWriteRandomData(LMUL(1)))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(0, LMUL(1), SEW(32)))
 
-		builder.WriteString(i.gResultDataAddr())
-		builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd, c.LMUL1, c.SEW))
-		builder.WriteString(i.gMagicInsn(vd, c.LMUL1))
+			lmul1 := LMUL(math.Max((float64(c.SEW)/float64(sew))*float64(c.LMUL), 1))
+			vd := int(lmul1)
 
-		for _, stride := range []int{minStride, 0, 1, maxStride} {
-			stride = stride * int(c.SEW) / 8
-			builder.WriteString(i.gWriteRandomData(c.LMUL1))
+			builder.WriteString(i.gWriteIntegerTestData(lmul1*LMUL(nfields), sew, 0))			
 			for nf := 0; nf < nfields; nf++ {
-				builder.WriteString(i.gLoadDataIntoRegisterGroup(vd+(nf*int(c.LMUL1)), c.LMUL1, c.SEW))
+				builder.WriteString(i.gLoadDataIntoRegisterGroup(vd+(nf*int(lmul1)), lmul1, sew))
+				builder.WriteString(fmt.Sprintf("li a5, %d\n", i.vlenb()*int(lmul1)))
+				builder.WriteString("add a0, a0, a5\n")
 			}
-			builder.WriteString(i.gWriteIntegerTestData(c.LMUL1*LMUL(nfields*stride), c.SEW, 0))
-			builder.WriteString(fmt.Sprintf("li a5, %d\n", -minStride*i.vlenb()*int(c.LMUL1)))
-			builder.WriteString("add a0, a0, a5\n")
 
 			builder.WriteString("# -------------- TEST BEGIN --------------\n")
-			builder.WriteString(fmt.Sprintf("li s0, %d # stride\n", stride))
-			builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
-			builder.WriteString(fmt.Sprintf("%s v%d, (a0), s0%s\n", i.Name, vd, v0t(c.Mask)))
+			builder.WriteString(i.gVsetvli(c.Vl, sew, c.LMUL))
+			builder.WriteString(fmt.Sprintf("%s v%d, (a0), zero%s\n", i.Name, vd, v0t(c.Mask)))
 			builder.WriteString("# -------------- TEST END   --------------\n")
 
 			builder.WriteString(i.gResultDataAddr())
 			for nf := 0; nf < nfields; nf++ {
-				builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd+(nf*int(c.LMUL1)), c.LMUL1, c.SEW))
-				builder.WriteString(i.gMagicInsn(vd+(nf*int(c.LMUL1)), c.LMUL1))
+				builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd+(nf*int(lmul1)), lmul1, sew))
+				builder.WriteString(i.gMagicInsn(vd+(nf*int(lmul1)), lmul1))
+			}
+
+			for _, stride := range []int{minStride, 0, 1, maxStride} {
+				stride = stride * int(c.SEW) / 8
+				
+				builder.WriteString(i.gWriteIntegerTestData(lmul1*LMUL(nfields), sew, 0))
+				for nf := 0; nf < nfields; nf++ {
+					builder.WriteString(i.gLoadDataIntoRegisterGroup(vd+(nf*int(lmul1)), lmul1, sew))
+					builder.WriteString(fmt.Sprintf("li a5, %d\n", i.vlenb()*int(lmul1)))
+					builder.WriteString("add a0, a0, a5\n")
+				}
+				builder.WriteString(fmt.Sprintf("li a5, %d\n", -minStride*i.vlenb()*int(c.LMUL1)))
+				builder.WriteString("add a0, a0, a5\n")
+
+				builder.WriteString("# -------------- TEST BEGIN --------------\n")
+				builder.WriteString(fmt.Sprintf("li s0, %d # stride\n", stride))
+				builder.WriteString(i.gVsetvli(c.Vl, sew, c.LMUL))
+				builder.WriteString(fmt.Sprintf("%s v%d, (a0), s0%s\n", i.Name, vd, v0t(c.Mask)))
+				builder.WriteString("# -------------- TEST END   --------------\n")
+
+				builder.WriteString(i.gResultDataAddr())
+				for nf := 0; nf < nfields; nf++ {
+					builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd+(nf*int(lmul1)), lmul1, sew))
+					builder.WriteString(i.gMagicInsn(vd+(nf*int(lmul1)), lmul1))
+				}
 			}
 		}
 		res = append(res, builder.String())
diff --git a/generator/insn_vdrs1mvm.go b/generator/insn_vdrs1mvm.go
index a4d887e..be26163 100644
--- a/generator/insn_vdrs1mvm.go
+++ b/generator/insn_vdrs1mvm.go
@@ -3,6 +3,7 @@ package generator
 import (
 	"fmt"
 	"strings"
+	"math"
 )
 
 func (i *Insn) genCodeVdRs1mVm(pos int) []string {
@@ -17,27 +18,41 @@ func (i *Insn) genCodeVdRs1mVm(pos int) []string {
 
 	for _, c := range combinations[pos:] {
 		builder := strings.Builder{}
-		builder.WriteString(c.initialize())
-
-		builder.WriteString(i.gWriteRandomData(LMUL(1)))
-		builder.WriteString(i.gLoadDataIntoRegisterGroup(0, LMUL(1), SEW(32)))
-
-		vd := int(c.LMUL1)
-		builder.WriteString(i.gWriteRandomData(c.LMUL1))
-		for nf := 0; nf < nfields; nf++ {
-			builder.WriteString(i.gLoadDataIntoRegisterGroup(vd+(nf*int(c.LMUL1)), c.LMUL1, c.SEW))
-		}
-		builder.WriteString(i.gWriteIntegerTestData(c.LMUL1*LMUL(nfields), c.SEW, 0))
-
-		builder.WriteString("# -------------- TEST BEGIN --------------\n")
-		builder.WriteString(i.gVsetvli(c.Vl, c.SEW, c.LMUL))
-		builder.WriteString(fmt.Sprintf("%s v%d, (a0)%s\n", i.Name, vd, v0t(c.Mask)))
-		builder.WriteString("# -------------- TEST END   --------------\n")
-
-		builder.WriteString(i.gResultDataAddr())
-		for nf := 0; nf < nfields; nf++ {
-			builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd+(nf*int(c.LMUL1)), c.LMUL1, c.SEW))
-			builder.WriteString(i.gMagicInsn(vd+(nf*int(c.LMUL1)), c.LMUL1))
+		var sew SEW = 8 // sew is data width, c.SEW is offset width
+		for ; sew <= SEW(i.Option.XLEN); sew <<= 1 {
+			if int(sew) > int(float64(i.Option.XLEN)*float64(c.LMUL)) {
+				continue
+			}
+			emul := (float64(c.SEW) / float64(sew)) * float64(c.LMUL) * float64(nfields)
+			if emul > 8 || emul < 1./8 {
+				continue
+			}
+			emul = math.Max(emul, 1) // offset lmul
+			builder.WriteString(c.initialize())
+
+			builder.WriteString(i.gWriteRandomData(LMUL(1)))
+			builder.WriteString(i.gLoadDataIntoRegisterGroup(0, LMUL(1), SEW(32)))
+
+			lmul1 := LMUL(math.Max((float64(c.SEW)/float64(sew))*float64(c.LMUL), 1))
+			vd := int(lmul1)
+			
+			builder.WriteString(i.gWriteIntegerTestData(lmul1*LMUL(nfields), sew, 0))			
+			for nf := 0; nf < nfields; nf++ {
+				builder.WriteString(i.gLoadDataIntoRegisterGroup(vd+(nf*int(lmul1)), lmul1, sew))
+				builder.WriteString(fmt.Sprintf("li a5, %d\n", i.vlenb()*int(lmul1)))
+				builder.WriteString("add a0, a0, a5\n")
+			}
+
+			builder.WriteString("# -------------- TEST BEGIN --------------\n")
+			builder.WriteString(i.gVsetvli(c.Vl, sew, c.LMUL))
+			builder.WriteString(fmt.Sprintf("%s v%d, (a0)%s\n", i.Name, vd, v0t(c.Mask)))
+			builder.WriteString("# -------------- TEST END   --------------\n")
+
+			builder.WriteString(i.gResultDataAddr())
+			for nf := 0; nf < nfields; nf++ {
+				builder.WriteString(i.gStoreRegisterGroupIntoResultData(vd+(nf*int(lmul1)), lmul1, sew))
+				builder.WriteString(i.gMagicInsn(vd+(nf*int(lmul1)), lmul1))
+			}
 		}
 
 		res = append(res, builder.String())