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13 legend – Texas Instruments MSP50C6xx User Manual

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Legend

4-70

4.13 Legend

All instructions of the MSP50P614/MSP50C614 use the following syntax:

name [dest] [, src] [, src1] [, mod]

name

Name of the instruction. Instruction names are shown in bold letter through out the text.

dest

Destination of the data to be stored after the execution of the instruction. Optional for some instructions or
not used. Destination is also used as both source and destination for some instructions.

src

Source of the first data. Optional for some instructions or not used.

src1

Source of the second data. Some instructions use a second data source. Optional for some instructions
or not used.

mod

Post modification of a register. This can be either next A or Rmod and will be specified in the instruction.

The following table describes the meanings of the symbols used in the
instruction set descriptions:

Bold type means it must be typed exactly as shown.
italics type means it is a variable.
[ ] square brackets enclose optional arguments.

Operands

0

dma6

63

0

dma16

65535

dma16

639 for MSP50P614/MSP50C614

0

imm5

31

0

imm16

65535

0

offset6

63

0

offset7

127

0

offset16

65535

0

pma8

255

0

pma16

65535

pma16

32767 for MSP50P614/MSP50C614

0

port4

15

0

port6

63

Symbol

Meaning

!

Invert the bit of the source. Used with flag addressing only.

An

Accumulator selector where n = 0...3. An is the accumulator pointed by APn.

An~

Offset accumulator selector where n = 0...3. An is the accumulator pointed by APn+16; APn wraps
after 31.