![](http://datasheet.mmic.net.cn/260000/TMS320F240PQA_datasheet_15975211/TMS320F240PQA_58.png)
TMS320C240, TMS320F240
DSP CONTROLLERS
SPRS042D – OCTOBER 1996 – REVISED NOVEMBER 1998
58
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
instruction set summary (continued)
Table 14. TMS320x240 Instruction Set Summary (Continued)
’x240
DESCRIPTION
WORDS/
CYCLES
OPCODE
MNEMONIC
MSB
LSB
SUBB
Subtract from accumulator with borrow
1/1
0110
0100
IADD
RESS
SUBC
Conditional subtract
1/1
0000
1010
IADD
RESS
SUBS
Subtract from low accumulator with sign extension suppressed
1/1
0110
0110
IADD
RESS
SUBT
Subtract from accumulator with shift specified by TREG
1/1
0110
0111
IADD
RESS
TBLR
Table read
1/3
1010
0110
IADD
RESS
TBLW
Table write
1/3
1010
0111
IADD
RESS
TRAP
Software interrupt
1/4
1011
1110
0101
0001
Exclusive-OR with accumulator
1/1
0110
1100
IADD
RESS
Exclusive OR immediate with accumulator with shift
Exclusive-OR immediate with accumulator with shift
2/2
1011
1111
1101
SHFT
XOR
16-Bit Constant
Exclusive OR immediate with accumulator with shift of 16
Exclusive-OR immediate with accumulator with shift of 16
2/2
1011
1110
1000
0011
16-Bit Constant
ZALR
Zero low accumulator and load high accumulator with rounding
1/1
0110
1000
IADD
RESS
development support
Texas Instruments offers an extensive line of development tools for the ’x240 generation of DSPs, including tools
to evaluate the performance of the processors, generate code, develop algorithm implementations, and fully
integrate and debug software and hardware modules.
The following products support development of ’x240-based applications:
Software Development Tools:
Assembler/Linker
Simulator
Optimizing ANSI C compiler
Application algorithms
C/Assembly debugger and code profiler
Hardware Development Tools:
Emulator XDS510 (supports ’x240 multiprocessor system debug)
The TMS320 Family Development Support Reference Guide(literature number SPRU011) contains
information about development-support products for all TMS320 family member devices, including
documentation. Refer to this document for further information about TMS320 documentation or any other
TMS320 support products from Texas Instruments. An additional document, the TMS320 Third Party Support
Reference Guide (literature number SPRU052), contains information about TMS320-related products from
other companies in the industry. To receive copies of TMS320 literature, contact the Literature Response Center
at 800/477-8924.
See Table 15 and Table 16 for complete listings of development-support tools for the ’x240. For information on
pricing and availability, contact the nearest TI field sales office or authorized distributor.