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include vpicd.inc VxDcall VPICD_Get_Version mov byte ptr [Major], ah ; major version number mov byte ptr [Minor], al ; minor version number mov [Flags], ebx ; configuration flags mov [MaxIRQ], ecx ; maximum IRQ supported |
The VPICD_Get_Version service returns the VPICD major and minor version numbers.
This service has no parameters.
The carry flag is always clear, and the following registers contain the specified values:
| Register | Value |
| AH | Specifies the major version number for the virtual PIC device. |
| AL | Specifies the minor version number for the virtual PIC device. |
| EBX | Specifies the configuration flag for the PIC. The flag can be the following value: |
| Value | Meaning |
| 1 | System has a master/slave (PC/AT-type) configuration. If this value is not given, the system has a single PIC ( PC/XT-type) configuration. |
| All other values are reserved. | |
| ECX | Specifies the maximum IRQ supported. It is either 07h or 0Fh. |
EAX, EBX, ECX, Flags