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Created page with "[Category:SPO600][Category:6502][Category:Assembly Language] A simple web-based 6502 emulator is available at [http://6502.cdot.systems] == Basic Controls == The emulato..."
[Category:SPO600][Category:6502][Category:Assembly Language]
A simple web-based [[6502]] emulator is available at [http://6502.cdot.systems]
== Basic Controls ==
The emulator has a text area for data entry, a small bit-mapped screen (32x32 pixels), a character screen (80x25 characters), a debug area, a memory monitor, and a message area.
These controls are available at the top of the screen:
* Assemble - assembles the code in the text area, placing the resulting binary machine language at $0600 and outputting any error messasges to the message area.
* Run - runs the assembled code, ''if'' it assembled correctly. While the code is running, this button becomes a Stop button.
* Reset - changes the PC to $0600, clears the bitmap and character displays, and clears the stack and zero page.
* Hexdump - shows the hexadecimal values in memory starting at $0600
* Disassemble - shows a combined hexdump and disassembly of code at $0600
* Notes - displays notes about the emulator in the message area.
== Using the Debugger ==
The debugger will constantly show the stat of the emulated 6502's registers. If you select the Debugger checkbox, you will be able to single-step through memory or jump to an address or label using the associated pushbuttons.
== Using the Monitor ==
Selecting the Monitor checkbox will display the specified region of memory as code is executed. For example, specifying a start of $00 and a length of $ff will display the entire zero page.
== Peripherals ==
There are four peripherals available: the bitmapped and character displays, a pseudo-random number generator, and a single-key keyboard interface.
A simple web-based [[6502]] emulator is available at [http://6502.cdot.systems]
== Basic Controls ==
The emulator has a text area for data entry, a small bit-mapped screen (32x32 pixels), a character screen (80x25 characters), a debug area, a memory monitor, and a message area.
These controls are available at the top of the screen:
* Assemble - assembles the code in the text area, placing the resulting binary machine language at $0600 and outputting any error messasges to the message area.
* Run - runs the assembled code, ''if'' it assembled correctly. While the code is running, this button becomes a Stop button.
* Reset - changes the PC to $0600, clears the bitmap and character displays, and clears the stack and zero page.
* Hexdump - shows the hexadecimal values in memory starting at $0600
* Disassemble - shows a combined hexdump and disassembly of code at $0600
* Notes - displays notes about the emulator in the message area.
== Using the Debugger ==
The debugger will constantly show the stat of the emulated 6502's registers. If you select the Debugger checkbox, you will be able to single-step through memory or jump to an address or label using the associated pushbuttons.
== Using the Monitor ==
Selecting the Monitor checkbox will display the specified region of memory as code is executed. For example, specifying a start of $00 and a length of $ff will display the entire zero page.
== Peripherals ==
There are four peripherals available: the bitmapped and character displays, a pseudo-random number generator, and a single-key keyboard interface.