Computer composition principle courses A5 gue
tags: Computer composition principle
Title: Design an embedded CISC model computer
Class A: Enter an array M that contains 10 integers (no signed number), output the number of outputs and the number of occurrences
Source file at the bottom
First, instruction system design
| Directive Missing |
Instruction format |
Features |
|||
| 15——12 |
11 10 |
9 8 |
7——0 |
||
| MOV Rd,im |
0001 |
XX |
Rd |
Im |
Enter equipment → RD |
| IN Rd |
0010 |
XX |
Rd |
XXXXXX |
input device → Rd |
| DEC Rd |
0011 |
XX |
Rd |
XXXXXX |
(RD) - 1 → RD, latched ZF, CF |
| SUB Rs Rd |
0100 |
Rs |
Rd |
XXXXXX |
(Rs) - (Rd) → RdLockZF、CF |
| JB |
0101 |
XX |
XX |
addr |
CF = 0 AddR → PC |
| JZ |
0110 |
XX |
XX |
addr |
ZF=0 thenaddr → PC |
| JMP |
0111 |
XX |
XX |
addr |
addr → PC |
| CMP |
1000 |
Rs |
Rd |
XXXXXX |
(Rs) – (Rd)LockZF、CF |
| ADD |
1001 |
Rs |
Rd |
XXXXXX |
(RS) + (RD) → RD, latched ZF, CF |
| OUT |
1010 |
Rs |
XX |
XXXXXX |
(Rs) → Output device |
| LAD |
1011 |
Rs |
(Rd) |
XXXXXX |
((Rs)) → Rd |
| STO |
1100 |
Rs |
(Rd) |
XXXXXX |
(Rs) → (Rd) |
| INC |
1101 |
XX |
Rd |
XXXXXX |
(RD) + 1 → Rd, latching ZF, CF |
Second, the micro-instruction
(1) List of microinstruction
(2) microprogram flowchart
Third, assembly language design
| MOV R0,0H MOV R1,10 FLAG1:IN R2 STO R2,(R0) INC R0 CMP R0,R1 JB FLAG1 --------- The number of initialization --MOV R1,20 --MOV R2,1H FLAG2:ST0 R2,(R0) INC R0 CMP R0,R1 JB FALG2 --------- Recording MOV R1,0H FLAG3:MOV R0,1H ADD RO,R1 FLAG4:LAD (R1),R2 LAD (R0),R3 CMP R2,R3 JZ ADD_ONE FLAG5:INC RO MOV R2,10 CMP R0,R2 JB FLAG4 INC R1 CMP R1,R2 JB FLAG3 JMP FALG6 ADD_ONE:MOV R3,31 STO R1,(R3) MOV R3,10 ADD R1,R3 LAD (R1),R3 INC R3 STO R3,(R1) MOV R3,31 LAD (R3),R1 JMP FALG5
FALG6:MOV R0,0 MOV R1,20 MOV R2,29 LAD (R0),R3 STO R3,(R2) INC R2 MOV R3,10 ADD R0,R3 LAD (R0),R3 STO R3,(R2) MOV R0,0 FLAG7:INC R0 MOV R1,10 ADD R1,R0 LAD (R1),R2 CMP R3,R2 JB SAVE
MOV R1,9 CMP R0,R1 JB FLAG7 JMP END
SAVE:MOV R1,30 STO R2,(R1) LAD (R1),R3 LAD (R0),R2 MOV R1,29 STO R2,(R1) MOV R1,9 CMP R0,R1 JB FLAG7
END:MOV R0,29 LAD (R0) R2 INC R0 LAD ,(R0) R3 OUT R2 OUT R3 |
Link: https: //pan.baidu.com/s/19-nobtown7rwcfp3nj5taw
Extraction code: 1234
If you have any questions, please contact [email protected]
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