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cf.a80
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cf.a80
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MODULE cf
// output
// A - error number - Z - OK
// HL - text of error
// IX - 512 bytes of indentify data; examples below
IDENT ld ix,BUFFER
xor a //only master
; ld a,%00000000
call IDENTIFY
ld hl,TEXT16
push af
jr z,TISKSTATUS1 ; OK
ld hl,TEXT11
cp 255
jp z,TISKSTATUS1
ld hl,TEXT14
cp 6
jp z,TISKSTATUS1
ld hl,TEXT13
cp 3
jp z,TISKSTATUS1
ld hl,TEXT12
dec a
jp z,TISKSTATUS1
ld hl,TEXT15
TISKSTATUS1 pop af
// A - error number
// HL - text of error
/* examples
MASTERINFO
ld hl,TEXT4
ld bc,#0602
call T42_TEXT
ld hl,TEXT5
ld bc,#0702
call T42_TEXT
ld hl,TEXT6
ld bc,#0802
call T42_TEXT
ld hl,TEXT7
ld bc,#0902
call T42_TEXT
ld hl,TEXT101
ld bc,#0A02
call T42_TEXT
ld hl,TEXT102
ld bc,#0A15
call T42_TEXT
;model
ld hl,BUFFER+54
ld b,40
call PROHOD
set 7,(ix+84)
ld bc,#0609
call T42_TEXT
;firmware
ld hl,BUFFER+46
ld b,8
call PROHOD
set 7,(ix+53)
ld bc,#070C
call T42_TEXT
;serial number
ld hl,BUFFER+20
ld b,20
call PROHOD
set 7,(ix+39)
ld bc,#0811
call T42_TEXT
;LBA
ld hl,TEXT_NO
bit 1,(ix+99)
jr z,L1
ld hl,TEXT_YES
L1 ld bc,#090D
call T42_TEXT
;DMA
ld hl,TEXT_NO
bit 0,(ix+99)
jr z,L2
ld hl,TEXT_YES
L2 ld bc,#0925
call T42_TEXT
;CHS
;Cylinders
ld l,(ix+2)
ld h,(ix+3)
ld bc,#0A09
call NUMBER4
;Heads
ld l,(ix+6)
ld h,(ix+7)
ld bc,#0A0f
call NUMBER1
;Sectors
ld l,(ix+12)
ld h,(ix+13)
ld bc,#0A12
call NUMBER1
;capacity
ld l,(ix+12)
ld h,(ix+13)
ld e,(ix+6)
ld d,(ix+7)
push ix ; rutina nasob pouziva IX
call nasobeniHLDE.nasob
pop ix
ld e,(ix+2)
ld d,(ix+3)
push ix
call nasobeniHLDE.nasob
;vysledek je v IXHL
ld l,h
ld a,xl
ld h,a
ld e,hx
;delime 256 vysledek EHL
ld b,3
trikrat1
srl e
rr h
rr l
djnz trikrat1
;delime tremi
ld bc,#0A1F
call NUMBER4
pop ix
;LBA 48Bits
inc hx
ld hl,TEXT_NO
bit 2,(ix-83)
jr z,L3
ld hl,TEXT_YES
L3 ld bc,#091C
call T42_TEXT
Endinentify
*/
ret
; navrat
;------------------------------
TEXT11 dc 16,7,"disk time out "
TEXT12 dc 16,7,"status b0 error "
TEXT13 dc 16,7,"DRQ error "
TEXT14 dc 16,7,"drive not ready "
TEXT15 dc 16,7,"other error "
TEXT16 db 16,7,"OK "
TEXT_YES dc 16,7,"Yes"
TEXT_NO dc 16,7,"No"
/*
;------------------------------
;TISK CISLA BC-POZICE HL-HODNOT
;TISKNE CISLO TYPU INTEGER
;STAR-RUTINA TISKU 1 ZNAKU NA
;POZICI BC (0,0)
NUMBER4 ld de,-10000
call NUM_JED
NUMBER3 ld de,-1000
call NUM_JED
NUMBER2 ld de,-100
call NUM_JED
NUMBER1 ld de,-10
call NUM_JED
NUMBER0 ld a,l
add a,48
jp T42
NUM_JED xor a
NUM_JED1 add hl,de
jr nc,NUM_PRIC
inc a
jr NUM_JED1
NUM_PRIC sbc hl,de
add a,48
push bc
push hl
call T42
pop hl
pop bc
inc c
ret
*/
;------------------------------
;IDENTIFY:ix-adresa, a-mas/slv
IDENTIFY
or %11100000
ld (ACCMODE0+1),a
call TST_BSY
ret nz
ACCMODE0 ld a,0
out (P_HEA),a
ld a,#EC
out (P_COM),a
call TST_DR
ret nz
call RD_512
call TST_BSY
;
ret
/*
;fyzicke cteni jednoho LBA sectoru
;ix=adresa, a=mod adresace bit4=master/slave
;cedb= 28 bit lba sector;c-sectornumber,e-cylinderlow,d-cylinderhigh,b-head
LBAREAD
or %11100000
;natvrdo LBA bit6 urcuje, ze se pouzije LBA pristup
ld (HEA_REG+1),a
call TST_BSY
ret nz
HEA_REG ld a,%11100000
or b
; prictou se nejvyssi ctyri bity LBA
out (P_HEA),a
;cislo hlavicky
ld a,1
out (P_HSE),a
;pocet sektoru 1*512B
ld a,c
out (P_NSE),a
;cislo sektoru od 1
ld a,e
out (P_CYL),a
ld a,d
out (P_CYH),a
;cislo cylindru
ld a,#20
out (P_COM),a
call TST_DR
ret nz
call RD_512
call TST_BSY
; ret nz
ret*/
TST_BSY
push hl
ld hl,#0000 ;shorter timeout, was #0000
TST1
dec hl
ld a,l
or h
jr z,TOUT1
P84 in a,(P_COM)
cp 255
jr z,TST1
bit 7,a
jr nz,TST1
pop hl
ret
TOUT1
ld a,255
or a
pop hl
ret
;------------------------------
;test BSY,DRDY,DRQ,ERR statusu
TST_DR
call TST_BSY
ret nz
bit 6,a
jr z,ER6
bit 3,a
jr z,ER3
bit 0,a
jr nz,ER1
ret
ER6 ld a,7
dec a
ret
ER3 ld a,4
dec a
ret
ER1 ld a,1
ret
;------------------------------
RD_512
ld (DMADR1),ix
push hl
ld hl,RD1S
ld bc,RD1L*256+DMA
RDWR1 otir
ld b,#87 ;WR6 enable dma
out (c),b
pop hl
ld bc,512
add hl,bc
ret
;---<DMA_IN>-------------------
RD1S
defb 195 ;WR6 #C3 reset
defb %01111101 ;WR0 A->B, transfer
defw P_DAT ;source port
defw 511 ;lenght
defb %00101100 ;WR1 A-port,A-fixed - Standard Timing
defb %00010000 ;WR2 B-memory, B-increment - Standard Timing
defb %10101101 ;WR4 continuous,
DMADR1 defw 0 ;destination
defb %10010010 ;WR5 ready low,CE/WAIT,stop on end of block
defb #CF ;WR6 load
defb #B3 ;WR6 force ready
RD1L equ $-RD1S
;------------------------------
;prohazuje vyssi a nizsi byte
;zkurveny system
PROHOD
;HL adresa
;B kolik bytu
;MENI: A
push hl
push bc
rrc b
PROHOD1
ld a,(hl)
inc hl
ld c,(hl)
dec hl
ld (hl),c
inc hl
ld (hl),a
inc hl
djnz PROHOD1
pop bc
pop hl
ret
;------------------------------
/*D1LBA defw 0,0,0
D2LBA defw 0,0,0
LEN equ $-32768*/
BUFFER ;equ 25000
block 512,48
;porty HOOD
P_DAT equ 195 ;8'b110xx011
P_ERR equ 167 ;8'b101xx111
P_HSE equ 203 ;8'b110xx011
P_NSE equ 175 ;8'b101xx111
P_CYL equ 211 ;8'b110xx011
P_CYH equ 183 ;8'b101xx111
P_HEA equ 219 ;8'b110xx011
P_COM equ 191 ;8'b101xx111
DMA equ 11
endmodule