Initial import of microwatt

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>

scripts/dependencies.py

@@ -0,0 +1,25 @@
+#!/usr/bin/python3
+
+# Create makefile dependencies for VHDL files, looking for "use work" and
+# "entity work" declarations
+
+import sys
+import re
+
+work = re.compile('use work\.([^.]+)\.')
+entity = re.compile('entity work\.(.*)')
+
+for filename in sys.argv[1:]:
+    with open(filename, 'r') as f:
+        (basename, suffix) = filename.split('.')
+        print('%s.o:' % basename, end='')
+
+        for line in f:
+            m = work.search(line)
+            if m:
+                print(' %s.o' % m.group(1), end='')
+
+            m = entity.search(line)
+            if m:
+                print(' %s.o' % m.group(1), end='')
+    print()

scripts/hash.py

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+#!/usr/bin/python3
+
+import re
+import fileinput
+
+r = re.compile("REG ([0-9A-F]+)");
+
+regs = list()
+
+for line in fileinput.input():
+    m = r.search(line)
+    if m:
+        regs.append(int(m.group(1), 16))
+        #print("%016X"% int(m.group(1), 16))
+
+print("%x" % hash(tuple(regs)))

scripts/run_test.sh

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+#!/bin/bash
+
+if [ $# -ne 1 ]; then
+	echo "Usage: run_test.sh <test>"
+	exit 1
+fi
+
+TEST=$1
+
+TMPDIR=$(mktemp -d)
+
+function finish {
+	rm -rf "$TMPDIR"
+}
+
+trap finish EXIT
+
+MICROWATT_DIR=$PWD
+
+Y=$(${MICROWATT_DIR}/scripts/hash.py tests/${TEST}.out)
+
+cd $TMPDIR
+
+cp ${MICROWATT_DIR}/tests/${TEST}.bin simple_ram_behavioural.bin
+
+X=$( ${MICROWATT_DIR}/core_tb | ${MICROWATT_DIR}/scripts/hash.py )
+
+if [ $X == $Y ]; then
+	echo "$TEST PASS"
+else
+	echo "$TEST FAIL ********"
+	exit 1
+fi

scripts/test_micropython.py

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+#!/usr/bin/python3
+
+import tempfile
+import os
+from shutil import copyfile
+import subprocess
+from pexpect import fdpexpect
+import sys
+import signal
+
+tempdir = tempfile.TemporaryDirectory()
+cwd = os.getcwd()
+os.chdir(tempdir.name)
+
+copyfile(os.path.join(cwd, 'tests/micropython.bin'),
+        os.path.join(tempdir.name, 'simple_ram_behavioural.bin'))
+
+cmd = [ os.path.join(cwd, './core_tb') ]
+
+devNull = open(os.devnull, 'w')
+p = subprocess.Popen(cmd, stdout=devNull,
+        stdin=subprocess.PIPE, stderr=subprocess.PIPE)
+
+exp = fdpexpect.fdspawn(p.stderr)
+exp.logfile = sys.stdout.buffer
+
+exp.expect('Type "help\(\)" for more information.')
+exp.expect('>>>')
+
+p.stdin.write(b'print("foo")\r\n')
+p.stdin.flush()
+
+# Catch the command echoed back to the console
+exp.expect('foo', timeout=600)
+
+# Now catch the output
+exp.expect('foo', timeout=600)
+exp.expect('>>>')
+
+os.kill(p.pid, signal.SIGKILL)

scripts/test_micropython_long.py

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+#!/usr/bin/python3
+
+import tempfile
+import os
+from shutil import copyfile
+import subprocess
+from pexpect import fdpexpect
+import sys
+import signal
+
+tempdir = tempfile.TemporaryDirectory()
+cwd = os.getcwd()
+os.chdir(tempdir.name)
+
+copyfile(os.path.join(cwd, 'tests/micropython.bin'),
+        os.path.join(tempdir.name, 'simple_ram_behavioural.bin'))
+
+cmd = [ os.path.join(cwd, './core_tb') ]
+
+devNull = open(os.devnull, 'w')
+p = subprocess.Popen(cmd, stdout=devNull,
+        stdin=subprocess.PIPE, stderr=subprocess.PIPE)
+
+exp = fdpexpect.fdspawn(p.stderr)
+exp.logfile = sys.stdout.buffer
+
+exp.expect('Type "help\(\)" for more information.')
+exp.expect('>>>')
+
+p.stdin.write(b'n2=0\r\n')
+p.stdin.write(b'n1=1\r\n')
+p.stdin.write(b'for i in range(5):\r\n')
+p.stdin.write(b'    n0 = n1 + n2\r\n')
+p.stdin.write(b'    print(n0)\r\n')
+p.stdin.write(b'    n2 = n1\r\n')
+p.stdin.write(b'    n1 = n0\r\n')
+p.stdin.write(b'\r\n')
+p.stdin.flush()
+
+exp.expect('n1 = n0', timeout=600)
+exp.expect('1', timeout=600)
+exp.expect('2', timeout=600)
+exp.expect('3', timeout=600)
+exp.expect('5', timeout=600)
+exp.expect('8', timeout=600)
+exp.expect('>>>', timeout=600)
+
+os.kill(p.pid, signal.SIGKILL)