Floating Point BASIC 2.2
Commands
All Floating Point BASIC 2.2 Commands including some of the start addresses of these commands are listed below. Click on the command itself to get a description of command format and usage.
| @3200 |
@31BB |
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| @3300 |
@2D81 |
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| @1C82 |
@2F70 |
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| @2162 |
@1CFB |
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@1CF7 |
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| @20D3 |
@1C8A |
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| @31E9 |
@28BA |
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| @1BDC |
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| @131E |
@32B9 |
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| @1C7E |
@3400 |
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| @34ED |
@22DE |
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| @3420 |
@18E2 |
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| @34BC |
@14FE |
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| @2B00 |
@1982 |
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| @2063 |
@19E1 |
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| @1501 |
@2C00 |
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| @1507 |
@1504 |
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| @1C6E |
@1F43 |
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| @34D9 |
@306E |
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| @27F8 |
@34E1 |
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| @21DB |
@26F4 |
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| @1C86 |
@34E8 |
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| @33F0 |
@106A |
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| @1D78 |
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| @2600 |
@1E70 |
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| @20C2 |
@1A00 |
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| @1DF1 |
@1C7A |
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| @1FE2 |
@1C8E |
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| @1DCB |
@1FF3 |
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| @20A6 |
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| @13EC |
@1BF1 |
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| @2E00 |
@1EF0 |
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| @2599 |
@1CE7 |
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@1B7D |
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| @1904 |
@1B6A |
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| @17E6 |
@2165 |
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@33D4 |
Operators
Arithmetic operators
| Unary minus | - | (first priority) |
| Exponentiation | ↑ | (first priority) |
| Multiply | * | (second priority) |
| Divide | / | (second priority) |
| Add | + | (third priority) |
| Subtract | - | (third priority) |
Assignment operator
The assignment symbol is the equal sign ‘=‘.
Relational operators
Equality: =
Inequality: ><
Greater than: >
Less than: <
Greater than or equal to: >=
Less than or equal to:<=
Miscellaneous operators
| : | separates statements on the same line |
| ; | PRINT delimiter |
| , | PRINT delimiter |
| “ | string delimiter |
| ( | group terms |
| ) | group terms |
| # | 8 bit hexadecimal values |
| @ | 16 bit hexadecimal values |
System Parameters
Memory @4000-@4200 in the Floating Point BASIC 2.2 is used by BASIC for storing data, usage for some of the addresses is explained below.
| 4000 - 405F | Line buffer |
| 4081 - 4082 | DEFUS value |
| 4083 - 4084 | EOP (End Of Program) value |
| 408A - 408D | In hook, call to input routine |
| 408E - 4091 | Out hook, call to output routine |
| 4092 - 4093 | End array/start string value |
| 4094 - 4095 | Start array value |
| 4099 - 409A | EOD (End Of Data) and end string value |
| 409B | X value TAB |
| 409D | Flags |
| 409E | Start address user RAM |
| 409F - 40A2 | Call to BASIC functions |
| 40A3 - 40A6 | Call to BASIC functions |
| 40B1 - 40B2 | DATA pointer |
| 4100 - 4168 | Storage A, B, C.... Z, 4 bytes per variable |