123, wat

Krzysztof Pałka,

nr 3 ,grupa I2Y3S1

Sprawozdanie z pracy laboratoryjnej

Architektura i organizacja komputerów II

Przetwarzanie potokowe. Architektura procesora DLX formaty danych, formaty rozkazów.

Data wykonania : 04.05.2013                                                Prowadzący: mgr inż. Artur Miktus

                            .data

Prompt:               .asciiz               "An integer value >1 : "

PrintfFormat:              .asciiz               "Factorial = %g\n\n"

                            .align                            2

PrintfPar:              .word                            PrintfFormat

PrintfValue:              .space                            8

                            .text

                            .global              main

main:

                            ;*** Read value from stdin into R1

                            addi                            r1,r0,Prompt

                            jal                            InputUnsigned

                            ;*** init values

                            movi2fp               f10,r1                            ;R1 -> D0              D0..Count register

                            cvti2d                            f0,f10

                            addi                            r2,r0,1               ;1 -> D2              D2..result

                            movi2fp                            f11,r2

                            cvti2d                            f2,f11

                            movd                            f4,f2                            ;1-> D4               D4..Constant 1

                            ;*** Break loop if D0 = 1

Loop:                            led                            f0,f4                            ;D0<=1 ?

                            bfpt                            Finish

                            ;*** Multiplication and next loop

                            multd                            f2,f2,f0

                            subd                            f0,f0,f4

                            j                            Loop

Finish:               ;*** write result to stdout

                            sd                            PrintfValue,f2

                            addi                            r14,r0,PrintfPar

                            trap                            5

                            ;*** end

                            trap                            0