Intel SRMK2 - Server Platform - 0 MB RAM Technical Specifications page 72

Table 49: System information (INT15h) functions
The following sections describe each function, showing the values in processor registers on call
and return.
7.3.4.1 New Cache Services
Call With
AH = Dah
AL = 12h
Returns
AH = bit 0
AH = bit 1
CX = bit 15
= bits 14::0
AH = 86h
!
NOTE
The SRMK2 does not support switching from writeback to write-through modes during runtime. This function is not
supported if the processor is not in real mode.
Intel ® SRMK2 Internet Server Technical Product Specification
Function (AX) Description
DA12h New cache services
DA8Ch Get version information
DA92h Processor information
Table 50: New Cache Services
CL = 0
CL = 1
CL = 2
CL = 3
CL = 4
= 0
= 1
= 0
= 1
CF = 1,
Description
Disable Cache
Enable Cache
Read Cache Status
Set Writeback Mode
Set Write-through Mode
Description
Disable Cache
Enable Cache
Write-through Mode
Write-back Mode
Size Information Valid Flag
Size of L2 Cache in 32KB
blocks
Function not supported
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