Int 2C/AX=0004h

AX = 0004h
SI = selector
CL = new access mode byte (see #00502)

Return:
CF clear if successful
CF set on error
AX = error code (see #02556)

Note: This function was first introduced with RM386 (RAM-MAN/386) v6.00

See Also: AX=0000h - AX=0002h - AX=0003h - AX=0005h -