xerox Alto Virtual Memory Proposal 1974 free download

File name Alto_Virtual_Memory_Proposal_1974.pdf

M E f1 0 To: CSL, Learning Research Group Date: June 6, 1974 From: (len ~/egbre it Location: Polo Alto Subject: Alto Virtual f1emory Proposal O'rnan 1za t 1on: PARC'/CSL Archivu category: Alto 1) Summllrl I propose implementing a virtual address space of 2f24 \-/ords at the instruction level. All lun~llIage systems can usc this virtual address space. Hil P pin n v i I~ L1I a 1 tl d d res s e sin top hy sic a 1 add r' e sse sis don c' , i nth e rn 0 5 t f r e que n t Cilse, \'1iLh a small set of non-associative mapping registers. Pro GI~ il rn s run i n II 2 t 24 bit vir t u il 1 odd res ssp nc e . I I 1 1 d ; s c u s sad d res sin g tllis space in lerms of a Nova-like instruction sot not because this is optimal but because its a concrete placc to stnrt