Intsp (Convert Signed Integer To Single-Precision Floating-Point Value) - Texas Instruments TMS320C67X Reference Manual

INTSP
Syntax
Compatibility
Opcode
31 29 28 27
creg z dst
3 1 5
Description
Execution
Pipeline
Instruction Type
Delay Slots
Functional Unit
Latency
See Also
Example
SPRU733
Convert Signed Integer to Single-Precision Floating-Point Value
Convert Signed Integer to Single-Precision Floating-Point Value
INTSP (.unit) src2, dst
.unit = .L1 or .L2
C67x and C67x+ CPU
23 22 18
src2
5
Opcode map field used...
src2
dst
The signed integer value in src2 is converted to single-precision value and
placed in dst.
if (cond) sp(src2) → dst
else nop
The only configuration bit that can be set is the INEX bit and only if the mantissa
is rounded.
Pipeline
E1
Stage
Read src2
Written
Unit in use .L
4-cycle
3
1
INTDP, INTDPU, INTSPU
INTSP .L1 A1,A2
Before instruction
A1 1965 1127h
426053927
A2 xxxx xxxxh
17 13 12 11
0 0 0 0 0 x 1
1
For operand type...
xsint
sp
E2
4 cycles after instruction
A1 1965 1127h
A2 4DCB 2889h
INTSP
5 4 3
0 0 1 0 1 0 1 1 0 s p
Unit
.L1, .L2
E3 E4
dst
426053927
4.2605393 E08
Instruction Set
2 1 0
1 1
3-121