LSI-11 | 11/10 11/05 |
11/15 | 11/20 | 11/40 11/35 |
----- 11/45 ----- | |||
Memory | Core, MOS, ROM | Core | Core | Core | Bipolar | MOS | Core | |
Reg to Reg Transfer | 3.5 µs | 3.7 µs | 2.3 µs | 0.9 µs | 0.3 µs | 0.45 µs | 0.9 µs | |
Max Memory (Words) | 32K | 28K | 28K | 124K | 124K | 124K | ||
Max Address Space | 32K | 32K | 32K | 128K | 128K | 128K | ||
General Purpose Regs | 8 | 8 | 8 | 8 | 16 | |||
Stack Processing | Yes | Yes | Yes | Yes | Yes | |||
Micro-programmed | Yes | Yes | No | Yes | Yes | |||
Instructions | Basic Set + XOR, SOB, MARK, SXT, RTT, MTPS, MFPS |
Basic Set | Basic Set | Basic Set + XOR, SOB, MARK, SXT, RTT |
Same as 11/40 + MUL, DIV, ASH, ASHC, SPL |
|||
Extended Arithmetic (hardware) |
Option (internal) MUL, DIV, ASH, ASHC |
Option (external) | option (external) | Option (internal) MUL, DIV, ASH, ASHC |
Standard (internal) | |||
Floating Point | Option, FADD, FSUB, FMUL, FDIV |
Software only | Software only | Hardware option 32-bit word |
Hardware option 32 or 64-bit word |
|||
Stack Limit Address | None | 400 (fixed) | 400 (fixed) | 400 or programmable (option) |
programmable | |||
Memory Management | not available | not available | not available | option MFPI, MTPI |
option MFPI, MFPD MTPI, MTPD |
|||
Modes | 1 | 1 | 1 | 1 std, 2 opt | 3 | |||
Automatic Priority Interrupt |
1-line multi-level |
4-line multi-level |
1-line multi-level |
4-line multi-level |
4-line multi-level |
4-line multi-level + 8 software levels |
||
Power Fail and Auto-restart |
standard | standard | option | standard | standard | standard |
PDP-11 UNIBUS | PDP-11 Q-BUS | MicroPDP-11 Q-BUS | |||
11/04 | 0.11 | 11/03 | 0.01 | 11/23 | 0.10 |
11/24 | 0.18 | 11/23 | 0.05 | 11/53 | 0.29 |
11/34 | 0.20 | 11/23+ | 0.10 | 11/73 | 0.45 |
11/44 | 0.42 | 11/83 | 0.72 | ||
11/70 | 0.60 | 11/93 | 0.90 | ||
11/84 | 0.72 | ||||
11/94 | 0.90 |