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Power 6/32 Unix version 1.21

#include "evt_defs.h"

/*
 *********************************************************************
 *	FPP PIPELINED EVENTS TEST #15
 *
 *  This test will execute the following code: "LDF MULF STF"
 * with an overflow fault on the MULF. We will make sure that:
 * 1. The fault is detected, 
 * 2. the accumulator is cleared, and
 * 3. a floating '0' is stored if anything.
 *********************************************************************
*/
pipe15()
{
#define PIPE15_PAT 0x12341234
	asm("moval (r13),_pre_event_fp");	/* save the frame pointer */
	asm("moval (r14),_pre_event_sp");	/* save the stack pointer */
	precision  = SGL;
	test_event = ARITH_CODE;		/* expect an arithmetic fault */
	exp_code   = FLT_OVFL_CODE;		/*  - specificly overflow    */
	exp_event  = FALSE;			/* ... but not yet           */
	asm("movab _pipe15_ret,_event_return"); /* set event return address  */
	max_index = muf_ov_cnt;			/* set max operand index     */
	for( index = 0; index < max_index; index++ ) {
	     dbl_ld_acc  = muf_ov_dat[index].op_1;	/* get the Acc data  */
	     dbl_value_1 = muf_ov_dat[index].op_2;	/* get the '0' data  */
	     dbl_value_2.m = PIPE15_PAT;		/* background for STF*/
	     asm(".globl _pipe15_lp1");
	     asm("_pipe15_lp1:");
	     asm("bispsw $0x60");		/* enable ovfl & undfl events*/
	     asm("ldf _dbl_ld_acc");		/* load the Acc.             */
	     exp_event = test_event;		/* set the expect event flag */
	     asm("mulf _dbl_value_1");		/* trigger the event         */
	     asm("stf _dbl_value_2");		/* FPP stores before the evt.*/
/*
 * If we got to here then there was no event
*/
	     if( force_loop )
		  asm("jmp _pipe15_lp1");;	/* loop on the error         */
	     exp_event = FALSE;			/* reset event expected flag */
	     asm("movl _pre_event_fp,fp");	/* restore the frame pointer */
	     asm("movl _pre_event_sp,sp");	/* restore the stack pointer */
	     asm("bicpsw $0x60");		/* disable ovfl & undfl evts */
	     no_pipe15_evt();;			/* report the error          */
/*
 * Come here after the event
*/
	     asm(".globl _pipe15_ret");
	     asm("_pipe15_ret:");
	     asm("movl _pre_event_fp,fp");	/* restore the frame pointer */
	     asm("movl _pre_event_sp,sp");	/* restore the stack pointer */
	     if( force_loop )
		  asm("jmp _pipe15_lp1");;	/* loop on the error         */
	     asm("bicpsw $0x60");		/* disable ovfl & undfl evts */
	     if( post_evt_acc.m )		/* was the Acc cleared?      */
		  bad_pipe15_result();		/* incorrect result error    */
	     else if( (dbl_value_2.m ) && 	/* either a ZERO s/b stored, */
		      (dbl_value_2.m != 0x80000000) && /* or a RESERVED OP,  */
		      (dbl_value_2.m != PIPE15_PAT) )  /* or no store at all */
		  bad_pipe15_store();		/* incorrect store error     */
	}
}



/****************************************************************************
*		Report an "EVENT NOT DETECTED" error
*
* Cycle: xx. EVT test xx. subtest xx. No overflow fault seen. index = xx
* inst = LDF op1, MULF op2, STF op3    (overflow fault on the MULF)
* op1 = xxxxxxxx,  op2 = xxxxxxxx,  init op3 = xxxxxxxx,  final op3 = xxxxxxxx
****************************************************************************/
no_pipe15_evt()
{
	errcnt++;				/* bump the error count    */
	if ( prt_error ) 
	{
	     print_pipe15_er( ". No overflow fault seen" );
	     writes("op1 = ");
	     write32h( dbl_ld_acc.m );
	     writes(",  op2 = ");
	     write32h( dbl_value_1.m );
	     writes(",  init op3 = ");
	     write32h( PIPE15_PAT );
	     writes(",  final op3 = ");
	     write32h( dbl_value_2.m );
	     writec('\n');
	}
	if ( halt_flg ) 			/* halt on error?          */
	     pipe15_halt( 1 );			/* halt with a code of 1   */
	if ( loop_on_err ) 
	{
	     force_loop = TRUE;			/* set the force loop flag */
	     asm("jmp _pipe15_lp1");		/* and loop                */
	};
}




/****************************************************************************
*		Report an "BAD ACCUMULATOR AFTER THE EVENT" error
*
* Cycle: xx. EVT test xx. subtest xx. Bad final Accumulator. index = xx
* inst = LDF op1, MULF op2, STF op3    (overflow fault on the MULF)
* op1 = xxxxxxxx, final Acc. = xxxxxxxx,   initial op3 = xxxxxxxx
* op2 = xxxxxxxx,   expected = xxxxxxxx,     final op3 = xxxxxxxx
****************************************************************************/
bad_pipe15_result()
{
	errcnt++;				/* bump the error count    */
	if ( prt_error ) 
	{
	     print_pipe15_er( ". Bad final Accumulator" );
	     writes("op1 = ");
	     write32h( dbl_ld_acc.m );
	     writes(",   final Acc. = ");
	     write32h( post_evt_acc.m );
	     writes(",   initial op3  = ");
	     write32h( PIPE15_PAT );
	     writes("\nop2 = ");
	     write32h( dbl_value_1.m );
	     writes(",     expected = ");
	     write32h( 0 );			/* the expected result = 0 */
	     writes(",     final op3  = ");
	     write32h( dbl_value_2.m );
	     writec('\n');
	}
	if ( halt_flg ) 			/* halt on error?           */
	     pipe15_halt( 2 );			/* halt with a code of 2    */
	if ( loop_on_err ) 
	{
	     force_loop = TRUE;			/* set the force loop flag */
	     asm("jmp _pipe15_lp1");		/* and loop                */
	};
}




/****************************************************************************
*		Report a "BAD RESULT STORED AFTER THE EVENT" error
*
* Cycle: xx. EVT test xx. subtest xx. Bad STF OP3 result. index = xx
* inst = LDF op1, MULF op2, STF op3    (overflow fault on the MULF)
* op1 = xxxxxxxx,  initial op3 = xxxxxxxx,    final Acc. = xxxxxxxx
* op2 = xxxxxxxx,    final op3 = xxxxxxxx,  op3 expected = xxxxxxxx
****************************************************************************/
bad_pipe15_store()
{
	errcnt++;				/* bump the error count    */
	if ( prt_error ) 
	{
	     print_pipe15_er( ". Bad STF OP3 result" );
	     writes("op1 = ");
	     write32h( dbl_ld_acc.m );
	     writes(",  initial op3  = ");
	     write32h( PIPE15_PAT );
	     writes(",    final Acc. = ");
	     write32h( post_evt_acc.m );
	     writes("\nop2 = ");
	     write32h( dbl_value_1.m );
	     writes(",    final op3  = ");
	     write32h( dbl_value_2.m );
	     writes(",  op3 expected = 80000000\n");	/* exp = Reserved Op */
	}
	if ( halt_flg ) 			/* halt on error?           */
	     pipe15_halt( 3 );			/* halt with a code of 2    */
	if ( loop_on_err ) 
	{
	     force_loop = TRUE;			/* set the force loop flag */
	     asm("jmp _pipe15_lp1");		/* and loop                */
	};
}






/****************************************************************************
*		Report an error message of the form:
*
* Cycle: xx. EVT test xx. subtest xx. <your message here>. index = xx
* inst = LDF op1, MULF op2, STF op3    (overflow fault on the MULF)
****************************************************************************/
print_pipe15_er( msg )
char *msg;					/* error message to print   */
{
	     if( errcnt == 1 )			/* 1st error?               */
		  writes(" \n");		/* start a new print line   */
	     writes("Cycle: ");
	     writed( cycle );
	     writes("  EVT test ");
	     writed( test_no );
	     writes(". subtest ");
	     writed( subtest );
	     writes( msg );			/* print the message */
	     writes(". index = ");
	     writed( index );
	     writes(
     "\ninst = LDF op1, MULF op2, STF op3    (overflow fault on the MULF)\n");
}



/****************************************************************************
*		halt on error routine
****************************************************************************/
pipe15_halt( code )
int code;				/* error code to halt with */
{
	err_code = code;
	sgl_value_1 = dbl_ld_acc.m;
	sgl_value_2 = dbl_value_1.m;
	sgl_value_3 = post_evt_acc.m;
	sgl_value_4 = PIPE15_PAT;
	sgl_value_5 = dbl_value_2.m;
	asm("movl _test_no,r0");		/* r0  = test number        */
	asm("movl _subtest,r1");		/* r1  = subtest number     */
	asm("movl _err_code,r2");		/* r2  = error code         */
	asm("movl _cycle,r3");			/* r3  = cycle count        */
	asm("movl _sgl_value_1,r4");		/* r4  = initial acc.       */
	asm("movl _sgl_value_2,r5");		/* r5  = MULF operand       */
	asm("movl _sgl_value_3,r6");		/* r6  = final acc.         */
	asm("clrl r7");				/* r7  = expected acc.      */
	asm("movl _sgl_value_4,r8");		/* r8  = initial op3 value  */
	asm("movl _sgl_value_5,r9");		/* r9  = final op3 value    */
	asm("clrl r10");			/* r10 = expected op3 value */
	asm("movl _index,r11");			/* r11 = data index         */
	asm("halt");				/* HALT ...                 */
}

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