Status register

Intrinsics to set, get and clear bits of the status register. More...

Overview

Intrinsics to set, get and clear bits of the status register.

Lower 32 bit MC0:

Field	Bits	Meaning
C - Carry	[0]	ALU overflow carry bit
SS0_TLAST - TLAST	[1]	Reading narrow input stream (SS0) returned TLAST condition
SS1_TLAST - TLAST	[2]	Reading narrow input stream (SS1) returned TLAST condition
WSS0_TLAST - TLAST	[3]	Reading wide input stream (WSS0) returned TLAST condition
WSS1_TLAST - TLAST	[4]	Reading wide input stream (WSS1) returned TLAST condition
SS0_NB_SC - Non blocking	[5]	Reading a narrow input stream (SS0) returned a non blocking SUCCESS condition
SS1_NB_SC - Non blocking	[6]	Reading a narrow input stream (SS1) returned a non blocking SUCCESS condition
MS0_NB_SC - Non blocking	[7]	Reading a narrow output stream (MS0) returned a non blocking SUCCESS condition
MS1_NB_SC - Non blocking	[8]	Reading a narrow output stream (MS1) returned a non blocking SUCCESS condition
SRS_SAT - Saturation	[9]	Saturation in SRS for all lanes
UPS_SAT - Saturation	[10]	Saturation in UPS for all lanes
Reserved	[11:15]	Reserved bits
FP_ADD- Exceptions	[16:23]	Floating point exceptions for floating point adds
FP_MUL- Exceptions	[24:31]	Floating point exceptions for floating point muls

Higher 32 bit MC1:

Field	Bits	Meaning
FP_NLF - Exceptions	[0:7]	Floating point exceptions for datatype converts
FP_FIX2FLOAT - Exceptions	[8:15]	Floating point exceptions for datatype converts
FP_FLOAT2FIX - Exceptions	[16:23]	Floating point exceptions for datatype converts
Reserved	[24:31]	Reserved bits

Floating point flags

There are 8 exception bits per floating point functional unit.

Name	value	Comments
zero	0	Integer or floating point output is zero
inf	1	Floating point output is infinity
inv	2	Invalid floating point operation (NaN input also causes this)
tiny	3	Floating point output after rounding has a magnitude less than minimum normalized number and is not exact zero
huge	4	Result after rounding has magnitude greater than maximum normalized number
inex	5	Integer/floating point output is not equal to the infinitely precise result
HugeInt	6	Integer result greater than largest representable two's complement integer with same sign
div0	7	Divide by zero

Full register access
Get or set the low or high MC register Parameter can be 0 or 1 and specifies the 32bit word to be accessed. 0 is lower 32 bit and 1 is higher 32 bit. See: Bit meanings for what each bit means.
unsigned int	get_MC (unsigned int idx)
void	set_MC (unsigned int val, unsigned int idx)

Miscellaneous
unsigned int	get_srs_sat ()
	Get "srs saturation. " For existing flags see here.
void	set_srs_sat ()
	Set "srs saturation. " For existing flags see here.
void	clr_srs_sat ()
	Clear "srs saturation. " For existing flags see here.
unsigned int	get_ups_sat ()
	Get "upshift saturation. " For existing flags see here.
void	set_ups_sat ()
	Set "upshift saturation. " For existing flags see here.
void	clr_ups_sat ()
	Clear "upshift saturation. " For existing flags see here.

Stream TLAST condition
Reading a narrow input stream(SS0/SS1) or wide input stream(WSS0/WSS1) returned a TLAST condition.
unsigned int	get_ss0_tlast ()
	Get "narrow stream 0 tlast flag. ".
void	set_ss0_tlast ()
	Set "narrow stream 0 tlast flag. ".
void	clr_ss0_tlast ()
	Clear "narrow stream 0 tlast flag. ".
unsigned int	get_ss1_tlast ()
	Get "narrow stream 1 tlast flag. ".
void	set_ss1_tlast ()
	Set "narrow stream 1 tlast flag. ".
void	clr_ss1_tlast ()
	Clear "narrow stream 1 tlast flag. ".
unsigned int	get_wss0_tlast ()
	Get "wide stream 0 tlast flag. ".
void	set_wss0_tlast ()
	Set "wide stream 0 tlast flag. ".
void	clr_wss0_tlast ()
	Clear "wide stream 0 tlast flag. ".
unsigned int	get_wss1_tlast ()
	Get "wide stream 1 tlast flag. ".
void	set_wss1_tlast ()
	Set "wide stream 1 tlast flag. ".
void	clr_wss1_tlast ()
	Clear "wide stream 1 tlast flag. ".

Stream SUCCESS condition
Reading a narrow input stream(SS0/SS1) or writing to narrow output stream(MS0/MS1) returned a non-blocking SUCCESS condition.
unsigned int	get_ss0_success ()
	Get "narrow stream 0 success flag. ".
void	set_ss0_success ()
	Set "narrow stream 0 success flag. ".
void	clr_ss0_success ()
	Clear "narrow stream 0 success flag. ".
unsigned int	get_ss1_success ()
	Get "narrow stream 1 success flag. ".
void	set_ss1_success ()
	Set "narrow stream 1 success flag. ".
void	clr_ss1_success ()
	Clear "narrow stream 1 success flag. ".
unsigned int	get_ms0_success ()
	Get "wide stream 0 success flag. ".
void	set_ms0_success ()
	Set "wide stream 0 success flag. ".
void	clr_ms0_success ()
	Clear "wide stream 0 success flag. ".
unsigned int	get_ms1_success ()
	Get "wide stream 1 success flag. ".
void	set_ms1_success ()
	Set "wide stream 1 success flag. ".
void	clr_ms1_success ()
	Clear "wide stream 1 success flag. ".

Floating point add exceptions
Floating point exceptions for floating point vector adds. See also: flags.
unsigned int	get_fpadd_zero ()
	Get "floating point addition zero flag. " For existing flags see here.
void	set_fpadd_zero ()
	Set "floating point addition zero flag. " For existing flags see here.
void	clr_fpadd_zero ()
	Clear "floating point addition zero flag. " For existing flags see here.
unsigned int	get_fpadd_inf ()
	Get "floating point addition infinite flag. " For existing flags see here.
void	set_fpadd_inf ()
	Set "floating point addition infinite flag. " For existing flags see here.
void	clr_fpadd_inf ()
	Clear "floating point addition infinite flag. " For existing flags see here.
unsigned int	get_fpadd_inv ()
	Get "floating point addition invalid flag. " For existing flags see here.
void	set_fpadd_inv ()
	Set "floating point addition invalid flag. " For existing flags see here.
void	clr_fpadd_inv ()
	Clear "floating point addition invalid flag. " For existing flags see here.
unsigned int	get_fpadd_tiny ()
	Get "floating point addition tiny flag. " For existing flags see here.
void	set_fpadd_tiny ()
	Set "floating point addition tiny flag. " For existing flags see here.
void	clr_fpadd_tiny ()
	Clear "floating point addition tiny flag. " For existing flags see here.
unsigned int	get_fpadd_huge ()
	Get "floating point addition huge flag. " For existing flags see here.
void	set_fpadd_huge ()
	Set "floating point addition huge flag. " For existing flags see here.
void	clr_fpadd_huge ()
	Clear "floating point addition huge flag. " For existing flags see here.
unsigned int	get_fpadd_inex ()
	Get "floating point addition inexact flag. " For existing flags see here.
void	set_fpadd_inex ()
	Set "floating point addition inexact flag. " For existing flags see here.
void	clr_fpadd_inex ()
	Clear "floating point addition inexact flag. " For existing flags see here.

Floating point mul exceptions
Floating point exceptions for floating point vector muls. See also: flags.
unsigned int	get_fpmul_zero ()
	Get "floating point multiplication zero flag. " For existing flags see here.
void	set_fpmul_zero ()
	Set "floating point multiplication zero flag. " For existing flags see here.
void	clr_fpmul_zero ()
	Clear "floating point multiplication zero flag. " For existing flags see here.
unsigned int	get_fpmul_inf ()
	Get "floating point multiplication infinite flag. " For existing flags see here.
void	set_fpmul_inf ()
	Set "floating point multiplication infinite flag. " For existing flags see here.
void	clr_fpmul_inf ()
	Clear "floating point multiplication infinite flag. " For existing flags see here.
unsigned int	get_fpmul_inv ()
	Get "floating point multiplication invalid flag. " For existing flags see here.
void	set_fpmul_inv ()
	Set "floating point multiplication invalid flag. " For existing flags see here.
void	clr_fpmul_inv ()
	Clear "floating point multiplication invalid flag. " For existing flags see here.
unsigned int	get_fpmul_tiny ()
	Get "floating point multiplication tiny flag. " For existing flags see here.
void	set_fpmul_tiny ()
	Set "floating point multiplication tiny flag. " For existing flags see here.
void	clr_fpmul_tiny ()
	Clear "floating point multiplication tiny flag. " For existing flags see here.
unsigned int	get_fpmul_huge ()
	Get "floating point multiplication huge flag. " For existing flags see here.
void	set_fpmul_huge ()
	Set "floating point multiplication huge flag. " For existing flags see here.
void	clr_fpmul_huge ()
	Clear "floating point multiplication huge flag. " For existing flags see here.
unsigned int	get_fpmul_inex ()
	Get "floating point multiplication inexact flag. " For existing flags see here.
void	set_fpmul_inex ()
	Set "floating point multiplication inexact flag. " For existing flags see here.
void	clr_fpmul_inex ()
	Clear "floating point multiplication inexact flag. " For existing flags see here.

Floating point nlf exceptions
Floating point exceptions for floating point inv_sqrt, sqrt and inverse operations. See also: flags.
unsigned int	get_fpnlf_zero ()
	Get "non linear function zero flag. " For existing flags see here.
void	set_fpnlf_zero ()
	Set "non linear function zero flag. " For existing flags see here.
void	clr_fpnlf_zero ()
	Clear "non linear function zero flag. " For existing flags see here.
unsigned int	get_fpnlf_inf ()
	Get "non linear function infinite flag. " For existing flags see here.
void	set_fpnlf_inf ()
	Set "non linear function infinite flag. " For existing flags see here.
void	clr_fpnlf_inf ()
	Clear "non linear function infinite flag. " For existing flags see here.
unsigned int	get_fpnlf_inv ()
	Get "non linear function invalid flag. " For existing flags see here.
void	set_fpnlf_inv ()
	Set "non linear function invalid flag. " For existing flags see here.
void	clr_fpnlf_inv ()
	Clear "non linear function invalid flag. " For existing flags see here.
unsigned int	get_fpnlf_tiny ()
	Get "non linear function tiny flag. " For existing flags see here.
void	set_fpnlf_tiny ()
	Set "non linear function tiny flag. " For existing flags see here.
void	clr_fpnlf_tiny ()
	Clear "non linear function tiny flag. " For existing flags see here.
unsigned int	get_fpnlf_inex ()
	Get "non linear function inexact flag. " For existing flags see here.
void	set_fpnlf_inex ()
	Set "non linear function inexact flag. " For existing flags see here.
void	clr_fpnlf_inex ()
	Clear "non linear function inexact flag. " For existing flags see here.
unsigned int	get_fpnlf_div0 ()
	Get "non linear function division by zero flag. " For existing flags see here.
void	set_fpnlf_div0 ()
	Set "non linear function division by zero flag. " For existing flags see here.
void	clr_fpnlf_div0 ()
	Clear "non linear function division by zero flag. " For existing flags see here.

Fixed to float exceptions
Floating point exceptions for datatype converts. See also: flags.
unsigned int	get_fx2fl_zero ()
	Get "fix to float zero flag. " For existing flags see here.
void	set_fx2fl_zero ()
	Set "fix to float zero flag. " For existing flags see here.
void	clr_fx2fl_zero ()
	Clear "fix to float zero flag. " For existing flags see here.
unsigned int	get_fx2fl_inex ()
	Get "fix to float inexact flag. " For existing flags see here.
void	set_fx2fl_inex ()
	Set "fix to float inexact flag. " For existing flags see here.
void	clr_fx2fl_inex ()
	Clear "fix to float inexact flag. " For existing flags see here.

Float to fixed exceptions
Floating point exceptions for datatpye converts. See also: flags.
unsigned int	get_fl2fx_hint ()
	Get "float to fix huge int flag. " For existing flags see here.
void	set_fl2fx_hint ()
	Set "float to fix huge int flag. " For existing flags see here.
void	clr_fl2fx_hint ()
	Clear "float to fix huge int flag. " For existing flags see here.
unsigned int	get_fl2fx_inv ()
	Get "float to fix invalid flag. " For existing flags see here.
void	set_fl2fx_inv ()
	Set "float to fix invalid flag. " For existing flags see here.
void	clr_fl2fx_inv ()
	Clear "float to fix invalid flag. " For existing flags see here.

Function Documentation

void clr_fl2fx_hint

(

)

Clear "float to fix huge int flag. " For existing flags see here.

void clr_fl2fx_inv

(

)

Clear "float to fix invalid flag. " For existing flags see here.

void clr_fpadd_huge

(

)

Clear "floating point addition huge flag. " For existing flags see here.

void clr_fpadd_inex

(

)

Clear "floating point addition inexact flag. " For existing flags see here.

void clr_fpadd_inf

(

)

Clear "floating point addition infinite flag. " For existing flags see here.

void clr_fpadd_inv

(

)

Clear "floating point addition invalid flag. " For existing flags see here.

void clr_fpadd_tiny

(

)

Clear "floating point addition tiny flag. " For existing flags see here.

void clr_fpadd_zero

(

)

Clear "floating point addition zero flag. " For existing flags see here.

void clr_fpmul_huge

(

)

Clear "floating point multiplication huge flag. " For existing flags see here.

void clr_fpmul_inex

(

)

Clear "floating point multiplication inexact flag. " For existing flags see here.

void clr_fpmul_inf

(

)

Clear "floating point multiplication infinite flag. " For existing flags see here.

void clr_fpmul_inv

(

)

Clear "floating point multiplication invalid flag. " For existing flags see here.

void clr_fpmul_tiny

(

)

Clear "floating point multiplication tiny flag. " For existing flags see here.

void clr_fpmul_zero

(

)

Clear "floating point multiplication zero flag. " For existing flags see here.

void clr_fpnlf_div0

(

)

Clear "non linear function division by zero flag. " For existing flags see here.

void clr_fpnlf_inex

(

)

Clear "non linear function inexact flag. " For existing flags see here.

void clr_fpnlf_inf

(

)

Clear "non linear function infinite flag. " For existing flags see here.

void clr_fpnlf_inv

(

)

Clear "non linear function invalid flag. " For existing flags see here.

void clr_fpnlf_tiny

(

)

Clear "non linear function tiny flag. " For existing flags see here.

void clr_fpnlf_zero

(

)

Clear "non linear function zero flag. " For existing flags see here.

void clr_fx2fl_inex

(

)

Clear "fix to float inexact flag. " For existing flags see here.

void clr_fx2fl_zero

(

)

Clear "fix to float zero flag. " For existing flags see here.

void clr_ms0_success

(

)

Clear "wide stream 0 success flag. ".

void clr_ms1_success

(

)

Clear "wide stream 1 success flag. ".

void clr_srs_sat

(

)

Clear "srs saturation. " For existing flags see here.

void clr_ss0_success

(

)

Clear "narrow stream 0 success flag. ".

void clr_ss0_tlast

(

)

Clear "narrow stream 0 tlast flag. ".

void clr_ss1_success

(

)

Clear "narrow stream 1 success flag. ".

void clr_ss1_tlast

(

)

Clear "narrow stream 1 tlast flag. ".

void clr_ups_sat

(

)

Clear "upshift saturation. " For existing flags see here.

void clr_wss0_tlast

(

)

Clear "wide stream 0 tlast flag. ".

void clr_wss1_tlast

(

)

Clear "wide stream 1 tlast flag. ".

unsigned int get_fl2fx_hint

(

)

Get "float to fix huge int flag. " For existing flags see here.

unsigned int get_fl2fx_inv

(

)

Get "float to fix invalid flag. " For existing flags see here.

unsigned int get_fpadd_huge

(

)

Get "floating point addition huge flag. " For existing flags see here.

unsigned int get_fpadd_inex

(

)

Get "floating point addition inexact flag. " For existing flags see here.

unsigned int get_fpadd_inf

(

)

Get "floating point addition infinite flag. " For existing flags see here.

unsigned int get_fpadd_inv

(

)

Get "floating point addition invalid flag. " For existing flags see here.

unsigned int get_fpadd_tiny

(

)

Get "floating point addition tiny flag. " For existing flags see here.

unsigned int get_fpadd_zero

(

)

Get "floating point addition zero flag. " For existing flags see here.

unsigned int get_fpmul_huge

(

)

Get "floating point multiplication huge flag. " For existing flags see here.

unsigned int get_fpmul_inex

(

)

Get "floating point multiplication inexact flag. " For existing flags see here.

unsigned int get_fpmul_inf

(

)

Get "floating point multiplication infinite flag. " For existing flags see here.

unsigned int get_fpmul_inv

(

)

Get "floating point multiplication invalid flag. " For existing flags see here.

unsigned int get_fpmul_tiny

(

)

Get "floating point multiplication tiny flag. " For existing flags see here.

unsigned int get_fpmul_zero

(

)

Get "floating point multiplication zero flag. " For existing flags see here.

unsigned int get_fpnlf_div0

(

)

Get "non linear function division by zero flag. " For existing flags see here.

unsigned int get_fpnlf_inex

(

)

Get "non linear function inexact flag. " For existing flags see here.

unsigned int get_fpnlf_inf

(

)

Get "non linear function infinite flag. " For existing flags see here.

unsigned int get_fpnlf_inv

(

)

Get "non linear function invalid flag. " For existing flags see here.

unsigned int get_fpnlf_tiny

(

)

Get "non linear function tiny flag. " For existing flags see here.

unsigned int get_fpnlf_zero

(

)

Get "non linear function zero flag. " For existing flags see here.

unsigned int get_fx2fl_inex

(

)

Get "fix to float inexact flag. " For existing flags see here.

unsigned int get_fx2fl_zero

(

)

Get "fix to float zero flag. " For existing flags see here.

unsigned int get_MC

(

unsigned int

idx

)

unsigned int get_ms0_success

(

)

Get "wide stream 0 success flag. ".

unsigned int get_ms1_success

(

)

Get "wide stream 1 success flag. ".

unsigned int get_srs_sat

(

)

Get "srs saturation. " For existing flags see here.

unsigned int get_ss0_success

(

)

Get "narrow stream 0 success flag. ".

unsigned int get_ss0_tlast

(

)

Get "narrow stream 0 tlast flag. ".

unsigned int get_ss1_success

(

)

Get "narrow stream 1 success flag. ".

unsigned int get_ss1_tlast

(

)

Get "narrow stream 1 tlast flag. ".

unsigned int get_ups_sat

(

)

Get "upshift saturation. " For existing flags see here.

unsigned int get_wss0_tlast

(

)

Get "wide stream 0 tlast flag. ".

unsigned int get_wss1_tlast

(

)

Get "wide stream 1 tlast flag. ".

void set_fl2fx_hint

(

)

Set "float to fix huge int flag. " For existing flags see here.

void set_fl2fx_inv

(

)

Set "float to fix invalid flag. " For existing flags see here.

void set_fpadd_huge

(

)

Set "floating point addition huge flag. " For existing flags see here.

void set_fpadd_inex

(

)

Set "floating point addition inexact flag. " For existing flags see here.

void set_fpadd_inf

(

)

Set "floating point addition infinite flag. " For existing flags see here.

void set_fpadd_inv

(

)

Set "floating point addition invalid flag. " For existing flags see here.

void set_fpadd_tiny

(

)

Set "floating point addition tiny flag. " For existing flags see here.

void set_fpadd_zero

(

)

Set "floating point addition zero flag. " For existing flags see here.

void set_fpmul_huge

(

)

Set "floating point multiplication huge flag. " For existing flags see here.

void set_fpmul_inex

(

)

Set "floating point multiplication inexact flag. " For existing flags see here.

void set_fpmul_inf

(

)

Set "floating point multiplication infinite flag. " For existing flags see here.

void set_fpmul_inv

(

)

Set "floating point multiplication invalid flag. " For existing flags see here.

void set_fpmul_tiny

(

)

Set "floating point multiplication tiny flag. " For existing flags see here.

void set_fpmul_zero

(

)

Set "floating point multiplication zero flag. " For existing flags see here.

void set_fpnlf_div0

(

)

Set "non linear function division by zero flag. " For existing flags see here.

void set_fpnlf_inex

(

)

Set "non linear function inexact flag. " For existing flags see here.

void set_fpnlf_inf

(

)

Set "non linear function infinite flag. " For existing flags see here.

void set_fpnlf_inv

(

)

Set "non linear function invalid flag. " For existing flags see here.

void set_fpnlf_tiny

(

)

Set "non linear function tiny flag. " For existing flags see here.

void set_fpnlf_zero

(

)

Set "non linear function zero flag. " For existing flags see here.

void set_fx2fl_inex

(

)

Set "fix to float inexact flag. " For existing flags see here.

void set_fx2fl_zero

(

)

Set "fix to float zero flag. " For existing flags see here.

void set_MC	(	unsigned int	val,
		unsigned int	idx
	)

void set_ms0_success

(

)

Set "wide stream 0 success flag. ".

void set_ms1_success

(

)

Set "wide stream 1 success flag. ".

void set_srs_sat

(

)

Set "srs saturation. " For existing flags see here.

void set_ss0_success

(

)

Set "narrow stream 0 success flag. ".

void set_ss0_tlast

(

)

Set "narrow stream 0 tlast flag. ".

void set_ss1_success

(

)

Set "narrow stream 1 success flag. ".

void set_ss1_tlast

(

)

Set "narrow stream 1 tlast flag. ".

void set_ups_sat

(

)

Set "upshift saturation. " For existing flags see here.

void set_wss0_tlast

(

)

Set "wide stream 0 tlast flag. ".

void set_wss1_tlast

(

)

Set "wide stream 1 tlast flag. ".