← smctl → spc

CADR – SOURCE, DEST, OP DECODE [source]

3E0574S084D1074S103D03HEX INV74S043D05ENBSEL0SEL102134 WAYDECODE74S1393D05ENBSEL0SEL102134 WAYDECODE74S1393D2174S083D0274S003E0974S323E0974S323D0274S003D12CE0CE1CE2SEL2SEL0SEL1012345673-8 DECODE 74S1383D11CE0CE1CE2SEL2SEL0SEL1012345673-8 DECODE 74S1383D23CE0CE1CE2SEL2SEL0SEL1012345673-8 DECODE 74S1383D22CE0CE1CE2SEL2SEL0SEL1012345673-8 DECODE 74S1383D04ENBSEL0SEL102134 WAYDECODE74S1393D0274S00IWRITED LDESTIMOD0 L5≡4≡6≡Instruction Modified.IMODIDEBUGDestination Instruction Modification (High Part). OA-REG-HIDESTIMOD1SPECALUInstruction Register bit 8: JUMP: P-bit, CallIR8Instruction Register contains an ALU instruction (IR44-IR43).IRALUNCNCDIVMULSPECALUIR3IR4Instruction Register contains an ALU instruction (IR44-IR43).IRALUInstruction Register contains a JUMP instruction (IR44-IR43).IRJUMPInstruction Register contains a DISPATCH instruction (IR44-IR43).IRDISPNCInstruction Register bit 25: DISPATCH: L-PC flag. Alter return address pushed on SPC by the CALL transfer type, if the N bit is set, to be the address of this instruction rather than the next instruction.IR25IR22IR22Instruction Register bit 25: DISPATCH: L-PC flag. Alter return address pushed on SPC by the CALL transfer type, if the N bit is set, to be the address of this instruction rather than the next instruction.IR25NCInstruction Register contains a DISPATCH instruction (IR44-IR43).IRDISPInstruction Register contains a JUMP instruction (IR44-IR43).IRJUMPInstruction Register contains an ALU instruction (IR44-IR43).IRALUMiscellaneous Function bit 3. Decoded from IR10-IR11.FUNCT3Miscellaneous Function bit 2. Decoded from IR10-IR11. DISPATCH: Write dispatch memory.FUNCT2Miscellaneous Function bit 1. Decoded from IR10-IR11.FUNCT1Miscellaneous Function bit 0. Decoded from IR10-IR11.FUNCT0Previous instruction, Spy interface or a Trap NOPed the current instruction.NOPIR10IR11Instruction Register contains a BYTE instruction (IR44-IR43).IRBYTEInstruction Register contains a DISPATCH instruction (IR44-IR43).IRDISPInstruction Register contains a JUMP instruction (IR44-IR43).IRJUMPInstruction Register contains an ALU instruction (IR44-IR43).IRALUPrevious instruction, Spy interface or a Trap NOPed the current instruction.NOPIR43IR44Destination M Memory. True for ALU or BYTE instructions that have IR25 set.DESTMInstruction Register bit 25: DISPATCH: L-PC flag. Alter return address pushed on SPC by the CALL transfer type, if the N bit is set, to be the address of this instruction rather than the next instruction.IR25There is a Destination. True for ALU and BYTE instructions.DESTThere is a Destination. True for ALU and BYTE instructions.DESTInstruction Register contains a BYTE instruction (IR44-IR43).IRBYTEInstruction Register contains an ALU instruction (IR44-IR43).IRALUDESTMDRIR22Destination (Main) Memory. The highest bit of the functional destination is set, destination is OA register, VMA or MD.DESTMEMDESTVMAIR22Destination (Main) Memory. The highest bit of the functional destination is set, destination is OA register, VMA or MD.DESTMEMDestination (Main) Memory. The highest bit of the functional destination is set, destination is OA register, VMA or MD.DESTMEMIR23Destination M Memory. True for ALU or BYTE instructions that have IR25 set.DESTMIR22Destination Instruction Modification (High Part). OA-REG-HIDESTIMOD1Destination Instruction Modification (Low Part). OA-REG-LOWDESTIMOD0DESTSPCDESTPDLPDESTPDLXDESTPDL(X)DESTPDL(P)DESTPDLTOPNCNCNCNCNCDESTINTCTLDESTLCNCDestination M Memory. True for ALU or BYTE instructions that have IR25 set.DESTMIR23IR22IR19IR20IR21NCNCNCSRCSPCPOPSRCLCSRCMDSRCMAPSRCVMASRCQSRCOPCSRCPDLTOPSRCPDLPOPSRCPDLIDXSRCPDLPTRSRCSPCSource Dispatch ConstantSRCDCIR26IR27IR28GNDIR29HI5IR29IR316≡3≡4≡5≡1≡3≡5≡9≡11≡13≡2≡4≡6≡8≡10≡12≡15:14:13:12:11:10:9:1:2:3:4:5:6:7:12≡13≡11≡6≡4≡5≡5≡4≡6≡9≡10≡8≡9≡10≡8≡15:14:13:12:11:10:9:7:3:2:1:6:5:4:15:14:13:12:11:10:9:7:3:2:1:6:5:4:15:14:13:12:11:10:9:7:3:2:1:6:5:4:15:14:13:12:11:10:9:7:3:2:1:6:5:4:1:2:3:4:5:6:7:12≡13≡11≡

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