PR#3
PREFIX /A2OSX.BUILD
LOMEM $A00
INC 1
AUTO 6
					.LIST OFF
					.OP	65C02
					.OR $2000
					.TF	/A2OSX.BUILD/BIN/DEV/ASM
*---------------------------------------
					.INB /A2OSX.BUILD/INC/MACROS.I
					.INB /A2OSX.BUILD/INC/A2OSX.I
*---------------------------------------
ZPPtr1				.EQ ZPBIN
ZPPtr2				.EQ ZPBIN+2
ZPPtr3				.EQ ZPBIN+4
ZPBlockPtr			.EQ ZPBIN+6
ZPSymbolPtr			.EQ ZPBIN+8
*---------------------------------------
ASM.T.AM			.EQ 0
ASM.T.R				.EQ 2
ASM.T.O				.EQ 4
*---------------------------------------
SRC.DO.MAXDEPTH		.EQ 8
SRC.IN.MAXDEPTH		.EQ 7
SRC.GLABEL.MAXLEN	.EQ 32
*---------------------------------------
SYM.GBLOCK.MAX		.EQ 96				96*256=24k
SYM.SBLOCK.MAX		.EQ 16				16*256=4k
SYM.PBLOCK.MAX		.EQ 32				32*256=8k
SYM.MBLOCK.MAX		.EQ 32				32*256=8k
*---------------------------------------
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.OOM				.EQ $93
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.INVALID.OPCODE	.EQ $A6
ERR.INVALID.AM.SYN	.EQ $A7
ERR.INVALID.AM.4.OC	.EQ $A8
ERR.RANGE			.EQ $A9
ERR.UNDEF.SYMBOL	.EQ $AA
ERR.SYMBOL.REDEFINE	.EQ $AB
ERR.TOO.MANY.DO		.EQ $AC
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.MSG.HELP			.DA MSG.HELP
L.MSG.SRCLINE		.DA MSG.SRCLINE
L.MSG.ERROR			.DA MSG.ERROR
L.MSG.SYMBOLS		.DA MSG.SYMBOLS
L.MSG.GSYMBOL		.DA MSG.GSYMBOL
L.MSG.LSYMBOL		.DA MSG.LSYMBOL
L.MSG.SUMMARY		.DA MSG.SUMMARY
L.MSG.PASS			.DA MSG.PASS
L.MSG.SRC.FILE		.DA MSG.SRC.FILE
L.MSG.OBJ.FILE		.DA MSG.OBJ.FILE
L.MSG.T.FILE		.DA MSG.T.FILE
L.SRC.AM.StrBuf		.DA SRC.AM.StrBuf
L.SRC.GLabel.Flags	.DA SRC.GLabel.Flags
L.SRC.GLabel.Len	.DA SRC.GLabel.Len
L.SRC.ELabel.Flags	.DA SRC.ELabel.Flags
L.SRC.ELabel.Len	.DA SRC.ELabel.Len
L.SRC.BUFFER		.DA SRC.BUFFER
L.ASM.T.FILENAME	.DA ASM.T.FILENAME
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
J.EXP.OP			.DA EXP.OP.EOR ^!|&<=>+-*/
					.DA EXP.OP.ORA
					.DA EXP.OP.ORA
					.DA EXP.OP.AND
					.DA EXP.OP.LOW
					.DA EXP.OP.EQU
					.DA EXP.OP.GRT
					.DA EXP.OP.ADD
					.DA EXP.OP.SUB
					.DA EXP.OP.MUL
					.DA EXP.OP.DIV	
					.DA 0
*---------------------------------------
CS.INIT				>SYSCALL GetArgC
					cmp #1
					beq .99					No arg, new file....
					
					lda #1
					>SYSCALL GetArgA
					>SYSCALL GetFullPathYA
					
					txa
					ldy #SRC.hFILENAME
					sta (pData),y
					

					jsr FIO.Init
					bcs .9

					jsr SYM.Init
					bcs .9

					jsr DIR.Init
					
*					lda (pPs)
*					ora #S.PS.F.EVENT
*					sta (pPs)
					clc
					rts
					
.99					>LDYA L.MSG.HELP
					>SYSCALL CPrintFYA
					lda #ERR.INV.ARGS
					sec
.9					rts
*--------------------------------------
CS.RUN				>SYSCALL GetC
					bcs .11				no char
				
					cmp #$03			Ctrl-C
					beq .99				Abort....
				
					cmp #$13			Ctrl-S
					bne .11

					ldy #bPause
					lda (pData),y
					eor	#$ff
					sta (pData),y
					bne .8
				
.11					ldy #SRC.COUNT		root file is already opened?
					lda (pData),y
					bne .10 
					
					ldy #ASM.PASS
					lda (pData),y
					inc
					>PUSHA
					>LDYA L.MSG.PASS
					>SYSCALL CPrintFYA
					
					ldy #SRC.hFILENAME
					lda (pData),y
					
					jsr FIO.OpenFileA
					bcs .99
					
.10					stz UsrBuf256
					jsr FIO.ReadLine
					bcc .2
					cmp #$4C			End Of File?
					bne .9
					
					jsr FIO.FileClose
					
					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					jsr SYM.Dump

					>LDYA L.MSG.SUMMARY
					>SYSCALL CPrintFYA
					
					lda #0				End of assembly, exit with no error
.99					sec		
					rts
					
.2					jsr SRC.PrintLine
					
					jsr SRC.ParseLine
					bcs .9
					
.8					clc
					rts

.9					pha
					jsr SRC.PrintLineErr
	
					pla
					pha
					>PUSHA
					>PUSHW SRC.LINENUM
					>LDYA L.MSG.ERROR
					>SYSCALL CPrintFYA
					pla
					sec
					rts
*--------------------------------------
CS.DOEVENT			sec
					rts
*--------------------------------------
CS.QUIT				jsr FIO.FileClose
					bne CS.QUIT 

					>DEBUG

					jsr SYM.Quit
					
					ldy #ASM.T.hMem
					lda (pData),y
					beq .1
					>SYSCALL FreeMemA
					
.1					ldy #SRC.hFILENAME
					lda (pData),y
					beq .8
					
					>SYSCALL FreeMemA
					
.8					clc
					rts
*---------------------------------------
					.INB /A2OSX.SRC/BIN/ASM.S.DIR
					.INB /A2OSX.SRC/BIN/ASM.S.EXP
					.INB /A2OSX.SRC/BIN/ASM.S.FIO
					.INB /A2OSX.SRC/BIN/ASM.S.SRC
					.INB /A2OSX.SRC/BIN/ASM.S.SYM
*---------------------------------------
CS.END
SRC.DIR.MAXLEN		.EQ 5
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
*---------------------------------------
MSG.HELP			>CSTR "A2osX-Macro Assembler (S-C MASM 3.0 Based)\r\nUsage : ASM <src file> [type TXT ($04) or S-C/BAS ($FA)]\r\n"
MSG.PASS			>CSTR "Pass:#%d\r\n"
MSG.SRC.FILE		>CSTR "Reading SRC File:%S\r\n"
MSG.OBJ.FILE		>CSTR "Writing OBJ File:%S, Type=%02x\r\n"
MSG.T.FILE			>CSTR "Loading CPU File:%S\r\n"
MSG.SRCLINE			>CSTR "%H:        %05D-%s\r\n"
MSG.ERROR			>CSTR "%05D-Error:$%h\r\n"
MSG.SYMBOLS			>CSTR "Symbol Table:\r\n"
MSG.GSYMBOL			>CSTR "$%H%H:%S"
MSG.LSYMBOL			>CSTR " .%d:+$%h"
MSG.SUMMARY			>CSTR "\r\nEnd Of Assembly.\r\n"
SRC.AM.RESERVED		>PSTR "[](),"
SRC.MOD.RESERVED	>PSTR "#/<>"
SRC.EXP.RESERVED	>PSTR "^!|&<=>+-*/"
ASM.T.DEFAULT		.AS ".T.6502"
ASM.T.FILENAMELEN	.BS 1
ASM.T.FILENAME		.BS 65

FIO.hFileName		.BS 1
FIO.hFullPath		.BS 1

EXP.Operator		.BS	1
EXP.Modifier		.BS 1

SYM.iCurGBlock.Save	.BS 1
SYM.pCurGBlock.Save	.BS 1

SRC.LINENUM			.BS 2
SRC.Directive.ID	.BS 1
SRC.Keyword.ID		.BS 1
SRC.ACC				.BS 4
SRC.ACCTMP			.BS 4
SRC.ARG				.BS 4
SRC.AM.ID			.BS 1
SRC.AM.StrBuf		.BS 32
SRC.AM.tmpBuf		.BS 32
SRC.Exp				.BS 128
SRC.BufPtr			.BS 1
SRC.BufPtrSave		.BS 1
SRC.Buffer			.BS 256
SRC.GLabel.New		.BS 1
SRC.GLabel.Flags	.BS 1
SRC.GLabel.Value	.BS 4
SRC.GLabel.Len		.BS 1
SRC.GLabel.Name		.BS	SRC.GLABEL.MAXLEN
SRC.LLabel.ID		.BS 1
SRC.LLabel.Offset	.BS 1
SRC.ELabel.Flags	.BS 1
SRC.ELabel.Value	.BS 4
SRC.ELabel.Len		.BS 1
SRC.ELabel.Name		.BS	SRC.GLABEL.MAXLEN
SRC.FLabel.Flags	.BS 1
SRC.FLabel.Value	.BS 4
SRC.FLabel.Len		.BS 1
SRC.FLabel.Name		.BS	SRC.GLABEL.MAXLEN
*--------------------------------------
					.DUMMY
					.OR 0
DS.START				
bPause				.BS 1

SRC.hFILENAME		.BS 1

SRC.COUNT			.BS 1
SRC.hFILES			.BS SRC.IN.MAXDEPTH
SRC.hFILETYPES		.BS SRC.IN.MAXDEPTH

DST.hFILENAME		.BS 1
DST.hREFNUM			.BS 1
DST.hBUFFER			.BS 1
DST.hFILETYPE		.BS 1

ASM.T.hMem			.BS 1

SYM.hCurSBlock		.BS 1
SYM.iCurSBlock		.BS	1
SYM.LastSBlock		.BS 1
SYM.hSBlocks		.BS SYM.SBLOCK.MAX

SYM.pCurGBlock		.BS 1
SYM.iCurGBlock		.BS	1
SYM.pLastGBlock		.BS 1
SYM.iLastGBlock		.BS 1
SYM.hGBlocks		.BS SYM.GBLOCK.MAX

SYM.hCurPBlock		.BS 1
SYM.iCurPBlock		.BS	1
SYM.LastPBlock		.BS	1
SYM.hPBlocks		.BS SYM.PBLOCK.MAX

SYM.hCurMBlock		.BS 1
SYM.iCurMBlock		.BS	1
SYM.LastMBlock		.BS	1
SYM.hMBlocks		.BS SYM.MBLOCK.MAX

SYM.DumpCount		.BS 1

DIR.Counter			.BS 2
DIR.Byte			.BS 1

ASM.PASS			.BS 1
ASM.MACRO.ON		.BS 1
ASM.DO.Count		.BS 1
ASM.DOELSE.Flag		.BS SRC.DO.MAXDEPTH
ASM.DO.ON			.BS 1
ASM.PH.ON			.BS 1
ASM.LI.ON			.BS 1
ASM.LI.CON			.BS 1
ASM.LI.XON			.BS 1
ASM.PC				.BS 4
ASM.PC.PH			.BS 4
ASM.PC.GLABEL		.BS 4
ASM.LOCAL.OFFSET	.BS 1
ASM.LOCAL.INVALID	.BS 1
ASM.SYM.ID			.BS 2
DS.END				.ED
*---------------------------------------
					.DO DS.END-DS.START>$FF
					ERROR:DS too big
					.FIN
*---------------------------------------
MAN
SAVE /A2OSX.SRC/BIN/ASM.S
ASM