DIGITAL RESEARCH TM CP/M Operating System Manual CP/M ...

More documents

Recommendations

Info

1.6 Transient Commands CP/M Operating System Manual The actual devices attached to any particular computer system are driven by subroutines in the BIOS portion of CP/M. Thus, the logical RDR: device, for example, could actually be a high speed reader, teletype reader, or cassette tape. To allow some flexibility in device naming and assignment, several physical devices are defined in Table 1-3. Table 1-3. Physical Devices Device Meaning TTY: Teletype device (slow speed console) CRT: Cathode ray tube device (high speed console) BAT: Batch processing (console is current RDR:, output goes to current LST: device) UC1: User-defined console PTR: Paper tape reader (high speed reader) UR1: User-defined reader #1 UR2: User-defined reader #2 PTP: Paper tape punch (high speed punch) UP1: User-defined punch #1 UP2: User-defined punch #2 LPT: Line printer UL1: User-defined list device #1 1-17
1.6 Transient Commands CP/M Operating System Manual It is emphasized that the physical device names might not actually correspond to devices that the names imply. That is, you can implement the PTP: device as a cassette write operation. The exact correspondence and driving subroutine is defined in the BIOS portion of CP/M. In the standard distribution version of CP/M, these devices correspond to their names on the MDS 800 development system. The command, STAT VAL: produces a summary of the available status commands, resulting in the output: Temp R/O Disk d:$R/O Set Indicator: filename.typ $R/O $R/W $SYS $DIR Disk Status: DSK: d:DSK Iobyte Assign: which gives an instant summary of the possible STAT commands and shows the permissible logical-to-physical device assignments: CON:=TTY:CRT:BAT:UCI: RDR:=TTY:PTR:URI:UR2: PUN:=TTY:PTP:UP1:UP2: LST:=TTY:CRT:LPT:ULI: The logical device to the left takes any of the four physical assignments shown to the right. The current logical-to-physical mapping is displayed by typing the command: STAT DEV: This command produces a list of each logical device to the left and the current corresponding physical device to the right. For example, the list might appear as follows: CON:=CRT: RDR:=URl: PUN:=PTP: LST:=TTY: 1-18
Page 1 and 2: The CP/M Editor CP/M Features and F
Page 3 and 4: 1 CP/M Features and Facilities Tabl
Page 5 and 6: 4 CP/M Dynamic Debugging Tool Table
Page 7 and 8: Table of Contents (continued) 3-7 D
Page 9 and 10: CP/M also supports ED, a powerful c
Page 11 and 12: 1.1 Introduction CP/M Operating Sys
Page 13 and 14: 1.2 Functional Description CP/M Ope
Page 15 and 16: 1.3 Switching Disks CP/M Operating
Page 17 and 18: 1.4 Built-in Commands CP/M Operatin
Page 19 and 20: 1.4 Built-in Commands CP/M Operatin
Page 21 and 22: 1.5 Line Editing and Output Control
Page 23: 1.6 Transient Commands CP/M Operati
Page 27 and 28: 1.6 Transient Commands CP/M Operati
Page 53 and 54: 1.7 BDOS Error Messages CP/M Operat
Page 55 and 56: 1.8 Operation of CP/M on the MDS CP
Page 57 and 58: 2.1 Introduction to ED CP/M Operati
Page 73 and 74: 2.2 ED Error Conditions CP/M Operat
Page 75 and 76:
2.3 Control Characters and Commands
Page 77 and 78:
2.3 Control Characters and Commands
Page 79 and 80:
3.1 Introduction CP/M Operating Sys
Page 81 and 82:
3.2 Program Format CP/M Operating S
Page 83 and 84:
3.3 Forming the Operand CP/M Operat
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
3.4 Assembler Directives CP/M Opera
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
3.5 Operation Codes CP/M Operating
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
3.7 A Sample Session CP/M Operating
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Following the sign-on message, DDT
Page 113 and 114:
Page 115 and 116:
4.2 DDT Commands CP/M Operating Sys
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
4.4 A Sample Program CP/M Operating
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
5.2 Call Conventions CP/M Operating
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
5.3 A Sample Copy Program CP/M Oper
Page 175 and 176:
5.3 A Sample Copy Program CP/M Oper
Page 177 and 178:
5.4 A Sample File Dump Utility CP/M
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
5.5 A Sample Random Access Program
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
5.5 System Function Summary CP/M Op
Page 193 and 194:
Page 195 and 196:
6.2 First-level Regeneration CP/M O
Page 197 and 198:
6.2 First-level Regeneration CP/M O
Page 199 and 200:
6.3 Second-level Regeneration CP/M
Page 201 and 202:
6.3 Second-level Regeneration CP/M
Page 203 and 204:
6.4 Sample GETSYS and PUTSYS CP/M O
Page 205 and 206:
6.5 Disk Organization CP/M Operatin
Page 207 and 208:
6.6 BIOS Entry Points CP/M Operatin
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
6.7 A Sample BIOS CP/M Operating Sy
Page 219 and 220:
6.9 Reserved Locations in Page Zero
Page 221 and 222:
6.10 Disk Parameter Tables CP/M Ope
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
6.11 The DISKDEF Macro Library CP/M
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
Appendix A : The MDS-800 BIOS CP/M
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
Page 245 and 246:
Page 247 and 248:
Appendix B : A Sekletal CBIOS CP/M
Page 249 and 250:
Page 251 and 252:
Page 253 and 254:
Page 255 and 256:
Appendix C : A Skeletal GETSYS/PUTS
Page 257 and 258:
Appendix D : MDS-800 Cold Start Loa
Page 259 and 260:
Appendix D : MDS-800 Cold Start Loa
Page 261 and 262:
Appendix E : A Skeletal Cold Start
Page 263 and 264:
Appendix F : CP/M Disk Definition L
Page 265 and 266:
Page 267 and 268:
Page 269 and 270:
Appendix G : Blocking and Deblockin
Page 271 and 272:
Page 273 and 274:
Page 275 and 276:
Page 277 and 278:
Page 279 and 280:
Appendix H : Glossary CP/M Operatin
Page 281 and 282:
Page 283 and 284:
Page 285 and 286:
Page 287 and 288:
Page 289 and 290:
Page 291 and 292:
Page 293 and 294:
Page 295 and 296:
Page 297 and 298:
Appendix I : CP/M Error Messages CP
Page 299 and 300:
Page 301 and 302:
Page 303 and 304:
Page 305 and 306:
Page 307 and 308:
Page 309 and 310:
Page 311 and 312:
Page 313 and 314:
Page 315 and 316:
Index CP/M Operating System Manual
Page 317:
Index CP/M Operating System Manual
show all

DIGITAL RESEARCH TM CP/M Operating System Manual CP/M ...

Create successful ePaper yourself

Delete template?

Save as template?