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Power 6/32 Unix version 1.21
#include "fpp_defs.h"
/*****************************************************************************
*
* LND - DOUBLE PRECISION FLOATING POINT LOAD_NEGATE TEST
*
*****************************************************************************/
lnd()
{
asm(".globl _lnd_t");
asm("_lnd_t:"); /* entry address */
if( ( cycle == 1 ) && ( prt_hdrs ) ) /* print headers on 1st pass */
writes(" LND");
lnd_1(); /* load through a register */
lnd_2(); /* load through the cache */
lnd_3(); /* register stability */
lnd_4(); /* PSL stability test */
asm("jmp *return"); /* return to the test monitor */
}
/************************************************************************
*
* SUBTEST 1 - load_negate through a register
*
************************************************************************/
lnd_1()
{
force_loop = FALSE;
subtest = 1;
for( index = 0; index < max_lnd_1_index; index++ ) {
sgl_value_1 = lnd_1_data[index].ld.m; /* get operands MSW */
sgl_value_2 = lnd_1_data[index].ld.l; /* get operands LSW */
dbl_expected = lnd_1_data[index].exp; /* get expected result */
dbl_ld_acc.m = sgl_value_1;
dbl_ld_acc.l = sgl_value_2;
/*
* If LOOP ON ERROR is set, this is the loop for this subtest.
* The force loop flag is set after the first error.
*/
asm("_lnd_1_lp1:");
asm("movl _sgl_value_1,r4"); /* put the value to negate */
asm("movl _sgl_value_2,r5"); /* in r6 and r7 */
asm("lnd r4"); /* load and negate value */
asm("std r6"); /* store the result in r6 */
if( force_loop ) /* and r7 */
asm("brb _lnd_1_lp1");; /* loop on the error */
/*
* end error loop - test the results
*/
asm("movl r6,_sgl_value_3"); /* move R6 data to cache */
asm("movl r7,_sgl_value_4"); /* move R7 data to cache */
dbl_st_acc.m = sgl_value_3;
dbl_st_acc.l = sgl_value_4;
if( ( sgl_value_3 != dbl_expected.m ) ||/* COMPARE the values */
( sgl_value_4 != dbl_expected.l ) ){
errcnt++; /* bump the error count */
if( prt_error ) {
writes(" \n"); /* start a new print line */
writes("cycle: ");
writed( cycle );
writes(" LND test ");
writed( test_no );
writes(", subtest 1 (Reg. Data) - BAD FINAL ACC\n");
print_lnd_data();
writes(", index = ");
writed( index );
writec('\n');
writes(" Acc expected = ");
write32h( dbl_expected.m );
writec(' ');
writes( dbl_expected.l );
writec('\n');
}
if( halt_flg )
lnd_er_halt( BAD_ACC_HLT ); /* halt on the error */
if( loop_on_err ) {
force_loop = TRUE; /* set the force loop flag */
asm("brw _lnd_1_lp1");; /* and loop on the error */
} /* end of loop on error */
} /* end of compare error */
} /* end of WHILE loop */
} /* end of subtest 1 */
/************************************************************************
*
* SUBTEST 2 - load_negate through memory
*
************************************************************************/
lnd_2()
{
force_loop = FALSE;
subtest = 2;
for( index = 0; index < max_lnd_1_index; index++ ) {
dbl_ld_acc = lnd_1_data[index].ld; /* get value to negate */
dbl_expected = lnd_1_data[index].exp; /* get expected result */
/*
* If LOOP ON ERROR is set, this is the loop for this subtest.
* The force loop flag is set after the first error.
*/
asm("_lnd_2_lp1:");
asm("lnd _dbl_ld_acc"); /* load and negate the value */
asm("std _dbl_st_acc"); /* store the result */
if( force_loop )
asm("brb _lnd_2_lp1");; /* loop on the error */
/*
* end error loop - test the results
*/
if( (dbl_st_acc.m != dbl_expected.m) || /* compare the final & */
(dbl_st_acc.l != dbl_expected.l) ) { /* the expected values */
errcnt++; /* bump the error count */
if( prt_error ) {
writes(" \n"); /* start a new print line */
writes("cycle: ");
writed( cycle );
writes(" LND test ");
writed( test_no );
writes(", subtest 2 (Cache Data) - BAD FINAL ACC\n");
print_lnd_data();
writes(", index = ");
writed( index );
writec('\n');
writes(" Acc expected = ");
write32h( dbl_expected.m );
writec(' ');
writes( dbl_expected.l );
writec('\n');
}
if( halt_flg )
lnd_er_halt( BAD_ACC_HLT ); /* halt on the error */
if( loop_on_err ) {
force_loop = TRUE; /* set the force loop flag */
asm("brw _lnd_2_lp1");; /* and loop on the error */
} /* end of loop on error */
} /* end of compare error */
} /* end of WHILE loop */
} /* end of subtest 2 */
/************************************************************************
*
* SUBTEST 3 - Check for register corruption
*
************************************************************************/
lnd_3()
{
force_loop = FALSE; /* clear force_loop flg */
subtest = 3;
fill_reg_buf( load_regs ); /* get patterns for regs */
index = 0;
dbl_ld_acc = lnd_1_data[index].ld; /* get value to negate */
dbl_expected = lnd_1_data[index].exp; /* get expected result */
/*
* If LOOP ON ERROR is set, this is the loop for this subtest.
* The force loop flag is set after the first error.
*/
asm("_lnd_3_lp1:");
asm("loadr $0x1fff,_load_regs"); /* load regs 0 - 12 */
asm("nop");
asm("lnd _dbl_ld_acc"); /* load and negate the value */
asm("nop");
asm("storer $0x1fff,_store_regs"); /* store regs 0 - 12 */
asm("stf _dbl_st_acc"); /* save the accumulator */
if( force_loop )
asm("brb _lnd_3_lp1");; /* loop on the error */
/*
* Now compare the stored register values to those that were loaded
*/
index2 = 0;
while( (load_regs[index2] == store_regs[index2]) && (index2 < 13) )
index2++; /* check reg values */
if( index2 < 13 ) { /* error if index2 < 13 */
errcnt++; /* bump the error count */
if( prt_error ) {
writes(" \n"); /* start a new print line */
writes("cycle: ");
writed( cycle );
writes(" LND test ");
writed( test_no );
writes(", subtest 3 - A REGISTER WAS CHANGED\n");
print_lnd_data(); /* print the operands */
writes("\n");
writes("register "); /* print the information */
writed( index2 ); /* about the corrupted */
writes(" = "); /* register */
write32h( store_regs[index2] );
writes(", should be = ");
write32h( load_regs[index2] );
writes("\n");
}
if( halt_flg )
lnd_er_halt( BAD_REG_HLT ); /* halt on the error */
if( loop_on_err ) {
force_loop = TRUE; /* set the force loop flag */
asm("brw _lnd_3_lp1");; /* and loop on the error */
} /* end of loop on error */
} /* end of register corruption error */
} /* end of subtest 3 */
/************************************************************************
*
* SUBTEST 4 - Check for PSL corruption
*
************************************************************************/
lnd_4()
{
force_loop = FALSE; /* clear force_loop flg */
subtest = 4;
fill_reg_buf( load_regs ); /* get patterns for regs */
for( index = 0; index < 3; index++ ) {
dbl_ld_acc = lnd_1_data[index].ld; /* get value to negate */
dbl_expected = lnd_1_data[index].exp; /* get expected */
sgl_dummy1 = status_array[status_index]; /* status = +, -, 0 */
/*
* If LOOP ON ERROR is set, this is the loop for this subtest.
* The force loop flag is set after the first error.
*/
asm("_lnd_4_lp1:");
asm("tstl _sgl_dummy1"); /* set the PSL status */
asm("movpsl _init_psl"); /* save the initial PSL */
asm("lnd _dbl_ld_acc"); /* load and negate the value */
asm("nop");
asm("movpsl _psl_val"); /* save the final PSL */
asm("stf _dbl_st_acc"); /* save the accumulator */
if( force_loop )
asm("brb _lnd_4_lp1");; /* loop on the error */
/*
* Now compare the final PSL to the initial PSL -they should be the same
*/
exp_psl = init_psl;
if( psl_val != init_psl ) {
errcnt++; /* bump the error count */
if( prt_error ) {
writes(" \n"); /* start a new print line */
writes("cycle: ");
writed( cycle );
writes(" LND test ");
writed( test_no );
writes(", subtest 4 - INCORRECT FINAL PSL\n");
print_lnd_data(); /* print the operands */
writes("\n");
writes("initial PSL = ");
write32h( init_psl );
writes(", final PSL = ");
write32h( psl_val );
writes(", expected PSL = ");
write32h( exp_psl );
writes("\n");
}
if( halt_flg )
lnd_er_halt( BAD_PSL_HLT ); /* halt on the error */
if( loop_on_err ) {
force_loop = TRUE; /* set the force loop flag */
asm("brw _lnd_4_lp1");; /* and loop on the error */
} /* end of loop on error */
} /* end of PSL corruption error */
} /* end of WHILE loop */
} /* end of subtest 4 */
/**************************************************************************
*
* PRINT THE DATA AND STORE RESULTS
*
* Acc loaded = xxxxxxxx xxxxxxxx, Acc stored = xxxxxxxx xxxxxxxx, index = xx
* Acc expected = xxxxxxxx xxxxxxxx
**************************************************************************/
print_lnd_data()
{
writes(" Acc loaded = ");
write32h( dbl_ld_acc.m );
writec(' ');
write32h( dbl_ld_acc.l );
writes(", Acc. stored = ");
write32h( dbl_st_acc.m );
writec(' ');
write32h( dbl_st_acc.l );
}
/**************************************************************************
*
* HALT ON ERROR ROUTINE
*
**************************************************************************/
lnd_er_halt( halt_code )
int halt_code;
{
sgl_value_1 = dbl_ld_acc.m;
sgl_value_2 = dbl_ld_acc.l;
sgl_value_3 = dbl_st_acc.m;
sgl_value_4 = dbl_st_acc.l;
sgl_dummy1 = halt_code; /* get the error type */
asm("movl _test_no,r0"); /* r0 = test number */
asm("movl _subtest,r1"); /* r1 = subtest number */
asm("movl _sgl_dummy1,r2"); /* r2 = error code */
asm("movl _cycle,r3"); /* r3 = cycle count */
asm("movl _sgl_value_1,r4"); /* r4 = MS operand 1 */
asm("movl _sgl_value_2,r5"); /* r5 = LS operand 1 */
asm("movl _sgl_value_3,r6"); /* r6 = MS result */
asm("movl _sgl_value_4,r7"); /* r7 = LS result */
if( halt_code == BAD_ACC_HLT ) {
sgl_value_1 = dbl_expected.m;
sgl_value_2 = dbl_expected.l;
asm("movl _sgl_value_1,r8"); /* r8 = MS expected */
asm("movl _sgl_value_2,r9"); /* r9 = LS expected */
asm("movl _index,r10"); /* r10 = data index */
} else
if( halt_code == BAD_REG_HLT ) {
sgl_dummy1 = load_regs[index2];
sgl_dummy2 = store_regs[index2];
asm("movl _index2,r8"); /* r8 = bad register # */
asm("movl _sgl_dummy2,r9"); /* r9 = actual value */
asm("movl _sgl_dummy1,r10"); /* r10 = expected value */
} else
if( halt_code == BAD_PSL_HLT ) {
asm("movl _init_psl,r8"); /* r8 = initial PSL */
asm("movl _psl_val,r9"); /* r9 = final PSL */
asm("movl _exp_psl,r10"); /* r10 = expected PSL */
};
asm("halt"); /* HALT ... */
}
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