1. The article was first posted on Aug. 6, 2021
2. Revised on Aug. 10, 2021
Corrected mistake in Fig. 3.
3. Revised on Sep. 4, 2021
Updated the assembly code to Ver. 1.1.0. The exponent part is always set to zero when the result of an operation is zero.
As an application example, Fast Fourier Transform program and execution example were added to the attachment.
Added single lowercase letters to variable names.
4. Revised on Nov. 4, 2021
Added Chapter 11, "Making ROMs of the interpreter" to the Details.
5. Revised on Dec. 31, 2021, Jan. 4, 2022
To the Details, added programming & execution example, Fig. 7 "Calculation of natural logarithm function" and corrected Fig. 6.
6. Revised on Jan. 24, 2022
To the Details, inserted new chapter 10, "Application example", new Fig. 9.
Added maximum operating clock frequency value to the chapter "Making ROMs of the interpreter".
7. Revised on Mar. 5, 2022
To the Details chapter 10, added video link "Homemade Floating Point Interpreter computes FFT".
8. Revised on Apr. 9, 2022
Updated assembly code version to Ver. 1.2.0, for bug fix for square root function argument zero.
9. Revised on May 13, 2022
Added Fig. 6 for square root calculation and Fig. 7 for sine function calculation to chapter 6 "Elementary functions".
10. Revised on May 14, 2022
Added handling of negative arguments to the description of the exponential function calculation in Chapter 6.
11. Revised on Nov. 30, 2022
Added the demo video for executing of an application program of calculating planet positions in Chapter 11.
12. Revised on Dec. 13, 2022
Updated the assembly code of the attachment to version 1.4.1, resolving a bug that caused an error in the function calculation for every 256 characters of the user program.
A description of the defects found so far and the assembly code version updates that resolved them were added to Chapter 9.
13. Revised on Feb. 2, 2023
Corrected Fig. 2 in Chapter 3.
Added Fig. 5.1 for multiplication flowchart, and Fig. 5.2 for division flowchart in Chapter 5.
14. Revised on Feb. 7, 2023
The variable names in Fig. 9 were modified to match the comments in the source code.
15. Revised on Mar. 14, 2023
Updated the assembly code of the attachment to version 1.5.0, allow user program area limit to be set and correct normalize bug when the mantissa part is zero.
Added Fig. 12 of PROM programmer in Chapter 12.
16. Revised on Mar. 21, 2023
Added Video 3 to introduce updating the interpreter by using the PROM programmer.
Correct the power spectrum at zero of execution example in Chapter 2.
17. Revised on Aug. 01, 2023
Added program loading command using parallel interface, updated assembly code version to Ver. 2.0.0Added Chapter 8 "program loading" and moved up subsequent chapter numbers.