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[/] [openrisc/] [tags/] [or1ksim/] [or1ksim-0.5.1rc1/] [testsuite/] [test-code-or1k/] [inst-set-test/] [is-mac-test.S] - Rev 858
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/* is-mac-test.S. l.mac, l.maci, l.macrc and l.msb instruction test of Or1ksim
*
* Copyright (C) 1999-2006 OpenCores
* Copyright (C) 2010 Embecosm Limited
*
* Contributors various OpenCores participants
* Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
*
* This file is part of OpenRISC 1000 Architectural Simulator.
*
* 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 3 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, see <http: www.gnu.org/licenses/>.
*/
/* ----------------------------------------------------------------------------
* Coding conventions are described in inst-set-test.S
* ------------------------------------------------------------------------- */
/* ----------------------------------------------------------------------------
* Test coverage
*
* The l.mac, l.maci, l.macrc and l.msb instructions perform operations related
* to combined signed multiply and addition/subtraction.
*
* The precise definition of these instructions is in flux. In addition there
* are known problems with the assembler/disassembler (will not correctly
* handle l.maci) and with the Verilog RTL implementation (not functional).
*
* Problems in this area were reported in Bugs 1773 and 1777. Having fixed the
* problem, this is (in good software engineering style), a regression test
* to go with the fix.
*
* This is not a comprehensive test of any instruction (yet).
*
* Of course what is really needed is a comprehensive instruction test...
* ------------------------------------------------------------------------- */
#include "inst-set-test.h"
/* ----------------------------------------------------------------------------
* A macro to carry out a test of multiply accumulate read and clear
*
* Arguments
* machi: Inital value of MACHI
* maclo: Inital value of MACLO
* op1: First operand value
* op2: Second operand value
* res: Expected result
* ------------------------------------------------------------------------- */
#define TEST_MACRC(machi, maclo, op1, op2, res) \
LOAD_CONST (r2,maclo) ;\
l.mtspr r0,r2,SPR_MACLO ;\
LOAD_CONST (r2,machi) ;\
l.mtspr r0,r2,SPR_MACHI ;\
;\
LOAD_CONST (r5,op1) /* Load numbers to add */ ;\
LOAD_CONST (r6,op2) ;\
l.mac r5,r6 ;\
l.macrc r4 ;\
PUSH (r4) /* Save for later */ ;\
PUTS (" 0x") ;\
PUTH (machi) ;\
PUTS (" ") ;\
PUTH (maclo) ;\
PUTS (" + 0x") ;\
PUTH (op1) ;\
PUTS (" * 0x") ;\
PUTH (op2) ;\
PUTS (" = 0x") ;\
PUTH (res) ;\
PUTS (": ") ;\
POP (r4) ;\
CHECK_RES ("", r4, res) ;\
;\
l.mfspr r5,r0,SPR_MACHI ;\
l.sfne r5,r0 ;\
l.bf 50f ;\
;\
PUTS (" - MACHI cleared\n") ;\
;\
50: l.mfspr r6,r0,SPR_MACLO ;\
l.sfne r6,r0 ;\
l.bf 51f ;\
;\
PUTS (" - MACLO cleared\n") ;\
51:
/* ----------------------------------------------------------------------------
* A macro to carry out a test of multiply accumulate in registers
*
* Arguments
* machi: Inital value of MACHI
* maclo: Inital value of MACLO
* op1: First operand value
* op2: Second operand value
* reshi: Expected result
* reslo: Expected result
* ------------------------------------------------------------------------- */
#define TEST_MAC(machi, maclo, op1, op2, reshi, reslo) \
LOAD_CONST (r2,maclo) ;\
l.mtspr r0,r2,SPR_MACLO ;\
LOAD_CONST (r2,machi) ;\
l.mtspr r0,r2,SPR_MACHI ;\
;\
LOAD_CONST (r5,op1) /* Load numbers to add */ ;\
LOAD_CONST (r6,op2) ;\
l.mac r5,r6 ;\
l.mfspr r5,r0,SPR_MACHI ;\
l.mfspr r6,r0,SPR_MACLO ;\
PUSH (r5) /* Save for later */ ;\
PUSH (r6) ;\
PUTS (" 0x") ;\
PUTH (machi) ;\
PUTS (" ") ;\
PUTH (maclo) ;\
PUTS (" + 0x") ;\
PUTH (op1) ;\
PUTS (" * 0x") ;\
PUTH (op2) ;\
PUTS (" = 0x") ;\
PUTH (reshi) ;\
PUTS (" ") ;\
PUTH (reslo) ;\
PUTS (": ") ;\
POP (r6) ;\
POP (r5) ;\
CHECK_RES2 (r5, r6, reshi, reslo)
/* ----------------------------------------------------------------------------
* A macro to carry out a test of multiply accumulate with immediate arg
*
* There is currently a bug in the assembler, so we must hand construct
* l.maci r5,op1.
*
* Arguments
* machi: Inital value of MACHI
* maclo: Inital value of MACLO
* op1: First operand value
* op2: Second operand value
* reshi: Expected result
* reslo: Expected result
* ------------------------------------------------------------------------- */
#define TEST_MACI(machi, maclo, op1, op2, reshi, reslo) \
LOAD_CONST (r2,maclo) ;\
l.mtspr r0,r2,SPR_MACLO ;\
LOAD_CONST (r2,machi) ;\
l.mtspr r0,r2,SPR_MACHI ;\
;\
LOAD_CONST (r5,op1) /* Load number to add */ ;\
.word (0x4c050000|op2) /* l.maci r5,op2 */ ;\
/* l.maci r5,op2 */ ;\
l.mfspr r5,r0,SPR_MACHI ;\
l.mfspr r6,r0,SPR_MACLO ;\
PUSH (r5) /* Save for later */ ;\
PUSH (r6) ;\
PUTS (" 0x") ;\
PUTH (machi) ;\
PUTS (" ") ;\
PUTH (maclo) ;\
PUTS (" + 0x") ;\
PUTH (op1) ;\
PUTS (" * 0x") ;\
PUTH (op2) ;\
PUTS (" = 0x") ;\
PUTH (reshi) ;\
PUTS (" ") ;\
PUTH (reslo) ;\
PUTS (": ") ;\
POP (r6) ;\
POP (r5) ;\
CHECK_RES2 (r5, r6, reshi, reslo)
/* ----------------------------------------------------------------------------
* A macro to carry out a test of multiply and subract
*
* Arguments
* machi: Inital value of MACHI
* maclo: Inital value of MACLO
* op1: First operand value
* op2: Second operand value
* reshi: Expected result
* reslo: Expected result
* ------------------------------------------------------------------------- */
#define TEST_MSB(machi, maclo, op1, op2, reshi, reslo) \
LOAD_CONST (r2,maclo) ;\
l.mtspr r0,r2,SPR_MACLO ;\
LOAD_CONST (r2,machi) ;\
l.mtspr r0,r2,SPR_MACHI ;\
;\
LOAD_CONST (r5,op1) /* Load numbers to add */ ;\
LOAD_CONST (r6,op2) ;\
l.msb r5,r6 ;\
l.mfspr r5,r0,SPR_MACHI ;\
l.mfspr r6,r0,SPR_MACLO ;\
PUSH (r5) /* Save for later */ ;\
PUSH (r6) ;\
PUTS (" 0x") ;\
PUTH (machi) ;\
PUTS (" ") ;\
PUTH (maclo) ;\
PUTS (" - 0x") ;\
PUTH (op1) ;\
PUTS (" * 0x") ;\
PUTH (op2) ;\
PUTS (" = 0x") ;\
PUTH (reshi) ;\
PUTS (" ") ;\
PUTH (reslo) ;\
PUTS (": ") ;\
POP (r6) ;\
POP (r5) ;\
CHECK_RES2 (r5, r6, reshi, reslo)
/* ----------------------------------------------------------------------------
* Start of code
* ------------------------------------------------------------------------- */
.section .text
.global _start
_start:
/* ----------------------------------------------------------------------------
* Test of multiply signed and accumulate, l.mac
* ------------------------------------------------------------------------- */
_mac:
LOAD_STR (r3, "l.mac\n")
l.jal _puts
l.nop
/* MAC two small positive numbers on a zero total */
TEST_MAC (0x00000000, 0x00000000,
0x00000002, 0x00000003,
0x00000000, 0x00000006)
/* MAC two small positive numbers on a small positive total */
TEST_MAC (0x00000000, 0x00000006,
0x00000002, 0x00000003,
0x00000000, 0x0000000c)
/* MAC two small positive numbers on a moderate positive total */
TEST_MAC (0x00000000, 0xfffffffa,
0x00000002, 0x00000003,
0x00000001, 0x00000000)
/* MAC two small positive numbers on a large positive total */
TEST_MAC (0x3fffffff, 0xfffffffa,
0x00000002, 0x00000003,
0x40000000, 0x00000000)
/* MAC two small positive numbers on a small negative total */
TEST_MAC (0xffffffff, 0xfffffffa,
0x00000002, 0x00000003,
0x00000000, 0x00000000)
/* MAC two small positive numbers on a moderate negative total */
TEST_MAC (0xffffffff, 0x00000000,
0x00000002, 0x00000003,
0xffffffff, 0x00000006)
/* MAC two small positive numbers on a large negative total */
TEST_MAC (0x80000000, 0x00000000,
0x00000002, 0x00000003,
0x80000000, 0x00000006)
PUTC ('\n')
/* MAC two moderate positive numbers on a zero total */
TEST_MAC (0x00000000, 0x00000000,
0x00008001, 0x0000fffe,
0x00000000, 0x7ffffffe)
/* MAC two moderate positive numbers on a small positive total */
TEST_MAC (0x00000000, 0x00000002,
0x00008001, 0x0000fffe,
0x00000000, 0x80000000)
/* MAC two moderate positive numbers on a moderate positive total */
TEST_MAC (0x00000000, 0x80000002,
0x00008001, 0x0000fffe,
0x00000001, 0x00000000)
/* MAC two moderate positive numbers on a large positive total */
TEST_MAC (0x7fffffff, 0x80000001,
0x00008001, 0x0000fffe,
0x7fffffff, 0xffffffff)
/* MAC two moderate positive numbers on a small negative total */
TEST_MAC (0xffffffff, 0xffffffff,
0x00008001, 0x0000fffe,
0x00000000, 0x7ffffffd)
/* MAC two moderate positive numbers on a moderate negative total */
TEST_MAC (0xffffffff, 0x80000002,
0x00008001, 0x0000fffe,
0x00000000, 0x00000000)
/* MAC two moderate positive numbers on a large negative total */
TEST_MAC (0xfffffffe, 0x80000002,
0x00008001, 0x0000fffe,
0xffffffff, 0x00000000)
PUTC ('\n')
/* MAC two small negative numbers on a zero total */
TEST_MAC (0x00000000, 0x00000000,
0xfffffffe, 0xfffffffd,
0x00000000, 0x00000006)
/* MAC two small negative numbers on a small positive total */
TEST_MAC (0x00000000, 0x00000006,
0xfffffffe, 0xfffffffd,
0x00000000, 0x0000000c)
/* MAC two small negative numbers on a small negative total */
TEST_MAC (0xffffffff, 0xffffffff,
0xfffffffe, 0xfffffffd,
0x00000000, 0x00000005)
PUTC ('\n')
/* MAC one small positive and one small negative number on a zero
total */
TEST_MAC (0x00000000, 0x00000000,
0x00000002, 0xfffffffd,
0xffffffff, 0xfffffffa)
/* MAC one small positive and one small negative number on a small
positive total */
TEST_MAC (0x00000000, 0x0000000c,
0x00000002, 0xfffffffd,
0x00000000, 0x00000006)
/* MAC one small positive and one small negative number on a moderate
positive total */
TEST_MAC (0x00000001, 0x00000005,
0x00000002, 0xfffffffd,
0x00000000, 0xffffffff)
/* MAC one small positive and one small negative number on a large
positive total */
TEST_MAC (0x7fffffff, 0xffffffff,
0x00000002, 0xfffffffd,
0x7fffffff, 0xfffffff9)
/* MAC one small positive and one small negative number on a small
negative total */
TEST_MAC (0xffffffff, 0xffffffff,
0x00000002, 0xfffffffd,
0xffffffff, 0xfffffff9)
/* MAC one small positive and one small negative number on a moderate
negative total */
TEST_MAC (0xffffffff, 0x00000005,
0x00000002, 0xfffffffd,
0xfffffffe, 0xffffffff)
/* MAC one small positive and one small negative number on a large
negative total */
TEST_MAC (0x80000000, 0x00000006,
0x00000002, 0xfffffffd,
0x80000000, 0x00000000)
PUTC ('\n')
/* MAC one moderate positive and one moderate negative number on a
zero total */
TEST_MAC (0x00000000, 0x00000000,
0x00008000, 0xffff0000,
0xffffffff, 0x80000000)
/* MAC one moderate positive and one moderate negative number on a
small positive total */
TEST_MAC (0x00000000, 0x00000006,
0x00008000, 0xffff0000,
0xffffffff, 0x80000006)
/* MAC one moderate positive and one moderate negative number on a
moderate positive total */
TEST_MAC (0x00000000, 0x80000000,
0x00008000, 0xffff0000,
0x00000000, 0x00000000)
/* MAC one moderate positive and one moderate negative number on a
large positive total */
TEST_MAC (0x7fffffff, 0xffffffff,
0x00008000, 0xffff0000,
0x7fffffff, 0x7fffffff)
/* MAC one moderate positive and one moderate negative number on a
small negative total */
TEST_MAC (0xffffffff, 0xffffffff,
0x00008000, 0xffff0000,
0xffffffff, 0x7fffffff)
/* MAC one moderate positive and one moderate negative number on a
moderate negative total */
TEST_MAC (0xffffffff, 0x7fffffff,
0x00008000, 0xffff0000,
0xfffffffe, 0xffffffff)
/* MAC one moderate positive and one moderate negative number on a
large negative total */
TEST_MAC (0x80000000, 0x80000000,
0x00008000, 0xffff0000,
0x80000000, 0x00000000)
PUTC ('\n')
/* ----------------------------------------------------------------------------
* Test of multiply signed and accumulate, l.maci
* ------------------------------------------------------------------------- */
_maci:
LOAD_STR (r3, "l.maci\n")
l.jal _puts
l.nop
/* MAC two small positive numbers on a zero total */
TEST_MACI (0x00000000, 0x00000000,
0x00000002, 0x0003,
0x00000000, 0x00000006)
/* MAC two small positive numbers on a small positive total */
TEST_MACI (0x00000000, 0x00000006,
0x00000002, 0x0003,
0x00000000, 0x0000000c)
/* MAC two small positive numbers on a moderate positive total */
TEST_MACI (0x00000000, 0xfffffffa,
0x00000002, 0x0003,
0x00000001, 0x00000000)
/* MAC two small positive numbers on a large positive total */
TEST_MACI (0x3fffffff, 0xfffffffa,
0x00000002, 0x0003,
0x40000000, 0x00000000)
/* MAC two small positive numbers on a small negative total */
TEST_MACI (0xffffffff, 0xfffffffa,
0x00000002, 0x0003,
0x00000000, 0x00000000)
/* MAC two small positive numbers on a moderate negative total */
TEST_MACI (0xffffffff, 0x00000000,
0x00000002, 0x0003,
0xffffffff, 0x00000006)
/* MAC two small positive numbers on a large negative total */
TEST_MACI (0x80000000, 0x00000000,
0x00000002, 0x0003,
0x80000000, 0x00000006)
PUTC ('\n')
tmp:
/* MAC two moderate positive numbers on a zero total */
TEST_MACI (0x00000000, 0x00000000,
0x00010002, 0x7fff,
0x00000000, 0x7ffffffe)
/* MAC two moderate positive numbers on a small positive total */
TEST_MACI (0x00000000, 0x00000002,
0x00010002, 0x7fff,
0x00000000, 0x80000000)
/* MAC two moderate positive numbers on a moderate positive total */
TEST_MACI (0x00000000, 0x80000002,
0x00010002, 0x7fff,
0x00000001, 0x00000000)
/* MAC two moderate positive numbers on a large positive total */
TEST_MACI (0x7fffffff, 0x80000001,
0x00010002, 0x7fff,
0x7fffffff, 0xffffffff)
/* MAC two moderate positive numbers on a small negative total */
TEST_MACI (0xffffffff, 0xffffffff,
0x00010002, 0x7fff,
0x00000000, 0x7ffffffd)
/* MAC two moderate positive numbers on a moderate negative total */
TEST_MACI (0xffffffff, 0x80000002,
0x00010002, 0x7fff,
0x00000000, 0x00000000)
/* MAC two moderate positive numbers on a large negative total */
TEST_MACI (0xfffffffe, 0x80000002,
0x00010002, 0x7fff,
0xffffffff, 0x00000000)
PUTC ('\n')
/* MAC two small negative numbers on a zero total */
TEST_MACI (0x00000000, 0x00000000,
0xfffffffe, 0xfffd,
0x00000000, 0x00000006)
/* MAC two small negative numbers on a small positive total */
TEST_MACI (0x00000000, 0x00000006,
0xfffffffe, 0xfffd,
0x00000000, 0x0000000c)
/* MAC two small negative numbers on a small negative total */
TEST_MACI (0xffffffff, 0xffffffff,
0xfffffffe, 0xfffd,
0x00000000, 0x00000005)
PUTC ('\n')
/* MAC one small positive and one small negative number on a zero
total */
TEST_MACI (0x00000000, 0x00000000,
0x00000002, 0xfffd,
0xffffffff, 0xfffffffa)
/* MAC one small positive and one small negative number on a small
positive total */
TEST_MACI (0x00000000, 0x0000000c,
0x00000002, 0xfffd,
0x00000000, 0x00000006)
/* MAC one small positive and one small negative number on a moderate
positive total */
TEST_MACI (0x00000001, 0x00000005,
0x00000002, 0xfffd,
0x00000000, 0xffffffff)
/* MAC one small positive and one small negative number on a large
positive total */
TEST_MACI (0x7fffffff, 0xffffffff,
0x00000002, 0xfffd,
0x7fffffff, 0xfffffff9)
/* MAC one small positive and one small negative number on a small
negative total */
TEST_MACI (0xffffffff, 0xffffffff,
0x00000002, 0xfffd,
0xffffffff, 0xfffffff9)
/* MAC one small positive and one small negative number on a moderate
negative total */
TEST_MACI (0xffffffff, 0x00000005,
0x00000002, 0xfffd,
0xfffffffe, 0xffffffff)
/* MAC one small positive and one small negative number on a large
negative total */
TEST_MACI (0x80000000, 0x00000006,
0x00000002, 0xfffd,
0x80000000, 0x00000000)
PUTC ('\n')
/* MAC one moderate positive and one moderate negative number on a
zero total */
TEST_MACI (0x00000000, 0x00000000,
0x00010000, 0x8000,
0xffffffff, 0x80000000)
/* MAC one moderate positive and one moderate negative number on a
small positive total */
TEST_MACI (0x00000000, 0x00000006,
0x00010000, 0x8000,
0xffffffff, 0x80000006)
/* MAC one moderate positive and one moderate negative number on a
moderate positive total */
TEST_MACI (0x00000000, 0x80000000,
0x00010000, 0x8000,
0x00000000, 0x00000000)
/* MAC one moderate positive and one moderate negative number on a
large positive total */
TEST_MACI (0x7fffffff, 0xffffffff,
0x00010000, 0x8000,
0x7fffffff, 0x7fffffff)
/* MAC one moderate positive and one moderate negative number on a
small negative total */
TEST_MACI (0xffffffff, 0xffffffff,
0x00010000, 0x8000,
0xffffffff, 0x7fffffff)
/* MAC one moderate positive and one moderate negative number on a
moderate negative total */
TEST_MACI (0xffffffff, 0x7fffffff,
0x00010000, 0x8000,
0xfffffffe, 0xffffffff)
/* MAC one moderate positive and one moderate negative number on a
large negative total */
TEST_MACI (0x80000000, 0x80000000,
0x00010000, 0x8000,
0x80000000, 0x00000000)
PUTC ('\n')
/* ----------------------------------------------------------------------------
* Test of multiply signed and accumulate, read and clear l.macrc
* ------------------------------------------------------------------------- */
_macrc:
LOAD_STR (r3, "l.macrc\n")
l.jal _puts
l.nop
/* MAC two small positive numbers on a zero total */
TEST_MACRC (0x00000000, 0x00000000,
0x00000002, 0x00000003,
0x00000006)
/* MAC two small positive numbers on a small positive total */
TEST_MACRC (0x00000000, 0x00000006,
0x00000002, 0x00000003,
0x0000000c)
/* MAC two small positive numbers on a moderate positive total */
TEST_MACRC (0x00000000, 0xfffffffa,
0x00000002, 0x00000003,
0x00000000)
/* MAC two small positive numbers on a large positive total */
TEST_MACRC (0x3fffffff, 0xfffffffa,
0x00000002, 0x00000003,
0x00000000)
/* MAC two small positive numbers on a small negative total */
TEST_MACRC (0xffffffff, 0xfffffffa,
0x00000002, 0x00000003,
0x00000000)
/* MAC two small positive numbers on a moderate negative total */
TEST_MACRC (0xffffffff, 0x00000000,
0x00000002, 0x00000003,
0x00000006)
/* MAC two small positive numbers on a large negative total */
TEST_MACRC (0x80000000, 0x00000000,
0x00000002, 0x00000003,
0x00000006)
PUTC ('\n')
/* MAC two moderate positive numbers on a zero total */
TEST_MACRC (0x00000000, 0x00000000,
0x00008001, 0x0000fffe,
0x7ffffffe)
/* MAC two moderate positive numbers on a small positive total */
TEST_MACRC (0x00000000, 0x00000002,
0x00008001, 0x0000fffe,
0x80000000)
/* MAC two moderate positive numbers on a moderate positive total */
TEST_MACRC (0x00000000, 0x80000002,
0x00008001, 0x0000fffe,
0x00000000)
/* MAC two moderate positive numbers on a large positive total */
TEST_MACRC (0x7fffffff, 0x80000001,
0x00008001, 0x0000fffe,
0xffffffff)
/* MAC two moderate positive numbers on a small negative total */
TEST_MACRC (0xffffffff, 0xffffffff,
0x00008001, 0x0000fffe,
0x7ffffffd)
/* MAC two moderate positive numbers on a moderate negative total */
TEST_MACRC (0xffffffff, 0x80000002,
0x00008001, 0x0000fffe,
0x00000000)
/* MAC two moderate positive numbers on a large negative total */
TEST_MACRC (0xfffffffe, 0x80000002,
0x00008001, 0x0000fffe,
0x00000000)
PUTC ('\n')
/* MAC two small negative numbers on a zero total */
TEST_MACRC (0x00000000, 0x00000000,
0xfffffffe, 0xfffffffd,
0x00000006)
/* MAC two small negative numbers on a small positive total */
TEST_MACRC (0x00000000, 0x00000006,
0xfffffffe, 0xfffffffd,
0x0000000c)
/* MAC two small negative numbers on a small negative total */
TEST_MACRC (0xffffffff, 0xffffffff,
0xfffffffe, 0xfffffffd,
0x00000005)
PUTC ('\n')
/* MAC one small positive and one small negative number on a zero
total */
TEST_MACRC (0x00000000, 0x00000000,
0x00000002, 0xfffffffd,
0xfffffffa)
/* MAC one small positive and one small negative number on a small
positive total */
TEST_MACRC (0x00000000, 0x0000000c,
0x00000002, 0xfffffffd,
0x00000006)
/* MAC one small positive and one small negative number on a moderate
positive total */
TEST_MACRC (0x00000001, 0x00000005,
0x00000002, 0xfffffffd,
0xffffffff)
/* MAC one small positive and one small negative number on a large
positive total */
TEST_MACRC (0x7fffffff, 0xffffffff,
0x00000002, 0xfffffffd,
0xfffffff9)
/* MAC one small positive and one small negative number on a small
negative total */
TEST_MACRC (0xffffffff, 0xffffffff,
0x00000002, 0xfffffffd,
0xfffffff9)
/* MAC one small positive and one small negative number on a moderate
negative total */
TEST_MACRC (0xffffffff, 0x00000005,
0x00000002, 0xfffffffd,
0xffffffff)
/* MAC one small positive and one small negative number on a large
negative total */
TEST_MACRC (0x80000000, 0x00000006,
0x00000002, 0xfffffffd,
0x00000000)
PUTC ('\n')
/* MAC one moderate positive and one moderate negative number on a
zero total */
TEST_MACRC (0x00000000, 0x00000000,
0x00008000, 0xffff0000,
0x80000000)
/* MAC one moderate positive and one moderate negative number on a
small positive total */
TEST_MACRC (0x00000000, 0x00000006,
0x00008000, 0xffff0000,
0x80000006)
/* MAC one moderate positive and one moderate negative number on a
moderate positive total */
TEST_MACRC (0x00000000, 0x80000000,
0x00008000, 0xffff0000,
0x00000000)
/* MAC one moderate positive and one moderate negative number on a
large positive total */
TEST_MACRC (0x7fffffff, 0xffffffff,
0x00008000, 0xffff0000,
0x7fffffff)
/* MAC one moderate positive and one moderate negative number on a
small negative total */
TEST_MACRC (0xffffffff, 0xffffffff,
0x00008000, 0xffff0000,
0x7fffffff)
/* MAC one moderate positive and one moderate negative number on a
moderate negative total */
TEST_MACRC (0xffffffff, 0x7fffffff,
0x00008000, 0xffff0000,
0xffffffff)
/* MAC one moderate positive and one moderate negative number on a
large negative total */
TEST_MACRC (0x80000000, 0x80000000,
0x00008000, 0xffff0000,
0x00000000)
PUTC ('\n')
/* ----------------------------------------------------------------------------
* Test of multiply signed and accumulate, l.msb
* ------------------------------------------------------------------------- */
_msb:
LOAD_STR (r3, "l.msb\n")
l.jal _puts
l.nop
/* MSB two small positive numbers on a zero total */
TEST_MSB (0x00000000, 0x00000000,
0x00000002, 0x00000003,
0xffffffff, 0xfffffffa)
/* MSB two small positive numbers on a small positive total */
TEST_MSB (0x00000000, 0x0000000c,
0x00000002, 0x00000003,
0x00000000, 0x00000006)
/* MSB two small positive numbers on a moderate positive total */
TEST_MSB (0x00000001, 0x00000000,
0x00000002, 0x00000003,
0x00000000, 0xfffffffa)
/* MSB two small positive numbers on a large positive total */
TEST_MSB (0x40000000, 0x00000000,
0x00000002, 0x00000003,
0x3fffffff, 0xfffffffa)
/* MSB two small positive numbers on a small negative total */
TEST_MSB (0xffffffff, 0xfffffffa,
0x00000002, 0x00000003,
0xffffffff, 0xfffffff4)
/* MSB two small positive numbers on a moderate negative total */
TEST_MSB (0xffffffff, 0x00000005,
0x00000002, 0x00000003,
0xfffffffe, 0xffffffff)
/* MSB two small positive numbers on a large negative total */
TEST_MSB (0x80000000, 0x00000006,
0x00000002, 0x00000003,
0x80000000, 0x00000000)
PUTC ('\n')
/* MSB two moderate positive numbers on a zero total */
TEST_MSB (0x00000000, 0x00000000,
0x00008001, 0x0000fffe,
0xffffffff, 0x80000002)
/* MSB two moderate positive numbers on a small positive total */
TEST_MSB (0x00000000, 0x00000002,
0x00008001, 0x0000fffe,
0xffffffff, 0x80000004)
/* MSB two moderate positive numbers on a moderate positive total */
TEST_MSB (0x00000000, 0x80000002,
0x00008001, 0x0000fffe,
0x00000000, 0x00000004)
/* MSB two moderate positive numbers on a large positive total */
TEST_MSB (0x7fffffff, 0x7ffffffd,
0x00008001, 0x0000fffe,
0x7ffffffe, 0xffffffff)
/* MSB two moderate positive numbers on a small negative total */
TEST_MSB (0xffffffff, 0xffffffff,
0x00008001, 0x0000fffe,
0xffffffff, 0x80000001)
/* MSB two moderate positive numbers on a moderate negative total */
TEST_MSB (0xffffffff, 0x80000002,
0x00008001, 0x0000fffe,
0xffffffff, 0x00000004)
/* MSB two moderate positive numbers on a large negative total */
TEST_MSB (0xfffffffe, 0x80000002,
0x00008001, 0x0000fffe,
0xfffffffe, 0x00000004)
PUTC ('\n')
/* MSB two small negative numbers on a zero total */
TEST_MSB (0x00000000, 0x00000006,
0xfffffffe, 0xfffffffd,
0x00000000, 0x00000000)
/* MSB two small negative numbers on a small positive total */
TEST_MSB (0x00000000, 0x0000000c,
0xfffffffe, 0xfffffffd,
0x00000000, 0x00000006)
/* MSB two small negative numbers on a small negative total */
TEST_MSB (0xffffffff, 0xffffffff,
0xfffffffe, 0xfffffffd,
0xffffffff, 0xfffffff9)
PUTC ('\n')
/* MSB one small positive and one small negative number on a zero
total */
TEST_MSB (0x00000000, 0x00000000,
0x00000002, 0xfffffffd,
0x00000000, 0x00000006)
/* MSB one small positive and one small negative number on a small
positive total */
TEST_MSB (0x00000000, 0x00000006,
0x00000002, 0xfffffffd,
0x00000000, 0x0000000c)
/* MSB one small positive and one small negative number on a moderate
positive total */
TEST_MSB (0x00000000, 0xffffffff,
0x00000002, 0xfffffffd,
0x00000001, 0x00000005)
/* MSB one small positive and one small negative number on a large
positive total */
TEST_MSB (0x7fffffff, 0xfffffff9,
0x00000002, 0xfffffffd,
0x7fffffff, 0xffffffff)
/* MSB one small positive and one small negative number on a small
negative total */
TEST_MSB (0xffffffff, 0xfffffff9,
0x00000002, 0xfffffffd,
0xffffffff, 0xffffffff)
/* MSB one small positive and one small negative number on a moderate
negative total */
TEST_MSB (0xfffffffe, 0xffffffff,
0x00000002, 0xfffffffd,
0xffffffff, 0x00000005)
/* MSB one small positive and one small negative number on a large
negative total */
TEST_MSB (0x80000000, 0x00000000,
0x00000002, 0xfffffffd,
0x80000000, 0x00000006)
PUTC ('\n')
/* MSB one moderate positive and one moderate negative number on a
zero total */
TEST_MSB (0x00000000, 0x00000000,
0x00008000, 0xffff0000,
0x00000000, 0x80000000)
/* MSB one moderate positive and one moderate negative number on a
small positive total */
TEST_MSB (0x00000000, 0x00000006,
0x00008000, 0xffff0000,
0x00000000, 0x80000006)
/* MSB one moderate positive and one moderate negative number on a
moderate positive total */
TEST_MSB (0x00000000, 0x80000000,
0x00008000, 0xffff0000,
0x00000001, 0x00000000)
/* MSB one moderate positive and one moderate negative number on a
large positive total */
TEST_MSB (0x7fffffff, 0x7fffffff,
0x00008000, 0xffff0000,
0x7fffffff, 0xffffffff)
/* MSB one moderate positive and one moderate negative number on a
small negative total */
TEST_MSB (0xffffffff, 0xffffffff,
0x00008000, 0xffff0000,
0x00000000, 0x7fffffff)
/* MSB one moderate positive and one moderate negative number on a
moderate negative total */
TEST_MSB (0xfffffffe, 0xffffffff,
0x00008000, 0xffff0000,
0xffffffff, 0x7fffffff)
/* MSB one moderate positive and one moderate negative number on a
large negative total */
TEST_MSB (0x80000000, 0x00000000,
0x00008000, 0xffff0000,
0x80000000, 0x80000000)
PUTC ('\n')
/* ----------------------------------------------------------------------------
* All done
* ------------------------------------------------------------------------- */
_exit:
LOAD_STR (r3, "Test completed\n")
l.jal _puts
l.nop
TEST_EXIT
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