randy@petfe.UUCP (Randy Banton) (05/07/85)
Any comments about this statement in Electronic Design, May 5, 1985 on page 42 ? "Motorola Inc.'s chip set is not yet complete and rumors are that the company is having problems marrying its future MMU with the existing 68020 CPU." Does anyone have any information about this rumor, specifically the part about MMU problems ? I am interested in the *real* status of the 68851. Randy
phil@amdcad.UUCP (Phil Ngai) (05/09/85)
In article <259@petfe.UUCP>, randy@petfe.UUCP (Randy Banton) writes: > Any comments about this statement in Electronic Design, May 5, 1985 > on page 42 ? > > "Motorola Inc.'s chip set is not yet complete and rumors > are that the company is having problems marrying its > future MMU with the existing 68020 CPU." Gee, maybe some day Motorola will catch up to Intel and integrate the CPU and the MMU. expecting lots of flames on this one... -- I speak for myself and no one else. Phil Ngai (408) 749-5720 UUCP: {ucbvax,decwrl,ihnp4,allegra}!amdcad!phil ARPA: amdcad!phil@decwrl.ARPA
john@x.UUCP (John Woods) (05/10/85)
> In article <259@petfe.UUCP>, randy@petfe.UUCP (Randy Banton) writes: > > Any comments about this statement in Electronic Design, May 5, 1985 > > on page 42 ? > > "Motorola Inc.'s chip set is not yet complete and rumors > > are that the company is having problems marrying its > > future MMU with the existing 68020 CPU." > Gee, maybe some day Motorola will catch up to Intel and integrate the > CPU and the MMU. > > expecting lots of flames on this one... Yup: Most manufacturers (with the exception of Intel) use the abbreviation MMU to mean Memory Management Unit. Intel's on-chip MMU is clearly a Memory Mismanagement Unit. The advantage of an off-chip MMU is that customers can design their own MMU, if they regard themselves as better at it (or understanding their needs better). However, there appears here a correlation between need to do so and inability to do so...... Why did computer design cease to advance with the PDP-11 :-)? -- John Woods, Charles River Data Systems, Framingham MA, (617) 626-1101 ...!decvax!frog!john, ...!mit-eddie!jfw, jfw%mit-ccc@MIT-XX.ARPA "MU" said the Sacred Chao...