Octagon Systems XE-700, Справочное руководство

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returns 2)
AH Minor version number (e.g. Version 2.10
returns 10)
BL Version letter (e.g. Version 2.10B returns
‘B’)
Carry flag set if error
AL Error code
Comments: This function returns the version number of the
BIOS extension
Programming example:
/* Inline assembly code for Borland C++ 3.1 */
unsigned char majorVersion;
unsigned char minorVersion;
unsigned char versionLetter;
/* Inline assembly code for Borland C++ 3.1 */
asm {
MOV AX, 0fb00h
MOV DX, 0ffffh
INT 17h
MOV majorVersion, AL
MOV minorVersion, AH
MOV versionLetter, BL
}
System functions
The XE–700 has two additional INT 17 functions; Return CPU Type and Get
Functions Implemented.
Return CPU Type
This function returns the CPU type and the system clock speed.
Function: 0fbh
Sub-Function: 01h
Purpose: To obtain the CPU type and clock speed
Calling Registers: CL 01h
AL 01h
DX 0ffffh
Return Registers: Carry flag cleared if successful
A1 Hclock speed
0x00 = 25 MHz
0x04 = 50 MHz
0x08 = 60 MHz
0x0C = 66 MHz
CL 0x01 STPC Atlas
0x00 not Atlas
CH Clock multiplier
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