Monitor ROM for my 65C02 system
Supports reading FAT12 floppies and running programs from them
There is no support for writing or directories (yet)
| Name | Address | Arguments | Returns | Notes |
|---|---|---|---|---|
| CHARIN | E000 | none | A: Character, Carry set if character available | Non-blocking, if Carry is clear no char was returned |
| CHAROUT | E003 | A: Character to send | ||
| CRLF | E006 | Print Carriage return & Linefeed | ||
| RESERVED | E009 | |||
| RESERVED | E00C | |||
| CLS | E00F | CLear Screen | ||
| HEXTOASC | E012 | A: Hex number to print | ||
| CHARINW | EO15 | A: Character | Waits for a character before returning | |
| HEXOUT | E018 | A: Hex nibble to print | Print hex nibble | |
| CHARINU | E01B | A: Character | Returns input character converted to uppercase | |
| FOPEN | E01E | TODO: document | ||
| FCLOSE | E021 | TODO: document | ||
| FREAD | E024 | TODO: document | ||
| ERRMSG | E027 | TODO: document |
| Command | Arguments | Description | Example |
|---|---|---|---|
| B | Print colour bars | B | |
| C | Clear Screen | C | |
| D | <start address> [end address] | Display memory addresses | D 0100 |
| E | <pathspec> | Execute program from disk | E A:EHBASIC.COM |
| F | <start> <end> <value> | Fill memory with a specific value | F 1000 2000 FF |
| J | <addr> | Jump to program | J 1000 |
| L | Load from SREC | L | |
| M | Memory test | M | |
| R | <addr> | Read memory location | R 0100 |
| S | <seconds> | Sleep | S 0A |
| W | <addr> <value> [<value> ...] | Write memory location(s) | W 0100 AA |
| ? | Display help | ? |