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LucidOverCalc - FreeBASIC Version

The FreeBASIC version of the AM frequency calculator is by far the most efficient of the ports so far. It supports Linux, Windows, and DOS, but should also work on anything that can run FreeBASIC 1.07.1. So far it has been tested with:

  • Manjaro Linux x86_64
  • Windows 10 Home 64-bit
  • MS-DOS 6.22

Minimum Requirements

Part Grade
CPU Intel 386 (i386) compatible or higher.
FPU 387 or SSE compatibles. SSE is not available on machines with processors that don't support the i686 (Intel Pentium III) instruction set.
RAM 1MB (probably less, but usage depends on version and build).
Disk Space About 100KB

Build Requirements

To Build:

Navigate to the FB version's source directory (LucidOverCalc/fb-version). Make sure your path environment variable contains the path to the FreeBASIC compiler (fbc on *nix and fbc.exe on Windows/DOS), and run the command fbc lucidoc.bas to build the executable.

Setting Build Options

These parameters control the default settings of the built executable. The defaults are set in the file exopts.bi, but can be overridden with fbc's -d parameter at compile time.

Name Effect Values Default
STEP_SIZE Changes the amount used to iterate steps. Any number between -1 and 1. 0.5
OFFTIME_MIN Sets the lowest amount of OFF time to calcualte for. Any positive integer. 1
OFFTIME_MAX Sets the highest amount of OFF time to calculate for. Any number greater than the value of OFFTIME_MIN 8
TABS_COUNT Changes the amount of whitespace characters placed between columns of the output. Any integer >= 15 15
NEGATIVE_OUTPUT Enables or disables the program from outputting negative frequencies. 1=all, 2=hide (places an "N/A" in the frequency column), and 3=omit 2
ENABLE_COLOR Enables color output. TRUE/FALSE TRUE
BARE_OUTPUT Enables or disables bare output mode. TRUE/FALSE FALSE

Selecting an Floating Point Unit

While by default, Lucid uses the traditional x87 FPU, it can also make usage of SSE instructions on i686 or greater platforms. In order to enable support for SSE, add the flag -fpu sse to your build command. SSE does not work under DOS.