tm1300 NXP Semiconductors, tm1300 Datasheet - Page 388

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

TM1300 Data Book
ijmpt
SYNTAX
FUNCTION
DESCRIPTION
serviced. If no interrupts or exceptions are pending and the LSB of r src1 is 1, the DPC, PC, and SPC registers are set
equal to r src2 . If an exception or interrupt is pending and the LSB of r src1 is 1, DPC is set equal to r src2 and a service
routine is invoked, where exceptions have priority over interrupts. If the LSB of r src1 is 0, program execution continues
with the next sequential instruction.
condition to the jump. If the LSB of r guard is 1, the instruction executes as previously described; otherwise, the jump
will not be taken and PC, DPC, and SPC are not modified regardless of the value of r src1 .
EXAMPLES
A-102
r50 = 1, r70 = 0x330
r20 = 0, r70 = 0x330
r30 = 0, r50 = 1, r60 = 0x8000
r40 = 1, r50 = 1, r60 = 0x8000
The
The
[ IF r guard ] ijmpt r src1 r src2
if r guard then {
}
if (r src1 & 1) = 1 then {
}
ijmpt
ijmpt
DPC
if exception is pending then
elseif interrupt is pending then
else
service exception
service interrupts
PC, SPC
Initial Values
r src2
operation conditionally changes the program flow and allows pending interrupts or exceptions to be
operation optionally takes a guard, specified in r guard . If a guard is present, its LSB adds another
r src2
PRODUCT SPECIFICATION
ijmpt r50 r70
ijmpt r20 r70
IF r30 ijmpt r50 r60
IF r40 ijmpt r50 r60
Operation
Interruptible indirect jump on true
program execution continues at 0x330 after
first servicing pending interrupts
since r20 is false, program execution contin-
ues with next sequential instruction
since guard is false, program execution con-
tinues with next sequential instruction
program execution continues at 0x8000 after
first servicing pending interrupts
jmpf jmpt jmpi ijmpf ijmpi
Function unit
Operation code
Number of operands
Modifier
Modifier range
Delay
Issue slots
Philips Semiconductors
ATTRIBUTES
SEE ALSO
Result
branch
2, 3, 4
177
no
—
2
3