#! /usr/bin/env python ############################################################################### # # simulavr - A simulator for the Atmel AVR family of microcontrollers. # Copyright (C) 2001, 2002 Theodore A. Roth # # 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # ############################################################################### # # $Id: test_CPSE.py,v 1.1 2002/04/05 01:05:48 troth Exp $ # """Test the CPSE opcode. """ import base_test from registers import Reg class CPSE_TestFail(base_test.TestFail): pass class base_CPSE(base_test.opcode_test): """Generic test case for testing CPSE opcode. The derived class must provide the reg member and the fail method. CPSE - Compare, Skip if Equal opcode is '0001 11rd dddd rrrr' """ def setup(self): self.setup_regs[self.Rd] = self.vd self.setup_regs[self.Rr] = self.vr self.setup_regs[Reg.PC] = 0xff * 2 # Need to make sure the PC+2 is a real insn if self.ni == 16: # just use a nop (0000 0000 0000 0000) next_op = 0x0000 else: # use high byte of LDS (1001 000d dddd 0000) (d=0) next_op = 0x9000 self.prog_word_write(self.setup_regs[Reg.PC]+2, next_op) return 0x1000 | (self.Rd << 4) | (self.Rr & 0xf) | ((self.Rr & 0x10) << 5) def analyze_results(self): self.is_pc_checked = 1 if self.vd == self.vr: if self.ni == 16: expect = self.setup_regs[Reg.PC]/2 + 2 else: expect = self.setup_regs[Reg.PC]/2 + 3 else: expect = self.setup_regs[Reg.PC]/2 + 1 got = self.anal_regs[Reg.PC] / 2 if expect != got: self.fail('CPSE failed: expect=%x, got=%x' % (expect, got)) # # Template code for test case. # The fail method will raise a test specific exception. # template = """ class CPSE_rd%02d_vd%02x_rr%02d_vr%02x_ni%d_TestFail(CPSE_TestFail): pass class test_CPSE_rd%02d_vd%02x_rr%02d_vr%02x_ni%d(base_CPSE): Rd = %d vd = 0x%x Rr = %d vr = 0x%x ni = %d def fail(self,s): raise CPSE_rd%02d_vd%02x_rr%02d_vr%02x_ni%d_TestFail, s """ vals = ( ( 0xaa, 0x55 ), ( 0xa0, 0xa0 ), ) # # automagically generate the test_CPSE_* class definitions # code = '' step = 4 for d in range(0,32,step): for r in range(1,32,step): for vr,vd in vals: for ni in (16,32): # is next insn 16 or 32 bits args = (d,vd,r,vr,ni)*4 code += template % args # Special case when Rd==Rr, set Vd==Vr for d in range(0,32,step): for vr,vd in vals: for ni in (16,32): # is next insn 16 or 32 bits args = (d,vd,d,vd,ni)*4 code += template % args exec code