setdrv

.PAGE 'SET DRIVE'
;SET 1ST DRIVE AND TABLE POINTERS
ONEDRV	LDA F2CNT
	STA F1CNT
	LDA #1
	STA F2CNT
	STA F2PTR
.SKIP
;SET UP ALL DRIVES FROM F2CNT
ALLDRS	LDY LSTDRV      ;SET UP DRIVE #'S...
	LDX #0          ;...INTO FILE ENTRY TABLE... 
AD10	STX F1PTR       ;...ON SECTOR PTR BYTE
	LDA FILTBL,X
	JSR SETDRV
	LDX F1PTR
	STA FILTBL,X    ;INCR PTR PAST ":"
	TYA             ;BITS REP DRIVES
	STA FILDAT,X    ;BIT7: DEFAULT
	INX             ;BIT0: DRIVE #
	CPX F2CNT
	BCC AD10
	RTS
.SKIP
;SET DRIVE NUMBER
;  DETERMINES DRIVE # FROM TEXT OR
;  USES DEFAULT (-D)
;  A: IN,OUT: INDEX, CMDBUF
;  Y: IN: DEFAULT DRIVE
;    OUT: DRIVE NUMBER, - IF DEFAULT
.SKIP
SETDRV	TAX             ;X= CMDBUF INDEX
	LDA #':
	CMP CMDBUF+1,X  ;FOR XXX:FILE
	BEQ SD40        ;      ^ 
	CMP CMDBUF,X    ;FOR XXX:FILE
	BNE SD50        ;       ^
	INX             ;FOUND ":", SO...
SD20	TYA             ;DRIVE= DEFAULT
SD22	AND #1          ;CONVERT TO NUMERIC
SD24	TAY             ;RESTORE DRIVE
	TXA             ;A=INDEX & XXXXFILE
	RTS             ;              ^
.SKIP 2
SD40	LDA CMDBUF,X
	INX             ; XXX:FILE
	INX             ;   --^
	CMP #'0         ;FOR XX0:FILE
	BEQ SD22        ;        ^
	CMP #'1         ;FOR XX1:FILE
	BEQ SD22        ;        ^
	BNE SD20        ;CMD:FILE OR XX,:FILE
SD50	=* ;    ^           ^
	TYA             ;FOR XXX,FILE OR XX=FILE
	ORA #$80        ;        ^          ^
	AND #$81        ;DRIVE= -DEFAULT
	BNE SD24        ;FINISH TESTING
.SKIP
;SET DRIVE FROM ANY CONFIG.
SETANY	LDA #0
	STA IMAGE
	LDY FILTBL
SA05	LDA (CB),Y
	JSR TST0V1
	BPL SA20
	INY
	CPY CMDSIZ
	BCS SA10
	LDY CMDSIZ
	DEY
	BNE SA05
SA10	DEC IMAGE
	LDA LSTDRV
SA20	AND #1
	STA DRVNUM
	JMP SETLDS
;TOGGLE DRVNUM
TOGDRV	LDA DRVNUM
	EOR #1
	AND #1
	STA DRVNUM
	RTS
.SKIP
;SET PTRS TO ONE FILE STREAM & CHK TYPE
FS1SET	LDY #0
	LDA F1CNT
	CMP F2CNT
	BEQ FS15
	DEC F2CNT
	LDY F2CNT
	LDA FILTBL,Y
	TAY
	LDA (CB),Y
	LDY #NTYPES-1
FS10	CMP TYPLST,Y
	BEQ FS15
	DEY
	BNE FS10
FS15	TYA
	ASL A
	STA TYPFLG
	RTS
.SKIP
;TEST CHAR IN ACCUM FOR "0" OR "1"
TST0V1	CMP #'0
	BEQ T0V1
	CMP #'1
	BEQ T0V1
	ORA #$80
T0V1	AND #$81
	RTS
.END