Codes of the machine of Von Neumann (Evolution)

Pseudo base base adr description

code 8 10

HLT 00 00 Stop

LOA 01 01 xxxx H Loaded the storage cell with the content with the addressed cell

LOAN 02 02 xxxx H Loaded the storage cell with the content with the addressed cell changed of sign

LABS 03 03 xxxx H Carica the absolute value

LOAR 04 04 xxxx H Loaded the R registry from one memory lease

ADD 05 05 xxxx H Sommo the storage cell with one memory lease

SUB 06 06 xxxx H Sottraggo to the storage cell one memory lease

MUL 07 07 xxxx H Multiplication between the storage cell and the content of the addressed lease

DIV 10 08 xxxx H Division with A=dividendo; xxxx H = divisor; Acc. = Rest; turned out R =

I AM 11 09 xxxx H Memorizza the storage cell in the addressed lease

STOAD 12 10 xxxx H Trasferisce the content of the field address of the storage cell in the field address

of one lease

TAR 13 11 0000 H Trasferisce the R registry in the storage cell

SHRI 14 12 Trasla of a bit to right the storage cell

SHLE 15 13 Trasla of a bit on the left the storage cell

JMP 16 14 xxxx H unconditioned Jump to one program line (lease in the memory program)

JOP 17 15 xxxx H positive Jump if

JOZ 20 16 xxxx H Jump if zero

JON 21 17 xxxx H Jump if negative

51 41 xxxx H Carica R2 with the content with the lease xxxx H

52 42 xxxx H Sottrai the content of the lease xxxx H from R2

71 57 xxxx H Salta if R2 > 0 to the lease xxxx H

IN 201 129 xxxx H Input given and memorization to leave from the indicated lease

OUT 202 130 xxxx H Output of the written data to leave from the indicated address

TRAX Trasferisce the content of the registry index in the storage cell