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Os motores de busca de Datasheet de Componentes eletrônicos |
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Os motores de busca de Datasheet de Componentes eletrônicos |
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COP8SCR9KMT7 Folha de dados(PDF) 67 Page - National Semiconductor (TI) |
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COP8SCR9KMT7 Folha de dados(HTML) 67 Page - National Semiconductor (TI) |
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67 / 80 page  19.0 Instruction Set (Continued) 19.5 REGISTER AND SYMBOL DEFINITION The following abbreviations represent the nomenclature used in the instruction description and the COP8 cross- assembler. Registers A 8-Bit Accumulator Register B 8-Bit Address Register X 8-Bit Address Register S 8-Bit Segment Register SP 8-Bit Stack Pointer Register PC 15-Bit Program Counter Register PU Upper 7 Bits of PC PL Lower 8 Bits of PC C 1 Bit of PSW Register for Carry HC 1 Bit of PSW Register for Half Carry GIE 1 Bit of PSW Register for Global Interrupt Enable Registers VU Interrupt Vector Upper Byte VL Interrupt Vector Lower Byte Symbols [B] Memory Indirectly Addressed by B Register [X] Memory Indirectly Addressed by X Register MD Direct Addressed Memory Mem Direct Addressed Memory or [B] Meml Direct Addressed Memory or [B] or Immediate Data Imm 8-Bit Immediate Data Reg Register Memory: Addresses F0 to FF (Includes B, X and SP) Bit Bit Number (0 to 7) ← Loaded with ↔ Exchanged with 19.6 INSTRUCTION SET SUMMARY ADD A,Meml ADD A ←A + Meml ADC A,Meml ADD with Carry A ←A + Meml+C,C←Carry, HC ←Half Carry SUBC A,Meml Subtract with Carry A ←A − MemI+C,C←Carry, HC ←Half Carry AND A,Meml Logical AND A ←A and Meml ANDSZ A,Imm Logical AND Immed., Skip if Zero Skip next if (A and Imm) = 0 OR A,Meml Logical OR A ←A or Meml XOR A,Meml Logical EXclusive OR A ←A xor Meml IFEQ MD,Imm IF EQual Compare MD and Imm, Do next if MD = Imm IFEQ A,Meml IF EQual Compare A and Meml, Do next if A = Meml IFNE A,Meml IF Not Equal Compare A and Meml, Do next if A ≠ Meml IFGT A,Meml IF Greater Than Compare A and Meml, Do next if A > Meml IFBNE # If B Not Equal Do next if lower 4 bits of B ≠ Imm DRSZ Reg Decrement Reg., Skip if Zero Reg ←Reg − 1, Skip if Reg = 0 SBIT #,Mem Set BIT 1 to bit, Mem (bit = 0 to 7 immediate) RBIT #,Mem Reset BIT 0 to bit, Mem IFBIT #,Mem IF BIT If bit #,A or Mem is true do next instruction RPND Reset PeNDing Flag Reset Software Interrupt Pending Flag X A,Mem EXchange A with Memory A ↔Mem X A,[X] EXchange A with Memory [X] A ↔[X] LD A,Meml LoaD A with Memory A ←Meml LD A,[X] LoaD A with Memory [X] A ←[X] LD B,Imm LoaD B with Immed. B ←Imm LD Mem,Imm LoaD Memory Immed. Mem ←Imm LD Reg,Imm LoaD Register Memory Immed. Reg ←Imm XA, [B±] EXchange A with Memory [B] A ↔[B], (B←B±1) XA, [X±] EXchange A with Memory [X] A ↔[X], (X←X±1) LD A, [B±] LoaD A with Memory [B] A ←[B], (B←B±1) LD A, [X±] LoaD A with Memory [X] A ←[X], (X←X±1) LD [B±],Imm LoaD Memory [B] Immed. [B] ←Imm, (B←B±1) CLR A CLeaR A A ←0 www.national.com 67 |
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