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more space improvements by Daniel Serpell
git-svn-id: svn://svn.cc65.org/cc65/trunk@4503 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cpg
parent
a467095216
commit
2bca737f57
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@ -79,6 +79,7 @@ OBJS = _scrsize.o \
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do_oserr.o \
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dosdetect.o \
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fdtable.o \
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fdtab.o \
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fdtoiocb.o \
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getargs.o \
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getdefdev.o \
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30
libsrc/atari/fdtab.s
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30
libsrc/atari/fdtab.s
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@ -0,0 +1,30 @@
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;
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; Christian Groessler, Oct-2000
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; Daniel Serpell, Dec-2009
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;
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; the fdtable itself is defined here
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;
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.include "fd.inc"
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.export fd_table,fd_index
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.export ___fd_table,___fd_index ; for test(debug purposes only
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.data
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___fd_index:
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fd_index: ; fd number is index into this table, entry's value specifies the fd_table entry
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.byte 0,0,0 ; at start, three first files are stdin/stdout/stderr.
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.res MAX_FD_INDEX-3,$ff
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___fd_table:
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fd_table: ; each entry represents an open iocb
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.byte 3,0,'E',0 ; system console, app starts with opened iocb #0 for E:
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.byte 0,$ff,0,0
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.byte 0,$ff,0,0
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.byte 0,$ff,0,0
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.byte 0,$ff,0,0
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.byte 0,$ff,0,0
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.byte 0,$ff,0,0
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.byte 0,$ff,0,0
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@ -26,10 +26,6 @@
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__getdefdev:
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.ifdef DEFAULT_DEVICE
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lda #'0'+DEFAULT_DEVICE
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sta __defdev+1
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.endif
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lda __dos_type ; which DOS?
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cmp #ATARIDOS
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beq finish
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@ -86,5 +82,9 @@ finish: lda #<__defdev
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; Default device
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__defdev:
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.ifdef DEFAULT_DEVICE
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.byte 'D', '0'+DEFAULT_DEVICE, ':', 0
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.else
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.byte "D1:", 0
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.endif
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@ -2,56 +2,18 @@
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; Christian Groessler, Oct-2000
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;
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; allocates a new fd in the indirection table
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; the fdtable itself is defined here
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;
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.include "atari.inc"
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.include "fd.inc"
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.include "_file.inc"
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.importzp tmp1
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.import fd_table, fd_index
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.export fdt_to_fdi,getfd
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.export fd_table,fd_index
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.export ___fd_table,___fd_index ; for test(debug purposes only
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.constructor initfds,24
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.data
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___fd_index:
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fd_index: ; fd number is index into this table, entry's value specifies the fd_table entry
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.res MAX_FD_INDEX,$ff
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___fd_table:
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fd_table: ; each entry represents an open iocb
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.byte 0,0,'E',0 ; system console, app starts with opened iocb #0 for E:
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.byte 0,$ff,0,0
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.byte 0,$ff,0,0
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.byte 0,$ff,0,0
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.byte 0,$ff,0,0
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.byte 0,$ff,0,0
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.byte 0,$ff,0,0
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.byte 0,$ff,0,0
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.code
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; set stdio stream handles
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.proc initfds
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lda #0
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jsr getfd
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sta __filetab + (0 * .sizeof(_FILE)); setup stdin
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lda #0
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jsr getfd
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sta __filetab + (1 * .sizeof(_FILE)); setup stdout
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lda #0
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jsr getfd
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sta __filetab + (2 * .sizeof(_FILE)); setup stderr
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rts
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.endproc
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; fdt_to_fdi
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; returns a fd_index entry pointing to the given ft_table entry
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; get fd_table entry in A
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@ -23,7 +23,7 @@
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.import __defdev
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.endif
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.importzp tmp3,ptr4,sp
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.import _strupr,subysp
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.import subysp,addysp
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.export ucase_fn
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.proc ucase_fn
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@ -50,56 +50,48 @@
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hasdev:
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.endif
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; now we need the length of the name
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ldy #0
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loop: lda (ptr4),y
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beq str_end
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; cmp #ATEOL ; we also accept Atari EOF char as end of string (not!)
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; beq str_end
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iny
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bne loop ; not longer than 255 chars (127 real limit)
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toolong:sec ; indicate error
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rts
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str_end:iny ; room for terminating zero
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bmi toolong ; we only can handle lenght < 128
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ldy #128
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sty tmp3 ; save size
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jsr subysp ; make room on the stack
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; copy filename to the temp. place on the stack
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lda #0 ; end-of-string
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sta (sp),y ; Y still contains length + 1
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dey
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; copy filename to the temp. place on the stack, also uppercasing it
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ldy #0
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loop2: lda (ptr4),y
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sta (sp),y
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dey
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beq copy_end
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bmi L1 ; Not lowercase (also, invalid, should reject)
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cmp #'a'
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bcc L1 ; Not lowercase
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and #$DF ; make upper case char, assume ASCII chars
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sta (sp),y ; store back
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L1:
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iny
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bpl loop2 ; bpl: this way we only support a max. length of 127
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; Filename too long
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jsr addysp ; restore the stack
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sec ; indicate error
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rts
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copy_end:
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.ifdef DEFAULT_DEVICE
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lda tmp2
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cmp #1 ; was device present in passed string?
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beq hasdev2 ; yes, don't prepend something
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inc tmp3 ; no, prepend "D:" (or other device)
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inc tmp3 ; adjust stack size used
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inc tmp3
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ldy #128+3 ; no, prepend "D:" (or other device)
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sty tmp3 ; adjust stack size used
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ldy #3
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jsr subysp ; adjust stack pointer
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ldy #2
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lda #':'
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sta (sp),y ; insert ':'
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dey
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lda __defdev+1
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sta (sp),y ; insert device number
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cpdev: lda __defdev,y
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sta (sp),y ; insert device name, number and ':'
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dey
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lda __defdev
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sta (sp),y ; insert device name (normally 'D' or 'H')
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bpl cpdev
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hasdev2:
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.endif
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; uppercase the temp. filename
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ldx sp+1
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lda sp
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jsr _strupr
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; leave A and X pointing to the modified filename
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lda sp
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