DosDebug Commands
| Number | Name | Description |
|---|---|---|
| 0 | DBG_C_Null | Null |
| 1 | DBG_C_ReadMem | Read Word |
| 1 | DBG_C_ReadMem_I | Read Word |
| 2 | DBG_C_ReadMem_D | Read Word (same as 1) |
| 3 | DBG_C_ReadReg | Read Register Set |
| 4 | DBG_C_WriteMem | Write Word |
| 4 | DBG_C_WriteMem_I | Write Word |
| 5 | DBG_C_WriteMem_D | Write Word (same as 4) |
| 6 | DBG_C_WriteReg | Write Register Set |
| 7 | DBG_C_Go | Go |
| 8 | DBG_C_Term | Terminate |
| 9 | DBG_C_SStep | Single Step |
| 10 | DBG_C_Stop | Stop |
| 11 | DBG_C_Freeze | Freeze Thread |
| 12 | DBG_C_Resume | Resume Thread |
| 13 | DBG_C_NumToAddr | Object Number to Address |
| 14 | DBG_C_ReadCoRegs | Read Coprocessor Registers |
| 15 | DBG_C_WriteCoRegs | Write Coprocessor Registers |
| 16 | Reserved | Reserved |
| 17 | DBG_C_ThrdStat | Get Thread Status |
| 18 | DBG_C_MapROAlias | Map Read-Only Alias |
| 19 | DBG_C_MapRWAlias | Map Read-Write Alias |
| 20 | DBG_C_UnMapAlias | Unmap Alias |
| 21 | DBG_C_Connect | Connect to Debuggee |
| 22 | DBG_C_ReadMemBuf | Read Memory Buffer |
| 23 | DBG_C_WriteMemBuf | Write Memory Buffer |
| 24 | DBG_C_SetWatch | Set Watchpoint |
| 25 | DBG_C_ClearWatch | Clear Watchpoint |
| 26 | DBG_C_RangeStep | Range Step |
| 27 | DBG_C_Continue | Continue |
| 28 | DBG_C_AddrToObject | Get Memory Object Information |
| 29 | DBG_C_XchngOpcode | Exchange Opcode |
| 30 | DBG_C_LinToSel | Translate Linear Address to Segment:Offset |
| 31 | DBG_C_SelToLin | Translate Segment:Offset to Linear Address |
| 33 | DBG_C_Attach | Attach to a Process Command |
| 34 | DBG_C_Detach | Detach from a Process under Debug Command |
| 35 | DBG_C_RegDebug | JIT (Just-in-Time) Debugger Registration/De-Registration Command |
| 36 | DBG_C_QueryDebug | Query JIT (Just-in-Time) Debugger Registered Command |
Not all fields must be defined for every DosDebug command. The same field can have a different meaning in different DosDebug commands. For each command, fields in the Debug Buffer structure that are not listed are not useful for that command, but may be modified by DosDebug as required.