A2osX/SBIN/GETTY.S.txt

PR#3
PREFIX /A2OSX.BUILD
NEW
INC 1
AUTO 6
				.LIST OFF
				.OP	65C02
				.OR	$2000
				.TF /A2OSX.BUILD/SBIN/GETTY
*--------------------------------------
				.INB /A2OSX.BUILD/INC/MACROS.I
				.INB /A2OSX.BUILD/INC/A2OSX.I
				.INB /A2OSX.BUILD/INC/NET.TELNET.I
*--------------------------------------
TIMEOUT.MAX		.EQ 10					1 sec.
*--------------------------------------
ZPTmp1			.EQ ZPBIN
*--------------------------------------
*			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.USAGE		.DA MSG.USAGE
L.MSG.TELNET.OPT	.DA MSG.TELNET.OPT
L.MSG.GREETINGS .DA MSG.GREETINGS
L.TERM			.DA TERM
				.DA 0					End Of Reloc Table
*--------------------------------------
CS.INIT			>SYSCALL GetArgC
				cmp #1
				bne .1
				
				>LDYA L.MSG.USAGE
				>SYSCALL PrintFYA
				lda #0
				sec
				rts
				
.1				lda #1
				>SYSCALL GetArgA
				
				>SYSCALL MkNodYA
				bcs .9

				ldy #S.PS.hStdIn
				sta (pPs),y
				ldy #S.PS.hStdOut
				sta (pPs),y
				ldy #S.PS.hStdErr
				sta (pPs),y
				
				lda #2
				>SYSCALL GetArgA
				bcs .9

				>SYSCALL ExpandPStrYA
				bcs .9

				txa
				
				ldy #hBinName
				sta (pData),y

				lda (pPs)
				ora #S.PS.F.EVENT		Now accept events
				sta (pPs)

				clc
.9				rts
*--------------------------------------
CS.RUN			jsr Init.Timeout

.66				>SYSCALL Sleep
				>SYSCALL GetC
				bcc .1
				bcs .66
*				jsr Wait.Timeout
*				bcc .66

*				jmp .2

				
.10				>SYSCALL Sleep
				>SYSCALL GetC
				bcs .1

				
				
.1				cmp #IAC
				beq .11
				
				jmp .2
				
.11				>SYSCALL Sleep
				>SYSCALL GetC
				bcs .11

				ldy #IAC.VERB
				sta (pData),y
				
*				jsr PRINT.DEBUG				
				
.12				>SYSCALL Sleep
				>SYSCALL GetC
				bcs .12
				
				ldy #IAC.OPT
				sta (pData),y
				
*				jsr PRINT.DEBUG
				
				ldy #IAC.VERB
				lda (pData),y
				cmp #SB
				bne .10
				
				ldy #IAC.OPT
				lda (pData),y
				cmp #TELOPT.TTYPE
				bne .15					only interested in Term Type, go get IAC,SE
				
.13				>SYSCALL Sleep
				>SYSCALL GetC
				bcs .13			
				
				cmp #SB.IS				not a valid reply, go get IAC,SE
				bne .15
				
				lda #0
				sta (pData)				reset IAC.TERM
				
.14				>SYSCALL Sleep
				>SYSCALL GetC
				bcs .14			
				
				cmp #IAC
				beq .16					end of DATA, go wait SE
				
				pha
				lda (pData)
				inc
				tay
				sta (pData)
				pla
				
				sta (pData),y
				bra .14
				
.15				>SYSCALL Sleep
				>SYSCALL GetC
				bcs .15
				
				cmp #IAC
				bne .15
				
.16				>SYSCALL Sleep
				>SYSCALL GetC
				bcs .16
				
				cmp #SE
				bne .16
				
				
				jmp .10
				
.2				
				
				lda (pData)
				beq .5
				>PUSHW pData
				>PUSHW L.TERM
				>SYSCALL SetEnv
				
.5				

				>LDYA L.MSG.TELNET.OPT
				>SYSCALL PrintFYA
				bcs *

				>LDYA L.MSG.GREETINGS
				>SYSCALL PrintFYA
				
				bcs .8					unable to send greetings...loop..
				
				ldy #hBinName
				lda (pData),y
				>SYSCALL GetMemPtrA
				>SYSCALL ExecProcessNewEnvYA
.9				rts

.8				clc
				rts
*--------------------------------------
CS.DOEVENT		lda (pEvent)
				bpl .9					is it a TIMER event?

				ldy #TimeOut
				lda (pData),y
				beq .9
				
				dec 
				sta (pData),y
				
.9				sec						do not discard TIMER event
				rts	
*--------------------------------------
CS.QUIT			ldy #hBinName
				lda (pData),y
				beq .1
				>SYSCALL FreeMemA
				
.1				ldx #DEVMGR.CLOSE
*				jsr pDevJmp
				
				clc
				rts
*--------------------------------------
PRINT.DEBUG		phx
				phy
				pha
				
				lda #2
				>SYSCALL GetDevByIDA
				bcs .9
				
				>STYA ZPTmp1
				lda (ZPTmp1)
				sta PRINT.DEBUG.JMP+1
				ldy #1
				lda (ZPTmp1),y
				sta PRINT.DEBUG.JMP+2
				
				lda #'{'
				ldx #DEVMGR.WRITE
				jsr PRINT.DEBUG.JMP

				pla
				pha
				lsr
				lsr
				lsr
				lsr
				tax
				lda PRINT.DEBUG.CHAR,x
				
				ldx #DEVMGR.WRITE
				jsr PRINT.DEBUG.JMP
				
				pla
				pha
				and #$0F
				tax
				lda PRINT.DEBUG.CHAR,x
				
				ldx #DEVMGR.WRITE
				jsr PRINT.DEBUG.JMP
				
				lda #'}'
				ldx #DEVMGR.WRITE
				jsr PRINT.DEBUG.JMP
				
.9				pla
				ply
				plx
				rts
PRINT.DEBUG.JMP	jmp $ffff				
*--------------------------------------
Init.Timeout	ldy #TimeOut
				lda #TIMEOUT.MAX
				sta (pData),y
				rts
*--------------------------------------
Wait.TimeOut	sec
				ldy #TimeOut
				lda (pData),y
				beq .9
				clc
.9				rts
*--------------------------------------
CS.END
PRINT.DEBUG.CHAR	.AS "0123456789ABCDEF"
MSG.USAGE		>CSTR "GETTY <DEV> <PROGRAM>\r\n"
MSG.TELNET.OPT	
*				.DA #IAC,#WILL,#TELOPT.BINARY
*				.DA #IAC,#DO,#TELOPT.LINEMODE
*				.DA #IAC,#SB,#TELOPT.LINEMODE,#1,#0,#IAC,#SE
				.DA #IAC,#DONT,#TELOPT.ECHO
				.DA #IAC,#WILL,#TELOPT.ECHO
				.DA #IAC,#WILL,#TELOPT.SGA
				.DA #IAC,#DO,#TELOPT.SGA
*				.DA #IAC,#DO,#TELOPT.NAWS
				.DA #IAC,#DO,#TELOPT.TTYPE
				.DA #IAC,#SB,#TELOPT.TTYPE,#SB.SEND,#IAC,#SE
				.DA #0
MSG.GREETINGS	>CSTR "\r\nA2osX-GeTTY\r\n"
TERM			>PSTR "TERM"
* \e[12h
*--------------------------------------
				.DUMMY
				.OR 0
DS.START
IAC.TERM		.BS 64				
hBinName		.BS 1
TimeOut			.BS 1
IAC.VERB		.BS 1
IAC.OPT			.BS 1
DS.END			.ED
MAN
SAVE /A2OSX.SRC/SBIN/GETTY.S
ASM