| A | B | C | D | E | F | G | H | I | K | L | M | N | O | P | R | S | T | V | X |
| ADC | ADCINPUT | ADCRT |
| ADCIN | ADCLT | ADDERIN |
| CLK10K | CLK33K | COL_INQUIRE |
| CLK12K | CLK50K | CURS_BLINK |
| CLK16K | CLK8K | CURS_GETRATE |
| CLK20K | CLKEXT | CURS_HIDE |
| CLK25K | CLKOLD | CURS_NOBLINK |
| CLK25M | COL40 | CURS_SETRATE |
| CLK32M | COL80 | CURS_SHOW |
| DAC | DISK_NOCHANGE | DSPSEND_ZERO |
| DB_COMMAND | DISK_SSDD | DSPXMIT |
| DB_NULLSTRING | DISK_SSSD | DSP_ENABLE |
| DISK_DSDD | DMAPLAY | DSP_TRISTATE |
| DISK_DSED | DMAREC | DS_INQUIRE |
| DISK_DSHD | DSPRECV | |
| DISK_DSSD | DSPSEND_NOTHING |
| EC_INQUIRE | ESM_INQUIRE | EXEC_NO |
| ESB_INQUIRE | ESM_NORMAL | EXEC_NOCHANGE |
| ESG_COLOR | ESM_SMEAR | EXEC_YES |
| ESG_GRAY | ES_GRAY | EXTINP |
| ESG_INQUIRE | ES_SMEAR | EXTOUT |
| FLOPPY_DSDD | FLOP_NOSKEW | FLOW_SOFT |
| FLOPPY_DSED | FLOP_SKEW | FRATE_12 |
| FLOPPY_DSHD | FLOP_VIRGIN | FRATE_2 |
| FLOP_DRIVEA | FLOW_BOTH | FRATE_3 |
| FLOP_DRIVEB | FLOW_HARD | FRATE_6 |
| FLOP_MAGIC | FLOW_NONE | FRATE_INQUIRE |
| GI_DTR | GI_GPO | GPIO_READ |
| GI_FLOPPYA | GI_RTS | GPIO_SET |
| GI_FLOPPYB | GI_SCCPORT | GPIO_WRITE |
| GI_FLOPPYSIDE | GI_STROBE |
| HANDSHAKE | HF_INQUIRE | |
| HF_CLEAR | HF_SET |
| ICR_DMA | ICR_TXDE | IM_RELATIVE |
| ICR_HF2 | IM_ABSOLUTE | IM_YBOT |
| ICR_HF3 | IM_DISABLE | IM_YTOP |
| ICR_HREQ | IM_KEYCODE | IO_KEYBOARD |
| ICR_RXDF | IM_KEYS | IO_MIDI |
| ICR_TRDY | IM_PACKETS | IO_SERIAL |
| KB_INQUIRE | KT_NOCHANGE |
| LEFT_MIC | LTATTEN | |
| LEFT_PSG | LTGAIN |
| NO_SHAKE | NVM_READ | NVM_WRITE |
| NUMCOLS | NVM_RESET |
| OVERLAY_OFF | OVERLAY_ON | OVERSCAN |
| TBCONMAP | TLongIntFunc | TT_HIGH |
| TBIOSTIME | TMAPTAB | TT_LOW |
| TDSPBLOCK | TMOUSE | TT_MED |
| TIORECORD | TPBDEF | TV |
| TKBDVECS | TRGB | |
| TKEYTAB | TSndBuf |
| VCLK_EXTERNAL | VERTFLAG | VID_HSYNC |
| VCLK_EXTHSYNC | VGA_FALCON | VID_VSYNC |
| VCLK_EXTVSYNC | VID_CLOCK |