BBC OSWORD INDEX
			================

This is an index of OSWORD calls which I am aware of. Please send mail to
ajcd@dcs.ed.ac.uk if you have any additions to this list.

Update History
--------------
21-Jun-1993: Angus Duggan, initial list of &00-&0F, &4E..&5E, &7D..&7F ...

28-Feb-1997: J.G.Harston, Re-edited, added &10-&16, &20, &42, &43, &45,
	&5A, &60, &62-&64, &70-&73, &7A, &7B, &BE, &FA, &FE, &FF.
04-Oct-1998: J.G.Harston, updated &20, added &51, &89, &8A, &C8, &FB, &FC,
	&FD.

Hex Dec Function					Appears in
------------------------------------------------------------------------------
&00  0  Input line					Acorn MOS 1.20
&01  1  Read system clock (=TIME)			Acorn MOS 1.20
&02  2  Write system clock (TIME=)			Acorn MOS 1.20
&03  3  Read interval timer				Acorn MOS 1.20
&04  4  Write interval timer				Acorn MOS 1.20
&05  5  Read I/O processor memory			Acorn MOS 1.20
&06  6  Write I/O processor memory			Acorn MOS 1.20
&07  7  Generate a sound				Acorn MOS 1.20
&08  8  Define a sound envelope 			Acorn MOS 1.20
&09  9  Read screen pixel value 			Acorn MOS 1.20
&0A 10  Read character definition			Acorn MOS 1.20
&0B 11  Read palette					Acorn MOS 1.20
&0C 12  Write palette					Acorn MOS 1.20
&0D 13  Read last two graphics positions		Acorn MOS 1.20
&0E 14  Reads CMOS clock				Acorn Master MOS
&0F 15  Write CMOS clock				Acorn Master MOS
&10 16  Network transmit				NFS
&11 17  Open or read network receive block		NFS
&12 18  Read argument block and restore protection mask NFS
&13 19  Read/Write station infomation			NFS
&14 20  Various NFS/Network functions			NFS
&15 21  Read/Write mouse and pointer infomation	Arthur
&16 22  Set screen base start				Arthur
&17 23
&18 24
&19 25
&1A 26
&1B 27
&1C 28
&1D 29
&1E 30
&1F 31
&20 32  Acorn User Windowing System			AUWIN
&21 33
&22 34
&23 35
&24 36
&25 37
&26 38
&27 39
&28 40 \
&29 41  \
&2A 42   \
&2B 43    \
&2C 44     } Allocated to Millipede Prisma 2
&2D 45     } Graphics Processor
&2E 46    /
&2F 47   /
&30 48  /
&31 49 /
&32 50
&33 51
&34 52
&35 53
&36 54  Stop Press Routines				Stop Press
&37 55
&38 56
&39 57
&3A 58
&3B 59
&3C 60
&3D 61
&3E 62
&3F 63
&40 64  Read mouse pointer and button state		AMX Super Art
&41 65  Miscellaneous graphics commands 		AMX Super Art
&42 66  Sideways RAM transfer				1770 DFS
&43 67  Load/Save into/from sideways Ram		1770 DFS
&44 68  AMX Super Art Rom commands			AMX Super Art
&45 69  Move/Swap memory				Aries B32
&46 70  Allocated to BBC soft, probably unused.
&47 71
&48 72
&49 73
&4A 74
&4B 75
&4C 76  Extended communications control 		TQCOM
&4D 77  -
&4E 78  Initialise heap 				DVR
&4F 79  Claim area from heap				DVR
&50 80  Release area to heap				DVR 
&51 81  Get maximum heap block size			DVR
&51 81  SEHK Support					SEHK
&52 82  Initialise file buffer				DVR
&53 83  Finish with file buffer 			DVR
&54 84  Flush file buffer				DVR
&55 85  Get bytes from file buffer			DVR
&56 86  Put bytes to file buffer			DVR
&57 87  Create new binary tree node			DVR
&58 88  Insert node into binary tree			DVR
&59 89  Delete node from binary tree			DVR
&5A 90  Find node in binary tree			DVR
&5A 90  HADFS Sector read/write/access			HADFS
&5B 91  Traverse binary tree				DVR
&5C 92  Balance binary tree				DVR
&5D 93  Parse option patterns				DVR
&5E 94  Get string with control character interpretation DVR
&5F 95  "Monitor reads across tube"			BBC Soft
&60 96  Read Videodisk MSN and status byte		VFS
&61 97  Read free space on VFS disk			VFS
&62 98  Access LVROM controller 			VFS
&63 99  Read last VFS error number			VFS
&64 100 Read current F-code				VFS
&65 101
&66 102
&67 103
&68 104
&69 105
&6A 106
&6B 107
&6C 108
&6D 109
&6E 110 Read byte from shadow Ram board 		Watford 32K
&6F 111 Write byte to shadow Ram board			Watford 32K
&70 112 Read master sequence number and status byte	ADFS
&71 113 Read free space on disc 			ADFS
&72 114 Read/Write MFM sectors				ADFS
&73 115 Read information about last error		ADFS
&74 116
&75 117
&76 118
&77 119
&78 120
&79 121
&7A 122 Teletext commands				Teletext
&7B 123 Modem comands					Prestel Adaptor
&7B 123 Modem commands					COMMAND
&7B 123 Move a block of memory				HDFS
&7C 124 Multiple track single density FDC command	HDFS
&7D 125 Read cycle number of disc			DFS, HDFS
&7E 126 Read disc (or directory) size			DFS, HDFS
&7F 127 Single track single density FDC command 	DFS, HDFS
&80 128 "IEEE"
&81 129 ?
&82 130 Read/Write parameters				Cambridge ring
&83 131 Data transmission				Cambridge ring
&84 132 Ring polling					Cambridge ring
&85 133
&86 134
&87 135
&88 136
&89 137 Read teletext pixel				Dump Out 3
&8A 138 Set teletext pixel				Dump Out 3
&8B 139
&8C 140
&8D 141
&8E 142
&8F 143
&90 144 "Service interface - Network"
&91 145
&92 146
&93 147
&94 148
&95 149
&96 150
&97 151
&98 152
&99 153
&9A 154
&9B 155
&9C 156
&9D 157
&9E 158
&9F 159
&A0 160 "Isolated word recogniser"
&A1 161
&A2 162
&A3 163
&A4 164
&A5 165
&A6 166
&A7 167
&A8 168
&A9 169
&AA 170
&AB 171
&AC 172
&AD 173
&AE 174
&AF 175
&B0 176
&B1 177
&B2 178
&B3 179
&B4 180
&B5 181
&B6 182
&B7 183
&B8 184
&B9 185
&BA 186
&BB 187
&BC 188
&BD 189
&BE 190 Disassemble data				DIS
&BF 191
&C0 192
&C1 193
&C2 194
&C3 195
&C4 196
&C5 197
&C6 198
&C7 199
&C8 200 SWI Operation on Host ARM			JGH
&C9 201
&CA 202
&CB 203
&CC 204
&CD 205
&CE 206
&CF 207
&D0 208
&D1 209
&D2 210
&D3 211
&D4 212
&D5 213
&D6 214
&D7 215
&D8 216
&D9 217
&DA 218
&DB 219
&DC 220
&DD 221
&DE 222
&DF 223
&E0 224
&E1 225
&E2 226
&E3 227
&E4 228
&E5 229
&E6 230
&E7 231
&E8 232
&E9 233
&EA 234
&EB 235
&EC 236
&ED 237
&EE 238
&EF 239
&F0 240
&F1 241
&F2 242
&F3 243
&F4 244
&F5 245
&F6 246
&F7 247
&F8 248
&F9 249
&FA 250 Data transfer over Tube 			80x86 Tube OS
&FB 251 WD1770/2 Floppy Disk Control			80x86 DOS
&FC 252 DOS CRTC Control				80x86 DOS
&FD 253 -
&FE 254 DOS Text output (unimplemented) 		80x86 DOS
&FE 254 Z80 SP Disc Read				Z80 CP/M
&FF 255 DOS fast screen control 			80x86 DOS
&FF 255 Z80 Data transfer over Tube			Z80 Tube OS