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olivier.gi |
/*===========================================================================*/
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/* Copyright (C) 2001 Authors */
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/* */
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/* This source file may be used and distributed without restriction provided */
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/* that this copyright statement is not removed from the file and that any */
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/* derivative work contains the original copyright notice and the associated */
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/* disclaimer. */
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/* */
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/* This source file is free software; you can redistribute it and/or modify */
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/* it under the terms of the GNU Lesser General Public License as published */
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/* by the Free Software Foundation; either version 2.1 of the License, or */
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/* (at your option) any later version. */
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/* */
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/* This source is distributed in the hope that it will be useful, but WITHOUT*/
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/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
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/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
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/* License for more details. */
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/* */
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/* You should have received a copy of the GNU Lesser General Public License */
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/* along with this source; if not, write to the Free Software Foundation, */
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/* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
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/* */
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/*===========================================================================*/
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/* TWO-OPERAND ARITHMETIC: BIS[.B] INSTRUCTION */
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/*---------------------------------------------------------------------------*/
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/* Test the BIS[.B] instruction. */
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olivier.gi |
/* */
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/* Author(s): */
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/* - Olivier Girard, olgirard@gmail.com */
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/* */
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/*---------------------------------------------------------------------------*/
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olivier.gi |
/* $Rev: 19 $ */
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/* $LastChangedBy: olivier.girard $ */
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/* $LastChangedDate: 2009-08-04 23:47:15 +0200 (Tue, 04 Aug 2009) $ */
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olivier.gi |
/*===========================================================================*/
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.global main
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main:
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/* -------------- TEST INSTRUCTION IN WORD MODE ------------------- */
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mov #0x0000, r2
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mov #0xaaaa, r4
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mov #0x3333, r5
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bis r4, r5 ;# Set bits r4 | r5 (0xaaaa | 0x3333=0xbbbb)
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mov #0x0001, r2
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mov #0x5555, r4
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mov #0xcccc, r6
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bis r4, r6 ;# Set bits r4 | r6 (0x5555 | 0xcccc=0xdddd)
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mov #0x1000, r15
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/* -------------- TEST INSTRUCTION IN BYTE MODE ------------------- */
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mov #0x0000, r2
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mov #0x4444, r4
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mov #0x1111, r5
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bis.b r4, r5 ;# Set bits r4 | r5 (0x4444 | 0x1111=0x0055)
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mov #0x0001, r2
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mov #0x8888, r4
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mov #0x2222, r6
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bis.b r4, r6 ;# Set bits r4 | r6 (0x8888 | 0x2222=0x00aa)
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mov #0x2000, r15
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/* ------------------ TEST FLAGS IN WORD MODE ---------------------- */
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#
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# Make sure Flags are unaffected by instruction
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#
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mov #0x0005, r2 ;# V=0, N=1, Z=0, C=1
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mov #0x0aaa, r4 ;#
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mov #0x0666, r5 ;#
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bis r4, r5 ;# Set bits r4 | r5 (0x0aaa | 0x0666=0x0eee)
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mov #0x3000, r15
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mov #0x0102, r2 ;# V=1, N=0, Z=1, C=0
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mov #0x0aaa, r4 ;#
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mov #0x0666, r5 ;#
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bis r4, r5 ;# Set bits r4 | r5 (0x0aaa | 0x0666=0x0eee)
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mov #0x3001, r15
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/* ------------------ TEST FLAGS IN BYTE MODE --------------------- */
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#
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# Make sure Flags are unaffected by instruction
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#
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mov #0x0005, r2 ;# V=0, N=1, Z=0, C=1
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mov #0x550a, r4 ;#
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mov #0x6606, r5 ;#
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bis.b r4, r5 ;# Set bits r4 | r5 (0x000a | 0x0006=0x000e)
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mov #0x4000, r15
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mov #0x0102, r2 ;# V=1, N=0, Z=1, C=0
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mov #0x330a, r4 ;#
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mov #0x9906, r5 ;#
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bis.b r4, r5 ;# Set bits r4 | r5 (0x000a | 0x0006=0x000e)
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mov #0x4001, r15
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/* ---------------------- END OF TEST --------------- */
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mov #0x5000, r15
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end_of_test:
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nop
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br #0xffff
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/* ---------------------- INTERRUPT VECTORS --------------- */
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.section .vectors, "a"
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.word end_of_test ; Interrupt 0 (lowest priority)
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.word end_of_test ; Interrupt 1
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.word end_of_test ; Interrupt 2
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.word end_of_test ; Interrupt 3
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.word end_of_test ; Interrupt 4
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.word end_of_test ; Interrupt 5
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.word end_of_test ; Interrupt 6
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.word end_of_test ; Interrupt 7
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.word end_of_test ; Interrupt 8
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.word end_of_test ; Interrupt 9
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.word end_of_test ; Interrupt 10 Watchdog timer
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.word end_of_test ; Interrupt 11
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.word end_of_test ; Interrupt 12
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.word end_of_test ; Interrupt 13
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.word end_of_test ; Interrupt 14 NMI
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.word main ; Interrupt 15 (highest priority) RESET
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