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Kernel version 0.8 : Fixed a nasty bug in Relocator, but another one still there in K/LoadFile

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This commit is contained in:
Rémy GIBERT 2016-09-30 17:04:55 +02:00
parent 4219fe9e0d
commit d1de493789
6 changed files with 96 additions and 91 deletions
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BIN
A2OSX.BOOT.po
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BIN
A2OSX.SRC.po
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9
INC/A2osX.I.txt
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@ -130,11 +130,14 @@ H.BIN.JMP .EQ 2
H.BIN.CODE.TYPE .EQ 4 H.BIN.CODE.TYPE .EQ 4
H.BIN.VERSION .EQ 5 H.BIN.VERSION .EQ 5
H.BIN.CODE.LEN .EQ 8 H.BIN.CODE.LEN .EQ 8
H.BIN.BIN.DS.SIZE .EQ 10 *
H.BIN.DEV.HEADER.O .EQ 10 H.BIN.EXE.DS.SIZE .EQ 10
H.BIN.EXE.REL.TABLE .EQ 16
*
H.BIN.DRV.DEVCTRLBLK.O .EQ 10
H.BIN.DRV.CODE.O .EQ 12 H.BIN.DRV.CODE.O .EQ 12
H.BIN.DRV.CODE.LEN .EQ 14 H.BIN.DRV.CODE.LEN .EQ 14
H.BIN.RELOC.TABLE .EQ 16 H.BIN.DRV.REL.TABLE .EQ 0
*-------------------------------------- *--------------------------------------
* A2osX.SYSCALL Functions Indexes * A2osX.SYSCALL Functions Indexes
*-------------------------------------- *--------------------------------------

158
SYS/KERNEL.S.BIN.txt
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@ -41,53 +41,53 @@ K.LoadEXEYA.1 >PUSHWI KrnBuf256
jsr K.LoadFile jsr K.LoadFile
.9 bcs .99 Error Loading file .9 bcs .99 Error Loading file
>STYA BIN.Relocate.SegLen >DEBUG
stx K.LoadEXEYA.hMem save hMem stx K.LoadEXEYA.hMem save hMem
txa
jsr K.GetMemPtrA
>STYA ZPQuickPtr1
ldy #H.BIN.CODE.LEN+1 get Code Len pha YA=CODE+DATA size
lda (ZPQuickPtr1),y tya
tax * clc CC from bcs .99
dey
lda (ZPQuickPtr1),y
jsr BIN.Relocate.SetCodeLenAX
lda BIN.Relocate.Start Get AUXTYPE for actual Base Address adc BIN.Relocate.Start Get AUXTYPE for actual Base Address
clc
adc BIN.Relocate.SegLen
sta BIN.Relocate.End compute Range End=AUXTYPE+FILELEN sta BIN.Relocate.End compute Range End=AUXTYPE+FILELEN
pla
lda BIN.Relocate.Start+1 adc BIN.Relocate.Start+1
adc BIN.Relocate.SegLen+1
sta BIN.Relocate.End+1 sta BIN.Relocate.End+1
lda ZPQuickPtr1 txa
jsr K.GetMemPtrA
>STYA ZPQuickPtr1 set ZPQuickPtr1 -> Code start
>DEBUG
pha YA = actual load address
tya
sec sec
sbc BIN.Relocate.Start sbc BIN.Relocate.Start
sta BIN.Relocate.Offset Offset=ZPQuickPtr1-AUXTYPE sta BIN.Relocate.Offset Offset=ZPQuickPtr1-AUXTYPE
pla
lda ZPQuickPtr1+1
sbc BIN.Relocate.Start+1 sbc BIN.Relocate.Start+1
sta BIN.Relocate.Offset+1 sta BIN.Relocate.Offset+1
jsr Bin.RelocateEXE ldy #H.BIN.CODE.LEN get Code Len
jsr BIN.SetupCodeEndPtr2
jsr BIN.RelocateEXE
>LDYA K.LoadEXEYA.Filename get back bin path >LDYA K.LoadEXEYA.Filename get back bin path
>SYSCALL SYS.NewPStrYA make a copy of this string >SYSCALL SYS.NewPStrYA make a copy of this string
bcs .98 bcs .98
phx save copy
lda K.LoadEXEYA.hMem lda K.LoadEXEYA.hMem Keep X=hMem
jsr K.GetMemByIDA jsr K.GetMemByIDA X unmodified
>STYA ZPQuickPtr1 >STYA ZPQuickPtr1
lda (ZPQuickPtr1) lda (ZPQuickPtr1)
ora #S.MEM.F.CODE This is a code segment ora #S.MEM.F.CODE This is a code segment
sta (ZPQuickPtr1) sta (ZPQuickPtr1)
pla txa Get Back hMem
ldy #S.MEM.BIN ldy #S.MEM.BIN
sta (ZPQuickPtr1),y sta (ZPQuickPtr1),y
@ -111,14 +111,7 @@ K.LoadEXEYA.hMem .BS 1
* BIN.InstallDRV * BIN.InstallDRV
* pDrv = .DRV File Loaded Address * pDrv = .DRV File Loaded Address
*-------------------------------------- *--------------------------------------
BIN.InstallDRV ldy #H.BIN.DRV.CODE.LEN+1 BIN.InstallDRV ldy #H.BIN.DRV.CODE.O
lda (pDrv),y
tax
dey
lda (pDrv),y
jsr BIN.Relocate.SetCodeLenAX
ldy #H.BIN.DRV.CODE.O
lda (pDrv),y lda (pDrv),y
clc clc
adc BIN.Relocate.Start Advance start From Bin code to DRV code adc BIN.Relocate.Start Advance start From Bin code to DRV code
@ -128,29 +121,28 @@ BIN.InstallDRV ldy #H.BIN.DRV.CODE.LEN+1
adc BIN.Relocate.Start+1 adc BIN.Relocate.Start+1
sta BIN.Relocate.Start+1 sta BIN.Relocate.Start+1
ldy #H.BIN.DRV.CODE.O lda BIN.Relocate.End Compute DRVLen=End-start
lda BIN.Relocate.SegLen
sec sec
sbc (pDrv),y sbc BIN.Relocate.Start
sta BIN.InstallDRV.DRVLen sta BIN.InstallDRV.DRVLen
iny
lda BIN.Relocate.SegLen+1 lda BIN.Relocate.End+1
sbc (pDrv),y sbc BIN.Relocate.Start+1
sta BIN.InstallDRV.DRVLen+1 Compute DRV Len sta BIN.InstallDRV.DRVLen+1
lda DevMgr.Free lda DevMgr.Free
clc clc
adc BIN.InstallDRV.DRVLen adc BIN.InstallDRV.DRVLen
sta BIN.InstallDRV.DRVEnd sta BIN.InstallDRV.DRVEnd
tay Save DRVEnd LO
lda DevMgr.Free+1 lda DevMgr.Free+1
adc BIN.InstallDRV.DRVLen+1 sta ZPQuickPtr3+1 save it for DrvMove
adc BIN.InstallDRV.DRVLen+1 A = DRVEnd HI
sta BIN.InstallDRV.DRVEnd+1 sta BIN.InstallDRV.DRVEnd+1
bcs .98 we crossed $FFFF, out of mem bcs .98 we crossed $FFFF, out of mem
lda BIN.InstallDRV.DRVEnd cpy #DevMgr.HiMem
cmp #DevMgr.HiMem
lda BIN.InstallDRV.DRVEnd+1
sbc /DevMgr.HiMem sbc /DevMgr.HiMem
bcs .98 No More Room to load Driver.... bcs .98 No More Room to load Driver....
@ -161,7 +153,7 @@ BIN.InstallDRV ldy #H.BIN.DRV.CODE.LEN+1
sta DevMgr.LastDevID sta DevMgr.LastDevID
ldy #H.BIN.DEV.HEADER.O ldy #H.BIN.DRV.DEVCTRLBLK.O
lda (pDrv),y lda (pDrv),y
clc clc
adc pDrv adc pDrv
@ -193,6 +185,9 @@ BIN.InstallDRV ldy #H.BIN.DRV.CODE.LEN+1
adc pDrv+1 adc pDrv+1
sta ZPQuickPtr1+1 sta ZPQuickPtr1+1
ldy #H.BIN.DRV.CODE.LEN
jsr BIN.SetupCodeEndPtr2
jsr BIN.RelocateDRV jsr BIN.RelocateDRV
jsr BIN.MoveDRV jsr BIN.MoveDRV
@ -210,7 +205,7 @@ BIN.InstallDRV ldy #H.BIN.DRV.CODE.LEN+1
sec sec
rts rts
*-------------------------------------- *--------------------------------------
BIN.MoveDRV ldy #H.BIN.DEV.HEADER.O BIN.MoveDRV ldy #H.BIN.DRV.DEVCTRLBLK.O
lda (pDrv),y lda (pDrv),y
clc clc
adc pDrv adc pDrv
@ -259,10 +254,8 @@ BIN.MoveDRV ldy #H.BIN.DEV.HEADER.O
adc pDrv+1 adc pDrv+1
sta ZPQuickPtr1+1 Make ZPQuickPtr1=DRV.CODE sta ZPQuickPtr1+1 Make ZPQuickPtr1=DRV.CODE
lda DevMgr.Free >LDYA DevMgr.Free
sta ZPQuickPtr2 >STYA ZPQuickPtr2 Make ZPQuickPtr1=Dest location in LC
lda DevMgr.Free+1
sta ZPQuickPtr2+1 Make ZPQuickPtr2=Dest Ram Location
lda BIN.InstallDRV.DrvLen+1 lda BIN.InstallDRV.DrvLen+1
eor #$ff eor #$ff
@ -276,7 +269,7 @@ BIN.MoveDRV ldy #H.BIN.DEV.HEADER.O
.2 inx .2 inx
bne .3 bne .3
pla pla
inc dec
beq .8 beq .8
pha pha
@ -284,35 +277,41 @@ BIN.MoveDRV ldy #H.BIN.DEV.HEADER.O
sta (ZPQuickPtr2),y sta (ZPQuickPtr2),y
iny iny
bne .2 bne .2
inc ZPQuickPtr1+1 inc ZPQuickPtr1+1
inc ZPQuickPtr2+1 inc ZPQuickPtr2+1
bra .2 bra .2
.8 rts CC from last ADC .8 rts
*-------------------------------------- *--------------------------------------
BIN.InstallDRV.DrvLen .BS 2 BIN.InstallDRV.DrvLen .BS 2
BIN.InstallDRV.DrvEnd .BS 2 BIN.InstallDRV.DrvEnd .BS 2
*-------------------------------------- *--------------------------------------
BIN.Relocate.SetCodeLenAX BIN.SetupCodeEndPtr2
eor #$ff lda (ZPQuickPtr1),y
sta BIN.Relocate.nCodeLen clc
txa adc ZPQuickPtr1
eor #$ff sta ZPQuickPtr2 Make ZPQuickPtr2 = ZPQuickPtr1 + CodeLen
sta BIN.Relocate.nCodeLen+1 iny
lda (ZPQuickPtr1),y
adc ZPQuickPtr1+1
sta ZPQuickPtr2+1
rts rts
*-------------------------------------- *--------------------------------------
* BIN.Relocate___ : * BIN.Relocate___ :
* In : * In :
* ZPQuickPtr1 = Ptr to Code * ZPQuickPtr1 = Ptr to Code
* ZPQuickPtr2 = End Of Code
*-------------------------------------- *--------------------------------------
BIN.Relocate.SegLen .BS 2 Code+Data Len
BIN.Relocate.Start .BS 2 BIN.Relocate.Start .BS 2
BIN.Relocate.End .BS 2 BIN.Relocate.End .BS 2
BIN.Relocate.Offset .BS 2 BIN.Relocate.Offset .BS 2
BIN.Relocate.nCodeLen .BS 2 !Code length
*-------------------------------------- *--------------------------------------
BIN.RelocateEXE ldy #H.BIN.JMP relocate Main JMP BIN.RelocateEXE ldy #H.BIN.HEADER+1
lda (ZPQuickPtr1),y
cmp /H.BIN.HEADER.BIN65
bne *
ldy #H.BIN.JMP relocate Main JMP
lda (ZPQuickPtr1),y lda (ZPQuickPtr1),y
clc clc
adc BIN.Relocate.Offset adc BIN.Relocate.Offset
@ -323,14 +322,11 @@ BIN.RelocateEXE ldy #H.BIN.JMP relocate Main JMP
adc BIN.Relocate.Offset+1 adc BIN.Relocate.Offset+1
sta (ZPQuickPtr1),y sta (ZPQuickPtr1),y
ldy #H.BIN.RELOC.TABLE skip Header, CS.SIZE & DS.SIZE... (16 bytes) ldy #H.BIN.EXE.REL.TABLE skip Header, CS.SIZE & DS.SIZE... (16 bytes)
>DEBUG
.HS 2C bit abs .HS 2C bit abs
*-------------------------------------- *--------------------------------------
BIN.RelocateDRV ldy #0 BIN.RelocateDRV ldy #H.BIN.DRV.REL.TABLE
.1 lda (ZPQuickPtr1),y Start Relocate JMP table .1 lda (ZPQuickPtr1),y Start Relocate JMP table
tax LO in X tax LO in X
@ -362,24 +358,19 @@ BIN.RelocateDRV ldy #0
bcc .3 bcc .3
inc ZPQuickPtr1+1 ZPQuickPtr1=Current Code PTR inc ZPQuickPtr1+1 ZPQuickPtr1=Current Code PTR
.3 inc BIN.Relocate.nCodeLen .3 lda (ZPQuickPtr1) get OPCODE
bne .4 nCodeLen reached 0 ?
inc BIN.Relocate.nCodeLen+1
beq .8 no, continue relocating
.4 lda (ZPQuickPtr1) get OPCODE
lsr /2 lsr /2
tax tax
lda BIN.OPCODES,x get OPCODE definition lda BIN.OPCODES,x get OPCODE definition
bcs .5 go get LO nibble bcs .4 go get LO nibble
lsr lsr
lsr move HI -> LO lsr move HI -> LO
lsr lsr
lsr lsr
.5 and #$0f .4 and #$0f
bit #$8 abs addressing? bit #$8 abs addressing?
beq .7 no.... beq .6 no....
and #7 save Opcode length... and #7 save Opcode length...
pha pha
@ -393,13 +384,13 @@ BIN.RelocateDRV ldy #0
cpx BIN.Relocate.Start cpx BIN.Relocate.Start
lda (ZPQuickPtr1),y Get HI lda (ZPQuickPtr1),y Get HI
sbc BIN.Relocate.Start+1 sbc BIN.Relocate.Start+1
bcc .6 addr < BIN.Relocate.Start, out of range bcc .5 addr < BIN.Relocate.Start, out of range
txa Get back LO txa Get back LO
cpx BIN.Relocate.End cpx BIN.Relocate.End
lda (ZPQuickPtr1),y Get HI lda (ZPQuickPtr1),y Get HI
sbc BIN.Relocate.End+1 sbc BIN.Relocate.End+1
bcs .6 addr > BIN.Relocate.End, out of range bcs .5 addr > BIN.Relocate.End, out of range
txa Get back LO txa Get back LO
* clc CC from bcs .6 * clc CC from bcs .6
@ -411,14 +402,19 @@ BIN.RelocateDRV ldy #0
adc BIN.Relocate.Offset+1 adc BIN.Relocate.Offset+1
sta (ZPQuickPtr1),y store relocated addr HI sta (ZPQuickPtr1),y store relocated addr HI
.6 pla get back Opcode length... .5 pla get back Opcode length...
.7 clc A = OPCODE length .6 clc A = OPCODE length
adc ZPQuickPtr1 adc ZPQuickPtr1
sta ZPQuickPtr1 sta ZPQuickPtr1
bcc .3 bcc .7
inc ZPQuickPtr1+1 inc ZPQuickPtr1+1
bra .3 next opcode....
.7 eor ZPQuickPtr2 A = ZPQuickPtr1
bne .3
lda ZPQuickPtr1+1
eor ZPQuickPtr2+1
bne .3 next opcode....
.8 rts .8 rts
*-------------------------------------- *--------------------------------------

10
SYS/KERNEL.S.FIO.txt
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@ -145,13 +145,13 @@ K.LoadFile jsr K.FOPEN
ldx #SYS.FSEEK.SET ldx #SYS.FSEEK.SET
jsr K.LoadFile.Seek jsr K.LoadFile.Seek
bcs .99 bcs .97
>PUSHW K.LoadFile.Mem >PUSHW K.LoadFile.Mem
>PUSHW K.LoadFile.Len >PUSHW K.LoadFile.Len
>PUSHB K.LoadFile.hFile >PUSHB K.LoadFile.hFile
jsr K.FREAD jsr K.FREAD
bcs .99 bcs .97
jsr .99 jsr .99
@ -160,6 +160,12 @@ K.LoadFile jsr K.FOPEN
clc clc
.9 rts .9 rts
.97 pha
lda K.LoadFile.hMem
jsr K.FreeMemA
pla
.HS 2C
.98 lda #SYSMGR.ERRFTB .98 lda #SYSMGR.ERRFTB
.99 pha .99 pha

2
SYS/KERNEL.S.PS.txt
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@ -265,7 +265,7 @@ PS.Init >LDYA K.CreateProcess.CmdLine
ldy #S.PS.hCS ldy #S.PS.hCS
sta (ZPQuickPtr3),y save CS hMem in TSKSLOT sta (ZPQuickPtr3),y save CS hMem in TSKSLOT
ldy #H.BIN.BIN.DS.SIZE+1 ldy #H.BIN.EXE.DS.SIZE+1
lda (ZPQuickPtr4),y Load DS.SIZE HI lda (ZPQuickPtr4),y Load DS.SIZE HI
tax tax
dey dey