Added a pfs_remove() function and a pfs_seek() stub to the Commodore platforms.
- "Normalized" some Assembly code. - Implemented CFS_APPEND in pfs_open(). - Made CFS_WRITE work in VICE's virtual disk/file system.
This commit is contained in:
Oliver Schmidt
parent
3b9fa19a66
commit
4f28289df2
2
.gitignore
vendored
2
.gitignore
vendored
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@ -80,7 +80,7 @@ contiki-cc2530dk.lib
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*.dsc
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#cc65 build artifacts
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*.S
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*.s
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*.eth
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*.dsk
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*.po
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@ -27,7 +27,7 @@
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*
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* Author: Oliver Schmidt <ol.sc@web.de>
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*
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*/
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@ -35,11 +35,13 @@
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#ifndef PFS_H_
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#define PFS_H_
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int __fastcall__ pfs_open(const char* name, int flags);
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void __fastcall__ pfs_close(int fd);
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int __fastcall__ pfs_read(int fd, void* buf, unsigned int len);
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int __fastcall__ pfs_write(int fd, void* buf, unsigned int len);
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int __fastcall__ pfs_seek(int fd, int offset, int whence);
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int __fastcall__ pfs_remove(const char *name);
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#include <sys/types.h>
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int __fastcall__ pfs_open(const char *name, int flags);
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void __fastcall__ pfs_close(int fd);
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int __fastcall__ pfs_read(int fd, void *buf, unsigned int len);
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int __fastcall__ pfs_write(int fd, const void *buf, unsigned int len);
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off_t __fastcall__ pfs_seek(int fd, off_t offset, int whence);
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int __fastcall__ pfs_remove(const char *name);
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#endif /* PFS_H_ */
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@ -31,7 +31,7 @@
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# Author: Oliver Schmidt <ol.sc@web.de>
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#
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CONTIKI_TARGET_SOURCEFILES += lseek.c pfs.S pfs_write.S
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CONTIKI_TARGET_SOURCEFILES += lseek.c pfs.S pfs_remove.S pfs_seek.S pfs_write.S
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CONTIKI_CPU = $(CONTIKI)/cpu/6502
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include $(CONTIKI_CPU)/Makefile.6502
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@ -29,99 +29,212 @@
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; This file is part of the Contiki operating system.
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;
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; Author: Kajtar Zsolt <soci@c64.rulez.org>
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; Author: Greg King <gregdk@users.sf.net>
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;
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;---------------------------------------------------------------------
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.define F_IDE64 0 ; support IDE64, not on C128
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.define F_IDE64 0 ; C128 doesn't have IDE64
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.constructor init_pfs
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.destructor done_pfs
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.importzp ptr1, ptr2, ptr3, sp
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.import curunit, __filetype, popax, addysp, subysp
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.export pfs_rwcommon, pfs_rwsetflags, pfs_rwcommonend
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.if F_IDE64
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.export ide64_rwprepare, ide64_rwfinish
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.endif
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.export _pfs_open, _pfs_read, _pfs_close
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.constructor init_pfs
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.destructor done_pfs
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.importzp sp, ptr1, ptr2, ptr3
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.import curunit, __filetype, popax, addysp, subysp
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.export pfs_rwcommon, pfs_rwsetflags, pfs_rwcommonend
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.if F_IDE64
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.export ide64_rwprepare, ide64_rwfinish
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.endif
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.export cmdc, flags
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.export pfs_makename, pfs_scratch
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.export _pfs_open, _pfs_read, _pfs_close
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;---------------------------------------------------------------------
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F_EOF = $80
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F_NBLK = $40
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F_OPEN = $20
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F_MAXLEN = 80 ;max filename length
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ST = $90 ;status
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FN = $BB ;filename
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FNL = $B7 ;filenamelength
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LF = $B8 ;logical file number
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SA = $B9 ;secondary address
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OPEN = $FFC0
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CLOSE = $FFC3
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CHKIN = $FFC6
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CHKOUT = $FFC9
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CLRCHN = $FFCC
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CHRIN = $FFCF
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CHROUT = $FFD2
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SETLFS = $FFBA
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SETNAM = $FFBD
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CLALL = $FFE7
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WRITE = $DEF1
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READ = $DEF4
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MAXLEN = 80 ;maximum filename length
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; Flag bits
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F_EOF = %10000000 ;end of file
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F_NBLK = %01000000 ;block read/write not available
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F_OPEN = %00100000
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; Kernal variables
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ST := $90 ;status
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FN := $BB ;filename
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FNL := $B7 ;filename length
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LF := $B8 ;logical file number
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OPNVec := $031A ;address vector to OPEN function's code
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; IDEDOS function
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READ := $DEF4
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; Kernal functions
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SETLFS := $FFBA
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SETNAM := $FFBD
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OPEN := $FFC0
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CLOSE := $FFC3
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CHKIN := $FFC6
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CHKOUT := $FFC9
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CLRCHN := $FFCC
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CHRIN := $FFCF
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CHROUT := $FFD2
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;---------------------------------------------------------------------
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.data
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illchr: .byte $3A, $2A, $3F, $3D ;illegal chars
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pw: .byte $2C, $50, $2C, $57 ;,p,w
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; illchr and sw must stay together because the comma, also, is illegal in names.
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illchr: .byte "*?:=" ;illegal chars
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sw: .byte ",s,w"
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cmdc: .byte 0
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flags: .res 10
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flags: .res 10 ;(Kernal allows only ten open files)
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;---------------------------------------------------------------------
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.segment "ONCE"
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init_pfs:
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ldy #F_MAXLEN+8
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jsr subysp ;allocate
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lda #0
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sta FNL ;no name
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ldy #15-1
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jsr open2 ;open command channel
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ldy #MAXLEN + 8
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jsr subysp ;allocate because open2 will free it
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lda #0 ;no name, file number 1
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sta FNL
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ldy #15 - 1 ;secondary address 15
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jsr open2 ;open command channel
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sta cmdc
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rts
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;---------------------------------------------------------------------
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.code
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error3: jmp error
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_pfs_open:
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sta ptr2
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; Pop and store name
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sta ptr2 ;save open-mode flags
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; Get and store name
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jsr popax
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jsr pfs_makename
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lda FNL
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beq error ;must have a filename
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lda #2 - 1 ;file number
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tay ;secondary address
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open2: sta ptr2
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sty ptr2 + 1
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next: inc ptr2 ;next file number
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ldx ptr2 ;file number
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cpx #.sizeof(flags) + 1
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bcs error ;no more files
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lda flags - 1,x
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bne next ;already used
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lda ptr2 + 1
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bne nextsa
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inx
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stx ptr2 + 1
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nextsa: inc ptr2 + 1 ;next channel
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retr: lda ptr2 ;file number
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ldx curunit
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ldy ptr2 + 1 ;secondary address (channel number)
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jsr SETLFS
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jsr OPEN ;open a pair of files (in computer and drive)
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bcs oerr ;branch if could not open computer file
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ldx cmdc
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beq opok ;branch if error channel just was openned
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jsr CHKIN
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bcs error
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jsr CHRIN
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pha ;first digit of error code
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jsr CHRIN
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sta ptr1 ;second digit
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@L4: jsr CHRIN ;flush status message
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lda ST
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beq @L4
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jsr CLRCHN
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pla
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cmp #'2'
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bcc opok ;no serious error
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pha
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lda ptr2
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jsr CLOSE ;close computer file
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pla
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ldx ptr1
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cmp #'7' ;no channel?
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bne nnoc
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cpx #'0'
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bne error ;not "no channel"
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lda ptr2 + 1
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cmp #14
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bcc nextsa ;try next channel
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bcs error ;give up
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opok: ldx ptr2
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lda #F_OPEN
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sta flags - 1,x
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txa ;OK, return file number
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ret0: ldx #>$0000
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ret: ldy #MAXLEN + 8 ;free filename space
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jmp addysp
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oerr: dec ptr2 + 1
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cmp #2 ;already open,
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beq next ;retry with next
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error: lda #<-1
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tax ;failed
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bne ret
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nnoc: inc ptr3
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bne error ;no retry
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cmp #'6'
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bne error ;not "file exists"
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cpx #'3'
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bne error
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jsr pfs_scratch
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bcc retr
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bcs error ;branch always
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pfs_scratch:
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ldx cmdc
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jsr CHKOUT
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bcs @L5
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ldy #1
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lda #'s' ;scratch
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@L4: jsr CHROUT
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lda (FN),y
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iny
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cmp #','
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bne @L4
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lda #$0D ;carriage return
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jsr CHROUT
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jsr CLRCHN
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clc ;carry = 0: OK
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@L5: rts ;carry = 1: error
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pfs_makename:
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sta FN
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stx FN+1 ;filename (kernal)
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ldy #F_MAXLEN+8
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jsr subysp ;allocate name
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ldy #255
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stx FN+1 ;Kernal filename pointer
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ldy #MAXLEN + 8
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jsr subysp ;allocate name space
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; Validate the name; and, find its length
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ldy #<-1
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sty ptr3
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sty ptr1
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@L10: iny
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cpy #F_MAXLEN
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bcs error3 ;too long...
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ldx #4 ;4+1 (comma)
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cpy #MAXLEN
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bcs badchr ;too long
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lda (FN),y
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ldx #.sizeof(illchr); 4 + 1 (includes comma)
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@L12: cmp illchr,x
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beq error3 ;illegal char?
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beq badchr ;illegal char
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dex
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bpl @L12
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cmp #$2F
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cmp #'/'
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bne @L11
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sty ptr1 ;last slash
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@L11: lda (FN),y
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sty ptr1 ;last slash
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@L11: tax ;test for '\0'
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bne @L10
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sty FNL
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cpy #0
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beq badchr ;no name
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tay
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tax
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lda #$30 ;this partition
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tay ;zero index reg.
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lda #'0' ;drive 0 or current partition
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sta (sp),y
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iny
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inc ptr1
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beq nopath
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lda #$2F
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lda #'/'
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@L13: sta (sp),y
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iny
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lda (FN,x)
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@ -130,158 +243,67 @@ _pfs_open:
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inc FN+1
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@L14: cpy ptr1
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bcc @L13
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lda #$2F
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;lda #'/' ; (.A already has a slash)
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sta (sp),y
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iny
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nopath: lda #$3A
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nopath: lda #':'
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@L16: sta (sp),y
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iny
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lda (FN,x)
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inc FN
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bne @L15
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inc FN+1
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@L15: ora #0
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@L15: ora #$00 ;test for '\0'
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bne @L16
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lsr ptr2
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bcs ro ;read only
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bcs ro ;read-only (read-write not supported)
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lda __filetype
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sta pw+1 ;set filetype
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ldx #252
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@L20: lda pw-252,x
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sta (sp),y ;write
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sta sw + 1 ;set filetype
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lsr ptr2
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lda #'w' ;write-only
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lsr ptr2
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bcc write
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lda #'a' ;append
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write: sta sw + 3 ;set mode
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ldx #$0100 - .sizeof(sw)
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@L20: lda sw - ($0100 - .sizeof(sw)),x
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sta (sp),y
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iny
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inx
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bne @L20
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ro: tya ;name length (kernal)
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ro: tya ;pathname length
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ldx sp
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ldy sp+1
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jsr SETNAM
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namset: jmp SETNAM
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lda #0 ;file number
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tay ;secondary address
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open2: sta ptr2
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sty ptr2+1
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|
||||
next: inc ptr2 ;next file number
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ldx ptr2 ;file number
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cpx #11
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bcs error ;no more files
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lda flags-1,x
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bne next ;already used
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||||
lda ptr2+1
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||||
bne nextsa
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||||
inx
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||||
stx ptr2+1
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nextsa: inc ptr2+1 ;next channel
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||||
retr: lda ptr2 ;file number
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ldx curunit
|
||||
ldy ptr2+1 ;secondary address
|
||||
jsr SETLFS
|
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jsr OPEN ;open
|
||||
bcs oerr
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||||
ldx cmdc
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||||
beq opok ;error channel open
|
||||
jsr CHKIN
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||||
bcs error
|
||||
jsr CHRIN
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||||
pha
|
||||
jsr CHRIN
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sta ptr1
|
||||
@L4: jsr CHRIN
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||||
lda ST
|
||||
beq @L4
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||||
jsr CLRCHN
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||||
pla
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tax
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||||
lsr
|
||||
cmp #$18 ;no serious error
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beq opok
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||||
txa
|
||||
pha
|
||||
lda ptr2
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||||
jsr CLOSE ;close
|
||||
pla
|
||||
ldx ptr1
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||||
cmp #$37 ;no channel?
|
||||
bne nnoc
|
||||
cpx #$30
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||||
bne error ;not no channel
|
||||
lda ptr2+1
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||||
cmp #14
|
||||
bcc nextsa ;try next channel
|
||||
bcs error ;give up
|
||||
|
||||
opok: ldx ptr2
|
||||
lda #F_OPEN
|
||||
sta flags-1,x
|
||||
txa ;ok, return file number
|
||||
ldx #0
|
||||
ret: ldy #F_MAXLEN+8 ; free filename
|
||||
jmp addysp
|
||||
|
||||
oerr: dec ptr2+1
|
||||
cmp #2 ;already open,
|
||||
beq next ;retry with next
|
||||
|
||||
error: lda #$FF
|
||||
tax ;failed
|
||||
bne ret
|
||||
|
||||
nnoc: inc ptr3
|
||||
bne error ;no retry
|
||||
cmp #$36
|
||||
bne error ;no exists
|
||||
cpx #$33
|
||||
bne error
|
||||
ldx cmdc
|
||||
jsr CHKOUT
|
||||
bcs error
|
||||
lda FNL
|
||||
sec
|
||||
sbc #5
|
||||
tax
|
||||
lda #$53 ;scratch
|
||||
jsr CHROUT
|
||||
ldy #1
|
||||
@L4: lda (FN),y
|
||||
iny
|
||||
jsr CHROUT
|
||||
dex
|
||||
bne @L4
|
||||
lda #$3D
|
||||
jsr CHROUT
|
||||
iny
|
||||
lda (FN),y
|
||||
jsr CHROUT
|
||||
lda #$0d
|
||||
jsr CHROUT
|
||||
jsr CLRCHN
|
||||
jmp retr
|
||||
badchr: lda #0
|
||||
beq namset
|
||||
|
||||
.proc _pfs_read
|
||||
jsr pfs_rwcommon ; pop params, check handle
|
||||
beq error2 ; not open
|
||||
|
||||
bmi eof
|
||||
.if F_IDE64
|
||||
asl
|
||||
|
||||
.if F_IDE64
|
||||
asl a
|
||||
bmi nblk ; no block operation
|
||||
|
||||
jsr CHKIN
|
||||
bcs error2
|
||||
|
||||
|
||||
; check support
|
||||
jsr ide64_rwprepare
|
||||
bcs norm
|
||||
|
||||
; read
|
||||
|
||||
; do a block read
|
||||
jsr READ
|
||||
bcs nosup
|
||||
jmp ide64_rwfinish
|
||||
|
||||
nosup: lda #F_NBLK
|
||||
jsr pfs_rwsetflags
|
||||
.endif
|
||||
.endif
|
||||
|
||||
; Valid lfn. Make it the input file
|
||||
nblk: jsr CHKIN
|
||||
|
|
@ -292,15 +314,15 @@ norm: ldy #0
|
|||
@L3: inc ptr1
|
||||
bne @L0
|
||||
inc ptr1+1
|
||||
beq done ; branch always
|
||||
beq done
|
||||
|
||||
; Read the next byte
|
||||
@L0: jsr CHRIN
|
||||
tax ; save the input byte
|
||||
|
||||
lda ST ; read the IEEE status
|
||||
cmp #1 ; save it
|
||||
and #%10111111 ; check anything but the EOI bit
|
||||
lda ST ; read the file status
|
||||
cmp #$01 ; save it
|
||||
and #%10111111 ; check anything but the EOF bit
|
||||
bne error5 ; assume device not present
|
||||
|
||||
; Store the byte just read
|
||||
|
|
@ -310,45 +332,60 @@ norm: ldy #0
|
|||
bne @L1
|
||||
inc ptr2+1 ; *buf++ = A;
|
||||
|
||||
; Get the status again and check the EOI bit
|
||||
@L1: bcc @L3 ; loop if no end of file
|
||||
; Get the status again; and, check the EOF bit
|
||||
@L1: bcc @L3 ; loop if not end of file
|
||||
|
||||
; Set the EOI flag and bail out
|
||||
; Set the EOF flag; and, bail out
|
||||
lda #F_EOF
|
||||
jsr pfs_rwsetflags
|
||||
|
||||
; Read done, close the input channel
|
||||
done: jsr CLRCHN ; clrchn
|
||||
; Read done; cancel the input channel
|
||||
done: jsr CLRCHN
|
||||
|
||||
; Return the number of chars read
|
||||
eof: jmp pfs_rwcommonend
|
||||
eof:
|
||||
; jmp pfs_rwcommonend ; (fall through)
|
||||
.endproc
|
||||
|
||||
.proc pfs_rwcommonend
|
||||
lda ptr2
|
||||
sec
|
||||
sbc ptr3
|
||||
pha
|
||||
lda ptr2+1
|
||||
sbc ptr3+1
|
||||
tax
|
||||
pla
|
||||
rts
|
||||
.endproc
|
||||
|
||||
; Error entry, file is not open
|
||||
done_pfs:
|
||||
ldx #10
|
||||
@L2: ldy flags-1,x ; file open?
|
||||
ldx #.sizeof(flags)
|
||||
@L2: ldy flags - 1,x ; file open?
|
||||
beq @L1
|
||||
txa
|
||||
jsr _pfs_close
|
||||
jsr close1
|
||||
@L1: dex
|
||||
bne @L2
|
||||
bne @L2
|
||||
rts
|
||||
|
||||
error5: jsr CLRCHN ; clrchn
|
||||
error5: jsr CLRCHN
|
||||
|
||||
error2: ldx #255
|
||||
; Error entry, file is not open
|
||||
error2: ldx #>-1
|
||||
txa
|
||||
rts
|
||||
|
||||
_pfs_close:
|
||||
pha
|
||||
jsr CLOSE ;close
|
||||
cmp #.sizeof(flags) + 1
|
||||
bcs close0 ; don't close if not valid file number
|
||||
close1: pha
|
||||
jsr CLOSE
|
||||
pla
|
||||
tax
|
||||
lda #0
|
||||
sta flags-1,x
|
||||
rts
|
||||
lda #$00
|
||||
sta flags - 1,x
|
||||
close0: rts ; .X = file number
|
||||
|
||||
.proc pfs_rwcommon
|
||||
eor #$FF
|
||||
|
|
@ -366,70 +403,56 @@ _pfs_close:
|
|||
|
||||
jsr popax ; get the handle
|
||||
sta LF
|
||||
lda #0
|
||||
beq pfs_rwsetflags
|
||||
lda #$00
|
||||
; beq pfs_rwsetflags ; (fall through)
|
||||
.endproc
|
||||
|
||||
.if F_IDE64
|
||||
.proc ide64_rwprepare
|
||||
sec
|
||||
lda ptr1+1
|
||||
eor #255
|
||||
beq small ; too small, not worth it
|
||||
tay
|
||||
lda ptr1 ; setup registers
|
||||
eor #255
|
||||
tax
|
||||
lda $031B
|
||||
eor #$DE
|
||||
bne noide ; open vector set?
|
||||
lda $DE60
|
||||
eor #$49
|
||||
bne noide ; check identification
|
||||
lda $DE61
|
||||
eor #$44
|
||||
bne noide
|
||||
lda $DE62
|
||||
eor #$45
|
||||
bne noide
|
||||
clc
|
||||
lda #ptr2
|
||||
small: rts
|
||||
|
||||
noide: lda #F_NBLK
|
||||
bne pfs_rwsetflags
|
||||
.endproc
|
||||
.endif
|
||||
|
||||
.proc pfs_rwsetflags
|
||||
ldx LF
|
||||
ora flags-1,x
|
||||
sta flags-1,x
|
||||
ora flags - 1,x
|
||||
sta flags - 1,x
|
||||
rts
|
||||
.endproc
|
||||
|
||||
.if F_IDE64
|
||||
.if F_IDE64
|
||||
.proc ide64_rwprepare
|
||||
sec ; assume it won't use IDEDOS
|
||||
lda ptr1+1
|
||||
eor #$FF ; convert -count-1 back to count
|
||||
beq small ; too small, not worth it
|
||||
tay
|
||||
lda ptr1 ; set up registers
|
||||
eor #$FF
|
||||
tax
|
||||
lda OPNVec+1
|
||||
eor #>$DE00
|
||||
bne noide ; is OPEN vector set to IDEDOS?
|
||||
lda $DE60
|
||||
eor #'i'
|
||||
bne noide ; check identification
|
||||
lda $DE61
|
||||
eor #'d'
|
||||
bne noide
|
||||
lda $DE62
|
||||
eor #'e'
|
||||
bne noide
|
||||
clc ; it will use IDEDOS
|
||||
lda #ptr2
|
||||
small: rts
|
||||
|
||||
noide: lda #F_NBLK
|
||||
bne pfs_rwsetflags
|
||||
.endproc
|
||||
|
||||
.proc ide64_rwfinish
|
||||
txa
|
||||
txa ; push .YX
|
||||
pha
|
||||
tya
|
||||
pha
|
||||
jsr CLRCHN
|
||||
pla
|
||||
tax
|
||||
pla
|
||||
rts
|
||||
.endproc
|
||||
.endif
|
||||
|
||||
.proc pfs_rwcommonend
|
||||
lda ptr2
|
||||
sec
|
||||
sbc ptr3
|
||||
pha
|
||||
lda ptr2+1
|
||||
sbc ptr3+1
|
||||
pla ; pull .XA
|
||||
tax
|
||||
pla
|
||||
rts
|
||||
.endproc
|
||||
.endif
|
||||
|
|
|
|||
59
platform/c128/lib/pfs_remove.S
Normal file
59
platform/c128/lib/pfs_remove.S
Normal file
|
|
@ -0,0 +1,59 @@
|
|||
;
|
||||
; Copyright (c) 2016, Greg King
|
||||
; All rights reserved.
|
||||
;
|
||||
; Redistribution and use in source and binary forms, with or without
|
||||
; modification, are permitted provided that the following conditions
|
||||
; are met:
|
||||
; 1. Redistributions of source code must retain the above copyright
|
||||
; notice, this list of conditions, and the following disclaimer.
|
||||
; 2. Redistributions in binary form must reproduce the above copyright
|
||||
; notice, this list of conditions, and the following disclaimer in the
|
||||
; documentation and/or other materials provided with the distribution.
|
||||
; 3. Neither the name of the author nor the names of contributors
|
||||
; may be used to endorse or promote products derived from this software
|
||||
; without specific prior written permission.
|
||||
;
|
||||
; THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"; AND,
|
||||
; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
; OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
; LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
; OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
; SUCH DAMAGE.
|
||||
;
|
||||
; This file is part of the Contiki operating system.
|
||||
;
|
||||
; Author: Greg King <gregdk@users.sf.net>
|
||||
;
|
||||
;---------------------------------------------------------------------
|
||||
.importzp ptr2
|
||||
.import addysp
|
||||
.import pfs_makename, pfs_scratch
|
||||
|
||||
.export _pfs_remove
|
||||
;---------------------------------------------------------------------
|
||||
MAXLEN = 80 ; max. filename length
|
||||
|
||||
FNL := $B7 ; filename length
|
||||
;---------------------------------------------------------------------
|
||||
.proc _pfs_remove
|
||||
asl ptr2 ; force pfs_makename to format for pfs_scratch
|
||||
jsr pfs_makename
|
||||
ldx FNL
|
||||
beq error ; no name
|
||||
|
||||
jsr pfs_scratch
|
||||
ldx #>$0000
|
||||
bcs error
|
||||
ret: txa
|
||||
ldy #MAXLEN + 8 ; free filename space
|
||||
jmp addysp
|
||||
|
||||
error: dex ;(ldx #>-1)
|
||||
bne ret
|
||||
.endproc
|
||||
46
platform/c128/lib/pfs_seek.S
Normal file
46
platform/c128/lib/pfs_seek.S
Normal file
|
|
@ -0,0 +1,46 @@
|
|||
;
|
||||
; Copyright (c) 2016, Greg King
|
||||
; All rights reserved.
|
||||
;
|
||||
; Redistribution and use in source and binary forms, with or without
|
||||
; modification, are permitted provided that the following conditions
|
||||
; are met:
|
||||
; 1. Redistributions of source code must retain the above copyright
|
||||
; notice, this list of conditions, and the following disclaimer.
|
||||
; 2. Redistributions in binary form must reproduce the above copyright
|
||||
; notice, this list of conditions, and the following disclaimer in the
|
||||
; documentation and/or other materials provided with the distribution.
|
||||
; 3. Neither the name of the author nor the names of contributors
|
||||
; may be used to endorse or promote products derived from this software
|
||||
; without specific prior written permission.
|
||||
;
|
||||
; THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"; AND,
|
||||
; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
; OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
; LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
; OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
; SUCH DAMAGE.
|
||||
;
|
||||
; This file is part of the Contiki operating system.
|
||||
;
|
||||
; Author: Greg King <gregdk@users.sf.net>
|
||||
;
|
||||
;---------------------------------------------------------------------
|
||||
.importzp sp, sreg, ptr1, ptr2, ptr3
|
||||
.import popax, incsp6
|
||||
.import cmdc, flags
|
||||
|
||||
.export _pfs_seek
|
||||
;---------------------------------------------------------------------
|
||||
.proc _pfs_seek
|
||||
lda #<-1 ; seek not implemented
|
||||
tax
|
||||
stx sreg ; return long data type
|
||||
stx sreg+1
|
||||
jmp incsp6 ; drop int and long arguments from stack
|
||||
.endproc
|
||||
|
|
@ -31,27 +31,33 @@
|
|||
; Author: Kajtar Zsolt <soci@c64.rulez.org>
|
||||
;
|
||||
;---------------------------------------------------------------------
|
||||
.define F_IDE64 0 ; support IDE64, 100 byte only
|
||||
.define F_IDE64 0 ; c128 doesn't have IDE64
|
||||
|
||||
.importzp ptr1, ptr2
|
||||
.import pfs_rwcommon, pfs_rwsetflags, pfs_rwcommonend
|
||||
.if F_IDE64
|
||||
.import ide64_rwprepare, ide64_rwfinish
|
||||
.endif
|
||||
.export _pfs_write
|
||||
.importzp ptr1, ptr2
|
||||
.import pfs_rwcommon, pfs_rwsetflags, pfs_rwcommonend
|
||||
.if F_IDE64
|
||||
.import ide64_rwprepare, ide64_rwfinish
|
||||
.endif
|
||||
|
||||
.export _pfs_write
|
||||
;---------------------------------------------------------------------
|
||||
F_NBLK = $40
|
||||
ST = $90 ;status
|
||||
CHKOUT = $FFC9
|
||||
CLRCHN = $FFCC
|
||||
CHROUT = $FFD2
|
||||
WRITE = $DEF1
|
||||
F_NBLK = %01000000 ;block read/write not available
|
||||
|
||||
ST := $90 ;status
|
||||
|
||||
; IDEDOS function
|
||||
WRITE := $DEF1
|
||||
|
||||
; Kernal functions
|
||||
CHKOUT := $FFC9
|
||||
CLRCHN := $FFCC
|
||||
CHROUT := $FFD2
|
||||
;---------------------------------------------------------------------
|
||||
.code
|
||||
|
||||
error5: jsr CLRCHN ; clrchn
|
||||
error5: jsr CLRCHN
|
||||
|
||||
error2: ldx #255
|
||||
error2: ldx #>-1
|
||||
txa
|
||||
rts
|
||||
|
||||
|
|
@ -59,8 +65,8 @@ error2: ldx #255
|
|||
jsr pfs_rwcommon ; pop params, check handle
|
||||
beq error2 ; not open
|
||||
|
||||
.if F_IDE64
|
||||
asl
|
||||
.if F_IDE64
|
||||
asl a
|
||||
bmi nblk ; no block operation
|
||||
|
||||
jsr CHKOUT
|
||||
|
|
@ -70,7 +76,7 @@ error2: ldx #255
|
|||
jsr ide64_rwprepare
|
||||
bcs norm
|
||||
|
||||
; write
|
||||
; do a block write
|
||||
jsr WRITE
|
||||
bcs nosup
|
||||
jmp ide64_rwfinish
|
||||
|
|
@ -98,10 +104,9 @@ norm: ldy #0
|
|||
lda ST
|
||||
beq @L3
|
||||
bne error5 ; bail out on errors
|
||||
@L2:
|
||||
|
||||
; Wrote all chars, close the output channel
|
||||
jsr CLRCHN
|
||||
; Wrote all chars.; cancel the output channel
|
||||
@L2: jsr CLRCHN
|
||||
|
||||
; Return the number of chars written
|
||||
jmp pfs_rwcommonend
|
||||
|
|
|
|||
|
|
@ -31,7 +31,7 @@
|
|||
# Author: Oliver Schmidt <ol.sc@web.de>
|
||||
#
|
||||
|
||||
CONTIKI_TARGET_SOURCEFILES += lseek.c pfs.S pfs_write.S
|
||||
CONTIKI_TARGET_SOURCEFILES += lseek.c pfs.S pfs_remove.S pfs_seek.S pfs_write.S
|
||||
|
||||
CONTIKI_CPU = $(CONTIKI)/cpu/6502
|
||||
include $(CONTIKI_CPU)/Makefile.6502
|
||||
|
|
|
|||
|
|
@ -29,99 +29,212 @@
|
|||
; This file is part of the Contiki operating system.
|
||||
;
|
||||
; Author: Kajtar Zsolt <soci@c64.rulez.org>
|
||||
; Author: Greg King <gregdk@users.sf.net>
|
||||
;
|
||||
;---------------------------------------------------------------------
|
||||
.define F_IDE64 1 ; support IDE64, 100 byte only
|
||||
.define F_IDE64 1 ; support IDE64, >= $0100 bytes only
|
||||
|
||||
.constructor init_pfs
|
||||
.destructor done_pfs
|
||||
.importzp ptr1, ptr2, ptr3, sp
|
||||
.import curunit, __filetype, popax, addysp, subysp
|
||||
.export pfs_rwcommon, pfs_rwsetflags, pfs_rwcommonend
|
||||
.if F_IDE64
|
||||
.export ide64_rwprepare, ide64_rwfinish
|
||||
.endif
|
||||
.export _pfs_open, _pfs_read, _pfs_close
|
||||
.constructor init_pfs
|
||||
.destructor done_pfs
|
||||
.importzp sp, ptr1, ptr2, ptr3
|
||||
.import curunit, __filetype, popax, addysp, subysp
|
||||
.export pfs_rwcommon, pfs_rwsetflags, pfs_rwcommonend
|
||||
.if F_IDE64
|
||||
.export ide64_rwprepare, ide64_rwfinish
|
||||
.endif
|
||||
.export cmdc, flags
|
||||
.export pfs_makename, pfs_scratch
|
||||
|
||||
.export _pfs_open, _pfs_read, _pfs_close
|
||||
;---------------------------------------------------------------------
|
||||
F_EOF = $80
|
||||
F_NBLK = $40
|
||||
F_OPEN = $20
|
||||
F_MAXLEN = 80 ;max filename length
|
||||
ST = $90 ;status
|
||||
FN = $BB ;filename
|
||||
FNL = $B7 ;filenamelength
|
||||
LF = $B8 ;logical file number
|
||||
SA = $B9 ;secondary address
|
||||
OPEN = $FFC0
|
||||
CLOSE = $FFC3
|
||||
CHKIN = $FFC6
|
||||
CHKOUT = $FFC9
|
||||
CLRCHN = $FFCC
|
||||
CHRIN = $FFCF
|
||||
CHROUT = $FFD2
|
||||
SETLFS = $FFBA
|
||||
SETNAM = $FFBD
|
||||
CLALL = $FFE7
|
||||
WRITE = $DEF1
|
||||
READ = $DEF4
|
||||
MAXLEN = 80 ;maximum filename length
|
||||
|
||||
; Flag bits
|
||||
F_EOF = %10000000 ;end of file
|
||||
F_NBLK = %01000000 ;block read/write not available
|
||||
F_OPEN = %00100000
|
||||
|
||||
; Kernal variables
|
||||
ST := $90 ;status
|
||||
FN := $BB ;filename
|
||||
FNL := $B7 ;filename length
|
||||
LF := $B8 ;logical file number
|
||||
|
||||
OPNVec := $031A ;address vector to OPEN function's code
|
||||
|
||||
; IDEDOS function
|
||||
READ := $DEF4
|
||||
|
||||
; Kernal functions
|
||||
SETLFS := $FFBA
|
||||
SETNAM := $FFBD
|
||||
OPEN := $FFC0
|
||||
CLOSE := $FFC3
|
||||
CHKIN := $FFC6
|
||||
CHKOUT := $FFC9
|
||||
CLRCHN := $FFCC
|
||||
CHRIN := $FFCF
|
||||
CHROUT := $FFD2
|
||||
;---------------------------------------------------------------------
|
||||
.data
|
||||
|
||||
illchr: .byte $3A, $2A, $3F, $3D ;illegal chars
|
||||
pw: .byte $2C, $50, $2C, $57 ;,p,w
|
||||
; illchr and sw must stay together because the comma, also, is illegal in names.
|
||||
illchr: .byte "*?:=" ;illegal chars
|
||||
sw: .byte ",s,w"
|
||||
cmdc: .byte 0
|
||||
flags: .res 10
|
||||
flags: .res 10 ;(Kernal allows only ten open files)
|
||||
;---------------------------------------------------------------------
|
||||
.segment "ONCE"
|
||||
|
||||
init_pfs:
|
||||
ldy #F_MAXLEN+8
|
||||
jsr subysp ;allocate
|
||||
lda #0
|
||||
sta FNL ;no name
|
||||
ldy #15-1
|
||||
jsr open2 ;open command channel
|
||||
ldy #MAXLEN + 8
|
||||
jsr subysp ;allocate because open2 will free it
|
||||
lda #0 ;no name, file number 1
|
||||
sta FNL
|
||||
ldy #15 - 1 ;secondary address 15
|
||||
jsr open2 ;open command channel
|
||||
sta cmdc
|
||||
rts
|
||||
;---------------------------------------------------------------------
|
||||
.code
|
||||
|
||||
error3: jmp error
|
||||
|
||||
_pfs_open:
|
||||
sta ptr2
|
||||
; Pop and store name
|
||||
sta ptr2 ;save open-mode flags
|
||||
|
||||
; Get and store name
|
||||
jsr popax
|
||||
jsr pfs_makename
|
||||
lda FNL
|
||||
beq error ;must have a filename
|
||||
|
||||
lda #2 - 1 ;file number
|
||||
tay ;secondary address
|
||||
open2: sta ptr2
|
||||
sty ptr2 + 1
|
||||
|
||||
next: inc ptr2 ;next file number
|
||||
ldx ptr2 ;file number
|
||||
cpx #.sizeof(flags) + 1
|
||||
bcs error ;no more files
|
||||
lda flags - 1,x
|
||||
bne next ;already used
|
||||
lda ptr2 + 1
|
||||
bne nextsa
|
||||
inx
|
||||
stx ptr2 + 1
|
||||
nextsa: inc ptr2 + 1 ;next channel
|
||||
retr: lda ptr2 ;file number
|
||||
ldx curunit
|
||||
ldy ptr2 + 1 ;secondary address (channel number)
|
||||
jsr SETLFS
|
||||
jsr OPEN ;open a pair of files (in computer and drive)
|
||||
bcs oerr ;branch if could not open computer file
|
||||
ldx cmdc
|
||||
beq opok ;branch if error channel just was openned
|
||||
jsr CHKIN
|
||||
bcs error
|
||||
jsr CHRIN
|
||||
pha ;first digit of error code
|
||||
jsr CHRIN
|
||||
sta ptr1 ;second digit
|
||||
@L4: jsr CHRIN ;flush status message
|
||||
lda ST
|
||||
beq @L4
|
||||
jsr CLRCHN
|
||||
pla
|
||||
cmp #'2'
|
||||
bcc opok ;no serious error
|
||||
pha
|
||||
lda ptr2
|
||||
jsr CLOSE ;close computer file
|
||||
pla
|
||||
ldx ptr1
|
||||
cmp #'7' ;no channel?
|
||||
bne nnoc
|
||||
cpx #'0'
|
||||
bne error ;not "no channel"
|
||||
lda ptr2 + 1
|
||||
cmp #14
|
||||
bcc nextsa ;try next channel
|
||||
bcs error ;give up
|
||||
|
||||
opok: ldx ptr2
|
||||
lda #F_OPEN
|
||||
sta flags - 1,x
|
||||
txa ;OK, return file number
|
||||
ret0: ldx #>$0000
|
||||
ret: ldy #MAXLEN + 8 ;free filename space
|
||||
jmp addysp
|
||||
|
||||
oerr: dec ptr2 + 1
|
||||
cmp #2 ;already open,
|
||||
beq next ;retry with next
|
||||
|
||||
error: lda #<-1
|
||||
tax ;failed
|
||||
bne ret
|
||||
|
||||
nnoc: inc ptr3
|
||||
bne error ;no retry
|
||||
cmp #'6'
|
||||
bne error ;not "file exists"
|
||||
cpx #'3'
|
||||
bne error
|
||||
jsr pfs_scratch
|
||||
bcc retr
|
||||
bcs error ;branch always
|
||||
|
||||
pfs_scratch:
|
||||
ldx cmdc
|
||||
jsr CHKOUT
|
||||
bcs @L5
|
||||
ldy #1
|
||||
lda #'s' ;scratch
|
||||
@L4: jsr CHROUT
|
||||
lda (FN),y
|
||||
iny
|
||||
cmp #','
|
||||
bne @L4
|
||||
lda #$0D ;carriage return
|
||||
jsr CHROUT
|
||||
jsr CLRCHN
|
||||
clc ;carry = 0: OK
|
||||
@L5: rts ;carry = 1: error
|
||||
|
||||
pfs_makename:
|
||||
sta FN
|
||||
stx FN+1 ;filename (kernal)
|
||||
ldy #F_MAXLEN+8
|
||||
jsr subysp ;allocate name
|
||||
ldy #255
|
||||
stx FN+1 ;Kernal filename pointer
|
||||
ldy #MAXLEN + 8
|
||||
jsr subysp ;allocate name space
|
||||
|
||||
; Validate the name; and, find its length
|
||||
ldy #<-1
|
||||
sty ptr3
|
||||
sty ptr1
|
||||
@L10: iny
|
||||
cpy #F_MAXLEN
|
||||
bcs error3 ;too long...
|
||||
ldx #4 ;4+1 (comma)
|
||||
cpy #MAXLEN
|
||||
bcs badchr ;too long
|
||||
lda (FN),y
|
||||
ldx #.sizeof(illchr); 4 + 1 (includes comma)
|
||||
@L12: cmp illchr,x
|
||||
beq error3 ;illegal char?
|
||||
beq badchr ;illegal char
|
||||
dex
|
||||
bpl @L12
|
||||
cmp #$2F
|
||||
cmp #'/'
|
||||
bne @L11
|
||||
sty ptr1 ;last slash
|
||||
@L11: lda (FN),y
|
||||
sty ptr1 ;last slash
|
||||
@L11: tax ;test for '\0'
|
||||
bne @L10
|
||||
sty FNL
|
||||
cpy #0
|
||||
beq badchr ;no name
|
||||
|
||||
tay
|
||||
tax
|
||||
lda #$30 ;this partition
|
||||
tay ;zero index reg.
|
||||
lda #'0' ;drive 0 or current partition
|
||||
sta (sp),y
|
||||
iny
|
||||
inc ptr1
|
||||
beq nopath
|
||||
lda #$2F
|
||||
lda #'/'
|
||||
@L13: sta (sp),y
|
||||
iny
|
||||
lda (FN,x)
|
||||
|
|
@ -130,158 +243,67 @@ _pfs_open:
|
|||
inc FN+1
|
||||
@L14: cpy ptr1
|
||||
bcc @L13
|
||||
lda #$2F
|
||||
;lda #'/' ; (.A already has a slash)
|
||||
sta (sp),y
|
||||
iny
|
||||
nopath: lda #$3A
|
||||
nopath: lda #':'
|
||||
@L16: sta (sp),y
|
||||
iny
|
||||
lda (FN,x)
|
||||
inc FN
|
||||
bne @L15
|
||||
inc FN+1
|
||||
@L15: ora #0
|
||||
@L15: ora #$00 ;test for '\0'
|
||||
bne @L16
|
||||
lsr ptr2
|
||||
bcs ro ;read only
|
||||
bcs ro ;read-only (read-write not supported)
|
||||
lda __filetype
|
||||
sta pw+1 ;set filetype
|
||||
ldx #252
|
||||
@L20: lda pw-252,x
|
||||
sta (sp),y ;write
|
||||
sta sw + 1 ;set filetype
|
||||
lsr ptr2
|
||||
lda #'w' ;write-only
|
||||
lsr ptr2
|
||||
bcc write
|
||||
lda #'a' ;append
|
||||
write: sta sw + 3 ;set mode
|
||||
ldx #$0100 - .sizeof(sw)
|
||||
@L20: lda sw - ($0100 - .sizeof(sw)),x
|
||||
sta (sp),y
|
||||
iny
|
||||
inx
|
||||
bne @L20
|
||||
ro: tya ;name length (kernal)
|
||||
ro: tya ;pathname length
|
||||
ldx sp
|
||||
ldy sp+1
|
||||
jsr SETNAM
|
||||
namset: jmp SETNAM
|
||||
|
||||
lda #0 ;file number
|
||||
tay ;secondary address
|
||||
open2: sta ptr2
|
||||
sty ptr2+1
|
||||
|
||||
next: inc ptr2 ;next file number
|
||||
ldx ptr2 ;file number
|
||||
cpx #11
|
||||
bcs error ;no more files
|
||||
lda flags-1,x
|
||||
bne next ;already used
|
||||
lda ptr2+1
|
||||
bne nextsa
|
||||
inx
|
||||
stx ptr2+1
|
||||
nextsa: inc ptr2+1 ;next channel
|
||||
retr: lda ptr2 ;file number
|
||||
ldx curunit
|
||||
ldy ptr2+1 ;secondary address
|
||||
jsr SETLFS
|
||||
jsr OPEN ;open
|
||||
bcs oerr
|
||||
ldx cmdc
|
||||
beq opok ;error channel open
|
||||
jsr CHKIN
|
||||
bcs error
|
||||
jsr CHRIN
|
||||
pha
|
||||
jsr CHRIN
|
||||
sta ptr1
|
||||
@L4: jsr CHRIN
|
||||
lda ST
|
||||
beq @L4
|
||||
jsr CLRCHN
|
||||
pla
|
||||
tax
|
||||
lsr
|
||||
cmp #$18 ;no serious error
|
||||
beq opok
|
||||
txa
|
||||
pha
|
||||
lda ptr2
|
||||
jsr CLOSE ;close
|
||||
pla
|
||||
ldx ptr1
|
||||
cmp #$37 ;no channel?
|
||||
bne nnoc
|
||||
cpx #$30
|
||||
bne error ;not no channel
|
||||
lda ptr2+1
|
||||
cmp #14
|
||||
bcc nextsa ;try next channel
|
||||
bcs error ;give up
|
||||
|
||||
opok: ldx ptr2
|
||||
lda #F_OPEN
|
||||
sta flags-1,x
|
||||
txa ;ok, return file number
|
||||
ldx #0
|
||||
ret: ldy #F_MAXLEN+8 ; free filename
|
||||
jmp addysp
|
||||
|
||||
oerr: dec ptr2+1
|
||||
cmp #2 ;already open,
|
||||
beq next ;retry with next
|
||||
|
||||
error: lda #$FF
|
||||
tax ;failed
|
||||
bne ret
|
||||
|
||||
nnoc: inc ptr3
|
||||
bne error ;no retry
|
||||
cmp #$36
|
||||
bne error ;no exists
|
||||
cpx #$33
|
||||
bne error
|
||||
ldx cmdc
|
||||
jsr CHKOUT
|
||||
bcs error
|
||||
lda FNL
|
||||
sec
|
||||
sbc #5
|
||||
tax
|
||||
lda #$53 ;scratch
|
||||
jsr CHROUT
|
||||
ldy #1
|
||||
@L4: lda (FN),y
|
||||
iny
|
||||
jsr CHROUT
|
||||
dex
|
||||
bne @L4
|
||||
lda #$3D
|
||||
jsr CHROUT
|
||||
iny
|
||||
lda (FN),y
|
||||
jsr CHROUT
|
||||
lda #$0d
|
||||
jsr CHROUT
|
||||
jsr CLRCHN
|
||||
jmp retr
|
||||
badchr: lda #0
|
||||
beq namset
|
||||
|
||||
.proc _pfs_read
|
||||
jsr pfs_rwcommon ; pop params, check handle
|
||||
beq error2 ; not open
|
||||
|
||||
bmi eof
|
||||
.if F_IDE64
|
||||
asl
|
||||
|
||||
.if F_IDE64
|
||||
asl a
|
||||
bmi nblk ; no block operation
|
||||
|
||||
jsr CHKIN
|
||||
bcs error2
|
||||
|
||||
|
||||
; check support
|
||||
jsr ide64_rwprepare
|
||||
bcs norm
|
||||
|
||||
; read
|
||||
|
||||
; do a block read
|
||||
jsr READ
|
||||
bcs nosup
|
||||
jmp ide64_rwfinish
|
||||
|
||||
nosup: lda #F_NBLK
|
||||
jsr pfs_rwsetflags
|
||||
.endif
|
||||
.endif
|
||||
|
||||
; Valid lfn. Make it the input file
|
||||
nblk: jsr CHKIN
|
||||
|
|
@ -292,15 +314,15 @@ norm: ldy #0
|
|||
@L3: inc ptr1
|
||||
bne @L0
|
||||
inc ptr1+1
|
||||
beq done ; branch always
|
||||
beq done
|
||||
|
||||
; Read the next byte
|
||||
@L0: jsr CHRIN
|
||||
tax ; save the input byte
|
||||
|
||||
lda ST ; read the IEEE status
|
||||
cmp #1 ; save it
|
||||
and #%10111111 ; check anything but the EOI bit
|
||||
lda ST ; read the file status
|
||||
cmp #$01 ; save it
|
||||
and #%10111111 ; check anything but the EOF bit
|
||||
bne error5 ; assume device not present
|
||||
|
||||
; Store the byte just read
|
||||
|
|
@ -310,45 +332,60 @@ norm: ldy #0
|
|||
bne @L1
|
||||
inc ptr2+1 ; *buf++ = A;
|
||||
|
||||
; Get the status again and check the EOI bit
|
||||
@L1: bcc @L3 ; loop if no end of file
|
||||
; Get the status again; and, check the EOF bit
|
||||
@L1: bcc @L3 ; loop if not end of file
|
||||
|
||||
; Set the EOI flag and bail out
|
||||
; Set the EOF flag; and, bail out
|
||||
lda #F_EOF
|
||||
jsr pfs_rwsetflags
|
||||
|
||||
; Read done, close the input channel
|
||||
done: jsr CLRCHN ; clrchn
|
||||
; Read done; cancel the input channel
|
||||
done: jsr CLRCHN
|
||||
|
||||
; Return the number of chars read
|
||||
eof: jmp pfs_rwcommonend
|
||||
eof:
|
||||
; jmp pfs_rwcommonend ; (fall through)
|
||||
.endproc
|
||||
|
||||
.proc pfs_rwcommonend
|
||||
lda ptr2
|
||||
sec
|
||||
sbc ptr3
|
||||
pha
|
||||
lda ptr2+1
|
||||
sbc ptr3+1
|
||||
tax
|
||||
pla
|
||||
rts
|
||||
.endproc
|
||||
|
||||
; Error entry, file is not open
|
||||
done_pfs:
|
||||
ldx #10
|
||||
@L2: ldy flags-1,x ; file open?
|
||||
ldx #.sizeof(flags)
|
||||
@L2: ldy flags - 1,x ; file open?
|
||||
beq @L1
|
||||
txa
|
||||
jsr _pfs_close
|
||||
jsr close1
|
||||
@L1: dex
|
||||
bne @L2
|
||||
bne @L2
|
||||
rts
|
||||
|
||||
error5: jsr CLRCHN ; clrchn
|
||||
error5: jsr CLRCHN
|
||||
|
||||
error2: ldx #255
|
||||
; Error entry, file is not open
|
||||
error2: ldx #>-1
|
||||
txa
|
||||
rts
|
||||
|
||||
_pfs_close:
|
||||
pha
|
||||
jsr CLOSE ;close
|
||||
cmp #.sizeof(flags) + 1
|
||||
bcs close0 ; don't close if not valid file number
|
||||
close1: pha
|
||||
jsr CLOSE
|
||||
pla
|
||||
tax
|
||||
lda #0
|
||||
sta flags-1,x
|
||||
rts
|
||||
lda #$00
|
||||
sta flags - 1,x
|
||||
close0: rts ; .X = file number
|
||||
|
||||
.proc pfs_rwcommon
|
||||
eor #$FF
|
||||
|
|
@ -366,70 +403,56 @@ _pfs_close:
|
|||
|
||||
jsr popax ; get the handle
|
||||
sta LF
|
||||
lda #0
|
||||
beq pfs_rwsetflags
|
||||
lda #$00
|
||||
; beq pfs_rwsetflags ; (fall through)
|
||||
.endproc
|
||||
|
||||
.if F_IDE64
|
||||
.proc ide64_rwprepare
|
||||
sec
|
||||
lda ptr1+1
|
||||
eor #255
|
||||
beq small ; too small, not worth it
|
||||
tay
|
||||
lda ptr1 ; setup registers
|
||||
eor #255
|
||||
tax
|
||||
lda $031B
|
||||
eor #$DE
|
||||
bne noide ; open vector set?
|
||||
lda $DE60
|
||||
eor #$49
|
||||
bne noide ; check identification
|
||||
lda $DE61
|
||||
eor #$44
|
||||
bne noide
|
||||
lda $DE62
|
||||
eor #$45
|
||||
bne noide
|
||||
clc
|
||||
lda #ptr2
|
||||
small: rts
|
||||
|
||||
noide: lda #F_NBLK
|
||||
bne pfs_rwsetflags
|
||||
.endproc
|
||||
.endif
|
||||
|
||||
.proc pfs_rwsetflags
|
||||
ldx LF
|
||||
ora flags-1,x
|
||||
sta flags-1,x
|
||||
ora flags - 1,x
|
||||
sta flags - 1,x
|
||||
rts
|
||||
.endproc
|
||||
|
||||
.if F_IDE64
|
||||
.if F_IDE64
|
||||
.proc ide64_rwprepare
|
||||
sec ; assume it won't use IDEDOS
|
||||
lda ptr1+1
|
||||
eor #$FF ; convert -count-1 back to count
|
||||
beq small ; too small, not worth it
|
||||
tay
|
||||
lda ptr1 ; set up registers
|
||||
eor #$FF
|
||||
tax
|
||||
lda OPNVec+1
|
||||
eor #>$DE00
|
||||
bne noide ; is OPEN vector set to IDEDOS?
|
||||
lda $DE60
|
||||
eor #'i'
|
||||
bne noide ; check identification
|
||||
lda $DE61
|
||||
eor #'d'
|
||||
bne noide
|
||||
lda $DE62
|
||||
eor #'e'
|
||||
bne noide
|
||||
clc ; it will use IDEDOS
|
||||
lda #ptr2
|
||||
small: rts
|
||||
|
||||
noide: lda #F_NBLK
|
||||
bne pfs_rwsetflags
|
||||
.endproc
|
||||
|
||||
.proc ide64_rwfinish
|
||||
txa
|
||||
txa ; push .YX
|
||||
pha
|
||||
tya
|
||||
pha
|
||||
jsr CLRCHN
|
||||
pla
|
||||
tax
|
||||
pla
|
||||
rts
|
||||
.endproc
|
||||
.endif
|
||||
|
||||
.proc pfs_rwcommonend
|
||||
lda ptr2
|
||||
sec
|
||||
sbc ptr3
|
||||
pha
|
||||
lda ptr2+1
|
||||
sbc ptr3+1
|
||||
pla ; pull .XA
|
||||
tax
|
||||
pla
|
||||
rts
|
||||
.endproc
|
||||
.endif
|
||||
|
|
|
|||
59
platform/c64/lib/pfs_remove.S
Normal file
59
platform/c64/lib/pfs_remove.S
Normal file
|
|
@ -0,0 +1,59 @@
|
|||
;
|
||||
; Copyright (c) 2016, Greg King
|
||||
; All rights reserved.
|
||||
;
|
||||
; Redistribution and use in source and binary forms, with or without
|
||||
; modification, are permitted provided that the following conditions
|
||||
; are met:
|
||||
; 1. Redistributions of source code must retain the above copyright
|
||||
; notice, this list of conditions, and the following disclaimer.
|
||||
; 2. Redistributions in binary form must reproduce the above copyright
|
||||
; notice, this list of conditions, and the following disclaimer in the
|
||||
; documentation and/or other materials provided with the distribution.
|
||||
; 3. Neither the name of the author nor the names of contributors
|
||||
; may be used to endorse or promote products derived from this software
|
||||
; without specific prior written permission.
|
||||
;
|
||||
; THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"; AND,
|
||||
; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
; OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
; LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
; OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
; SUCH DAMAGE.
|
||||
;
|
||||
; This file is part of the Contiki operating system.
|
||||
;
|
||||
; Author: Greg King <gregdk@users.sf.net>
|
||||
;
|
||||
;---------------------------------------------------------------------
|
||||
.importzp ptr2
|
||||
.import addysp
|
||||
.import pfs_makename, pfs_scratch
|
||||
|
||||
.export _pfs_remove
|
||||
;---------------------------------------------------------------------
|
||||
MAXLEN = 80 ; max. filename length
|
||||
|
||||
FNL := $B7 ; filename length
|
||||
;---------------------------------------------------------------------
|
||||
.proc _pfs_remove
|
||||
asl ptr2 ; force pfs_makename to format for pfs_scratch
|
||||
jsr pfs_makename
|
||||
ldx FNL
|
||||
beq error ; no name
|
||||
|
||||
jsr pfs_scratch
|
||||
ldx #>$0000
|
||||
bcs error
|
||||
ret: txa
|
||||
ldy #MAXLEN + 8 ; free filename space
|
||||
jmp addysp
|
||||
|
||||
error: dex ;(ldx #>-1)
|
||||
bne ret
|
||||
.endproc
|
||||
46
platform/c64/lib/pfs_seek.S
Normal file
46
platform/c64/lib/pfs_seek.S
Normal file
|
|
@ -0,0 +1,46 @@
|
|||
;
|
||||
; Copyright (c) 2016, Greg King
|
||||
; All rights reserved.
|
||||
;
|
||||
; Redistribution and use in source and binary forms, with or without
|
||||
; modification, are permitted provided that the following conditions
|
||||
; are met:
|
||||
; 1. Redistributions of source code must retain the above copyright
|
||||
; notice, this list of conditions, and the following disclaimer.
|
||||
; 2. Redistributions in binary form must reproduce the above copyright
|
||||
; notice, this list of conditions, and the following disclaimer in the
|
||||
; documentation and/or other materials provided with the distribution.
|
||||
; 3. Neither the name of the author nor the names of contributors
|
||||
; may be used to endorse or promote products derived from this software
|
||||
; without specific prior written permission.
|
||||
;
|
||||
; THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"; AND,
|
||||
; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||||
; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
; OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
; LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
; OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
; SUCH DAMAGE.
|
||||
;
|
||||
; This file is part of the Contiki operating system.
|
||||
;
|
||||
; Author: Greg King <gregdk@users.sf.net>
|
||||
;
|
||||
;---------------------------------------------------------------------
|
||||
.importzp sp, sreg, ptr1, ptr2, ptr3
|
||||
.import popax, incsp6
|
||||
.import cmdc, flags
|
||||
|
||||
.export _pfs_seek
|
||||
;---------------------------------------------------------------------
|
||||
.proc _pfs_seek
|
||||
lda #<-1 ; seek not implemented
|
||||
tax
|
||||
stx sreg ; return long data type
|
||||
stx sreg+1
|
||||
jmp incsp6 ; drop int and long arguments from stack
|
||||
.endproc
|
||||
|
|
@ -31,27 +31,33 @@
|
|||
; Author: Kajtar Zsolt <soci@c64.rulez.org>
|
||||
;
|
||||
;---------------------------------------------------------------------
|
||||
.define F_IDE64 1 ; support IDE64, 100 byte only
|
||||
.define F_IDE64 1 ; support IDE64, >= $0100 bytes only
|
||||
|
||||
.importzp ptr1, ptr2
|
||||
.import pfs_rwcommon, pfs_rwsetflags, pfs_rwcommonend
|
||||
.if F_IDE64
|
||||
.import ide64_rwprepare, ide64_rwfinish
|
||||
.endif
|
||||
.export _pfs_write
|
||||
.importzp ptr1, ptr2
|
||||
.import pfs_rwcommon, pfs_rwsetflags, pfs_rwcommonend
|
||||
.if F_IDE64
|
||||
.import ide64_rwprepare, ide64_rwfinish
|
||||
.endif
|
||||
|
||||
.export _pfs_write
|
||||
;---------------------------------------------------------------------
|
||||
F_NBLK = $40
|
||||
ST = $90 ;status
|
||||
CHKOUT = $FFC9
|
||||
CLRCHN = $FFCC
|
||||
CHROUT = $FFD2
|
||||
WRITE = $DEF1
|
||||
F_NBLK = %01000000 ;block read/write not available
|
||||
|
||||
ST := $90 ;status
|
||||
|
||||
; IDEDOS function
|
||||
WRITE := $DEF1
|
||||
|
||||
; Kernal functions
|
||||
CHKOUT := $FFC9
|
||||
CLRCHN := $FFCC
|
||||
CHROUT := $FFD2
|
||||
;---------------------------------------------------------------------
|
||||
.code
|
||||
|
||||
error5: jsr CLRCHN ; clrchn
|
||||
error5: jsr CLRCHN
|
||||
|
||||
error2: ldx #255
|
||||
error2: ldx #>-1
|
||||
txa
|
||||
rts
|
||||
|
||||
|
|
@ -59,8 +65,8 @@ error2: ldx #255
|
|||
jsr pfs_rwcommon ; pop params, check handle
|
||||
beq error2 ; not open
|
||||
|
||||
.if F_IDE64
|
||||
asl
|
||||
.if F_IDE64
|
||||
asl a
|
||||
bmi nblk ; no block operation
|
||||
|
||||
jsr CHKOUT
|
||||
|
|
@ -70,7 +76,7 @@ error2: ldx #255
|
|||
jsr ide64_rwprepare
|
||||
bcs norm
|
||||
|
||||
; write
|
||||
; do a block write
|
||||
jsr WRITE
|
||||
bcs nosup
|
||||
jmp ide64_rwfinish
|
||||
|
|
@ -98,10 +104,9 @@ norm: ldy #0
|
|||
lda ST
|
||||
beq @L3
|
||||
bne error5 ; bail out on errors
|
||||
@L2:
|
||||
|
||||
; Wrote all chars, close the output channel
|
||||
jsr CLRCHN
|
||||
; Wrote all chars.; cancel the output channel
|
||||
@L2: jsr CLRCHN
|
||||
|
||||
; Return the number of chars written
|
||||
jmp pfs_rwcommonend
|
||||
|
|
|
|||
Loading…
Reference in a new issue