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----------------------------------------------------------------
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| Digital Equipment Corporation |
| |
| JJJJJJJ 1 1 |
| J 11 11 |
| J 1 1 |
| J XXX 1 1 |
| J 1 1 |
| J J 1 1 |
| JJJ 111 111 |
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| J-11 MICROPROCESSOR Instruction Set Summary |
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| _________ _________ |
| | \__/ | |
| --> TEST1 -|1 60|- DAL6 <--> |
| <-- AIO0 -|2 59|- DAL7 <--> |
| <-- AIO1 -|3 58|- DAL8 <--> |
| <-- AIO2 -|4 57|- DAL0 <--> |
| <-- AIO3 -|5 ____________ 56|- DAL9 <--> |
| --> PWRF -|6 | | 55|- DAL10 <--> |
| --> FPE -|7 |Control chip| 54|- DAL11 <--> |
| --> EVENT -|8 |____________| 53|- DAL12 <--> |
| --> HALT -|9 52|- DAL13 <--> |
| --> IRQ0 -|10 51|- DAL14 <--> |
| --> IRQ1 -|11 50|- DAL15 <--> |
| --> IRQ2 -|12 49|- DAL1 <--> |
| --> IRQ3 -|13 48|- DAL2 <--> |
| --> PARITY -|14 47|- DAL3 <--> |
| GND -|15 DCJ11 46|- Vcc |
| Vcc -|16 45|- GND |
| <-- BS0 -|17 44|- DAL4 <--> |
| <-- BS1 -|18 43|- DAL5 <--> |
| <-- MAP -|19 42|- DV <-- |
| <--> ABORT -|20 41|- BUFCTL --> |
| <-- DAL21 -|21 40|- ALE --> |
| <-- DAL20 -|22 39|- STRB --> |
| <-- DAL19 -|23 ____________ 38|- SCTL --> |
| <-- DAL18 -|24 | | 37|- XTAL0 <--> |
| <-- DAL17 -|25 | Data chip | 36|- XTAL1 <--> |
| <-- DAL16 -|26 |____________| 35|- CLK --> |
| --> DMR -|27 34|- CLK2 --> |
| --> MISS -|28 33|- INIT <-- |
| <-- PRDC -|29 32|- CONT <-- |
| NOT USED -|30 31|- TEST2 <-- |
| |______________________| |
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|Written by Jonathan Bowen |
| Programming Research Group |
| Oxford University Computing Laboratory |
| 8-11 Keble Road |
| Oxford OX1 3QD |
| England |
| |
| Tel +44-865-273840 |
| |
|Created May 1983 |
|Updated April 1985 |
|Issue 1.1 Copyright (C) J.P.Bowen 1985|
----------------------------------------------------------------
----------------------------------------------------------------
|Mnemonic |Opcode|NZVC|Description |Notes |
|---------+------+----+--------------------------+-------------|
|ADCb d |B055DD|****|Add Carry |d=d+C |
|ADD s,d |06SSDD|****|Add |d=s+d |
|ASH s,r |072RSS|****|Arithmetic Shift Combined | (EIS)|
|ASLb d |B063DD|****|Arithmetic Shift Left |d=d*2 |
|ASRb d |B062DD|****|Arithmetic Shift Right |d=d/2 |
|BCC a |1030XX|----|Branch if Carry Clear |If C=0 |
|BCS a |1034XX|----|Branch if Carry Set |If C=1 |
|BEQ a |0014XX|----|Branch if Equal |If Z=0 |
|BGE a |0020XX|----|Branch if Greater or Equal|If NxV=0 |
|BGT a |0030XX|----|Branch if Greater Than |If Zv{NxV}=0 |
|BICb s,d |B4SSDD|**0-|Bit Clear |d=d&{~s} |
|BISb s,d |B5SSDD|**0-|Bit Set (OR) |d=dvs |
|BITb s,d |B3SSDD|**0-|Bit Test (AND) |d&s |
|BHI a |1010XX|----|Branch if Higher |If CvZ=0 |
|BHIS a |1030XX|----|Branch if Higher or Same |If C=0 |
|BLE a |0034XX|----|Branch if Less or Equal |If Zv{NxV}=1 |
|BLT a |0024XX|----|Branch if Less Than |If NxV=1 |
|BLO a |1034XX|----|Branch if Lower |If C=1 |
|BLOS a |1014XX|----|Branch if Lower or Same |If CvZ=1 |
|BMI a |1004XX|----|Branch if Minus |If N=1 |
|BNE a |0010XX|----|Branch if Not Equal |If Z=1 |
|BPL a |1000XX|----|Branch if Plus |If N=0 |
|BPT |000003|----|Breakpoint Trap |Vector at 14 |
|BR a |0004XX|----|Branch |PC=PC+2*XX |
|BVC a |1020XX|----|Branch if Overflow Clear |If V=0 |
|BVS a |1024XX|----|Branch if Overflow Set |If V=1 |
|CALL d |0047DD|----|Call subroutine | (= JSR PC,d)|
|CCC |000257|0000|Clear all Condition Codes |{C,N,V,Z}=0 |
|CLC |000241|---0|Clear Carry |C=0 |
|CLN |000250|0---|Clear Negative |N=0 |
|CLRb d |B050DD|0100|Clear |d=0 |
|CLV |000242|--0-|Clear Overflow |V=0 |
|CLZ |000244|-0--|Clear Zero |Z=0 |
|CMPb s,d |B2SSDD|****|Compare |s-d |
|COMb d |B051DD|**01|Complement |d=~d |
|DECb d |B053DD|***-|Decrement |d=d-1 |
|DIV s,r |071RSS|****|Divide |r=r/s (EIS)|
|EMT t |1040TT|----|Emulator Trap |Vector at 30 |
|FADD r |07500R|**00|Floating Add | (FIS)|
|FDIV r |07503R|**00|Floating Divide | (FIS)|
|FMUL r |07502R|**00|Floating Multiply | (FIS)|
|FSUB r |07501R|**00|Floating Subtract | (FIS)|
|HALT |000000|----|Halt | |
|INCb d |B052DD|***-|Increment |d=d+1 |
|IOT |000004|----|Input/Output Trap |Vector at 20 |
|JMP d |0001DD|----|Jump |PC=d |
|JSR r,d |004RDD|----|Jump to Subroutine |r=PC,PC=d |
|MARK n |0064NN|----|Mark stack |RTS aid |
|MFPD s |1065SS|**0-|Move From Previous Data | |
|MFPI s |0065SS|**0-|Move From Previous Instr. | |
|MOVb s,d |B1SSDD|**0-|Move |d=s |
|MTPD d |1066DD|**0-|Move To Previous Data | |
|MTPI d |0066DD|**0-|Move To Previous Instr. | |
|MUL s,r |070RSS|**0*|Multiply |r=r*s (EIS)|
|NEGb d |B054DD|****|Negate |d=-d |
|NOP |000240|----|No Operation | |
|RESET |000005|----|Reset external bus | |
|RETURN |000207|----|Return from subroutine | (= RTS PC)|
|ROLb d |B061DD|****|Rotate Left |d={C,d}<- |
|RORb d |B060DD|****|Rotate Right |d=->{C,d} |
|RTI |000002|----|Return from Interrupt |{PC,PS}=(SP)+|
|RTS r |00020R|----|Return from Subroutine |PC=r,r=(SP)+ |
|RTT |000006|----|Return from Trace trap |No T trap |
|SBCb d |B056DD|****|Subtract Carry |d=d-C |
|SCC |000277|1111|Set all Condition Codes |{C,N,V,Z}=0 |
|SEC |000261|---1|Set Carry |C=1 |
|SEN |000270|1---|Set Negative |N=1 |
|SEV |000262|--1-|Set Overflow |V=1 |
|SEZ |000264|-1--|Set Zero |Z=1 |
|SOB r,a |077RNN|----|Subtract One and Branch |PC=PC-2*NN |
|SPL n |00023N|----|Set Priority Level |PS<7:5>=N |
|SUB s,d |16SSDD|****|Subtract |d=d-s |
|SWAB d |0003DD|**00|Swap Bytes | |
|SXT d |0067DD|-*0-|Sign Extend |d=0 or -1 |
|TRAP t |1044TT|----|Trap |Vector at 34 |
----------------------------------------------------------------
----------------------------------------------------------------
|Mnemonic |Opcode|NZVC|Description |Notes |
|---------+------+----+--------------------------+-------------|
|TSTb d |B055DD|**00|Test |d |
|WAIT |000001|----|Wait for interrupt | |
|XOR r,d |074RDD|**0-|Exclusive OR |d=dxr |
|---------+------+----+----------------------------------------|
| | B| |0 for word, 1 for byte (1 bit) |
| | DD| |Destination field (6 bits) |
| | N| |Number (3 bits) |
| | NN| |Number (6 bits) |
| | R| |Register (3 bits, R0-5/SP/PC) |
| | SS| |Source field (6 bits) |
| | TT| |Number (8 bits) |
| | XX| |Offset (8 bits, -128 to +127) |
|----------------+----+----------------------------------------|
| PSW |-*01|Flag unaffected/affected/reset/set |
| | |Current mode (Bits 15 to 14) |
| | |Previous mode (Bits 13 to 12) |
| | |General register set (Bit 11) |
| | |Priority level (Bits 7 to 5) |
| T | |Trace trap (Bit 4) |
| N |N |Negative (Bit 3) |
| Z | Z |Zero (Bit 2) |
| V | V |Overflow (Bit 1) |
| C | C|Carry (Bit 0) |
|---------------------+----------------------------------------|
| r |Register (mode 0) |
| (r) |Register deferred (mode 1) |
| @r | ditto |
| (r)+ |Auto-increment (mode 2) |
| @(r)+ |Auto-increment deferred (mode 3) |
| -(r) |Auto-decrement (mode 4) |
| @-(r) |Auto-decrement deferred (mode 5) |
| nn(r) |Index (mode 6) |
| @nn(r) |Index deferred (mode 7) |
| #nn |Immediate (mode 2, r=PC) |
| @#nn |Absolute (mode 3, r=PC) |
| nn |Relative (mode 6, r=PC) |
| @nn |Relative deferred (mode 7, r=PC) |
|---------------------+----------------------------------------|
| Rn |General purpose Register (16-bit, n=0-5)|
| SP |Stack Pointer (16-bit, R6) |
| PC |Program Counter (16-bit, R7) |
| PS |Processor Status (16-bit) |
|---------------------+----------------------------------------|
| a |Relative address |
| b |Blank or B for word or byte operand(s) |
| d |Destination |
| n |Register number (0 to 5) |
| nn |16-bit expression (0 to 65535) |
| r |Register (Rn,SP,PC) |
| s |Source |
| t |Trap number (0 to 255) |
| + - |Add/subtract |
| * / |Multiply/divide |
| ^ |Exponent power |
| & ~ |Logical AND/NOT |
| v x |Logical inclusive/exclusive OR |
| <- -> |Rotate left/right |
| { } |Combination of operands |
| < : > |Bit range |
|---------------------+----------------------------------------|
| DEC |Digital Equipment Corporation |
| EIS |Extended fixed point Instruction Set |
| FIS |Floating point Instruction Set |
| PSW |Processor Status Word |
|---------------------+----------------------------------------|
| 000 |Reserved vector |
| 004 |Time-out/system error vector |
| 010 |Illegal and reserved instruction vector |
| 014 |BPT instruction vector |
| 020 |IOT instruction vector |
| 024 |Power fail vector |
| 030 |EMT instruction vector |
| 034 |TRAP instruction vector |
| 060 |Console input device vector |
| 064 |Console output device vector |
| 100 |External event line interrupt vector |
| 160000-177776 |Device addresses |
----------------------------------------------------------------
