The latter enables the usage of memory up to 2 Mwords, using the UNIBUS map, which translates 18-bit UNIBUS addresses to 22-bit physical addresses. Two of the most important changes was the addition of cache (2 KByte of bipolar memory) and the 22-bit memory management. The KB11B is a re-enginered version of the PDP-11/45's CPU, with some new features. Introduced in March 1975, the PDP-11/70 is the bigest of the PDP-11s. They run from Berg connector headers on boards in the KB11 CPU's cache to others on boards in the MJ11/MK11. The cabling used for the Main Memory Bus ( DEC part number 70-10824) consists of a set of four BC06R-xx flat cables two for the address and control, and two for the data. The Main Memory Bus consisted of transmission lines, which required terminators on both ends at the MJ11/M11 end, a pair of H873 modules were plugged into the last output port to do that. The main memory systems supported by the -11/70 were the MJ11 memory system (which used core memory), and the later MK11 memory system (which used dynamic RAM). (The difference between the two was whether they took the optional FP11-B or FP11-C FPP.) The CPU was the KB11-B (in early units, prior to 1976) or KB11-C (later) CPU.
A 2 Kbyte, 300 nsec cache, organized as 2-way set associative, with 4-byte blocks, connected to what had been the FastBus high-speed memory interface on the PDP-11/45 CPU.While the ARM processor in the Acorn Archimedes is a 32-bit chip, it only had 26-bit addressing making an ARM/Archimedes emulator, such as Aemulor or others below, necessary for 26-bit compatibility, for later ARM processors have mostly have dropped it.The PDP-11/70 was a very high performance UNIBUS PDP-11 system it basically took the high-performance CPU of the PDP-11/45 (implemented in SSI Schottky TTL logic), and augmented it with:
#PDP 11 EMULATOR MAC WINDOWS 10#
X86-64 platforms (64-bit PC and compatible hardware) EmulatorĦ0-bit guest systems 60-bit CDC 6000 series and Cyber mainframe EmulatorĤ8-bit guest systems English Electric KDF9 EmulatorĬross-platform/ POSIX API: binary for OS X on PowerPCĬross-platform/ POSIX API: binaries for 32-bit Intel Linux, Raspberry Pi, OS X Lion, and OS X YosemiteĬross-platform/ POSIX API: binary for 32-bit Windows with CygwinĬross-platform/ POSIX API: binaries for Intel macOS Mojave through Big Sur, and 64-bit Intel Linux (also runs under Windows 10 and FreeBSD)ĭEC PDP-10: PDP-6, KA10, KI10, KL10A/B, and various very old computersģ2-bit guest systems 32-bit IBM mainframe Main page: Engineering:PC-based IBM-compatible mainframes Emulator
5.17 x86 platforms (32-bit PC and compatible hardware).
5.2 Acorn Archimedes, A7000, RiscPC, Phoebe.
2.1 60-bit CDC 6000 series and Cyber mainframe.1.5 x86-64 platforms (64-bit PC and compatible hardware).
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