SLAS380F April 2004 – March 2022 MSP430FG437 , MSP430FG438 , MSP430FG439
PRODUCTION DATA
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 shows examples of the three types of instruction formats; Table 9-2 lists the address modes.
INSTRUCTION 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 |
ADDRESS MODE | S(1) | D(1) | SYNTAX | EXAMPLE | OPERATION |
---|---|---|---|---|---|
Register | ✓ | ✓ | 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 autoincrement | ✓ | MOV @Rn+,Rm | MOV @R10+,R11 | M(R10) → R11 R10 + 2→ R10 | |
Immediate | ✓ | MOV #X,TONI | MOV #45,TONI | #45 → M(TONI) |