diff --git a/common.mk b/common.mk
index 9f00b39..6d8e069 100644
--- a/common.mk
+++ b/common.mk
@@ -10,6 +10,8 @@ SIM=VERILATOR
 
 NUMACTL=#numactl -m 0 -C 0,1 --
 
+VERSION="v0.2.0-dev"
+COMMIT=$(shell git log --pretty=format:'%H' -1 |cat)
 
 ifeq "${QUIET}" "1"
        QUIET_AS		= @echo   '  AS        '$@;
@@ -49,29 +51,29 @@ endif
 ifeq "${SIM}" "ICARUS"
 %.fst %.memdump: %.txt ${SYSTEM_VVP} ${MICROCODE}
 	${QUIET_VVP}
-	${Q}vvp "${SYSTEM_VVP}" -fst +BOOT_CODE="$<" +WAVEFORM="$(subst .txt,.fst,$<)" +MEMDUMP="$(subst .txt,.memdumptxt,$<)" +MICROCODE="${MICROCODE}"
+	${Q}vvp "${SYSTEM_VVP}" -fst +VERSION=${VERSION} +COMMIT=${COMMIT} +BOOT_CODE="$<" +WAVEFORM="$(subst .txt,.fst,$<)" +MEMDUMP="$(subst .txt,.memdumptxt,$<)" +MICROCODE="${MICROCODE}"
 	${Q}grep -v '^//' "$(subst .txt,.memdumptxt,$<)" | xxd -ps -c 2 -r > "$(subst .txt,.memdump,$<)"
 	${Q}rm "$(subst .txt,.memdumptxt,$<)"
 
 %.run: %.txt ${SYSTEM_VVP} ${MICROCODE}
 	${QUIET_VVP}
-	${Q}vvp -i "${SYSTEM_VVP}" +BOOT_CODE="$<" +MICROCODE="${MICROCODE}"
+	${Q}vvp -i "${SYSTEM_VVP}" +VERSION=${VERSION} +COMMIT=${COMMIT} +BOOT_CODE="$<" +MICROCODE="${MICROCODE}"
 %.json: %.txt ${SYSTEM_VVP} ${MICROCODE}
 	${QUIET_VVP}
-	${Q}vvp -i "${SYSTEM_VVP}" +STATS="$@" +BOOT_CODE="$<" +MICROCODE="${MICROCODE}"
+	${Q}vvp -i "${SYSTEM_VVP}" +VERSION=${VERSION} +COMMIT=${COMMIT} +STATS="$@" +BOOT_CODE="$<" +MICROCODE="${MICROCODE}"
 else ifeq "${SIM}" "VERILATOR"
 %.fst %.memdump: %.txt ${VERILATOR_BIN} ${MICROCODE}
 	$(call QUIET_VERILATOR_RUN,$(word 2,$^),$<)
-	${Q}"${VERILATOR_BIN}" +BOOT_CODE="$<" +WAVEFORM="$(subst .txt,.fst,$<)" +MEMDUMP="$(subst .txt,.memdumptxt,$<)" +MICROCODE="${MICROCODE}"
+	${Q}"${VERILATOR_BIN}" +VERSION=${VERSION} +COMMIT=${COMMIT} +BOOT_CODE="$<" +WAVEFORM="$(subst .txt,.fst,$<)" +MEMDUMP="$(subst .txt,.memdumptxt,$<)" +MICROCODE="${MICROCODE}"
 	${Q}grep -v '^//' "$(subst .txt,.memdumptxt,$<)" | xxd -ps -c 2 -r > "$(subst .txt,.memdump,$<)"
 	${Q}rm "$(subst .txt,.memdumptxt,$<)"
 
 %.json: %.txt ${VERILATOR_BIN} ${MICROCODE}
 	$(call QUIET_VERILATOR_RUN,$(word 2,$^),$<)
-	${Q} ${NUMACTL} "${VERILATOR_BIN}" +STATS=$@ +BOOT_CODE="$<" +MICROCODE="${MICROCODE}"
+	${Q} ${NUMACTL} "${VERILATOR_BIN}" +VERSION=${VERSION} +COMMIT=${COMMIT} +STATS=$@ +BOOT_CODE="$<" +MICROCODE="${MICROCODE}"
 %.run: %.txt ${VERILATOR_BIN} ${MICROCODE}
 	$(call QUIET_VERILATOR_RUN,$(word 2,$^),$<)
-	${Q} ${NUMACTL} "${VERILATOR_BIN}" +BOOT_CODE="$<" +MICROCODE="${MICROCODE}"
+	${Q} ${NUMACTL} "${VERILATOR_BIN}" +VERSION=${VERSION} +COMMIT=${COMMIT} +BOOT_CODE="$<" +MICROCODE="${MICROCODE}"
 endif
 
 %.disas: %.bin
diff --git a/system/system.v b/system/system.v
index 94f04d7..b132e19 100644
--- a/system/system.v
+++ b/system/system.v
@@ -47,7 +47,7 @@ processor p(
 doublemem sysmem(address_bus,data_bus,rd,wr,BHE,IOMEM);
 
 `ifdef OTUPUT_JSON_STATISTICS
-string stats_name;
+string stats_name,version,commit;
 integer json_file_descriptor;
 `endif
 string waveform_name;
@@ -57,9 +57,11 @@ initial begin
 		$dumpvars(0,p,cycles);
 	end
 	`ifdef OTUPUT_JSON_STATISTICS
+	if(!$value$plusargs("VERSION=%s",version)) version="unkown";
+	if(!$value$plusargs("COMMIT=%s",commit)) commit="unkown";
 	if($value$plusargs("STATS=%s",stats_name))begin
 		json_file_descriptor=$fopen(stats_name,"w");
-		$fdisplay(json_file_descriptor,"{\n\"L1_size\":%0d,\n\"Cycles\":[",$rtoi($pow(2,`L1_CACHE_SIZE)));
+		$fdisplay(json_file_descriptor,"{\n\"L1_size\":%0d,\n\"9086 verison\":\"%s\",\n\"latest commit\":\"%s\",\n\"Cycles\":[",$rtoi($pow(2,`L1_CACHE_SIZE)),version,commit);
 		first_json_cycle = 1;
 	end else
 		json_file_descriptor=0;