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CONS – SHIFT/MASK CONTROL [smctl]

2D1574S32SH3 and -SH4 aregenerated on LCC2E1474S022E1474S022E104 BIT ADD74S283COAS3210B3B2B1B0CI2E254 BIT ADD74S283COAS3210B3B2B1B0CI2D2074S022E1974S022E1974S022E1974S022E3074S022E3074S022D2074S022D2074S022D2074S022E1474S022E1474S022E1974S02S4NCNCNCNCNCNCNCNCNCNCSRS3BS2BSH3Instruction Register bit 2: ALU: Carry this bit into the low end of the ALU.IR2MSKL3CRYGNDMSKR4Instruction Register bit 9: JUMP: R-bit, ReturnIR9MSKL4MSKL3MSKL2MSKL1MSKL0Instruction Register bit 8: JUMP: P-bit, CallIR8Instruction Register bit 7: JUMP: N-Bit, NOPIR7Instruction Register bit 6: JUMP: Invert ConditionIR6Instruction Register bit 5: JUMP: If low, rotation count for M source. If high, condition number.IR5MSKR3MSKR2MSKR1MSKR0SH4SH3Instruction Register bit 2: ALU: Carry this bit into the low end of the ALU.IR2Instruction Register bit 1: ALU: Q control. 0 Do nothing; 1 Shift Q left, shifting in the inverse of the sign of the ALU output (ALU31); 2 shift Q right, shifting in the low bit of the ALU output (ALU0); 3 Load Q from ALU outputIR1IR0S4S3AS2AS1S0Instruction Register contains a BYTE instruction (IR44-IR43).IRBYTEOutput Bus Control. With IR13. 1 ALU; 2 ALU shifted right by one bit, with the correct sign shifted in; 3 ALU shifted left by one bit, shifting in Q31 from the right.IR12MROutput Bus Control. With IR12. 1 ALU; 2 ALU shifted right by one bit, with the correct sign shifted in; 3 ALU shifted left by one bit, shifting in Q31 from the right.IR13Instruction Register contains a BYTE instruction (IR44-IR43).IRBYTEMSKR0MSKR1MSKR2MSKR3MSKR4IR0Instruction Register bit 1: ALU: Q control. 0 Do nothing; 1 Shift Q left, shifting in the inverse of the sign of the ALU output (ALU31); 2 shift Q right, shifting in the low bit of the ALU output (ALU0); 3 Load Q from ALU outputIR1Instruction Register bit 2: ALU: Carry this bit into the low end of the ALU.IR2SH3SH42≡1≡3≡13≡12≡11≡4≡5≡6≡9:10:13:1:4:5:3:14:12:11:15:2:6:7:9:10:13:1:4:5:3:14:12:11:15:2:6:7:3≡2≡1≡4≡5≡6≡10≡9≡8≡13≡12≡11≡1≡2≡3≡4≡5≡6≡6≡5≡4≡10≡9≡8≡13≡12≡11≡10≡9≡8≡1≡2≡3≡1≡2≡3≡

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