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Seth Morabito 2018-03-01 19:21:21 -08:00
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README.md
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@ -7,7 +7,7 @@ SYMON - A 6502 System Simulator
See the file COPYING for license.
![Symon Simulator in Action](http://www.loomcom.com/symon/screenshots/full.jpg)
![Symon Simulator in Action](https://static.loomcom.com/symon/screenshots/full.jpg)
## 1.0 About
@ -66,7 +66,7 @@ memory.
### 3.2 Serial Console and CPU Status
![Serial Console](http://www.loomcom.com/symon/screenshots/console.png)
![Serial Console](https://static.loomcom.com/symon/screenshots/console.png)
The main window of the simulator acts as the primary Input/Output
system through a virtual serial terminal. The terminal is attached to
@ -78,13 +78,13 @@ It also provides CPU status. Contents of the accumulator, index
registers, processor status flags, disassembly of the instruction
register, and stack pointer are all displayed.
![Font Selection](http://www.loomcom.com/symon/screenshots/font_selection.png)
![Font Selection](https://static.loomcom.com/symon/screenshots/font_selection.png)
The console supports font sizes from 10 to 20 points.
### 3.3 ROM Loading
![ROM Loading](http://www.loomcom.com/symon/screenshots/load_rom.png)
![ROM Loading](https://static.loomcom.com/symon/screenshots/load_rom.png)
Symon can load any appropriately sized ROM image. The Symon
architecture expects as 16KB (16384 byte) ROM image, while the
@ -95,32 +95,32 @@ address.
### 3.4 Memory Window
![Memory Window](http://www.loomcom.com/symon/screenshots/memory_window.png)
![Memory Window](https://static.loomcom.com/symon/screenshots/memory_window.png)
Memory contents can be viewed (and edited) one page at a time through the Memory Window.
### 3.5 Trace Log
![Trace Log](http://www.loomcom.com/symon/screenshots/trace_log.png)
![Trace Log](https://static.loomcom.com/symon/screenshots/trace_log.png)
The last 20,000 execution steps are disassembled and logged to the Trace Log
Window.
### 3.6 Simulator Speeds
![Speeds](http://www.loomcom.com/symon/screenshots/simulator_menu.png)
![Speeds](https://static.loomcom.com/symon/screenshots/simulator_menu.png)
Simulated speeds may be set from 1MHz to 8MHz.
### 3.7 Breakpoints
![Breakpoints](http://www.loomcom.com/symon/screenshots/breakpoints.png)
![Breakpoints](https://static.loomcom.com/symon/screenshots/breakpoints.png)
Breakpoints can be set and removed through the Breakpoints window.
### 3.8 Experimental 6545 CRTC Video
![Composite Video](http://www.loomcom.com/symon/screenshots/video_window.png)
![Composite Video](https://static.loomcom.com/symon/screenshots/video_window.png)
This feature is highly experimental. It's possible to open a video window
from the "View" menu. This window simulates the output of a MOS 6545 CRT