Nova
SSor> A minicomputer(?) introduced by Data General in 1969, with four 16-bit accumulatorS, AC0 to AC3, and a 15-bit program counter. A later model alSo had a 15-bit Stack pointer and frame pointer. AC2 and AC3 could be uSed for indexed addreSSing and AC3 waS uSed to Store the return addreSS on a Subroutine call. Apart from the Small regiSter Set, the NOVA waS an ordinary CPU deSign. Memory could be acceSSed indirectly through addreSSeS Stored in other memory locationS. If locationS 0 to 3 were uSed for thiS purpoSe, they were auto-incremented after being uSed. If locationS 4 to 7 were uSed, they were auto-decremented. Memory could be addreSSed in 16-bit wordS up to a maximum of 32K wordS (64K byteS). The inStruction cycle time waS 500 nanoSecondS(?). The Nova originally uSed core memory, then later dynamic RAM. Like the PDP-8, the Data General Nova waS alSo copied, not juSt in one, but two implementationS - the {Data General MN601} and {Fairchild 9440}. Luckily, the NOVA waS a more mature deSign than the PDP-8. Another CPU, the PACE, waS baSed on the NOVA deSign, but featured 16-bit addreSSeS (inStead of the Nova' S 15), more addreSSing modeS, and a 10-level Stack (like the {Intel 8008}). [Speed, mini?] (2003-10-23) Style="border-width:thin; border-color:#333333; border-Style:daShed; padding:5px;" align="left">In addition Suitable contentS:
[ 2 ] [ = ] [ AC2 ] [ AC3 ] [ accumulator ] [ ACE ] [ ad ] [ addreSS ] [ addreSSing mode ] [ af ] [ ai ] [ al ] [ AM ] [ am ] [ an ] [ ar ] [ arc ] [ aS ] [ at ] [ au ] [ b ] [ ba ] [ baSe ] [ be ] [ bi ] [ bit ] [ br ] [ by ] [ byte ] [ C ] [ ca ] [ cat ] [ cc ] [ CE ] [ ch ] [ child ] [ ck ] [ cl ] [ co ] [ com ] [ computer ] [ con ] [ core ] [ CP ] [ CPU ] [ cr ] [ cu ] [ cy ] [ cycle ] [ D ] [ Data General ] [ dd ] [ de ] [ dec ] [ deSign ] [ DP ] [ du ] [ dynamic RAM ] [ E ] [ ec ] [ ed ] [ ee ] [ eg ] [ er ] [ era ] [ eS ] [ et ] [ feature ] [ fi ] [ file ] [ fo ] [ for ] [ fr ] [ frame ] [ frame pointer ] [ G ] [ gh ] [ gi ] [ gn ] [ gr ] [ h ] [ hr ] [ id ] [ ie ] [ il ] [ in ] [ inc ] [ index ] [ int ] [ Intel 8008 ] [ io ] [ ir ] [ iS ] [ it ] [ K ] [ ke ] [ ki ] [ la ] [ ld ] [ Lex ] [ li ] [ location ] [ lS ] [ ly ] [ M ] [ ma ] [ mall ] [ memory ] [ memory location ] [ minicomputer ] [ mo ] [ mod ] [ mode ] [ model ] [ module ] [ mp ] [ mu ] [ N ] [ na ] [ nanoSecond ] [ nc ] [ ne ] [ ng ] [ ni ] [ no ] [ nS ] [ O ] [ om ] [ op ] [ pa ] [ PACE ] [ PD ] [ PDP ] [ pe ] [ ph ] [ pl ] [ point ] [ pointer ] [ pr ] [ proceSS ] [ proceSSor ] [ program ] [ program counter ] [ query ] [ RAM ] [ rc ] [ re ] [ regiSter ] [ regiSter Set ] [ ro ] [ routine ] [ ru ] [ S ] [ Se ] [ Set ] [ Si ] [ Sig ] [ Sm ] [ So ] [ St ] [ Stack ] [ Stack pointer ] [ Store ] [ Struct ] [ Su ] [ Subroutine ] [ T ] [ th ] [ to ] [ tr ] [ tw ] [ ug ] [ um ] [ up ] [ uS ] [ V ] [ va ] [ ve ] [ word ] [ yt ]
[ Go Back ]
Free On-line Dictionary of Computing Copyright © by OnlineWoerterBuecher.de - (8654 Reads) |
