https://github.com/kjarosh/besm-emulator

An extended emulator of BESM - a Soviet mainframe computer, implemented in Java.
https://github.com/kjarosh/besm-emulator

Last synced: 7 days ago
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An extended emulator of BESM - a Soviet mainframe computer, implemented in Java.

• Host: GitHub
• URL: https://github.com/kjarosh/besm-emulator
• Owner: kjarosh
• License: gpl-3.0
• Created: 2015-09-25T17:36:52.000Z (about 9 years ago)
• Default Branch: master
• Last Pushed: 2015-09-26T08:47:40.000Z (about 9 years ago)
• Last Synced: 2024-10-28T21:29:15.445Z (about 2 months ago)
• Language: Java
• Homepage:
• Size: 168 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# BESM Emulator

Extended emulator of BESM - Soviet mainframe computer, implemented in Java.

# Usage

Type `besm -h` for help.

 - `besm ` - read and process `filename`,

 - `besm  -b` - work in binary mode,

 - `besm  -d` - work in debug mode,

 - `besm  -e` - work in extended debug mode.

## File format

Every file contains memory cells. A single cell consists of address and value.

### Binary mode

In binary mode file is read as an array of 32-bit integer values. Every value

has it's corresponding address starting from `0` and incrementing till `array_length - 1`.

Example:

```

01050607 // first instruction - c = a + b

00010007 // second instruction - print c

00000000 // third instruction - stop

00000000

00000000

0000A012 // a

00000701 // b

00000000 // c

```

### Plain mode

In plain mode input is encoded as text. Every cell has it's given address.

Example:

```

0: 1 5 6 7 // zero address value - c = a + b

1: 0 1 0 7 // print c

2: 0 0 0 0 // stop

5: 147 // a

6: 23  // b

7: 0   // c

```