***************************************
*
*   EQUATES GS/OS DIRECT PAGE
*   (GS/OS MANUAL P. 350)
*
DEV_NUM  =     0
CALL_NUM =     DEV_NUM+2
BUF_PTR  =     CALL_NUM+2
SLIST_PTR =    CALL_NUM+2
CLIST_PTR =    CALL_NUM+2
ID_REF   =     BUF_PTR
REQ_CNT  =     BUF_PTR+4
TRAN_CNT =     REQ_CNT+4
BLK_NUM  =     TRAN_CNT+4
BLK_SIZE =     BLK_NUM+4
FST_NUM  =     BLK_SIZE+2
STAT_CODE =    FST_NUM
CTRL_CODE =    FST_NUM
VOL_ID   =     FST_NUM+2
DRVR_CACHE =   VOL_ID+2
CACHE_PTR =    DRVR_CACHE+2
DIB_PTR  =     CACHE_PTR+4
*
*  DRIVER ERROR CODES
*
NO_ERROR =     0
DEV_NOT_FOUND = $10
INVALID_DEV_NUM = $11
BAD_REQ  =     $20
BAD_CODE =     $21
BAD_PARM =     $22
NOT_OPEN =     $23
PRIOR_OPEN =   $24
TABLE_FULL =   $25
NO_RESRC =     $26
IO_ERROR =     $27
NO_DEV   =     $28
DRVR_BUSY =    $29
WR_PROT  =     $2B
BAD_COUNT =    $2C
BAD_BLOCK =    $2D
DISK_SW  =     $2E
OFF_LINE =     $2F
INV_ACCESS =   $4E
RANGE_ERR =    $53
NO_MEM   =     $54
DUP_VOLUME =   $57
NO_BLOCKDEV =  $58
STACK_OVFL =   $5F
DATA_UNAVAIL = $60
*
*  DIB EQUATES
*
LINK_PTR =     $00
ENTRY_PTR =    $04
DEV_CHAR =     $08
BLK_CNT  =     $0A
DEV_NAME =     $0E
SLOT_NUM =     $2E
UNIT_NUM =     $30
VER_NUM  =     $32
DEV_ID_NUM =   $34
HEAD_LINK =    $36
FORWARD_LINK = $38
EXT_DIB_PTR =  $3A
DIB_DEV_NUM =  $3E
*
*
*  OFFSETS IN FORMAT OPTION TABLE
*
F_BLKCNT =     $0E        ; FORMAT BLOCK COUNT
FMT_IL   =     $14        ; FORMAT INTERLEAVE
*
*  SYSTEM SERVICE TABLE EQUATES (GS/OS)
*
DEV_DISPATCHER = $1FC00
CACHE_FIND_BLK = $1FC04
CACHE_ADD_BLK = $1FC08
CACHE_DEL_BLK = $1FC14
CACHE_DEL_VOL = $1FC18
SET_SYS_SPEED = $1FC50
MOVE_INFO =    $1FC70
SET_DISKSW =   $1FC90
SUP_DRVR_DISP = $1FCA4
INSTALL_DRIVER = $1FCA8
DYN_SLOT_ARBITER = $1FCBC
*
*  EQUATES FOR MOVE_INFO CALL
*
MOVEBLKCMD =   $0800
MOVE_SINC_DINC = $0805
*
MOVE_SINC_DDEC = $0809
MOVE_SDEC_DINC = $0806
MOVE_SDEC_DDEC = $080A
*
MOVE_SCON_DCON = $0800
MOVE_SINC_DCON = $0801
MOVE_SDEC_DCON = $0802
*
MOVE_SCON_DINC = $0804
MOVE_SCON_DDEC = $0808
*
*  DMA & SPEED REGISTER
*
SPEEDREG =     $C036
DMA_REG  =     $C037
INT_EN   =     $C041      ; INTERRUPT ENABLE REGISTER
*
*  IDE Commands
*
RESTORCM =     %00010000
SEEKCMD  =     %01110000
READCMD  =     %00100000
WRITECMD =     %00110000
SCANCMD  =     %01000000
SET_MULT =     $C6        ; MULTIPLE CMDS
RMULTCMD =     $C4        ;
WMULTCMD =     $C5        ;
*
*
***************************************
*
*  IDE REGISTERS
* (MicroDrive Basic & MicroDrive/Turbo)
* Add   SLOT*16  for actual position of the card
* in the slots
*
DATA_REG =     $C080 ; $00   16 BIT DATA REGISTER Addr 0 & 1
BANK_REG =     $C082 ; $02  ROM & SCRATCH RAM BANK SELECT
DMASTART =     $C083 ; $03  DMA START WRITE ONLY
D_ADDRLO =     $C084 ; $04  DMA ADDRESS REG LOW
D_ADDRHI =     $C085 ; $05       "          HIGH
DMA_READ =     $C086 ; $06  SOFTSWITCH DMA READ MODE
DMA_WRIT =     $C087 ; $07       "     DMA WRITE MODE
DIGI_REG =     $C086 ; $06  DIGITAL OUTPUT REGISTER
*
*
IRQ_REG  =     $C088 ; $08  IRQ - FLAG READ ONLY (Bit 7)
WPRCONTR =     $C089 ; $09  Write
ERRORREG =     $C089 ; $09  Read
SECT_CNT =     $C08A ; $0A  RW
SECT_REG =     $C08B ; $0B  RW
CYL_LOW  =     $C08C ; $0C  RW
CYL_HIGH =     $C08D ; $0D  RW
SDH_REG  =     $C08E ; $0E  RW
STAT_REG =     $C08F ; $0F  Read
CMD_REG  =     $C08F ; $0F  Write
*
***************************************