Texas Instruments TMS320C67X/C67X+ DSP manual Intspu, INTDP, INTDPU, Intsp

INTSPU Convert Unsigned Integer to Single-Precision Floating-Point Value

				Convert Unsigned Integer to Single-Precision Floating-Point Value
INTSPU
Syntax					INTSPU (.unit) src2, dst
					.unit = .L1 or .L2
Compatibility					C67x and C67x+ CPU
Opcode
31	29	28	27	23		22	18	17	13	12	11	5	4	3	2	1	0

creg

z

dst

src2

0 0 0 0 0 x 1 0 0 1 0 0 1

1 1 0 s

p

3	1	5		5	1	1	1
			Opcode map field used...		For operand type...	Unit
			src2		xuint	.L1, .L2
			dst		sp
Description		The unsigned integer value in src2 is converted to single-precision value and
		placed in dst.
Execution		if (cond)		sp(src2) → dst
		else		nop

Pipeline

Instruction Type

Delay Slots

Functional Unit

Latency

See Also

Example

The only configuration bit that can be set is the INEX bit and only if the mantissa is rounded.

Pipeline	E1	E2	E3	E4
Stage
Read	src2
Written				dst
Unit in use	.L

4-cycle

3

1

INTDP, INTDPU, INTSP

INTSPU .L1X B1,A2

	Before instruction			4 cycles after instruction
B1
	FFFF FFDEh	4294967262	B1	C020	0000h	4294967262
A2	xxxx xxxxh		A2	4F80	0000h	4.2949673 E09

3-122 Instruction Set SPRU733