diff --git a/dvf2svd.py b/dvf2svd.py
new file mode 100755
index 0000000..2e48412
--- /dev/null
+++ b/dvf2svd.py
@@ -0,0 +1,103 @@
+#!/usr/bin/env python3
+
+import argparse, sys, os
+
+sys.path.append(os.path.dirname(os.path.abspath(__file__))+"/svd")
+from dvf import dvfparse
+#from svd import svd, svdparse, svdgen
+import svd, svdparse, svdgen
+from typing import *
+
+WIDTHS = {
+    dvfparse.Dvf.MCU_78K0: 16,
+    dvfparse.Dvf.MCU_78K0R: 20,
+    dvfparse.Dvf.MCU_RL78x1y: 20,
+    dvfparse.Dvf.MCU_RL78x2y: 20,
+}
+SERIES = {
+    # TODO: better categorization in subtypes and stuff
+    dvfparse.Dvf.MCU_78K0: "78K0(S)",
+    dvfparse.Dvf.MCU_78K0R: "78K0R",
+    dvfparse.Dvf.MCU_RL78x1y: "RL78/x1y",
+    dvfparse.Dvf.MCU_RL78x2y: "RL78/x2y",
+}
+CPUS = {
+    # TODO: better categorization in subtypes and stuff
+    dvfparse.Dvf.MCU_78K0: "78K0(S)",
+    dvfparse.Dvf.MCU_78K0R: "78K0R",
+    dvfparse.Dvf.MCU_RL78x1y: "RL78/S[13]",
+    dvfparse.Dvf.MCU_RL78x2y: "RL78/S3",
+}
+
+def conv_per(dvf: dvfparse.Dvf) -> List[svd.SvdPeripheral]:
+    r=[]
+    base = 0xFFF00 & ((1<<WIDTHS[dvf.mcutype])-1)
+    r.append(svd.SvdPeripheral(
+        name="SFR",
+        description="Special Function Register space",
+        baseAddress=base,
+        registers=[
+            # fields, properties, widths, etc etc etc are still to be reversed...
+            svd.SvdRegister(
+                name=r.name,
+                addressOffset=(r.address|base)-base
+            ) for r in dvf.sections[dvfparse.DvfSect.SN]
+        ]
+    ))
+    if dvfparse.DvfSect.ES in dvf.sections: # 78K0 has none
+        base = 0xF0000
+        r.append(svd.SvdPeripheral(
+            name="SFR2",
+            description="Extended Special Function Register space",
+            baseAddress=base,
+            registers=[
+                svd.SvdRegister(
+                    name=r.name,
+                    addressOffset=(r.address|base)-base
+                ) for r in dvf.sections[dvfparse.DvfSect.ES]
+            ]
+        ))
+    return r
+
+def conv(dvf: dvfparse.Dvf) -> svd.SvdDevice:
+    md = dvf.sections[dvfparse.DvfSect.MD][0]
+    return svd.SvdDevice(
+        vendor="Renesas",
+        vendorID="Renesas",
+        name=dvf.chipname_disp,
+        series=SERIES[dvf.mcutype],
+        description=md.version + " " + md.timestamp,
+        licenseText=dvf.copyright_notice,
+        addressUnitBits=8,
+        width=16,#WIDTHS[dvf.mcutype],
+        cpu=svd.SvdCpu(
+            name=CPUS[dvf.mcutype],
+            endian='little',
+            deviceNumInterrupts=len(dvf.sections[dvfparse.DvfSect.VN]),
+        ),
+        peripherals=conv_per(dvf),
+        # TODO: MI to memory map somehow?
+    )
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(prog="dvf2h",
+                                     description="Convert NEC/Renesas Device "+\
+                                     "Files to CMSIS-SVD files")
+
+    parser.add_argument('input', type=argparse.FileType('rb'))
+    #parser.add_argument('output', type=argparse.FileType('w'))
+    parser.add_argument('output', type=str, default=None)
+
+
+    args = parser.parse_args()
+    output = sys.stdout if args.output is None else open(args.output, 'w')
+
+    try:
+        dvffile = dvfparse.Dvf.parse(args.input.read())
+        svdc = conv(dvffile)
+        svdgen.generate(output, svdc)
+    finally:
+        if args.output is not None:
+            output.close()
+