mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-23 07:35:19 +00:00
576 lines
11 KiB
Plaintext
576 lines
11 KiB
Plaintext
NEW
|
||
PREFIX /A2OSX.BUILD
|
||
AUTO 4,1
|
||
*--------------------------------------
|
||
* K.LoadLib
|
||
* in :
|
||
* Y,A = PTR To "LibName.o" C-String
|
||
* out :
|
||
* A = hMem To loaded LIB
|
||
*--------------------------------------
|
||
K.LoadLib jsr BIN.FindLIB
|
||
bcs .9
|
||
|
||
jsr BIN.Load Y,A = "/PATH/BIN"
|
||
bcs .9
|
||
|
||
stx .8+1
|
||
>STYA .1+1
|
||
|
||
txa Pass hLib to LibLoad
|
||
ldx #LIBMGR.LOAD
|
||
.1 jsr $ffff Self Modified, Call LIB.LOAD function
|
||
|
||
bcs .99
|
||
|
||
.8 lda #$ff hLib
|
||
clc
|
||
.9 rts
|
||
|
||
.99 pha
|
||
lda .8+1
|
||
jsr K.FreeMem
|
||
pla
|
||
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
* K.UnloadLib
|
||
* in :
|
||
* A = hMem To Lib
|
||
* out :
|
||
*--------------------------------------
|
||
K.UnloadLib pha
|
||
jsr K.GetMemByID
|
||
>STYA ZPPtr1
|
||
ldy #S.MEM.REFCNT
|
||
lda (ZPPtr1),y Get count of those referencing this lib
|
||
dec only one left ?
|
||
beq .1
|
||
sta (ZPPtr1),y
|
||
pla
|
||
clc
|
||
rts
|
||
|
||
.1 ldy #S.MEM.PTR
|
||
lda (ZPPtr1),y
|
||
sta .2+1
|
||
|
||
iny
|
||
lda (ZPPtr1),y
|
||
sta .2+2
|
||
|
||
ldx #LIBMGR.UNLOAD
|
||
.2 jsr $ffff Self Modified, Call LIB.UNLOAD function
|
||
pla
|
||
jmp K.FreeMem
|
||
*/--------------------------------------
|
||
* # LoadDrv
|
||
* ##ASM
|
||
* **In:**
|
||
* Y,A = PTR to "NAME.DRV [PARAM]" C-String
|
||
* **Out:**
|
||
* none
|
||
*\--------------------------------------
|
||
K.LoadDrv >STYA .2+1 Save "BIN\0ARGS\0\0"
|
||
|
||
jsr BIN.FindDRV
|
||
bcs .9
|
||
|
||
jsr BIN.Load Y,A = "/PATH/BIN"
|
||
bcs .9
|
||
|
||
>STYA .3+1
|
||
stx .97+1
|
||
|
||
ldx #$ff
|
||
|
||
.1 inx Skip "BIN"
|
||
.2 lda $ffff,x
|
||
bne .1
|
||
|
||
txa
|
||
sec
|
||
adc .2+1
|
||
tay
|
||
lda #0
|
||
adc .2+2 Y,A = ARGS
|
||
|
||
.3 jsr $ffff SELF MODIFIED, call Dev.Detect
|
||
bcs .96
|
||
|
||
jsr .96 Cleanup...
|
||
|
||
lda #0 Make sure RC = 0 if success
|
||
clc
|
||
.9 rts
|
||
|
||
.96 pha
|
||
|
||
.97 lda #$ff
|
||
jsr K.FreeMem
|
||
pla
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
BIN.FindLIB clc
|
||
.HS B0 bcs
|
||
BIN.FindDRV sec
|
||
|
||
>STYA BIN.CmdLine
|
||
|
||
>LDYAI BIN.Find.ENV.LIB
|
||
bcc .1
|
||
>LDYAI BIN.Find.ENV.DRV
|
||
|
||
.1 jsr K.GetEnv get value for Search Path
|
||
bcs .9
|
||
|
||
>STYA K.FileSearch.SearchPath
|
||
|
||
>LDYA BIN.CmdLine
|
||
|
||
jsr K.FileSearch.YA find LIB/DRV in Search
|
||
bcs .9
|
||
|
||
>LDYAI K.Buf256
|
||
clc
|
||
.9 rts
|
||
*--------------------------------------
|
||
BIN.Find.ENV.DRV .AZ "DRV"
|
||
BIN.Find.ENV.LIB .AZ "LIB"
|
||
*--------------------------------------
|
||
* BIN.Load
|
||
* in :
|
||
* Y,A = /BIN/PATH (CSTR)
|
||
* out :
|
||
* Y,A = MEMPTR
|
||
* X = hMem of Code Segment
|
||
*--------------------------------------
|
||
BIN.Load >STYA BIN.CmdLine
|
||
>STYA .2+1
|
||
|
||
ldx Mem.LastSlot
|
||
beq BIN.Load.1
|
||
|
||
>LDYAI Mem.Table
|
||
>STYA ZPPtr1
|
||
|
||
ldx #0
|
||
|
||
.1 lda (ZPPtr1)
|
||
bpl .6 In Use?
|
||
|
||
ldy #S.MEM.BIN any BIN PATH in this slot?
|
||
lda (ZPPtr1),y
|
||
beq .6
|
||
|
||
jsr K.GetMemPtr get pathname
|
||
>STYA .3+1
|
||
|
||
ldy #0
|
||
|
||
.2 lda $ffff,y SELF MODIFIED
|
||
.3 cmp $ffff,y SELF MODIFIED
|
||
bne .6
|
||
iny
|
||
ora #0
|
||
bne .2
|
||
|
||
ldy #S.MEM.REFCNT
|
||
lda (ZPPtr1),y
|
||
inc
|
||
sta (ZPPtr1),y
|
||
|
||
txa
|
||
jmp K.GetMemPtr X=hMem from K.GetMemByNameA
|
||
|
||
.6 lda ZPPtr1
|
||
clc
|
||
adc #S.MEM
|
||
sta ZPPtr1
|
||
bcc .7
|
||
inc ZPPtr1+1
|
||
|
||
.7 inx
|
||
cpx Mem.LastSlot
|
||
bne .1
|
||
*--------------------------------------
|
||
BIN.Load.1 >PUSHWI K.S.STAT
|
||
>PUSHW BIN.CmdLine
|
||
>SYSCALL STAT BANK1!!! Look for AUXTYPE
|
||
bcs .9
|
||
|
||
>LDYA K.S.STAT+S.STAT.P.AUXTYPE
|
||
>STYA BIN.R.CS.Start
|
||
|
||
>PUSHYA Push AUXTYPE
|
||
>PUSHBI S.FI.T.BIN
|
||
>PUSHBI SYS.FOpen.R
|
||
>PUSHW BIN.CmdLine
|
||
|
||
>SYSCALL LoadFile BANK1!!!
|
||
.9 bcs .99 Error Loading file
|
||
|
||
stx BIN.hMem save hMem
|
||
|
||
pha YA=CODE+DATA size
|
||
tya
|
||
* clc CC from bcs .99
|
||
|
||
adc BIN.R.CS.Start Get AUXTYPE for actual Base Address
|
||
sta BIN.R.End compute Range End=AUXTYPE+FILELEN
|
||
pla
|
||
adc BIN.R.CS.Start+1
|
||
sta BIN.R.End+1
|
||
|
||
txa
|
||
jsr K.GetMemPtr
|
||
>STYA ZPPtr1 set ZPPtr1 -> Code start
|
||
|
||
pha YA = actual load address
|
||
tya
|
||
sec
|
||
sbc BIN.R.CS.Start
|
||
sta BIN.R.Offset Offset=ZPPtr1-AUXTYPE
|
||
pla
|
||
sbc BIN.R.CS.Start+1
|
||
sta BIN.R.Offset+1
|
||
|
||
ldy #H.BIN.CODE.LEN get Code Len
|
||
lda (ZPPtr1),y
|
||
clc
|
||
adc ZPPtr1
|
||
sta BIN.R.CS.End ZPPtr1 + CodeLen
|
||
iny
|
||
lda (ZPPtr1),y
|
||
adc ZPPtr1+1
|
||
sta BIN.R.CS.End+1
|
||
|
||
jsr BIN.RelExe
|
||
|
||
>LDYA BIN.CmdLine get back bin path
|
||
jsr K.NewStr make a copy of this string
|
||
bcs .98
|
||
|
||
lda BIN.hMem Keep X=hMem
|
||
jsr K.GetMemByID X unmodified
|
||
>STYA ZPPtr1
|
||
|
||
lda (ZPPtr1)
|
||
ora #S.MEM.F.CODE This is a code segment
|
||
sta (ZPPtr1)
|
||
|
||
txa Get Back hMem
|
||
ldy #S.MEM.BIN
|
||
sta (ZPPtr1),y
|
||
|
||
lda BIN.hMem
|
||
tax return hMEM to Caller...
|
||
jmp K.GetMemPtr ...and Y,A=PTR to CS
|
||
|
||
.98 pha
|
||
lda BIN.hMem
|
||
jsr K.FreeMem Discard Loaded Code
|
||
pla
|
||
|
||
sec
|
||
.99 rts
|
||
*--------------------------------------
|
||
BIN.CmdLine .BS 2
|
||
BIN.hMem .BS 1
|
||
*/--------------------------------------
|
||
* #K.InsDrv
|
||
* ##ASM
|
||
* **In:**
|
||
* PUSHW = DRV.END
|
||
* PUSHW = DRV.CS.END
|
||
* Y,A = DRV.CS.START
|
||
*\--------------------------------------
|
||
K.InsDrv >STYA BIN.R.CS.Start
|
||
>PULLW BIN.R.CS.End
|
||
>PULLW BIN.R.End
|
||
|
||
lda BIN.R.End Compute DRVLen=End-start
|
||
sec
|
||
sbc BIN.R.CS.Start
|
||
sta BIN.R.Len
|
||
|
||
lda BIN.R.End+1
|
||
sbc BIN.R.CS.Start+1
|
||
sta BIN.R.Len+1
|
||
|
||
lda DevMgr.Free Compute new DevMgr.Free
|
||
clc
|
||
adc BIN.R.Len
|
||
sta BIN.R.End
|
||
tay Save DRVEnd LO
|
||
lda DevMgr.Free+1
|
||
adc BIN.R.Len+1 A = DRVEnd HI
|
||
sta BIN.R.End+1
|
||
|
||
bcs .9 we crossed $FFFF, out of mem
|
||
|
||
cpy #DevMgr.HiMem
|
||
sbc /DevMgr.HiMem
|
||
bcs .9 No More Room to load Driver....
|
||
|
||
lda DevMgr.DevCnt
|
||
cmp #K.DEV.MAX
|
||
bne .10 No Device Handle Left
|
||
|
||
lda #K.E.OOH
|
||
sec
|
||
rts
|
||
|
||
.9 lda #K.E.OOM
|
||
sec
|
||
rts
|
||
|
||
.10 lda DevMgr.Free Offset = Target DRV address-Src Address
|
||
sec
|
||
sbc BIN.R.CS.Start
|
||
sta BIN.R.Offset
|
||
|
||
lda DevMgr.Free+1
|
||
sbc BIN.R.CS.Start+1
|
||
sta BIN.R.Offset+1
|
||
|
||
jsr BIN.Move
|
||
|
||
jsr BIN.RelDrv
|
||
|
||
>LDYA BIN.R.End
|
||
>STYA DevMgr.Free
|
||
|
||
ldx DevMgr.DevCnt
|
||
lda DevMgr.Free
|
||
sta FD.Table.PTRLO,x
|
||
inx
|
||
lda DevMgr.Free+1
|
||
sta FD.Table.PTRHI,x
|
||
|
||
inx
|
||
stx DevMgr.DevCnt
|
||
|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
BIN.Move lda BIN.R.CS.Start
|
||
clc
|
||
sta ZPPtr1
|
||
adc BIN.R.Offset
|
||
sta BIN.R.CS.Start
|
||
sta ZPPtr2
|
||
|
||
lda BIN.R.CS.Start+1
|
||
sta ZPPtr1+1
|
||
adc BIN.R.Offset+1
|
||
sta BIN.R.CS.Start+1
|
||
sta ZPPtr2+1
|
||
|
||
lda BIN.R.Len+1
|
||
eor #$ff
|
||
pha
|
||
lda BIN.R.Len
|
||
eor #$ff
|
||
tax
|
||
|
||
ldy #0
|
||
|
||
.1 inx
|
||
bne .2
|
||
pla
|
||
inc
|
||
beq .3
|
||
pha
|
||
|
||
.2 lda (ZPPtr1),y
|
||
sta (ZPPtr2),y
|
||
iny
|
||
bne .1
|
||
|
||
inc ZPPtr1+1
|
||
inc ZPPtr2+1
|
||
bra .1
|
||
|
||
.3 lda BIN.R.CS.End
|
||
clc
|
||
adc BIN.R.Offset
|
||
sta BIN.R.CS.End
|
||
|
||
lda BIN.R.CS.End+1
|
||
adc BIN.R.Offset+1
|
||
sta BIN.R.CS.End+1
|
||
|
||
lda BIN.R.End
|
||
clc
|
||
adc BIN.R.Offset
|
||
sta BIN.R.End
|
||
|
||
lda BIN.R.End+1
|
||
adc BIN.R.Offset+1
|
||
sta BIN.R.End+1
|
||
rts
|
||
*--------------------------------------
|
||
* BIN.Rel___ :
|
||
*--------------------------------------
|
||
BIN.R.CS.Start .BS 2
|
||
BIN.R.CS.End .BS 2
|
||
BIN.R.End .BS 2
|
||
BIN.R.Offset .BS 2
|
||
*--------------------------------------
|
||
BIN.R.Len .BS 2
|
||
*--------------------------------------
|
||
BIN.RelExe ldy #H.BIN.T+1
|
||
lda (ZPPtr1),y
|
||
cmp /H.BIN.T.BIN65
|
||
beq .1
|
||
cmp /H.BIN.T.DRV65
|
||
beq .1
|
||
|
||
lda #K.E.IBIN
|
||
sec
|
||
rts
|
||
|
||
.1 ldy #H.BIN.JMP relocate Main JMP
|
||
lda (ZPPtr1),y
|
||
clc
|
||
adc BIN.R.Offset
|
||
sta (ZPPtr1),y
|
||
|
||
iny
|
||
lda (ZPPtr1),y
|
||
adc BIN.R.Offset+1
|
||
sta (ZPPtr1),y
|
||
|
||
ldy #H.BIN.EXE.REL.TABLE skip Header, CS.SIZE & DS.SIZE... (16 bytes)
|
||
|
||
.HS 2C bit abs
|
||
*--------------------------------------
|
||
BIN.RelDrv ldy #H.BIN.DRV.REL.TABLE
|
||
|
||
.1 lda (ZPPtr1),y Start Relocate JMP table
|
||
tax LO in X
|
||
iny
|
||
ora (ZPPtr1),y ORA with HI
|
||
beq .2 $0000 = end of table
|
||
|
||
dey
|
||
txa get back LO
|
||
clc
|
||
adc BIN.R.Offset
|
||
sta (ZPPtr1),y
|
||
|
||
iny
|
||
lda (ZPPtr1),y
|
||
adc BIN.R.Offset+1
|
||
sta (ZPPtr1),y
|
||
|
||
iny
|
||
|
||
bra .1
|
||
*--------------------------------------
|
||
.2 tya add current offset in Y to Ptr
|
||
|
||
sec + 1 to skip last 00 from beq .2
|
||
|
||
adc ZPPtr1
|
||
sta ZPPtr1
|
||
bcc .3
|
||
inc ZPPtr1+1 ZPPtr1=Current Code PTR
|
||
|
||
.3 lda (ZPPtr1) get OPCODE
|
||
lsr /2
|
||
tax
|
||
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?
|
||
beq .6 no....
|
||
|
||
and #7 save Opcode length...
|
||
pha
|
||
|
||
ldy #1
|
||
lda (ZPPtr1),y Get LO
|
||
tax save LO in X
|
||
|
||
iny make Y point to HI
|
||
|
||
cpx BIN.R.CS.Start
|
||
lda (ZPPtr1),y Get HI
|
||
sbc BIN.R.CS.Start+1
|
||
bcc .5 addr < BIN.R.CS.Start, out of range
|
||
|
||
txa Get back LO
|
||
cpx BIN.R.End
|
||
lda (ZPPtr1),y Get HI
|
||
sbc BIN.R.End+1
|
||
bcs .5 addr > BIN.R.End, out of range
|
||
|
||
txa Get back LO
|
||
* clc CC from bcs .6
|
||
adc BIN.R.Offset add Offset to abs address
|
||
dey
|
||
sta (ZPPtr1),y store relocated addr LO
|
||
iny
|
||
lda (ZPPtr1),y Get HI
|
||
adc BIN.R.Offset+1
|
||
sta (ZPPtr1),y store relocated addr HI
|
||
|
||
.5 pla get back Opcode length...
|
||
|
||
.6 clc A = OPCODE length
|
||
adc ZPPtr1
|
||
sta ZPPtr1
|
||
bcc .7
|
||
inc ZPPtr1+1
|
||
|
||
.7 eor BIN.R.CS.End A = ZPPtr1
|
||
bne .3
|
||
lda ZPPtr1+1
|
||
eor BIN.R.CS.End+1
|
||
bne .3 next opcode....
|
||
|
||
.8 rts
|
||
*--------------------------------------
|
||
* 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
|
||
*--------------------------------------
|
||
MAN
|
||
SAVE /A2OSX.SRC/SYS/KERNEL.S.BIN
|
||
LOAD /A2OSX.SRC/SYS/KERNEL.S
|
||
ASM
|