Computer Hardware User's Guide

ManualsBrandsTexas Instruments ManualsNetwork CardTMS320C3x

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Instruction Set Summary

13-16

Table 13–8. Instruction Set Summary (Continued)

Mnemonic OperationDescription

SUBI Subtract integers Dreg –

src

→ Dreg

SUBI3 Subtract integers (3-operand)

src

1 –

src

2 → Dreg

SUBRB Subtract reverse integer with borrow

src

– Dreg – C → Dreg

SUBRF Subtract reverse floating-point value

src

– R

→ R

SUBRI Subtract reverse integer

src

– Dreg → Dreg

SWI Software interrupt Perform emulator interrupt sequence

TRAP

cond

Trap conditionally If

cond

= true or missing:

Next PC

→ * ++ SP

Trap vector N

→ PC

→ ST (GIE)

Else, continue

TSTB Test bit fields Dreg AND

src

TSTB3 Test bit fields (3-operand)

src

1 AND

src

XOR Bitwise-exclusive OR Dreg XOR

src

→ Dreg

XOR3 Bitwise-exclusive OR (3-operand)

src

1 XOR

src

2 → Dreg

Legend: AR

auxiliary register

(AR7–AR0) RE repeat interrupt register

C carry bit RM repeat mode bit

src

conditional-branch addressing modes R

count

shift value (general addressing modes) RS repeat start register

cond

condition code SP stack pointer

Daddr destination memory address Sreg register address (any register)

Dreg register address (any register) ST status register

GIE global interrupt enable register

src

general addressing modes

N any trap vector 0–27

src

1 3-operand addressing modes

PC program counter

src

2 3-operand addressing modes

RC repeat counter register TOS top of stack