The list below is a synopsis for all XBIOS functions, sorted by number:
| Dec | Hex | Name of function | Exists in |
| 0 | 0x00 | Initmouse | TOS |
| 1 | 0x01 | Ssbrk | TOS |
| 2 | 0x02 | Physbase | TOS |
| 3 | 0x03 | Logbase | TOS |
| 4 | 0x04 | Getrez | TOS |
| 5 | 0x05 | Setscreen | TOS |
| 5 | 0x05 | VSetscreen | Falcon-TOS |
| 6 | 0x06 | Setpalette | TOS |
| 7 | 0x07 | Setcolor | TOS |
| 8 | 0x08 | Floprd | TOS |
| 9 | 0x09 | Flopwr | TOS |
| 10 | 0x0A | Flopfmt | TOS |
| 11 | 0x0B | Dbmsg | Atari Debugger |
| 12 | 0x0C | Midiws | TOS |
| 13 | 0x0D | Mfpint | TOS |
| 14 | 0x0E | Iorec | TOS |
| 15 | 0x0F | Rsconf | TOS |
| 16 | 0x10 | Keytbl | TOS |
| 17 | 0x11 | Random | TOS |
| 18 | 0x12 | Protobt | TOS |
| 19 | 0x13 | Flopver | TOS |
| 20 | 0x14 | Scrdmp | TOS |
| 21 | 0x15 | Cursconf | TOS |
| 22 | 0x16 | Settime | TOS |
| 23 | 0x17 | Gettime | TOS |
| 24 | 0x18 | Bioskeys | TOS |
| 25 | 0x19 | Ikbdws | TOS |
| 26 | 0x1A | Jdisint | TOS |
| 27 | 0x1B | Jenabint | TOS |
| 28 | 0x1C | Giaccess | TOS |
| 29 | 0x1D | Offgibit | TOS |
| 30 | 0x1E | Ongibit | TOS |
| 31 | 0x1F | Xbtimer | TOS |
| 32 | 0x20 | Dosound | TOS |
| 33 | 0x21 | Setprt | TOS |
| 34 | 0x22 | Kbdvbase | TOS |
| 35 | 0x23 | Kbrate | TOS |
| 36 | 0x24 | Prtblk | TOS |
| 37 | 0x25 | Vsync | TOS |
| 38 | 0x26 | Supexec | TOS |
| 39 | 0x27 | Puntaes | TOS |
| 41 | 0x29 | Floprate | TOS 1.04 |
| 42 | 0x2A | DMAread | TOS |
| 43 | 0x2B | DMAwrite | TOS |
| 43 | 0x2B | Janus | Janus |
| 44 | 0x2C | Bconmap | TOS 2 |
| 46 | 0x2E | NVMaccess | TOS 3 |
| 47 | 0x2F | Waketime | TOS 2.06, ST-Book |
| 48 | 0x30 | Metainit | MetaDOS |
| 49 | 0x31 | Metaopen | MetaDOS |
| 50 | 0x32 | Metaclose | MetaDOS |
| 51 | 0x33 | Metaread | MetaDOS |
| 52 | 0x34 | Metawrite | MetaDOS |
| 53 | 0x35 | Metaseek | MetaDOS |
| 54 | 0x36 | Metastatus | MetaDOS |
| 55 | 0x37 | Metaioctl | MetaDOS |
| 56 | 0x38 | MetaDOS | |
| 57 | 0x39 | MetaDOS | |
| 58 | 0x3A | MetaDOS | |
| 59 | 0x3B | Metastartaudio | MetaDOS |
| 60 | 0x3C | Metastopaudio | MetaDOS |
| 61 | 0x3D | Metasetsongtime | MetaDOS |
| 62 | 0x3E | Metagettoc | MetaDOS |
| 63 | 0x3F | Metadiscinfo | MetaDOS |
| 64 | 0x40 | Blitmode | TOS |
| 65 | 0x41 | Vread | CENTScreen |
| 66 | 0x42 | Vwrite | CENTScreen |
| 67 | 0x43 | Vattrib | CENTScreen |
| 68 | 0x44 | Vcreate | CENTScreen |
| 69 | 0x45 | Vdelete | CENTScreen |
| 70 | 0x46 | Vfirst | CENTScreen |
| 71 | 0x47 | Vnext | CENTScreen |
| 72 | 0x48 | Vvalid | CENTScreen |
| 73 | 0x49 | Vload | CENTScreen |
| 74 | 0x4A | Vsave | CENTScreen |
| 75 | 0x4B | Vopen | CENTScreen |
| 76 | 0x4C | Vclose | CENTScreen |
| 77 | 0x4D | Vscroll | CENTScreen |
| 78 | 0x4E | Voffset | CENTScreen |
| 79 | 0x4F | Vseek | CENTScreen |
| 80 | 0x50 | EsetShift | TOS |
| 80 | 0x50 | Vlock | CENTScreen |
| 81 | 0x51 | EgetShift | TOS |
| 81 | 0x51 | SetMon | CENTScreen |
| 82 | 0x52 | EsetBank | TOS |
| 82 | 0x52 | MultiMon | CENTScreen |
| 83 | 0x53 | EsetColor | TOS |
| 83 | 0x53 | SizeComp | CENTScreen |
| 84 | 0x54 | EsetPalette | TOS |
| 84 | 0x54 | Vsize | CENTScreen |
| 85 | 0x55 | EgetPalette | TOS |
| 86 | 0x56 | EsetGray | TOS |
| 87 | 0x57 | EsetSmear | TOS |
| 88 | 0x58 | Vsetmode | Falcon-TOS |
| 89 | 0x59 | mon_type or VgetMonitor | Falcon-TOS |
| 90 | 0x5A | VsetSync | Falcon-TOS |
| 91 | 0x5B | VgetSize | Falcon-TOS |
| 92 | 0x5C | VsetVars | Falcon-TOS |
| 93 | 0x5D | VsetRGB | Falcon-TOS |
| 94 | 0x5E | VgetRGB | Falcon-TOS |
| 95 | 0x5F | VcheckMode | Falcon-TOS, MilanTOS |
| 96 | 0x60 | Dsp_DoBlock | Falcon-TOS |
| 97 | 0x61 | Dsp_BlkHandShake | Falcon-TOS |
| 98 | 0x62 | Dsp_BlkUnpacked | Falcon-TOS |
| 99 | 0x63 | Dsp_InStream | Falcon-TOS |
| 100 | 0x64 | Init_Screen | xVT52; ST-Computer 1988-04 |
| 100 | 0x64 | Dsp_OutStream | Falcon-TOS |
| 101 | 0x65 | Dsp_IOStream | Falcon-TOS |
| 102 | 0x66 | Dsp_RemoveInterrupts | Falcon-TOS |
| 103 | 0x67 | Dsp_GetWordSize | Falcon-TOS |
| 104 | 0x68 | Dsp_Lock | Falcon-TOS |
| 105 | 0x69 | Dsp_Unlock | Falcon-TOS |
| 106 | 0x6A | Dsp_Available | Falcon-TOS |
| 107 | 0x6B | Dsp_Reserve | Falcon-TOS |
| 108 | 0x6C | Dsp_LoadProg | Falcon-TOS |
| 109 | 0x6D | Dsp_ExecProg | Falcon-TOS |
| 110 | 0x6E | Dsp_ExecBoot | Falcon-TOS |
| 111 | 0x6F | Dsp_LodToBinary | Falcon-TOS |
| 112 | 0x70 | Dsp_TriggerHC | Falcon-TOS |
| 113 | 0x71 | Dsp_RequestUniqueAbility | Falcon-TOS |
| 114 | 0x72 | Dsp_GetProgAbility | Falcon-TOS |
| 115 | 0x73 | Dsp_FlushSubroutines | Falcon-TOS |
| 116 | 0x74 | Dsp_LoadSubroutine | Falcon-TOS |
| 117 | 0x75 | Dsp_InqSubrAbility | Falcon-TOS |
| 118 | 0x76 | Dsp_RunSubroutine | Falcon-TOS |
| 119 | 0x77 | Dsp_Hf0 | Falcon-TOS |
| 120 | 0x78 | Dsp_Hf1 | Falcon-TOS |
| 121 | 0x79 | Dsp_Hf2 | Falcon-TOS |
| 122 | 0x7A | Dsp_Hf3 | Falcon-TOS |
| 123 | 0x7B | Dsp_BlkWords | Falcon-TOS |
| 124 | 0x7C | Dsp_BlkBytes | Falcon-TOS |
| 125 | 0x7D | Dsp_HStat | Falcon-TOS |
| 126 | 0x7E | Dsp_SetVectors | Falcon-TOS |
| 127 | 0x7F | Dsp_MultBlocks | Falcon-TOS |
| 128 | 0x80 | locksnd | Falcon-TOS |
| 129 | 0x81 | unlocksnd | Falcon-TOS |
| 130 | 0x82 | soundcmd | Falcon-TOS |
| 130 | 0x82 | NSoundcmd | MilanBlaster |
| 131 | 0x83 | setbuffer | Falcon-TOS |
| 132 | 0x84 | setmode | Falcon-TOS |
| 133 | 0x85 | settracks | Falcon-TOS |
| 134 | 0x86 | setmontracks | Falcon-TOS |
| 135 | 0x87 | setinterrupt | Falcon-TOS |
| 136 | 0x88 | buffoper | Falcon-TOS |
| 137 | 0x89 | dsptristate | Falcon-TOS |
| 138 | 0x8A | gpio | Falcon-TOS |
| 139 | 0x8B | devconnect | Falcon-TOS |
| 140 | 0x8C | sndstatus | Falcon-TOS |
| 141 | 0x8D | buffptr | Falcon-TOS |
| 150 | 0x96 | VsetMask | TOS |
| 159 | 0xBF | VideoCtrl | Milan |
| 160 | 0xA0 | CacheCtrl | Milan |
| 161 | 0xA1 | WdgCtrl | Milan |
| 162 | 0xA2 | ExtRsConf | Milan |
| 165 | 0xA5 | WavePlay | SAM |
| 194 | 0xC2 | GetScreenDescriptor | Crazy-Dots |
| 195 | 0xC3 | ResetScreen | Crazy-Dots |
| 196 | 0xC4 | GetNumberofPModes | Crazy-Dots |
| 197 | 0xC5 | GetPMode | Crazy-Dots |
| 198 | 0xC6 | ReadMode | Crazy-Dots |
| 199 | 0xC7 | CopyModeToActiveMode | Crazy-Dots |
| 200 | 0xC8 | ActiveModeNumber | Crazy-Dots |
| 201 | 0xC9 | GetActiveModeDesc | Crazy-Dots |
| 202 | 0xCA | GetRegisterbase | Crazy-Dots |
| 203 | 0xCB | GetFeatures | Crazy-Dots |
| 204 | 0xCC | GetActiveFeatures | Crazy-Dots |
| 249 | 0xF9 | Set Hatari CPU frequency | Hatari DHS version only |
| 250 | 0xFA | Dump all registers to console | Hatari DHS version only |
| 251 | 0xFB | Enter Hatari debug UI | Hatari DHS version only |
| 252 | 0xFC | Stop a cycle counter | Hatari DHS version only |
| 253 | 0xFD | Start or restart a cycle counter | Hatari DHS version only |
| 254 | 0xFE | Debug output to console | Hatari DHS version only |
| 255 | 0xFF | Change Emulator Options (DHS version) | Hatari and DHS version |
| 299 | 0x12B | Install PCI Bios | ct60 |
| 300 | 0x12C | find_pci_device | PCI-BIOS V2.00 |
| 301 | 0x12D | find_pci_classcode | PCI-BIOS V2.00 |
| 302 | 0x12E | read_config_byte | PCI-BIOS |
| 303 | 0x12F | read_config_word | PCI-BIOS |
| 304 | 0x130 | read_config_longword | PCI-BIOS |
| 305 | 0x131 | fast_read_config_byte | PCI-BIOS |
| 306 | 0x132 | fast_read_config_word | PCI-BIOS |
| 307 | 0x133 | fast_read_config_longword | PCI-BIOS |
| 308 | 0x134 | write_config_byte | PCI-BIOS |
| 309 | 0x135 | write_config_word | PCI-BIOS |
| 310 | 0x136 | write_config_longword | PCI-BIOS |
| 311 | 0x137 | hook_interrupt | PCI-BIOS |
| 312 | 0x138 | unhook_interrupt | PCI-BIOS |
| 313 | 0x139 | special_cycle | PCI-BIOS |
| 314 | 0x13A | get_routing | PCI-BIOS |
| 315 | 0x13B | set_interrupt | PCI-BIOS |
| 316 | 0x13C | get_resource | PCI-BIOS |
| 317 | 0x13D | get card used | PCI-BIOS |
| 318 | 0x13E | set card used | PCI-BIOS |
| 319 | 0x13F | read mem byte | PCI-BIOS |
| 320 | 0x140 | read mem word | PCI-BIOS |
| 321 | 0x141 | read mem longword | PCI-BIOS |
| 322 | 0x142 | fast read mem byte | PCI-BIOS |
| 323 | 0x143 | fast read mem word | PCI-BIOS |
| 324 | 0x144 | fast read mem longword | PCI-BIOS |
| 325 | 0x145 | write mem byte | PCI-BIOS |
| 326 | 0x146 | write mem word | PCI-BIOS |
| 327 | 0x147 | write mem longword | PCI-BIOS |
| 328 | 0x148 | read io byte | PCI-BIOS |
| 329 | 0x149 | read io word | PCI-BIOS |
| 330 | 0x14A | read io longword | PCI-BIOS |
| 331 | 0x14B | fast read io byte | PCI-BIOS |
| 332 | 0x14C | fast read io word | PCI-BIOS |
| 333 | 0x14D | fast read io longword | PCI-BIOS |
| 334 | 0x14E | write io byte | PCI-BIOS |
| 335 | 0x14F | write io word | PCI-BIOS |
| 336 | 0x150 | write io longword | PCI-BIOS |
| 337 | 0x151 | get_machine_id | PCI-BIOS |
| 338 | 0x152 | get pagesize | PCI-BIOS |
| 339 | 0x153 | virt to bus | PCI-BIOS |
| 340 | 0x154 | bus to virt | PCI-BIOS |
| 341 | 0x155 | virt to phys | PCI-BIOS |
| 342 | 0x156 | phys to virt | PCI-BIOS |
| 350 | 0x15E | Dma_setbuffer | ct60 |
| 351 | 0x15F | Dma_buffoper | ct60 |
| 352 | 0x160 | Read_mailbox | ct60 |
| 353 | 0x161 | Write_mailbox | ct60 |
| 400 | 0x190 | vdxGetVersion | ct60 |
| 401 | 0x191 | vdxProbe | ct60 |
| 402 | 0x192 | vdxInit | ct60 |
| 403 | 0x193 | vdxDestroy | ct60 |
| 404 | 0x194 | vdxGetCapability | ct60 |
| 405 | 0x195 | vdxQueryFourcc | ct60 |
| 406 | 0x196 | vdxConfigPlayback | ct60 |
| 407 | 0x197 | vdxPlaybackOn | ct60 |
| 408 | 0x198 | vdxPlaybackOff | ct60 |
| 409 | 0x199 | vdxPlaybackFrameSelect | ct60 |
| 410 | 0x19A | vdxGetGrKeys | ct60 |
| 411 | 0x19B | vdxSetGrKeys | ct60 |
| 412 | 0x19C | vdxPlaybackGetEq | ct60 |
| 413 | 0x19D | vdxPlaybackSetEq | ct60 |
| 414 | 0x19E | vdxPlaybackGetDeint | ct60 |
| 415 | 0x19F | vdxPlaybackSetDeint | ct60 |
| 416 | 0x1A0 | vdxPlaybackCopyFrame | ct60 |
| 417 | 0x1A1 | vdxQueryDMAStatus | ct60 |
| 420 | 0x1A4 | InitVideo | ct60 |
| 500 | 0x1F4 | StarTrack | SWE |
| 555 | 0x22B | Trapper | Trapper |
| 3178 | 0x0c6a | undocumented | ct60 |
| 3179 | 0x0c6b | undocumented | ct60 |
| 3180 | 0x0c6c | undocumented | ct60 |
| 3181 | 0x0c6d | undocumented | ct60 |
| 4200 | 0x1068 | Oscanis | OverScan |
| 4201 | 0x1069 | Oscantab | OverScan |
| 4202 | 0x106A | Oscanphy | OverScan |
| 4203 | 0x106B | Oscanscr | OverScan |
| 4204 | 0x106C | Oscanvb | OverScan |
| 4205 | 0x106D | Oscanpatch | OverScan |
| 4206 | 0x106E | Oscanswitch | OverScan |
| 17226 | 0x434A | CJar | Cookie Jar Manager |
| 31000 | 0x7918 | CHECKinst | MATRIX |
| 31001 | 0x7919 | GETscreen | MATRIX |
| 31002 | 0x791A | GETboard | MATRIX |
| 50698 | 0xC60A | ct60_read_core_temperature | ct60 |
| 50699 | 0xC60B | ct60_rw_parameter | ct60 |
| 50700 | 0xC60C | ct60_cache | ct60 |
| 50701 | 0xC60d | ct60_flush_cache | ct60 |
| 50702 | 0xC60e | ct60_vmalloc | ct60 |
See also: XBIOS GEMDOS function list BIOS function list