A2osX/SBIN/SHELL.S.IO.txt

NEW
PREFIX /A2OSX.BUILD
AUTO 4,1
				.LIST OFF	
*--------------------------------------
IO.Reset		jsr IO.Reset.In
				jsr IO.Reset.Out
				jsr IO.Reset.Err
				rts
*--------------------------------------			
IO.Set.In		pha
				jsr IO.Reset.In
				ldy #S.PS.hStdIn
				lda (pPS),y
				>STA.G IO.hIn
				pla
				ldy #S.PS.hStdIn
				sta (pPS),y
				rts
*--------------------------------------			
IO.Reset.In		>LDA.G IO.hIn
				beq .8
				
				pha
				
				ldy #S.PS.hStdIn
				lda (pPS),y
				>SYSCALL fclose
				
				pla
				ldy #S.PS.hStdIn
				sta (pPS),y
				
				>STZ.G IO.hIn
.8				rts
*--------------------------------------
IO.Set.Out		pha
				jsr IO.Reset.Out
				ldy #S.PS.hStdOut
				lda (pPS),y
				>STA.G IO.hOut
				pla
				ldy #S.PS.hStdOut
				sta (pPS),y
				rts
*--------------------------------------			
IO.Reset.Out	>LDA.G IO.hOut
				beq .8
				
				pha
				
				ldy #S.PS.hStdOut
				lda (pPS),y
				>SYSCALL fclose
				
				pla
				ldy #S.PS.hStdOut
				sta (pPS),y
				
				>STZ.G IO.hOut
.8				rts
*--------------------------------------
IO.Set.Err		pha
				jsr IO.Reset.Err
				ldy #S.PS.hStdErr
				lda (pPS),y
				>STA.G IO.hErr
				pla
				ldy #S.PS.hStdErr
				sta (pPS),y
				rts
*--------------------------------------			
IO.Reset.Err	>LDA.G IO.hErr
				beq .8
				
				pha
				
				ldy #S.PS.hStdErr
				lda (pPS),y
				>SYSCALL fclose
				
				pla
				ldy #S.PS.hStdErr
				sta (pPS),y
				
				>STZ.G IO.hErr
.8				rts
*--------------------------------------
IO.PrintErrMsg	pha						Save EC for PrintF

				ldx L.ERR.Codes
				stx ZPPTR1
				ldx L.ERR.Codes+1
				stx ZPPTR1+1

				ldy #0

.1				cmp (ZPPTR1),y
				beq .2
				iny
				cpy #ERR.Count
				bne .1

.2				lda L.ERR.Messages
				sta ZPPTR1
				lda L.ERR.Messages+1
				sta ZPPTR1+1
				
.3				dey
				bmi .8

				lda (ZPPTR1)
				sec
				adc ZPPTR1
				sta ZPPTR1
				bcc .3
				inc ZPPTR1+1
				bra .3
				
.8				
				>PUSHW ZPPTR1
				pla
				>PUSHA
				>PUSHBI 3
				>PUSHW L.MSG.ERROR
				ldy #S.PS.hStdErr
				lda (pPS),y
				>SYSCALL fprintf
				rts
*--------------------------------------
MAN
SAVE /A2OSX.SRC/SBIN/SHELL.S.IO
LOAD /A2OSX.SRC/SBIN/SHELL.S
ASM