2019-12-14 09:38:40 +11:00
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The AVR instruction set is a bit more regular than z80's, which allows us for
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simpler upcode spitting logic (simplicity which is lost when we need to take
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into account all AVR models and instruction constraints on each models). This
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file categorizes all available ops with their opcode signature. X means upcode
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bit.
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Categories are in descending order of "popularity"
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Mnemonics with "*" are a bit special.
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### 16-bit
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## Plain
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XXXX XXXX XXXX XXXX
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BREAK, CLC, CLH, CLI, CLN, CLS, CLT, CLV, CLZ, EICALL, EIJMP, ELPM*, ICALL,
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IJMP, NOP, RET, RETI, SEC, SEH, SEI, SEN, SES, SET, SEV, SEZ, SLEEP, SPM*, WDR
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## Rd(5)
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XXXX XXXd dddd XXXX
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2019-12-23 10:36:15 +11:00
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ASR, COM, DEC, ELPM*, INC, LAC, LAS, LAT, LD*, LPM*, LSL*, LSR, NEG, POP, PUSH,
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ROR, ST*, SWAP, XCH
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2019-12-14 09:38:40 +11:00
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## Rd(5) + Rr(5)
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XXXX XXrd dddd rrrr
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ADC, ADD, AND, CLR, CP, CPC, CPSE, EOR, MOV, MUL, OR, ROL*, SBC, SUB,
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TST*
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## k(7)
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XXXX XXkk kkkk kXXX
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BRCC, BRCS, BREQ, BRGE, BRHC, BRHS, BRID, BRIE, BRLO, BRLT, BRMI, BRNE, BRPL,
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BRSH, BRTC, BRTS, BRVC, BRVS
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## Rd(4) + K(8)
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XXXX KKKK dddd KKKK
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ANDI, CBR*, CPI, LDI, ORI, SBCI, SBR, SUBI
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## Rd(5) + bit
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XXXX XXXd dddd Xbbb
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BLD, BST, SBRC, SBRS
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## A(5) + bit
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XXXX XXXX AAAA Abbb
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CBI, SBI, SBIC, SBIS
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## Rd(3) + Rr(3)
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XXXX XXXX Xddd Xrrr
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FMUL, FMULS, FMULSU, MULSU
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## Rd(4) + Rr(4)
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XXXX XXXX dddd rrrr
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MOVW, MULS
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## Rd(5) + A(6)
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XXXX XAAd dddd AAAA
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IN, OUT
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## Rd(4) + k(7)
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XXXX Xkkk dddd kkkk
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LDS*, STS*
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## Rd(2) + K
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XXXX XXXX KKdd KKKK
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ADIW, SBIW
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## Rd(4)
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XXXX XXXX dddd XXXX
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SER
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## K(4)
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XXXX XXXX KKKK XXXX
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DES
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## k(12)
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XXXX kkkk kkkk kkkk
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RCALL, RJMP
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## SREG
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XXXX XXXX Xsss XXXX
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BCLR, BSET
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## SREG + k(7)
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XXXX XXkk kkkk ksss
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BRBC, BRBS
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### 32-bit
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## k(22)
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XXXX XXXk kkkk XXXk
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kkkk kkkk kkkk kkkk
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CALL, JMP
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## Rd(5) + k(16)
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XXXX XXXd dddd XXXX
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kkkk kkkk kkkk kkkk
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LDS*, STS*
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