DOS / Functions / C5


                   INT 21 - Novell NetWare 4.6 - SEMAPHORES

Input	DOS1	N	DOS2	N	DOS3	Y	DOS5	Y	Output
AX	C5h		00h				Error Code		AX
BX							Open Count		BX
CX			Initial Value		Semaphore Handle				CX:DX

DS:DX	Semaphore Name								CF

Open Semaphore

Input	DOS1	N	DOS2	N	DOS3	Y	DOS5	Y	Output
AX	C5h		01h				Error Code		AX
BX									BX
					Semaphore Value (Sign Extended)				CX
CX:DX	Semaphore Handle						Open Count		DX
ES:DI									CF

Examine Semaphore

Input	DOS1	N	DOS2	N	DOS3	Y	DOS5	Y	Output
AX	C5h		02h				Error Code		AX
BX									BX
									CX
CX:DX	Semaphore Handle								DX
BP	Timeout in Timer Ticks								CF

Wait on Semaphore

Input	DOS1	N	DOS2	N	DOS3	Y	DOS5	Y	Output
AX	C5h		03h				Error Code		AX
BX									BX
									CX
CX:DX	Semaphore Handle								DX
ES:DI									CF

Signal Semaphore

Input	DOS1	N	DOS2	N	DOS3	Y	DOS5	Y	Output
AX	C5h		04h				Error Code		AX
BX									BX
									CX
CX:DX	Semaphore Handle								DX
ES:DI									CF

Close Semaphore

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