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COP884CF Datasheet(PDF) 35 Page - National Semiconductor (TI) |
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COP884CF Datasheet(HTML) 35 Page - National Semiconductor (TI) |
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35 / 44 page  Instruction Set (Continued) INSTRUCTION SET 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 ← AMeml+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 in 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 ← ±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 INC A INCrement A A← A+1 DEC A DECrementA A ← A−1 LAID Load A InDirect from ROM A ← ROM (PU,A) DCOR A Decimal CORrect A A ← BCD correction of A (follows ADC, SUBC) RRC A Rotate A Right thru C C → A7 →…→ A0 → C RLC A Rotate A Left thru C C ← A7 ←… ← A0 ← C SWAP A SWAP nibbles of A A7…A4 ↔ A3…A0 SC Set C C ← 1, HC ← 1 RC Reset C C ← 0, HC ← 0 IFC IF C IF C is true, do next instruction IFNC IF Not C If C is not true, do next instruction POP A POP the stack into A SP ← SP+1,A ← [SP] PUSH A PUSH A onto the stack [SP] ← A, SP ← SP−1 VIS Vector to Interrupt Service Routine PU ← [VU], PL ← [VL] JMPL Addr. Jump absolute Long PC ← ii (ii = 15 bits, 0 to 32k) JMP Addr. Jump absolute PC9…0 ← i(i = 12 bits) JP Disp. Jump relative short PC ← PC+r(ris−31 to +32, except 1) www.national.com 35 |
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