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61 lines
1.0 KiB
Plaintext
61 lines
1.0 KiB
Plaintext
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title 'List Device module'
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;******************************************
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; *
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; LIST DEVICE MODULE *
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; Last changed : 1/30/84 *
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; *
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;******************************************
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dseg
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public lcb0
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extrn oq7desc:byte
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extrn oq8desc:byte
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cseg
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public io_listst, io_list
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extrn serial_out:near
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;=========
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io_listst: ; Function 3: List Status
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;=========
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; input: DL = list device number
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; output: AL = 0ffh if ready
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; = 000h if not ready
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xor al,al
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ret ;back to caller
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;=======
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io_list: ; Function 4: List Output
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;=======
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; input: CL = character
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; dl = list device number
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; output: None
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cmp dl, 0 ! je list0
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mov bx, offset oq7desc
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jmps list1
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list0:
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mov bx, offset oq8desc
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list1:
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call serial_out
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ret
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dseg
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lcb0 dw 0,0,0,0 ;reserved
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db 0ffh,0ffh ;mimic, msource
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lcb1 dw 0,0,0,0 ;reserved
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db 0ffh,0ffh ;mimic, msource
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end
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