IBM 770 User Manual
Get CPU Information
Input Field
Major Function Number - ðð
Minor Function Number - ð1
Parameter 1
Minor Function Number - ð1
Parameter 1
- Reserved
Parameter 2
- Reserved
Parameter 3
- Reserved
Parameter 4
- Reserved
Parameter 5
- Reserved
Output Field
Return Code
- Error status
Auxiliary Return Code - Reserved
Parameter 1
Parameter 1
- Reserved
Parameter 2
- CPU ID
(Bits 15-8) Microprocessor type
(Bits 7-ð) Microprocessor stepping level
= FFFFh : Unknown
(Bits 7-ð) Microprocessor stepping level
= FFFFh : Unknown
Parameter 3
- Clock Information
(Bits 15-8) CPU clock (units: MHz)
= FEh : CPU clock is over 254 MHz
= FFh : Unknown
(parameter 4 is valid)
(Bits 7-ð) Internal clock (units: MHz)
= FEh : Internal clock is over 254 MHz
= FFh : Unknown
(parameter 5 is valid)
= FEh : CPU clock is over 254 MHz
= FFh : Unknown
(parameter 4 is valid)
(Bits 7-ð) Internal clock (units: MHz)
= FEh : Internal clock is over 254 MHz
= FFh : Unknown
(parameter 5 is valid)
Parameter 4
- (Bits 31-16) Reserved
- (Bits 15-ð) CPU clock (units : MHz)
- (Bits 15-ð) CPU clock (units : MHz)
Parameter 5
- (Bits 31-16) Reserved
- (Bits 15-ð) Internal clock (units: MHz)
- (Bits 15-ð) Internal clock (units: MHz)
SMAPI BIOS
B-13