MSP430F6638IPZ datasheet(60/133 Pages) TI

60 / 133 page

9.3 Instruction Set

The instruction set consists of the original 51 instructions with three formats and seven address modes and

additional instructions for the expanded address range. Each instruction can operate on word and byte data.

Table 9-1 lists examples of the three types of instruction formats; Table 9-2 lists the address modes.

Table 9-1. Instruction Word Formats

INSTRUCTION WORD FORMAT

EXAMPLE

OPERATION

Dual operands, source-destination

ADD R4,R5

R4 + R5 → R5

Single operands, destination only

CALL R8

PC → (TOS), R8 → PC

Relative jump, un/conditional

JNE

Jump-on-equal bit = 0

Table 9-2. Address Mode Descriptions

ADDRESS MODE

S(1)

D(1)

SYNTAX

EXAMPLE

OPERATION

MOV Rs,Rd

MOV R10,R11

R10 → R11

Indexed

MOV X(Rn),Y(Rm)

MOV 2(R5),6(R6)

M(2+R5) → M(6+R6)

Symbolic (PC relative)

MOV EDE,TONI

M(EDE) → M(TONI)

Absolute

MOV &MEM, &TCDAT

M(MEM) → M(TCDAT)

Indirect

MOV @Rn,Y(Rm)

MOV @R10,Tab(R6)

M(R10) → M(Tab+R6)

Indirect auto-increment

MOV @Rn+,Rm

MOV @R10+,R11

M(R10) → R11

R10 + 2 → R10

Immediate

MOV #X,TONI

MOV #45,TONI

#45 → M(TONI)

(1)

S = source, D = destination

MSP430F6638, MSP430F6637, MSP430F6636, MSP430F6635, MSP430F6634

MSP430F6633, MSP430F6632, MSP430F6631, MSP430F6630

SLAS566G – JUNE 2010 – REVISED SEPTEMBER 2020

www.ti.com

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MSP430F6638IPZ Datasheet(PDF) 60 Page - Texas Instruments

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