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| Version 1.0 |
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License: GPL
Updated: February 18, 2004
Source: Source Included
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card_puncher - with negative addresses now possible, now puts out only one value per card image.
MIXAL - supports negative memory addresses, running the location counter backwards for them, so that control state programs using negative-address memory can be assembled.
MIX - fully implemented instructions that access memory to support negative-address memory. Extended the MIX Go button so that it brings up MIX in the control state, with interrupts disabled. Enhanced the boot loader to protect itself from being overlain by the data it reads from the following deck of information cards, and to terminate by entering the MIX normal state. Removed the handling of "real-time' clock interrupts from the processor code (see next item). Implemented the card punch and paper tape reader. Greatly reduced the source size of the implementation for the CMPr instructions.
MIXbos - added a minimal punched-card based batch operating system which includes interrupt handlers for the clock and I/O device interrupts.
Updated the README.txt file after posting this version -- if you downloaded the 123K zip file, please get the 125K one instead.
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Intel Version - requires R5 (125 KB) |
320 downloads |
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PowerPC Version - requires R4.5 (125 KB) |
69 downloads |
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| Version 0.98 |
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License: GPL
Updated: January 18, 2004
Source: Source Included
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Now implements MIX instruction timing.
Added the interrupt capability described in Exercise 18, Section 1.4.5.
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Intel Version - requires R5 (115 KB) |
67 downloads |
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PowerPC Version - requires R4.5 (115 KB) |
13 downloads |
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| Version 0.9 |
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License: GPL
Updated: January 11, 2004
Source: Source Included
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Includes a very rudimentary assembler for MIXAL.
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Intel Version - requires R5 (111 KB) |
70 downloads |
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PowerPC Version - requires R4.5 (111 KB) |
13 downloads |
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