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2002-06-03 Chris Demetriou <cgd@broadcom.com>

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Ed Satterthwaite  <ehs@broadcom.com>

	* configure.in (mipsisa64sb1*-*-*): New target for supporting
	Broadcom SiByte SB-1 processor configurations.
	* configure: Regenerate.
	* sb1.igen: New file.
	* mips.igen: Include sb1.igen.
	(sb1): New model.
	* Makefile.in (IGEN_INCLUDE): Add sb1.igen.
	* mdmx.igen: Add "sb1" model to all appropriate functions and
	instructions.
	* mdmx.c (AbsDiffOB, AvgOB, AccAbsDiffOB): New functions.
	(ob_func, ob_acc): Reference the above.
	(qh_acc): Adjust to keep the same size as ob_acc.
	* sim-main.h (status_SBX, MX_VECT_ABSD, MX_VECT_AVG, MX_AbsDiff)
	(MX_Avg, MX_VECT_ABSDA, MX_AbsDiffC): New macros.
This commit is contained in:
Chris Demetriou
2002-06-03 21:00:29 +00:00
parent cf6fb9ce2f
commit 7cbea0890e
9 changed files with 316 additions and 19 deletions
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31
sim/mips/mdmx.c
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@@ -250,7 +250,6 @@ MsgnQH(signed16 ts, signed16 tt)
return t;
}
static signed16
SRAQH(signed16 ts, signed16 tt)
{
@@ -259,6 +258,21 @@ SRAQH(signed16 ts, signed16 tt)
}
/* "pabsdiff" and "pavg" are defined only for OB format. */
static unsigned8
AbsDiffOB(unsigned8 ts, unsigned8 tt)
{
return (ts >= tt ? ts - tt : tt - ts);
}
static unsigned8
AvgOB(unsigned8 ts, unsigned8 tt)
{
return ((unsigned32)ts + (unsigned32)tt + 1) >> 1;
}
/* Dispatch tables for operations that update a CPR. */
static const QH_FUNC qh_func[] = {
@@ -270,7 +284,7 @@ static const QH_FUNC qh_func[] = {
static const OB_FUNC ob_func[] = {
AndOB, NorOB, OrOB, XorOB, SLLOB, SRLOB,
AddOB, SubOB, MinOB, MaxOB,
MulOB, NULL, NULL, NULL, NULL
MulOB, NULL, NULL, AbsDiffOB, AvgOB
};
/* Auxiliary functions for CPR updates. */
@@ -743,17 +757,26 @@ AccSubLOB(signed24 *a, unsigned8 ts, unsigned8 tt)
*a = (signed24)ts - (signed24)tt;
}
static void
AccAbsDiffOB(signed24 *a, unsigned8 ts, unsigned8 tt)
{
unsigned8 t = (ts >= tt ? ts - tt : tt - ts);
*a += (signed24)t;
}
/* Dispatch tables for operations that update a CPR. */
static const QH_ACC qh_acc[] = {
AccAddAQH, AccAddAQH, AccMulAQH, AccMulLQH,
SubMulAQH, SubMulLQH, AccSubAQH, AccSubLQH
SubMulAQH, SubMulLQH, AccSubAQH, AccSubLQH,
NULL
};
static const OB_ACC ob_acc[] = {
AccAddAOB, AccAddLOB, AccMulAOB, AccMulLOB,
SubMulAOB, SubMulLOB, AccSubAOB, AccSubLOB
SubMulAOB, SubMulLOB, AccSubAOB, AccSubLOB,
AccAbsDiffOB
};