Motorola dsp assembler Reference Manual
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Device-dependent Information DSP56100 Information MOTOROLA DSP ASSEMBLER REFERENCE MANUAL F-17 F.4.1.3 Bit Manipulation Instructions The DSP56100 instructions used for bit manipulation are: BFCHG — Test bit field and change BFCLR — Clear bit field BFSET — Set bit field BFTSTH — Test bit field high BFTSTL — Test bit field low F.4.1.4 Loop Instructions The DSP56100 instructions used for loop operations are: BRKcc — Exit hardware loop conditionally DO — Start hardware loop DO FOREVER — Start infinite loop ENDDO — Exit from hardware loop F.4.1.5 Move Instructions The DSP56100 instructions used for move operations are: LEA — Load effective address MOVE — Move data* MOVEC — Move control register MOVEI — Move immediate short MOVEM — Move program memory MOVEP — Move peripheral data MOVES — Move absolute short *Instruction allows parallel data move. Device-dependent Information DSP56100 Information F-18 DSP ASSEMBLER REFERENCE MANUAL MOTOROLA F.4.1.6 Program Control Instructions The DSP56100 instructions used for program control are: Bcc — Branch conditionally BRA — Branch always BScc — Branch to subroutine conditionally BSR — Branch to subroutine DEBUG — Enter debug mode DEBUGcc — Enter debug mode conditionally Jcc — Jump conditionally JMP — Jump JScc — Jump to subroutine conditionally JSR — Jump to subroutine NOP — No operation REP — Repeat next instruction REPcc — Repeat next instruction conditionally RESET — Reset on-chip peripheral devices RTI — Return from interrupt RTS — Return from subroutine STOP — Stop processing (low power standby) SWI — Software interrupt WAIT — Wait for interrupt (low power standby) F.4.2 Register Names and Usage The following DSP56100 register names, in either upper or lower case, cannot be used as symbol names in an assembly language source file: X A A2 X0 A0 X1 A1 Y B B2 Y0 B0 Y1 B1 R0 N0 M0 R1 N1 M1 R2 N2 M2 R3 N3 M3 MR CCR SR LC LA SSH SSL OMR Device-dependent Information DSP56100 Information MOTOROLA DSP ASSEMBLER REFERENCE MANUAL F-19 The following DSP56100 registers are used by the Assembler in structured control state- ment processing (Chapter 7): A X0 Y0 R0 F.4.3 Condition Code Mnemonics Following are the DSP56100 condition code mnemonics which correspond to the condi- tional instructions based on the CCR condition codes. These tests may be used in an op- erand comparison expression within a structured control statement (Chapter 7). <CC> — carry clear <CS> — carry set <EC> — extension clear <EQ> — equal <ES> — extension set <GE> — greater or equal <GT> — greater than <HS> — higher or same <LC> — limit clear <LE> — less or equal <LO> — lower <LS> — limit set <LT> — less than <MI> — minus <NE> — not equal <NN> — not normalized <NR> — normalized <PL> — plus Device-dependent Information DSP56300 Information F-20 DSP ASSEMBLER REFERENCE MANUAL MOTOROLA F.5 DSP56300 INFORMATION The Motorola DSP56300 refers to a family of high-speed, low power programmable CMOS processors. The DSP56300 supports 24-bit signed fixed-point fractional arith- metic. F.5.1 Instruction Set Summary DSP56300 instructions can be grouped by function into six types: 1. Arithmetic instructions 2. Logical instructions 3. Bit manipulation instructions 4. Loop instructions 5. Move instructions 6. Program control instructions Device-dependent Information DSP56300 Information MOTOROLA DSP ASSEMBLER REFERENCE MANUAL F-21 F.5.1.1 Arithmetic Instructions The DSP56300 instructions used for arithmetic operations are: ABS — Absolute value* ADC — Add long with carry* ADD — Add* ADDL — Shift left then add* ADDR — Shift right then add* ASL — Arithmetic shift accumulator left* ASR — Arithmetic shift accumulator right* CLR — Clear accumulator* CMP — Compare* CMPM — Compare magnitude* CMPU — Compare unsigned DEC — Decrement accumulator DIV — Divide iteration DMAC — Double precision multiply-accumulate INC — Increment accumulator MAC — Signed multiply-accumulate* MACI — Immediate signed multiply-accumulate MACR — Signed multiply-accumulate and round* MACRI — Immediate signed multiply-accumulate and round MACSU — Signed/unsigned multiply-accumulate MACUU — Unsigned multiply-accumulate MPY — Signed multiply* MPYI — Immediate signed multiply MPYR — Signed multiply and round* MPYRI — Immediate signed multiply and round MPYSU — Signed/unsigned multiply MPYUU — Unsigned multiply NEG — Negate accumulator* NORM — Normalize accumulator iteration NORMF — Fast normalize accumulator RND — Round accumulator* SBC — Subtract long with carry* SUB — Subtract* SUBL — Shift left then subtract* SUBR — Shift right then subtract* *Instruction allows parallel data move. Yüklə 4,8 Kb. Dostları ilə paylaş:
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