The Amber processor core is an ARM-compatible 32-bit RISC processor. The Amber core is fully compatible with the ARM® v2a instruction set architecture (ISA) and is therefore supported by the GNU toolset.
I would like to try run on my Mac Mini, so, I install Armber, tools and do some modification…
1. Download the Amber project from the Opencores Subversion server
$ mkdir ~/AmberInstallPath $ cd ~/AmberInstallPath $ svn --username YOUR_NAME -password PASSWORD co http://opencores.org/ocsvn/amber/amber/trunk
2. Install the GNU cross compiler
$ sudo port install arm-none-linux-gnueabi-gcc $ sudo port install gawk $ cd /opt/local/bin $ sudo ln -s gawk awk $ sudo ln -s arm-none-linux-gnueabi-gcc-2005q3 arm-none-linux-gnueabi-gcc
3. Install Icarus Verilog Simulator
$ sudo port install iverilog
4. Edit ~/.profile and add the following
$ export AMBER_BASE=~/AmberInstallPath/trunk $ export AMBER_CROSSTOOL=arm-none-linux-gnueabi
5. Make scripts executable and create a run link
$ cd $AMBER_BASE $ chmod +x hw/tools/*.sh sw/tools/*.sh $ ln -s ../tools/run.sh hw/sim/run
6. Create $AMBER_BASE/hw/tools/runIV.patch by following
--- run.sh 2011-04-29 08:47:23.000000000 +0800
+++ runIV.sh 2011-04-29 09:14:21.000000000 +0800
@@ -46,12 +46,9 @@
AMBER_LOAD_MAIN_MEM=" "
AMBER_TIMEOUT=0
AMBER_LOG_FILE="tests.log"
-SET_G=0
SET_M=0
SET_D=0
SET_T=0
-SET_S=0
-SET_V=0
SET_A=0
SET_5=0
@@ -59,14 +56,11 @@ SET_5=0
# show program usage
show_usage() {
echo "Usage:"
- echo "run [-a] [-g] [-d] [-t] [-s] [-v]"
+ echo "run [-a] [-d] [-t]"
echo " -h : Help"
echo " -a : Run hardware tests (all tests in $AMBER_BASE/hw/tests)"
- echo " -g : Use Modelsim GUI"
echo " -d : Create vcd file"
echo " -t : Create vcd file and terminate"
- echo " -s : Use Xilinx Spatran6 Libraries (slower sim)"
- echo " -v : Use Xilinx Virtex6 Libraries (slower sim)"
echo " -5 : Use Amber25 core instead of Amber23 core"
echo ""
exit
@@ -103,14 +97,8 @@ do
case $1 in
-a) SET_A=1 # all tests
shift ;;
- -s) SET_S=1 # Xilinx libs
- shift ;;
- -v) SET_V=1 # Xilinx libs
- shift ;;
-5) SET_5=1 # Xilinx libs
shift ;;
- -g) SET_G=1 # Bring up GUI
- shift ;;
-d) SET_D=1
DUMP_START=$2
shift 2;;
@@ -135,24 +123,7 @@ done
# Set comfiguration based on command-line options
#--------------------------------------------------------
-if [ $SET_G == 1 ]; then
- RUN_OPTIONS="-do cmd.do"
-else
- RUN_OPTIONS="${RUN_OPTIONS} -c -do run.do"
-fi
-
-if [ $SET_S == 1 ]; then
- FPGA="+define+XILINX_SPARTAN6_FPGA +define+XILINX_FPGA"
- RUN_OPTIONS="${RUN_OPTIONS} -t ps +notimingchecks -L unisims_ver -L secureip"
-else
- if [ $SET_V == 1 ]; then
- FPGA="+define+XILINX_VIRTEX6_FPGA +define+XILINX_FPGA"
- RUN_OPTIONS="${RUN_OPTIONS} -t ps +notimingchecks"
- else
- FPGA=" "
- fi
-fi
-
+RUN_OPTIONS="-f iverilog.f"
if [ $SET_D == 1 ]; then
AMBER_DUMP_VCD="+define+AMBER_DUMP_VCD +define+AMBER_DUMP_START=$DUMP_START"
@@ -173,13 +144,8 @@ else
fi
if [ $SET_A == 1 ]; then
- if [ $SET_S == 1 ]; then
- TECH="-s"
- elif [ $SET_V == 1 ]; then
- TECH="-v"
- else
- TECH=" "
- fi
+
+ TECH=" "
if [ $SET_5 == 1 ]; then
CORE="-5"
@@ -273,54 +239,42 @@ fi
#--------------------------------------------------------
-# Modelsim
+# iVerilog
#--------------------------------------------------------
-if [ $MAKE_STATUS == 0 ]; then
- if [ ! -d work ]; then
- vlib work
- fi
-
- if [ $? == 0 ]; then
- vlog +libext+.v
- +incdir+../vlog/amber23+../vlog/amber25+../vlog/system+../vlog/tb+../vlog/ethmac
- +incdir+../vlog/lib+../vlog/xs6_ddr3+../vlog/xv6_ddr3
- -y ../vlog/amber23 -y ../vlog/amber25 -y ../vlog/system -y ../vlog/tb -y ../vlog/ethmac
- -y ../vlog/lib -y ../vlog/xs6_ddr3 -y ../vlog/xv6_ddr3
- -y $XILINX/verilog/src/unisims
- -y $XILINX/verilog/src
- ../vlog/tb/tb.v
- $XILINX/verilog/src/glbl.v
- +define+BOOT_MEM_FILE="$BOOT_MEM_FILE"
- +define+BOOT_MEM_PARAMS_FILE="$BOOT_MEM_PARAMS_FILE"
- +define+MAIN_MEM_FILE="$MAIN_MEM_FILE"
- +define+AMBER_LOG_FILE="$AMBER_LOG_FILE"
- +define+AMBER_TEST_NAME="$AMBER_TEST_NAME"
- +define+AMBER_SIM_CTRL=$TEST_TYPE
- +define+AMBER_TIMEOUT=$AMBER_TIMEOUT
- ${FPGA}
- $AMBER_CORE
- $AMBER_DUMP_VCD
- $AMBER_TERMINATE
- $AMBER_LOAD_MAIN_MEM
-
- if [ $? == 0 ]; then
- vsim -voptargs="+acc=rnpc" tb ${RUN_OPTIONS}
-
- # Set a timeout value for the test if it passed
- if [ $TEST_TYPE == 1 ]; then
- tail -1 /dev/null
- if [ $? == 0 ]; then
- TICKS=`tail -1 > $AMBER_LOG_FILE
-fi
+ echo "+libext+.v" > iverilog.f
+ echo "+incdir+../vlog/amber23" >> iverilog.f
+ echo "+incdir+../vlog/amber25" >> iverilog.f
+ echo "+incdir+../vlog/system" >> iverilog.f
+ echo "+incdir+../vlog/tb" >> iverilog.f
+ echo "+incdir+../vlog/ethmac" >> iverilog.f
+ echo "+incdir+../vlog/lib" >> iverilog.f
+ echo "+incdir+../vlog/xs6_ddr3" >> iverilog.f
+ echo "+incdir+../vlog/xv6_ddr3" >> iverilog.f
+ echo "-y../vlog/amber23" >> iverilog.f
+ echo "-y../vlog/amber25" >> iverilog.f
+ echo "-y../vlog/system" >> iverilog.f
+ echo "-y../vlog/tb" >> iverilog.f
+ echo "-y../vlog/ethmac" >> iverilog.f
+ echo "-y../vlog/lib" >> iverilog.f
+ echo "-y../vlog/xs6_ddr3" >> iverilog.f
+ echo "-y../vlog/xv6_ddr" >> iverilog.f
+ echo "+define+BOOT_MEM_FILE="$BOOT_MEM_FILE"" >> iverilog.f
+ echo "+define+BOOT_MEM_PARAMS_FILE="$BOOT_MEM_PARAMS_FILE"" >> iverilog.f
+ echo "+define+MAIN_MEM_FILE="$MAIN_MEM_FILE"" >> iverilog.f
+ echo "+define+AMBER_LOG_FILE="$AMBER_LOG_FILE"" >> iverilog.f
+ echo "+define+AMBER_TEST_NAME="$AMBER_TEST_NAME"" >> iverilog.f
+ echo "+define+AMBER_SIM_CTRL=$TEST_TYPE" >> iverilog.f
+ echo "+define+AMBER_TIMEOUT=$AMBER_TIMEOUT" >> iverilog.f
+ echo "$AMBER_CORE" >> iverilog.f
+ echo "$AMBER_DUMP_VCD" >> iverilog.f
+ echo "$AMBER_TERMINATE" >> iverilog.f
+ echo "$AMBER_LOAD_MAIN_MEM" >> iverilog.f
+ echo "../vlog/tb/tb.v" >> iverilog.f
+
+ rm -rf ./armber
+ iverilog -f iverilog.f -o armber
+ ./armber
7. Create runIV script for iverilog simulator
$ cd $AMBER_BASE/hw/tools $ patch -o runIV.sh -i runIV.patch $ chmod +x runIV.sh $ cd $AMBER_BASE/hw/sim $ ln -s ../tools/runIV.sh runIV
8. If you see the iverilog compile error message for log2 function in next step, you could replace log2 by $clog2 to solve the problem.
9. Run a Hello-World Test with Amber 25
$ cd $AMBER_BASE/hw/sim $ runIV -5 hello-world
10. Hello-World simulation Result
Amber Boot Loader v20110202130047
Hello, World!
----------------------------------------------------------------------------
Amber Core
> User FIRQ IRQ SVC
r0 0x00000010
r1 0x16000000
r2 0x00000000
r3 0x00000000
r4 0x0c80e403
r5 0x00000000
r6 0x00000000
r7 0x00000000
r8 0xdeadbeef 0xdeadbeef
r9 0xdeadbeef 0xdeadbeef
r10 0x00000011 0xdeadbeef
r11 0xf0000000 0xdeadbeef
r12 0x00000000 0xdeadbeef
r13 0x08000000 0xdeadbeef 0xdeadbeef 0x01ffffb8
r14 (lr) 0x0080e420 0xdeadbeef 0xdeadbeef 0x20000787
r15 (pc) 0x0080e960
Status Bits: N=0, Z=1, C=1, V=0, IRQ Mask 0, FIRQ Mask 0, Mode = User
----------------------------------------------------------------------------
++++++++++++++++++++
Passed hello-world 29320 ticks
++++++++++++++++++++
Thank you for this patch 🙂