Texas Instruments TMS320C67X/C67X+ DSP - Manual (Page 286)

SPDP Convert Single-Precision Floating-Point Value to Double-Precision Floating-Point Value
3-226 Instruction Set SPRU733
Convert Single-Precision Floating-Point Value to Double-Precision
Floating-Point Value
SPDP
Syntax SPDP (.unit) src2, dst
.unit = .S1 or .S2
Compatibility C67x and C67x+ CPU
Opcode
31 29 28 27 23 22 18 17 13 12 11 6 5 4 3 2 1 0
creg z dst src2 0 0 0 0 0 x 0 0 0 0 1 0 1 0 0 0 s p
3 1 5 5 1 1 1
Opcode map field used... For operand type... Unit
src2
dst xsp
dp .S1, .S2
Description The single-precision value in src2 is converted to a double-precision value and
placed in dst.
Execution if (cond) dp(src2) → dst
else nop
Notes:
1) If src2 is SNaN, NaN_out is placed in dst and the INVAL and NAN2 bits
are set.
2) If src2 is QNaN, NaN_out is placed in dst and the NAN2 bit is set.
3) If src2 is a signed denormalized number, signed 0 is placed in dst and
the INEX and DEN2 bits are set.
4) If src2 is signed infinity, INFO bit is set.
5) No overflow or underflow can occur.