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AX = 2535h EBX = direction (00h read registers, 01h write) DS:EDX -> system register record (see #01375)
Return:
CF clear
Note: This call is only available under MS Windows if PHARLAP.386 VDD is installed
Format of Phar Lap system register record: Offset Size Description (Table 01375) 00h DWORD CR0 04h 4 DWORDs DR0,DR1,DR2,DR3 14h 2 DWORDs reserved 1Ch 2 DWORDs DR6,DR7 24h 3 DWORDs reserved
Category: DOS Extenders - Int 21h - P
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