Apple-2-SW/A2osX
1
0
Fork 0
mirror of https://github.com/A2osX/A2osX.git synced 2024-11-30 23:49:37 +00:00
Code Issues Projects Releases Wiki Activity
cdd2a24149
A2osX/SCMASM.30/SCI.S.LOADSAVE.txt

382 lines
9.2 KiB
Plaintext
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

NEW
AUTO 3,1
*--------------------------------------
DASH
LDA GET.SET.PARMS+4 GET FILE TYPE
CMP #$06 BINARY?
BEQ .3 ...YES, BRUN
CMP #$04 TEXT?
BNE .1 ...NO, TRY SYS
JMP EXEC ...YES, EXEC
*--------------------------------
.1 CMP #$FF SYS FILE?
BEQ .2 ...YES, BRUN IT
LDA #$0D "FILE TYPE MISMATCH"
SEC
RTS
*---RUN SYS FILE-----------------
.2 JSR CLOSE.ALL.FILES
JSR CLOSE.EXEC.FILE
LDA #0
STA VAL.A
LDX #6 RELEASE $8000-$B7FF
.4 STA BITMAP+16,X
DEX
BPL .4
LDA #$01 RELEASE $B800-$BEFF
STA BITMAP+23 B800.BFFF
LDA /$2000 A$2000
STA VAL.A+1
LDA #$FF T=SYS
STA VAL.T
LDA #$80 SIGNAL FOUND T,A, AND PATHNAME
STA FBITS+1
LDA #$05
STA FBITS
.3 JMP BRUN
*--------------------------------
WARM.DOS
JSR CLOSE.ALL.FILES
JSR CROUT
JMP SC.SOFT
*--------------------------------
* LOAD A SOURCE PROGRAM
*--------------------------------
LOAD
JSR ALLOCATE.UPPER.BUFFER
BCS .5
LDA #$01 READ
LDX #$FA FILE TYPE
JSR OPEN.A.FILE
BCS .5 ...ERROR
*---GET LENGTH OF FILE-----------
LDA SC.INFLAG
ASL
BPL .1 ...NOT .INBx
AND #$7F
STA MISC.PARMS+3
LDA #0
STA MISC.PARMS+2
BEQ .2 ...ALWAYS
.1 JSR MLI.D1 GET LENGTH OF FILE
BCS .5 ...ERROR
*---FIGURE LOAD ADDRESS----------
.2 SEC
LDA SC.HIMEM
SBC MISC.PARMS+2
STA READ.WRITE.PARMS+2
STA VAL.A
TAX
LDA SC.HIMEM+1
SBC MISC.PARMS+3
STA READ.WRITE.PARMS+3
STA VAL.A+1
TAY
*---CHECK FOR ROOM IN RAM--------
BMI .6 ADDRESS>$7FFF MEANS NO ROOM
TXA
CMP SC.LOMEM
TYA
SBC SC.LOMEM+1
BCC .6 ...BELOW LOMEM
*---READ FILE--------------------
LDA MISC.PARMS+2
STA READ.WRITE.PARMS+4
LDA MISC.PARMS+3
STA READ.WRITE.PARMS+5
JSR MLI.CA READ THE FILE
BCS .5
*---CLOSE UNLESS .INBx-----------
BIT SC.INFLAG
BVS .4 ...IT IS .INBx
.3 JSR MLI.CC CLOSE THE FILE
BCS .5
*--------------------------------
.4 LDX VAL.A+1
LDY VAL.A
STX SC.PP+1
STY SC.PP
.5 RTS
.6 LDA #$0E "PROGRAM TOO LARGE"
SEC
RTS
*--------------------------------
* SAVE SOURCE PROGRAM ON DISK
*--------------------------------
SAVE
BCC .1 ...FILE ALREADY HERE
LDA #$FA FILE TYPE "INT"
STA VAL.T
STA GET.SET.PARMS+4
LDA #$C3
STA GET.SET.PARMS+3
LDA SC.PP START OF PROGRAM
STA CREATE.PARMS+5
STA GET.SET.PARMS+5
LDA SC.PP+1
STA CREATE.PARMS+6
STA GET.SET.PARMS+6
JSR MAKE.A.FILE CREATE A NEW FILE
BCS .2 ...ERROR
.1 JSR ALLOCATE.UPPER.BUFFER
BCS .2
LDA #$02
LDX #$FA
JSR OPEN.A.FILE
BCS .2 ...ERROR
*---GET LENGTH-------------------
SEC GET LENGTH
LDA SC.HIMEM
SBC SC.PP
TAX
STA MISC.PARMS+2
LDA SC.HIMEM+1
SBC SC.PP+1
TAY
STA MISC.PARMS+3
LDA #0
STA MISC.PARMS+4
*---WRITE THE FILE---------------
LDA SC.PP
STA READ.WRITE.PARMS+2
LDA SC.PP+1
STA READ.WRITE.PARMS+3
STX READ.WRITE.PARMS+4
STY READ.WRITE.PARMS+5
JSR MLI.CB WRITE DATA ON FILE
BCS .2 ...ERROR
JSR MLI.D0 SET EOF (TRUNCATE OLD LONGER FILE)
BCS .2 ...ERROR
JSR MLI.CC CLOSE THE FILE
BCS .2 ...ERROR
*---UPDATE FILE INFO-------------
LDA SC.PP+1
LDX SC.PP
CMP GET.SET.PARMS+6
BNE .3
CPX GET.SET.PARMS+5
CLC
BNE .3
.2 RTS
.3 STX GET.SET.PARMS+5
STA GET.SET.PARMS+6
LDA #0
STA GET.SET.PARMS+10
STA GET.SET.PARMS+11
STA GET.SET.PARMS+12
STA GET.SET.PARMS+13
JMP SET.FILE.INFO
*--------------------------------
CREATE
LDX #0
LDY #0 AuxType = 0000 unless specified
LDA FBITS+1
BPL .1 ...no A-value specified
LDX VAL.A use A-value for AuxType
LDY VAL.A+1
.1 STX CREATE.PARMS+5
STY CREATE.PARMS+6
LDA FBITS
AND #$04
BNE MAKE.A.FILE
LDA #$0F
STA VAL.T
MAKE.A.FILE
LDA VAL.T
STA CREATE.PARMS+4
LDX #$C3
LDY #$01 SEEDLING
CMP #$0F
BNE .1
LDY #$0D DIRECTORY
.1 STX CREATE.PARMS+3
STY CREATE.PARMS+7
JMP MLI.C0 CREATE
*--------------------------------
RENAME LDA FBITS
AND #$02 PATH 2?
BEQ .1 ...NO, ERROR
JMP MLI.C2 RENAME
.1 JMP ERR.SYNTAX
*--------------------------------
LOCK JSR GET.FILE.INFO
BCS RTS3
LDA GET.SET.PARMS+3
AND #$3C
ORA #$01
BNE LKUNLK ...ALWAYS
UNLOCK JSR GET.FILE.INFO
BCS RTS3
LDA #$C3
ORA GET.SET.PARMS+3
LKUNLK STA GET.SET.PARMS+3
JMP SET.FILE.INFO
*--------------------------------
PREFIX
LDX #0
LDA FBITS+1
AND #$04
BNE .1 ...SPECIFIED S/D
LDA FBITS SEE IF SPECIFIED PATHNAME
LSR
BCC .3 ...NO, SO PRINT CURRENT PREFIX
.1 JMP MLI.C6 SET PREFIX
*---PRINT CURRENT PREFIX---------
.2 LDA PATHNAME.ONE.BUFFER+1,X
ORA #$80
JSR COUT
INX
.3 CPX PATHNAME.ONE.BUFFER
BCC .2
JSR CROUT
CLC
RTS3 RTS
*--------------------------------
NOPREFIX
LDA #0
STA PATHNAME.ONE.BUFFER
JMP MLI.C6 SET PREFIX
*--------------------------------
BSAVE
BCC .2 ...EXISTING FILE
LDA FBITS+1
AND #$B0 A-EL
CMP #$90 Require A and either E or L
BCC .3 ...Neither E nor L
LDA VAL.A
STA CREATE.PARMS+5
STA GET.SET.PARMS+5
LDA VAL.A+1
STA CREATE.PARMS+6
STA GET.SET.PARMS+6
*---T=BIN unless specified-------
LDA FBITS
AND #$04
BNE .1 ...TYPE SPECIFIED
LDA #$06 ...NO TYPE, ASSUME BINARY
STA VAL.T
.1 LDA VAL.T
STA GET.SET.PARMS+4
*--------------------------------
JSR MAKE.A.FILE
BCS .4
JSR GET.FILE.INFO
BCS .4
.2 LDA #$02
BNE B.COMMON ...ALWAYS
.3 LDA #$06 "PATH NOT FOUND"
SEC
.4 RTS
*--------------------------------
BRUN
JSR BLOAD
BCS .1
JSR .2
CLC
.1 RTS
.2 JMP (READ.WRITE.PARMS+2)
*--------------------------------
BLOAD
LDA #$01
B.COMMON
PHA
JSR ALLOCATE.UPPER.BUFFER
PLA
BCS .3
LDX #$06
JSR OPEN.A.FILE
BCS .3
LDX VAL.A
LDY VAL.A+1
LDA FBITS+1
BMI .1 ...ADDRESS SPECIFIED
LDX GET.SET.PARMS+5
LDY GET.SET.PARMS+6
LDA FBITS DON'T ALLOW DEFAULT ADDRESS
AND #$04 ON NON-BINARY FILES
BEQ .0 ...T not specified, so it is BIN
LDA VAL.T T specified, better be BIN or SYS
CMP #$06 is it BIN?
BEQ .0 ...yes, use AuxType value
CMP #$FF is it SYS?
BNE .4 ...no, error
LDX #$2000 ...type SYS, assume A$2000
LDY /$2000
.0 LDA FBITS+1
.1 STX READ.WRITE.PARMS+2
STY READ.WRITE.PARMS+3
LDX VAL.L
LDY VAL.L+1
AND #$30
BEQ .5
EOR #$30
BEQ .4
AND #$10
BEQ .7
LDA VAL.E
SEC
SBC VAL.A
TAX
LDA VAL.E+1
SBC VAL.A+1
TAY
INX
BNE .2
INY
.2 BCS .7
LDA #$02 "RANGE ERROR"
SEC
.3 RTS
*--------------------------------
.4 LDA #$0B "INVALID PARAMETER"
SEC
RTS
*--------------------------------
.5 JSR MLI.D1 GET EOF
BCS .6
LDX MISC.PARMS+2
LDY MISC.PARMS+3
LDA MISC.PARMS+4
BEQ .7
LDA #$0E "PROGRAM TOO LARGE"
.6 SEC
RTS
*--------------------------------
.7 STX READ.WRITE.PARMS+4
STY READ.WRITE.PARMS+5
LDA FBITS+1
AND #$40
BEQ .10
LDX #$02
.8 LDA VAL.B,X
STA MISC.PARMS+2,X
DEX
BPL .8
.9 JSR MLI.CE SET MARK
LDX COMMAND.NUMBER
BCC .10
CMP #$02
BNE .6
CPX #CN.BSAVE
BNE .6
JSR MLI.D0 SET EOF
BCC .9
RTS
*--------------------------------
.10 LDX COMMAND.NUMBER
CPX #CN.BSAVE
BNE .12 ...NOT BSAVE
JSR MLI.CB ...BSAVE
BCS .13 ...ERROR
.11 JMP MLI.CC
.12 JSR MLI.CA READ
BCC .11 ...GOOD, CLOSE
.13 RTS
*--------------------------------------
MAN
SAVE usr/src/scmasm.30/sci.s.loadsave
LOAD usr/src/scmasm.30/scmasm.s
ASM
Reference in New Issue View Git Blame Copy Permalink