If you clarify the exact PDF, I can give you a precise feature list.
| Feature | Description | |---------|-------------| | | Text is selectable, not scanned images only | | Bookmarks / Outline | Clickable table of contents in the sidebar | | Metadata | Title, author, subject, keywords embedded | | Hyperlinks | Internal (to figures/references) and external URLs | | Annotations allowed | Users can highlight, comment, draw | | Printability | High-resolution for print or screen | | Document security | Maybe password-protected or restricted (printing, copying) | | Fillable forms | If a workbook or application form | | Digital signature field | For official documents | | Accessibility tags | Screen-reader friendly, alt text for images | | OCR layer | If scanned, underlying searchable text | | Page labels & numbering | Logical structure | | Embedded fonts | Consistent display on any device |
This LMC simulator is based on the Little Man Computer (LMC) model of a computer, created by Dr. Stuart Madnick in 1965. LMC is generally used for educational purposes as it models a simple Von Neumann architecture computer which has all of the basic features of a modern computer. It is programmed using assembly code. You can find out more about this model on this wikipedia page.
You can read more about this LMC simulator on 101Computing.net.
Note that in the following table “xx” refers to a memory address (aka mailbox) in the RAM. The online LMC simulator has 100 different mailboxes in the RAM ranging from 00 to 99.
| Mnemonic | Name | Description | Op Code |
| INP | INPUT | Retrieve user input and stores it in the accumulator. | 901 |
| OUT | OUTPUT | Output the value stored in the accumulator. | 902 |
| LDA | LOAD | Load the Accumulator with the contents of the memory address given. | 5xx |
| STA | STORE | Store the value in the Accumulator in the memory address given. | 3xx |
| ADD | ADD | Add the contents of the memory address to the Accumulator | 1xx |
| SUB | SUBTRACT | Subtract the contents of the memory address from the Accumulator | 2xx |
| BRP | BRANCH IF POSITIVE | Branch/Jump to the address given if the Accumulator is zero or positive. | 8xx |
| BRZ | BRANCH IF ZERO | Branch/Jump to the address given if the Accumulator is zero. | 7xx |
| BRA | BRANCH ALWAYS | Branch/Jump to the address given. | 6xx |
| HLT | HALT | Stop the code | 000 |
| DAT | DATA LOCATION | Used to associate a label to a free memory address. An optional value can also be used to be stored at the memory address. |