Texas Instruments TMS320C67X/C67X+ DSP - Manual (Page 172)

EXT Extract and Sign-Extend a Bit Field
3-112 Instruction Set SPRU733
Instruction Type Single-cycle
Delay Slots 0
See Also EXTU
Example 1 EXT .S1 A1,10,19,A2
Before instruction 1 cycle after instruction
A1 07A4 3F2Ah A1 07A4 3F2Ah
A2 xxxx xxxxh A2 FFFF F21Fh
Example 2 EXT .S1 A1,A2,A3
Before instruction 1 cycle after instruction
A1 03B6 E7D5h A1 03B6 E7D5h
A2 0000 0073h A2 0000 0073h
A3 xxxx xxxxh A3 0000 03B6h