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#! /usr/bin/env python
###############################################################################
#
# simulavr - A simulator for the Atmel AVR family of microcontrollers.
# Copyright (C) 2001, 2002 Theodore A. Roth
# Copyright (C) 2015 Christian Taedcke
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
###############################################################################
"""Test the EIJMP opcode.
"""
import base_test
from registers import Reg
class EIJMP_TestFail(base_test.TestFail): pass
class base_EIJMP(base_test.opcode_eind_test):
"""Generic test case for testing EIJMP opcode.
The derived class must provide the reg member and the fail method.
EIJMP - Relative Jump
PC(15:0) <- Z(15:0)
PC(21:16) <- EIND(7:0)
opcode is '1001 0100 0001 1001'
"""
def ensure_target_supports_opcode(self):
if (not self.target.has_eind):
self.opcode_not_supported()
def setup(self):
self.setup_regs[Reg.PC] = 0xff * 2
# Load the Z register (reg 31:30) with PC to jump to
self.setup_regs[Reg.R31] = (self.k >> 8) & 0xff
self.setup_regs[Reg.R30] = (self.k & 0xff)
#setup EIND register
self.write_register_eind(self.eind & 0xff)
return 0x9419
def analyze_results(self):
self.is_pc_checked = 1
expect = self.k + (self.eind << 16)
got = self.anal_regs[Reg.PC] / 2
if expect != got:
self.fail('EIJMP failed: expect=%x, got=%x' % (expect, got))
#
# Template code for test case.
# The fail method will raise a test specific exception.
#
template = """
class EIJMP_k%06x_ei%02x_TestFail(EIJMP_TestFail): pass
class test_EIJMP_k%06x_ei%02x(base_EIJMP):
k = 0x%x
eind = 0x%x
def fail(self,s):
raise EIJMP_k%06x_ei%02x_TestFail(s)
"""
#
# automagically generate the test_EIJMP_* class definitions
#
code = ''
for k in (0x36, 0x100, 0x3ff):
for eind in (0x00, 0x01):
args = (k, eind) * 4
code += template % args
exec(code)
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