A2osX/SYS/KERNEL.S.BIN.txt

440 lines
9.3 KiB
Plaintext
Raw Normal View History

NEW
2019-05-25 19:24:07 +00:00
AUTO 3,1
2019-01-04 13:17:31 +00:00
*--------------------------------------
.DUMMY
.OR FAC 15 Bytes
BIN.hMem .BS 1
BIN.R.CS.Start .BS 2
BIN.R.CS.End .BS 2
BIN.R.End .BS 2
BIN.R.Offset .BS 2
2019-07-22 16:28:44 +00:00
BIN.R.Stop .BS 2
2019-01-04 13:17:31 +00:00
.ED
2015-03-14 21:48:35 +00:00
*--------------------------------------
2018-07-20 05:43:11 +00:00
* LoadLib
* in :
2019-07-22 06:31:01 +00:00
* Y,A = PTR To "LibName" C-String
* out :
* A = hMem To loaded LIB
*--------------------------------------
2019-01-21 06:52:04 +00:00
K.LoadLib jsr ENV.Search.LIB
bcs .9
2018-06-22 06:24:35 +00:00
jsr BIN.Load Y,A = "/PATH/BIN"
bcs .9
>STYA .1+1
2019-02-03 21:58:26 +00:00
txa Pass hLib to LibLoad
ldx #LIBMGR.LOAD
2019-02-03 21:58:26 +00:00
.1 jsr $ffff SELF MODIFIED, Call LIB.LOAD function
2019-01-26 14:01:05 +00:00
bcs BIN.Load.Cleanup
2019-07-22 06:31:01 +00:00
lda BIN.hMem
2019-02-03 21:58:26 +00:00
* clc
.9 rts
*--------------------------------------
2018-07-20 05:43:11 +00:00
* UnloadLib
* in :
* A = hMem To Lib
* out :
*--------------------------------------
2018-06-18 06:22:50 +00:00
K.UnloadLib pha
2018-12-20 16:23:43 +00:00
jsr K.GetMemPtr
>STYA .2+1
2019-07-18 15:55:43 +00:00
jsr Mem.DecRefCnt
2019-02-05 13:45:15 +00:00
bne .8
2018-12-20 16:23:43 +00:00
.1 ldx #LIBMGR.UNLOAD
.2 jsr $ffff Self Modified, Call LIB.UNLOAD function
pla
2018-06-22 06:24:35 +00:00
jmp K.FreeMem
2019-02-05 13:45:15 +00:00
2019-07-18 15:55:43 +00:00
.8 pla
2019-02-05 13:45:15 +00:00
* clc
rts
2018-06-21 15:12:10 +00:00
*/--------------------------------------
* # LoadDrv
2018-07-20 05:43:11 +00:00
* ## ASM
2018-06-21 15:12:10 +00:00
* **In:**
* Y,A = PTR to "NAME.DRV [PARAM]" C-String
2018-10-11 15:23:06 +00:00
* ## RETURN VALUE
2018-06-21 15:12:10 +00:00
* none
*\--------------------------------------
2018-06-18 06:22:50 +00:00
K.LoadDrv >STYA .2+1 Save "BIN\0ARGS\0\0"
2019-01-21 06:52:04 +00:00
jsr ENV.Search.DRV
bcs .9
2018-06-22 06:24:35 +00:00
jsr BIN.Load Y,A = "/PATH/BIN"
bcs .9
2018-07-05 15:39:36 +00:00
>STYA .3+1
2019-02-03 21:58:26 +00:00
ldx #$ff
.1 inx Skip "BIN"
.2 lda $ffff,x
bne .1
txa
sec
adc .2+1
tay
lda #0
2018-06-28 15:26:34 +00:00
adc .2+2 Y,A = ARGS
2018-07-05 15:39:36 +00:00
.3 jsr $ffff SELF MODIFIED, call Dev.Detect
2019-01-26 14:01:05 +00:00
jsr BIN.Load.Cleanup
2019-02-03 21:58:26 +00:00
bcs .9
lda #0 Make sure RC = 0 if success
2019-07-22 06:31:01 +00:00
* clc
.9 rts
2019-01-26 14:01:05 +00:00
BIN.Load.Cleanup
2019-02-03 21:58:26 +00:00
php
2019-01-26 14:01:05 +00:00
pha
2019-07-22 06:31:01 +00:00
lda BIN.hMem
2018-06-22 06:24:35 +00:00
jsr K.FreeMem
pla
2019-02-03 21:58:26 +00:00
plp
2019-01-26 14:01:05 +00:00
BIN.Load.Cleanup.RTS
rts
*--------------------------------------
2018-06-28 15:26:34 +00:00
* BIN.Load
2015-03-14 21:48:35 +00:00
* in :
* Y,A = /BIN/PATH (CSTR)
2015-03-14 21:48:35 +00:00
* out :
* Y,A = MEMPTR
* X = hMem of Code Segment
*--------------------------------------
2019-07-22 06:31:01 +00:00
BIN.Load ldx #0
2018-08-20 15:15:37 +00:00
.1 cpx Mem.LastSlot
beq BIN.Load.1
2018-12-20 16:23:43 +00:00
inx we will skip Slot 0...
2018-08-20 15:15:37 +00:00
2018-12-20 16:23:43 +00:00
txa
2019-02-01 20:01:54 +00:00
jsr MEM.GetMemByID
2018-12-20 16:23:43 +00:00
lda (ZPMemMgrSPtr)
2018-08-20 15:15:37 +00:00
bpl .1 In Use?
ldy #S.MEM.BIN any BIN PATH in this slot?
2018-12-20 16:23:43 +00:00
lda (ZPMemMgrSPtr),y
2018-08-20 15:15:37 +00:00
beq .1
2018-08-20 15:15:37 +00:00
jsr K.GetMemPtr X unmodified, get pathname
>STYA .3+1
ldy #0
2019-07-22 06:31:01 +00:00
.2 lda K.Buf256,y
.3 cmp $ffff,y SELF MODIFIED
2018-08-20 15:15:37 +00:00
bne .1
iny
ora #0
bne .2
2019-07-22 06:31:01 +00:00
stx BIN.hMem save hMem
2018-12-20 16:23:43 +00:00
txa
2019-02-03 21:58:26 +00:00
jsr MEM.GetMemByID
2019-07-18 15:55:43 +00:00
jsr Mem.IncRefCnt
clc
2019-07-22 06:31:01 +00:00
jmp MEM.GetMEMPTR Y,A=Ptr
*--------------------------------------
2019-01-26 14:01:05 +00:00
* STAT Already called by Filesearch in FindDRV, FindLIB
* STAT Already called by PS.Load (TXT,BIN,SYS)
*--------------------------------------
BIN.Load.1 >LDYA K.S.STAT+S.STAT.P.AUXTYPE
2018-06-29 14:16:40 +00:00
>STYA BIN.R.CS.Start
2016-09-26 16:00:52 +00:00
>PUSHYA Push AUXTYPE
2018-06-29 14:16:40 +00:00
>PUSHBI S.FI.T.BIN
2018-10-02 15:52:30 +00:00
>PUSHBI O.RDONLY
2019-07-22 06:31:01 +00:00
>LDYAI K.Buf256
2019-05-04 21:13:50 +00:00
ldx #SYS.LoadFile
2019-05-12 20:45:11 +00:00
jsr K.SYSCALL2.BANK BANK1!!!
2019-01-26 14:01:05 +00:00
bcs BIN.Load.Cleanup.RTS Error Loading file
stx BIN.hMem save hMem
2019-07-22 06:31:01 +00:00
pha YA=CODE+DATA size
tya
2019-07-22 06:31:01 +00:00
* clc
2018-07-13 14:38:24 +00:00
adc BIN.R.CS.Start Get AUXTYPE for actual Base Address
2017-10-27 14:56:46 +00:00
sta BIN.R.End compute Range End=AUXTYPE+FILELEN
pla
2018-06-29 14:16:40 +00:00
adc BIN.R.CS.Start+1
2017-10-27 14:56:46 +00:00
sta BIN.R.End+1
txa
2018-06-21 15:12:10 +00:00
jsr K.GetMemPtr
2019-07-22 06:31:01 +00:00
>STYA ZPPtr1 set ZPPtr1 -> New Code start
2019-07-22 06:31:01 +00:00
jsr BIN.ComputeOffsetYA YA = actual load address
2018-09-11 13:32:56 +00:00
ldy #H.BIN.CS.SIZE get Code Len
2017-01-12 17:43:45 +00:00
lda (ZPPtr1),y
2019-07-22 06:31:01 +00:00
pha
iny
2017-01-12 17:43:45 +00:00
lda (ZPPtr1),y
2019-07-22 06:31:01 +00:00
ply
jsr BIN.ComputeCSEndYA
2017-10-27 14:56:46 +00:00
jsr BIN.RelExe
2015-06-03 18:30:57 +00:00
2019-07-22 06:31:01 +00:00
>LDYAI K.Buf256 get back bin path
2019-05-04 21:13:50 +00:00
ldx #SYS.strdup make a copy of this string
2019-05-12 20:45:11 +00:00
jsr K.SYSCALL2.BANK
2015-03-14 21:48:35 +00:00
bcs .98
2019-02-03 21:58:26 +00:00
lda BIN.hMem Keep X=new string hMem
2019-01-30 06:20:13 +00:00
jsr MEM.GetMemByID X unmodified
2015-06-03 18:30:57 +00:00
2018-12-20 16:23:43 +00:00
lda (ZPMemMgrSPtr)
2015-03-14 21:48:35 +00:00
ora #S.MEM.F.CODE This is a code segment
2018-12-20 16:23:43 +00:00
sta (ZPMemMgrSPtr)
2016-03-13 21:47:19 +00:00
2018-12-20 16:23:43 +00:00
txa Get Back Cmd line hMem
2015-03-14 21:48:35 +00:00
ldy #S.MEM.BIN
2018-12-20 16:23:43 +00:00
sta (ZPMemMgrSPtr),y
2015-06-03 18:30:57 +00:00
2018-12-20 16:23:43 +00:00
clc
2019-02-03 21:58:26 +00:00
jmp MEM.GetMEMPTR ...and Y,A=PTR to CS
2015-03-14 21:48:35 +00:00
2019-07-22 06:31:01 +00:00
.98 jmp BIN.Load.Cleanup Discard Loaded Code, exits CS
2018-06-28 15:26:34 +00:00
*/--------------------------------------
2018-07-20 05:43:11 +00:00
* # InsDrv
* ## C
2019-07-22 06:31:01 +00:00
* `void * insdrv (void * src, void * crvcsstart, void * drvcssize, void * drvend);`
2018-07-20 05:43:11 +00:00
* ## ASM
2018-06-28 15:26:34 +00:00
* **In:**
2018-07-19 15:33:55 +00:00
* `>PUSHW DRV.END`
2019-07-22 06:31:01 +00:00
* `>PUSHW DRV.CS.SIZE`
2018-07-19 15:33:55 +00:00
* `>PUSHW DRV.CS.START`
* `>LDYA L.SRC`
2019-02-26 16:50:42 +00:00
* `>SYSCALL insdrv`
2018-10-11 15:23:06 +00:00
* ## RETURN VALUE
2018-07-17 15:45:59 +00:00
* Y,A = Ptr to installed driver
2018-06-28 15:26:34 +00:00
*\--------------------------------------
2019-07-22 06:31:01 +00:00
K.InsDrv >STYA ZPPtr3 SRC PTR for move
2018-07-17 15:45:59 +00:00
>PULLW BIN.R.CS.Start
2019-07-22 06:31:01 +00:00
>PULLYA CS Len
jsr BIN.ComputeCSEndYA
2018-06-29 14:16:40 +00:00
>PULLW BIN.R.End
2019-07-22 06:31:01 +00:00
jsr MEM.GetKrnlBuf Y,A = CODE + DATA
2019-01-11 16:06:05 +00:00
bcs .9 No More Room to load Driver
2019-07-22 06:31:01 +00:00
2019-01-11 16:06:05 +00:00
>STYA ZPPtr1 Y,A = DST Buf for RelDrv...
2019-07-22 06:31:01 +00:00
>STYA ZPPtr4 ...for move...
2019-01-11 16:06:05 +00:00
sty .7+1 ...and for exit
sta .8+1
2019-07-22 06:31:01 +00:00
jsr BIN.ComputeOffsetYA
lda BIN.R.End
2018-06-29 14:16:40 +00:00
sec
sbc BIN.R.CS.Start
2019-07-22 06:31:01 +00:00
tay
eor #$ff
tax
2019-07-22 06:31:01 +00:00
lda BIN.R.End+1
2018-06-29 14:16:40 +00:00
sbc BIN.R.CS.Start+1
eor #$ff
pha
ldy #0
2018-06-29 14:16:40 +00:00
.1 inx
bne .2
2019-01-11 16:06:05 +00:00
pla
inc
2018-06-29 14:16:40 +00:00
beq .3
2019-01-11 16:06:05 +00:00
pha
2019-07-22 06:31:01 +00:00
.2 lda (ZPPtr3),y
sta (ZPPtr4),y
iny
2018-06-29 14:16:40 +00:00
bne .1
2019-01-11 16:06:05 +00:00
inc ZPPtr3+1
2019-07-22 06:31:01 +00:00
inc ZPPtr4+1
2018-06-29 14:16:40 +00:00
bra .1
2019-01-11 16:06:05 +00:00
.3 jsr BIN.RelDrv Relocate at Ptr1
.7 ldy #$ff SELF MODIFIED
.8 lda #$ff SELF MODIFIED
.9 rts
*--------------------------------------
2017-10-27 14:56:46 +00:00
BIN.RelExe ldy #H.BIN.T+1
2017-01-12 17:43:45 +00:00
lda (ZPPtr1),y
cmp /H.BIN.T.BIN65
beq .1
cmp /H.BIN.T.DRV65
beq .1
2018-10-21 20:54:07 +00:00
lda #E.IBIN
sec
rts
.1 ldy #H.BIN.JMP relocate Main JMP
2019-01-11 16:06:05 +00:00
jsr BIN.RelocateAtPtr1Y
ldy #H.BIN.EXE.REL.TABLE skip Header, CS.SIZE & DS.SIZE... (16 bytes)
.HS 2C bit abs
*--------------------------------------
2017-10-27 14:56:46 +00:00
BIN.RelDrv ldy #H.BIN.DRV.REL.TABLE
2018-07-17 15:45:59 +00:00
2019-01-11 16:06:05 +00:00
.1 iny
2018-09-09 08:11:42 +00:00
lda (ZPPtr1),y HI in A
beq .2 $00xx = end of table
dey
2019-01-11 16:06:05 +00:00
jsr BIN.RelocateAtPtr1Y
iny
bra .1
*--------------------------------------
2018-12-20 16:23:43 +00:00
.2 jsr MEM.AddYp1ToPtr1 add current offset in Y to Ptr
* + 1 to skip last 00 from beq .2
* ZPPtr1=Current Code PTR
2019-07-22 16:28:44 +00:00
lda BIN.R.CS.End
2018-07-19 15:33:55 +00:00
clc
adc BIN.R.Offset
2019-07-22 16:28:44 +00:00
sta BIN.R.Stop
lda BIN.R.CS.End+1
2019-07-22 06:31:01 +00:00
adc BIN.R.Offset+1
2019-07-22 16:28:44 +00:00
sta BIN.R.Stop+1
2018-07-19 15:33:55 +00:00
2019-07-22 06:31:01 +00:00
.3 lda (ZPPtr1) get OPCODE
lsr /2
tax
2018-06-29 14:16:40 +00:00
lda BIN.65816,x get OPCODE definition
bcs .4 go get LO nibble
lsr
lsr move HI -> LO
lsr
lsr
.4 and #$0f
bit #$8 abs addressing?
2019-07-22 06:31:01 +00:00
beq .5 no....
and #7 save Opcode length...
pha
ldy #1
2019-01-11 16:06:05 +00:00
jsr BIN.RelocateAtPtr1Y
2019-07-22 06:31:01 +00:00
pla get back Opcode length...
2019-01-11 16:06:05 +00:00
2019-07-22 06:31:01 +00:00
.5 tay A = OPCODE length
jsr MEM.AddYToPtr1
2019-07-22 16:28:44 +00:00
.6 cmp BIN.R.Stop A = ZPPtr1
2019-01-11 16:06:05 +00:00
bne .3
2019-07-22 06:31:01 +00:00
2019-01-11 16:06:05 +00:00
lda ZPPtr1+1
2019-07-22 16:28:44 +00:00
.7 cmp BIN.R.Stop+1
2019-01-11 16:06:05 +00:00
bne .3 next opcode....
2019-07-22 06:31:01 +00:00
clc Make sure exit with CC
2019-01-11 16:06:05 +00:00
2019-07-22 06:31:01 +00:00
rts
*-------------------------------------- YA = CS Size
BIN.ComputeCSEndYA
pha
tya
clc
adc BIN.R.CS.Start
sta BIN.R.CS.End ZPPtr1 + CodeLen
pla
adc BIN.R.CS.Start+1
sta BIN.R.CS.End+1
rts
*-------------------------------------- YA = Target Address
BIN.ComputeOffSetYA
pha
tya
sec
sbc BIN.R.CS.Start
sta BIN.R.Offset
pla
sbc BIN.R.CS.Start+1
sta BIN.R.Offset+1
2019-01-11 16:06:05 +00:00
rts
*--------------------------------------
BIN.RelocateAtPtr1Y
2018-07-17 15:45:59 +00:00
lda (ZPPtr1),y Get LO
tax save LO in X
iny make Y point to HI
2018-07-17 15:45:59 +00:00
lda (ZPPtr1),y Get HI
2019-01-11 16:06:05 +00:00
2018-06-29 14:16:40 +00:00
cpx BIN.R.CS.Start
sbc BIN.R.CS.Start+1
2019-01-11 16:06:05 +00:00
bcc .9 addr < BIN.R.CS.Start, out of range
txa Get back LO
2017-10-27 14:56:46 +00:00
cpx BIN.R.End
2018-07-17 15:45:59 +00:00
lda (ZPPtr1),y Get HI
2017-10-27 14:56:46 +00:00
sbc BIN.R.End+1
2019-01-11 16:06:05 +00:00
bcs .9 addr > BIN.R.End, out of range
txa Get back LO
dey
2019-01-11 16:06:05 +00:00
clc
adc BIN.R.Offset
sta (ZPPtr1),y
iny
2019-01-11 16:06:05 +00:00
lda (ZPPtr1),y
2017-10-27 14:56:46 +00:00
adc BIN.R.Offset+1
2019-01-11 16:06:05 +00:00
sta (ZPPtr1),y
2019-01-11 16:06:05 +00:00
.9 rts
*--------------------------------------
2019-01-04 13:17:31 +00:00
* 6502/65C02/65816 OPCODES
* Bit 3 : 1 = absolute addressing
* Bit 2-1-0 : opcode + @ length
*--------------------------------------
* 0.1.2.3.4.5.6.7.8.9.A.B.C.D.E.F
BIN.65816
* TO DO : Make 2 different tables
* http://axis.llx.com/~nparker/a2/opcodes.html
*--------------------------------------
* 65R02 OPCODES
*--------------------------------------
* 0.1.2.3.4.5.6.7.8.9.A.B.C.D.E.F
BIN.65R02 .HS 1.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
.HS 2.2.2.1.2.2.2.2.1.B.1.1.B.B.B.3
.HS B.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
.HS 2.2.2.1.2.2.2.2.1.B.1.1.B.B.B.3
.HS 1.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
.HS 2.2.2.1.2.2.2.2.1.B.1.1.1.B.B.3
.HS 1.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
.HS 2.2.2.1.2.2.2.2.1.B.1.1.B.B.B.3
.HS 2.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
.HS 2.2.2.1.2.2.2.2.1.B.1.1.B.B.B.3
.HS 2.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
.HS 2.2.2.1.2.2.2.2.1.B.1.1.B.B.B.3
.HS 2.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
.HS 2.2.2.1.2.2.2.2.1.B.1.1.1.B.B.3
.HS 2.2.2.1.2.2.2.2.1.2.1.1.B.B.B.3
.HS 2.2.2.1.2.2.2.2.1.B.1.1.1.B.B.3
*--------------------------------------
2015-03-14 21:48:35 +00:00
MAN
2018-11-17 17:17:13 +00:00
SAVE USR/SRC/SYS/KERNEL.S.BIN
LOAD USR/SRC/SYS/KERNEL.S
2015-03-14 21:48:35 +00:00
ASM