tm1300 NXP Semiconductors, tm1300 Datasheet - Page 304

• Manufacturer Part Number: tm1300
• Description: Tm-1300 Media Processor
• Manufacturer: NXP Semiconductors

TM1300 Data Book
curcycles
SYNTAX
FUNCTION
DESCRIPTION
curcycles
destination register, r dest .. The master CCCOUNT increments on all cycles (processor-stall and non-stall) if
PCSW.CS = 1; otherwise, the counter increments only on non-stall cycles.
modification of the destination register. If the LSB of r guard is 1, r dest is written; otherwise, r dest is not changed.
EXAMPLES
A-18
CCCOUNT_HR = 0xabcdefff12345678
r10 = 0, CCCOUNT_HR = 0xabcdefff12345678
r20 = 1, CCCOUNT_HR = 0xabcdefff12345678
Refer to
The
[ IF r guard ] curcycles
if r guard then
r dest
curcycles
Section 3.1.6, “CCCOUNT—Clock Cycle Counter”
CCCOUNT<31:0>
operation copies the current low 32 bits of the master Clock Cycle Counter (CCCOUNT) to the
Initial Values
operation optionally takes a guard, specified in r guard . If a guard is present, its LSB controls the
PRODUCT SPECIFICATION
r dest
curcycles
IF r10 curcycles
IF r20 curcycles
Read current clock cycle counter, least-
Operation
for a description of the CCCOUNT operation. The
r60
r100
r70
Function unit
Operation code
Number of operands
Modifier
Modifier range
Latency
Issue slots
cycles hicycles writepcsw
r30
no change, since guard is false
r100
Philips Semiconductors
0x12345678
0x12345678
significant word
ATTRIBUTES
SEE ALSO
Result
fcomp
162
No
—
0
1
3