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A2osX/BIN/ASM.S.txt
Rémy GIBERT a9b7399902 Work In Progress (ASM)
2015-10-09 17:53:30 +02:00

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PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
.LIST OFF
.OP 65C02
.OR $2000
.TF /A2OSX.BOOT/BIN/ASM
*---------------------------------------
.INB INC/MACROS.I
.INB INC/A2OSX.I
.INB INC/A2OSX.API.I
.INB INC/LIBSTR.I
*---------------------------------------
ZPPtr1 .EQ ZPBIN
ZPPtr2 .EQ ZPBIN+2
*---------------------------------------
SYM.BLOCK.SIZE .EQ 4096
SYM.BLOCK.MAX .EQ 8
SRC.IN.DEPTH.MAX .EQ 7
SRC.LABEL.MAXLEN .EQ 32
*---------------------------------------
ERR.INV.ARGS .EQ $80
ERR.SRC.INV.TYPE .EQ $90
ERR.SRC.TOO.MANY.IN .EQ $91
ERR.SRC.UNEXP.EOF .EQ $92
ERR.SYNTAX.ERROR .EQ $A0
ERR.SYM.TOO.LONG .EQ $A1
ERR.VAL.TOO.BIG .EQ $A2
ERR.LINE.TOO.LONG .EQ $A3
ERR.INVALID.LABEL .EQ $A4
ERR.INVALID.DIRECTIVE .EQ $A5
ERR.MISSING.EXP .EQ $B0
ERR.EXP.SYN.ERROR .EQ $B1
ERR.INVALID.MACRO.DEF .EQ $E0
*--------------------------------------
* File Header (16 Bytes)
*--------------------------------------
CS.START cld
jmp (.1,x)
.DA #$61 6502,Level 1 (65c02)
.DA #1 BIN Layout Version 1
.DA 0
.DA CS.END-CS.START
.DA DS.END-DS.START Data Segment to Allocate
.DA 0
.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------
.1 .DA CS.INIT
.DA CS.RUN
.DA CS.DOEVENT
.DA CS.QUIT
L.LIBSTR .DA LIBSTR
L.MSG.HELP1 .DA MSG.HELP1
L.MSG.HELP2 .DA MSG.HELP2
L.MSG.SRCLINE .DA MSG.SRCLINE
L.MSG.ERROR .DA MSG.ERROR
L.MSG.PASS .DA MSG.PASS
L.MSG.SRC.FILE .DA MSG.SRC.FILE
L.MSG.OBJ.FILE .DA MSG.OBJ.FILE
L.SRC.BUFFER .DA SRC.BUFFER
L.T.DIRECTIVES .DA T.DIRECTIVES
J.DIRECTIVES .DA DIR.AC
.DA DIR.AS
.DA DIR.AT
.DA DIR.AZ
.DA DIR.BS
.DA DIR.DA
.DA DIR.DO
.DA DIR.DU
.DA DIR.DU
.DA DIR.ED
.DA DIR.EL
.DA DIR.EM
.DA DIR.EN
.DA DIR.EP
.DA DIR.EQ
.DA DIR.FI
.DA DIR.HS
.DA DIR.IN
.DA DIR.IN
.DA DIR.IN
.DA DIR.IN
.DA DIR.IN
.DA DIR.IN
.DA DIR.IN
.DA DIR.IN
.DA DIR.IN
.DA DIR.IN
.DA DIR.IN
.DA DIR.LI
.DA DIR.LI
.DA DIR.MA
.DA DIR.OP
.DA DIR.OR
.DA DIR.PG
.DA DIR.PH
.DA DIR.SE
.DA DIR.TA
.DA DIR.TF
.DA DIR.TI
.DA DIR.US
L.T.LI .DA T.LI
J.LI .DA DIR.LI.CON
.DA DIR.LI.COFF
.DA DIR.LI.XON
.DA DIR.LI.XOFF
.DA DIR.LI.ON
.DA DIR.LI.OFF
.DA 0
*---------------------------------------
CS.INIT >LDYA L.LIBSTR
>LOADLIBYA
sta hLIBSTR
ldy #S.PS.hARGS
lda (pPs),y
bne .1
>PUSHW L.MSG.HELP1
>LIBCALL hLIBSTR,LIBSTR.PRINTF
>PUSHW L.MSG.HELP2
>LIBCALL hLIBSTR,LIBSTR.PRINTF
lda #ERR.INV.ARGS
sec
rts
.1 >SYSCALL SYS.PStrCpyA
ldy #SRC.hFILENAME
sta (pData),y Store filename
lda #$80
ldy #ASM.LI.ON
sta (pData),y
lda #$00
ldy #ASM.LI.CON
sta (pData),y
ldy #ASM.LI.XON
sta (pData),y
lda (pPs)
ora #S.PS.F.EVENT Now accept events
sta (pPs)
clc
rts
.98 lda #ERR.INV.ARGS
sec
.99 rts
*--------------------------------------
CS.RUN ldy #bCANCEL
lda (pData),y
bne .99
ldy #bSTOP
lda (pData),y
bne .8
ldy #SRC.COUNT root file is already opened?
lda (pData),y
bne .10
ldy #ASM.PASS
lda (pData),y
inc
>PUSHA
>PUSHW L.MSG.PASS
>LIBCALL hLIBSTR,LIBSTR.PRINTF
ldy #SRC.hFILENAME
lda (pData),y
jsr SRC.OpenFileA
bcs .99
.10 jsr SRC.ReadLine
bcc .2
cmp #$4C End Of File?
bne .9
jsr SRC.FileClose
ldy #ASM.MA.ON Macro learning mode ?
lda (pData),y
bpl .22
lda #ERR.SRC.UNEXP.EOF
sec
rts
.22 ldy #SRC.COUNT end of root file ?
lda (pData),y
bne .8 no continue back to previous file
ldy #ASM.PASS
lda (pData),y End of pass #2 ??
bne .1
inc
sta (pData),y
clc
rts
.1 lda #0 End of assembly, exit with no error
.99 sec
rts
.2 jsr SRC.ParseLine
bcs .9
jsr SRC.PrintLine with CC, conditional
ldy #ASM.MA.ON Macro learning mode ?
lda (pData),y
bmi .10
.8 clc
rts
.9 pha
sec
jsr SRC.PrintLine with CS, print always
pla
pha
>PUSHA
>PUSHW SRC.LINENUM
>PUSHW L.MSG.ERROR
>LIBCALL hLIBSTR,LIBSTR.PRINTF
pla
sec
rts
*--------------------------------------
CS.DOEVENT ldy #S.EVT.hDEV is Event from active IN device?
lda (pEvent),y
ldy #S.PS.hINDEV
cmp (pPs),y
bne .9
lda (pEvent)
and #S.EVT.F.KEY is it a KEY event?
beq .9
ldy #S.EVT.DATAHI is it an O or SAPPLE key ?
lda (pEvent),y
bne .9
ldy #S.EVT.DATALO
lda (pEvent),y
cmp #$03 Ctrl-C
bne .1
lda #$FF
ldy #bCANCEL
sta (pData),y
bra .8
.1 cmp #$13 Ctrl-S
bne .8
ldy #bSTOP
lda (pData),y
eor #$FF
sta (pData),y
.8 clc
rts
.9 sec
rts
*--------------------------------------
CS.QUIT jsr SRC.FileClose
bne CS.QUIT
ldy #SRC.hFILENAME
lda (pData),y
beq .8
>SYSCALL SYS.FreeMemA
.8 lda hLIBSTR
>SYSCALL SYS.UnloadLibA
clc
rts
*---------------------------------------
LOAD.ASM.T
clc
rts
*---------------------------------------
*---------------------------------------
.INB BIN/ASM.S.SRC
.INB BIN/ASM.S.DIR
.INB BIN/ASM.S.SYM
*---------------------------------------
CS.END
SRC.DIR.MAXLEN .EQ 5 (DUMMY)
T.DIRECTIVES .HS 02
.AS "AC"
.HS 02
.AS "AS"
.HS 02
.AS "AT"
.HS 02
.AS "AZ"
.HS 02
.AS "BS"
.HS 02
.AS "DA"
.HS 02
.AS "DO"
.HS 02
.AS "DU"
.HS 05
.AS "DUMMY"
.HS 02
.AS "ED"
.HS 04
.AS "ELSE"
.HS 02
.AS "EM"
.HS 02
.AS "EN"
.HS 02
.AS "EP"
.HS 02
.AS "EQ"
.HS 03
.AS "FIN"
.HS 02
.AS "HS"
.HS 02
.AS "IN"
.HS 03
.AS "INB"
.HS 04
.AS "INB1"
.HS 04
.AS "INB2"
.HS 04
.AS "INB3"
.HS 04
.AS "INB4"
.HS 04
.AS "INB5"
.HS 04
.AS "INB6"
.HS 04
.AS "INB7"
.HS 04
.AS "INB8"
.HS 04
.AS "INB9"
.HS 02
.AS "LI"
.HS 04
.AS "LIST"
.HS 02
.AS "MA"
.HS 02
.AS "OP"
.HS 02
.AS "OR"
.HS 02
.AS "PG"
.HS 02
.AS "PH"
.HS 02
.AS "SE"
.HS 02
.AS "TA"
.HS 02
.AS "TF"
.HS 02
.AS "TI"
.HS 02
.AS "US"
.HS 00
*---------------------------------------
T.LI .HS 03
.AS "CON"
.HS 04
.AS "COFF"
.HS 03
.AS "XON"
.HS 04
.AS "XOFF"
.HS 02
.AS "ON"
.HS 03
.AS "OFF"
.HS 00
*---------------------------------------
LIBSTR >PSTRING "libstr.o"
MSG.HELP1 >CSTRING "A2osX-Macro Assembler (S-C MASM 3.0 Based)\n"
MSG.HELP2 >CSTRING "Usage : ASM <src file> [type TXT ($04) or S-C/BAS ($FA)]\n"
MSG.PASS >CSTRING "Pass:#%d\n"
MSG.SRC.FILE >CSTRING "Source File:%S\n"
MSG.OBJ.FILE >CSTRING "Object File:%S, Type=%02x\n"
MSG.SRCLINE >CSTRING "%05D-%s\n"
MSG.ERROR >CSTRING "%05D-Error:$%h\n"
hLIBSTR .BS 1
hFileName .BS 1
SRC.LINENUM .BS 2
SRC.BufPtr .BS 1
SRC.Label.Flags .BS 1
SRC.Label .BS SRC.LABEL.MAXLEN
SRC.LabelValue .BS 4
SRC.Directive.ID .BS 1
SRC.Keyword.ID .BS 1
SRC.ACC .BS 4
SRC.ACCTMP .BS 4
SRC.Buffer .BS 256
*--------------------------------------
.DUMMY
.OR 0
DS.START
bSTOP .BS 1
bCANCEL .BS 1
SRC.hFILENAME .BS 1
SRC.COUNT .BS 1
SRC.hREFNUMS .BS SRC.IN.DEPTH.MAX Store ref_num of opened files (Main, .INs & .INBs)
SRC.hBUFFERS .BS SRC.IN.DEPTH.MAX Store hMem to allocated buffers
SRC.hFILETYPES .BS SRC.IN.DEPTH.MAX Store file type of opened SRC files
DST.hFILENAME .BS 1
DST.hREFNUM .BS 1
DST.hBUFFER .BS 1
DST.hFILETYPE .BS 1
ASM.T.hFILENAME .BS 1
ASM.T.hFILE .BS 1 handle to ASM.T.xxxxx
ASM.PASS .BS 1
ASM.PH.ON .BS 1
ASM.LI.ON .BS 1
ASM.LI.CON .BS 1
ASM.LI.XON .BS 1
ASM.MA.ON .BS 1
ASM.PC .BS 4 32Bits PC
ASM.PC.PH .BS 4 32Bits PC saved for PH directive
SYM.BLOCKS .BS SYM.BLOCK.MAX
DS.END .ED
*---------------------------------------
MAN
SAVE BIN/ASM.S
ASM
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