Those table are the AX register return's value:
| Key | Normal | Shifted | w/Ctrl | w/Alt |
| A | 1E61 | 1E41 | 1E01 | 1E00 |
| B | 3062 | 3042 | 3002 | 3000 |
| C | 2E63 | 2E42 | 2E03 | 2E00 |
| D | 2064 | 2044 | 2004 | 2000 |
| E | 1265 | 1245 | 1205 | 1200 |
| F | 2166 | 2146 | 2106 | 2100 |
| G | 2267 | 2247 | 2207 | 2200 |
| H | 2368 | 2348 | 2308 | 2300 |
| I | 1769 | 1749 | 1709 | 1700 |
| J | 246A | 244A | 240A | 2400 |
| K | 256B | 254B | 250B | 2500 |
| L | 266C | 264C | 260C | 2600 |
| M | 326D | 324D | 320D | 3200 |
| N | 316E | 314E | 310E | 3100 |
| O | 186F | 184F | 180F | 1800 |
| P | 1970 | 1950 | 1910 | 1900 |
| Q | 1071 | 1051 | 1011 | 1000 |
| R | 1372 | 1352 | 1312 | 1300 |
| S | 1F73 | 1F53 | 1F13 | 1F00 |
| T | 1474 | 1454 | 1414 | 1400 |
| U | 1675 | 1655 | 1615 | 1600 |
| V | 2F76 | 2F56 | 2F16 | 2F00 |
| W | 1177 | 1157 | 1117 | 1100 |
| X | 2D78 | 2D58 | 2D18 | 2D00 |
| Y | 1579 | 1559 | 1519 | 1500 |
| Z | 2C7A | 2C5A | 2C1A | 2C00 |
| Key | Normal | Shifted | w/Ctrl | w/Alt |
| 1 | 0231 | 0221 | | 7800 |
| 2 | 0332 | 0340 | 0300 | 7900 |
| 3 | 0433 | 0423 | | 7A00 |
| 4 | 0534 | 0524 | | 7B00 |
| 5 | 0635 | 0625 | | 7C00 |
| 6 | 0736 | 075E | 071E | 7D00 |
| 7 | 0837 | 0826 | | 7E00 |
| 8 | 0938 | 092A | | 7F00 |
| 9 | 0A39 | 0A28 | | 8000 |
| 0 | 0B30 | 0B29 | | 8100 |
| Key | Normal | Shifted | w/Ctrl | w/Alt |
| - | 0C2D | 0C5F | 0C1F | 8200 |
| = | 0D3D | 0D2B | | 8300 |
| [ | 1A5B | 1A7B | 1A1B | 1A00 |
| ] | 1B5D | 1B7D | 1B1D | 1B00 |
| ; | 273B | 273A | | 2700 |
| ' | 2827 | 2822 | | |
| ` | 2960 | 297E | | |
| \ | 2B5C | 2B7C | 2B1C | 2600 (same as Alt L) |
| , | 332C | 333C | | |
| . | 342E | 343E | | |
| / | 352F | 353F | | |
| Key | Normal | Shifted | w/Ctrl | w/Alt |
| F1 | 3B00 | 5400 | 5E00 | 6800 |
| F2 | 3C00 | 5500 | 5F00 | 6900 |
| F3 | 3D00 | 5600 | 6000 | 6A00 |
| F4 | 3E00 | 5700 | 6100 | 6B00 |
| F5 | 3F00 | 5800 | 6200 | 6C00 |
| F6 | 4000 | 5900 | 6300 | 6D00 |
| F7 | 4100 | 5A00 | 6400 | 6E00 |
| F8 | 4200 | 5B00 | 6500 | 6F00 |
| F9 | 4300 | 5C00 | 6600 | 7000 |
| F10 | 4400 | 5D00 | 6700 | 7100 |
| F11 | 8500 | 8700 | 8900 | 8B00 |
| F12 | 8600 | 8800 | 8A00 | 8C00 |
| Key | Normal | Shifted | w/Ctrl | w/Alt |
| BackSpace | 0E08 | 0E08 | 0E7F | 0E00 |
| Del | 5300 | 532E | 9300 | A300 |
| Down Arrow | 5000 | 5032 | 9100 | A000 |
| End | 4F00 | 4F31 | 7500 | 9F00 |
| Enter | 1C0D | 1C0D | 1C0A | A600 |
| Esc | 011B | 011B | 011B | 0100 |
| Home | 4700 | 4737 | 7700 | 9700 |
| Ins | 5200 | 5230 | 9200 | A200 |
| Keypad 5 | | 4C35 | 8F00 | |
| Keypad * | 372A | | 9600 | 3700 |
| Keypad - | 4A2D | 4A2D | 8E00 | 4A00 |
| Keypad + | 4E2B | 4E2B | | 4E00 |
| Keypad / | 352F | 352F | 9500 | A400 |
| Left Arrow | 4B00 | 4B34 | 7300 | 9B00 |
| PgDn | 5100 | 5133 | 7600 | A100 |
| PgUp | 4900 | 4939 | 8400 | 9900 |
| PrtSc | | | 7200 | |
| Right Arrow | 4D00 | 4D36 | 7400 | 9D00 |
| SpaceBar | 3920 | 3920 | 3920 | 3920 |
| Tab | 0F09 | 0F00 | 9400 | A500 |
| Up Arrow | 4800 | 4838 | 8D00 | 9800 |
Some key combinations are not available on all systems. The PS/2 includes many that aren't available on the PC, XT and AT.
To retrieve the character from a scan code logical AND the word with 0x00FF.
see INT 16 MAKE CODES
