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83 lines
1.4 KiB
Plaintext
83 lines
1.4 KiB
Plaintext
NEW
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PREFIX /A2OSX.BUILD
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AUTO 4,1
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*/--------------------------------------
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* # GetDevByID.A
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* ## IN:
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* A = DevID
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* ## OUT:
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* CC = OK, CS = ERROR
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* Y,A = DEVSLOT
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* note: X Unmodified
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*\--------------------------------------
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K.GetDevByID.A cmp DevMgr.Count
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bcs K.GetDevDNF
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asl
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asl
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asl
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asl
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php
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clc
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adc #Dev.Table
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tay
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plp
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lda #0
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adc /Dev.Table
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rts CC
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*/--------------------------------------
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* # GetDevByName.YA
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* ## IN:
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* Y,A = Ptr to device name (C-String)
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* ## OUT:
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* CC = OK, CS = ERROR
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* X = DEVID
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* Y,A = DEVSLOT
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*\--------------------------------------
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K.GetDevByName.YA
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>STYA ZPPtr1
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>LDYAI Dev.Table+S.DEV.NAME
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>STYA ZPPtr2
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ldx #0
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.1 ldy #$ff
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.2 iny
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lda (ZPPtr1),y
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cmp (ZPPtr2),y
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bne .3
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ora (ZPPtr2),y Both char are 0 ?
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bne .2 no....loop
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lda ZPPtr2
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sec
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sbc #S.DEV.NAME
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tay
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lda ZPPtr2+1
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sbc /S.DEV.NAME
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clc
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rts
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.3 lda ZPPtr2
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clc
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adc #S.DEV
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sta ZPPtr2
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bcc .4
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inc ZPPtr2+1
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.4 inx
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cpx DevMgr.Count
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bne .1
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K.GetDevDNF lda #MLI.E.NODEV CS from cpx/beq
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rts
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*--------------------------------------
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MAN
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SAVE /A2OSX.SRC/SYS/KERNEL.S.DEV
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LOAD /A2OSX.SRC/SYS/KERNEL.S
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ASM
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