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API change: diskio.list_files doesn't have an internal buffer anymore, you now have to supply a buffer + size yourself. Renamed to list_filenames
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@ -114,30 +114,31 @@ io_error:
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; ----- get a list of files (uses iteration functions internally) -----
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sub list_files(ubyte drivenumber, uword pattern_ptr, uword name_ptrs, ubyte max_names) -> ubyte {
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; -- fill the array 'name_ptrs' with (pointers to) the names of the files requested.
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; Returns number of files. Skips 'dir' entries (subdirs).
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const uword filenames_buf_size = 800
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uword filenames_buffer = memory("filenames", filenames_buf_size, 0)
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sub list_filenames(ubyte drivenumber, uword pattern_ptr, uword filenames_buffer, uword filenames_buf_size) -> ubyte {
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; -- fill the provided buffer with the names of the files on the disk (until buffer is full).
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; Files in the buffer are separeted by a 0 byte. You can provide an optional pattern to match against.
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; After the last filename one additional 0 byte is placed to indicate the end of the list.
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; Returns number of files (it skips 'dir' entries i.e. subdirectories).
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; Also sets carry on exit: Carry clear = all files returned, Carry set = directory has more files that didn't fit in the buffer.
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uword buffer_start = filenames_buffer
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ubyte files_found = 0
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if lf_start_list(drivenumber, pattern_ptr) {
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while lf_next_entry() {
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if list_filetype!="dir" {
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@(name_ptrs) = lsb(filenames_buffer)
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name_ptrs++
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@(name_ptrs) = msb(filenames_buffer)
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name_ptrs++
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filenames_buffer += string.copy(diskio.list_filename, filenames_buffer) + 1
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files_found++
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if filenames_buffer - buffer_start > filenames_buf_size-18
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break
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if files_found == max_names
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break
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if filenames_buffer - buffer_start > filenames_buf_size-20 {
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@(filenames_buffer)=0
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lf_end_list()
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sys.set_carry()
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return files_found
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}
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}
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}
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lf_end_list()
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}
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@(filenames_buffer)=0
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sys.clear_carry()
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return files_found
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}
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@ -364,6 +364,7 @@ diskio module, to deal with loading of potentially large files in to banked ram
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Routines to directly load data into video ram are also present (vload and vload_raw).
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Also contains a helper function to calculate the file size of a loaded file (although that is truncated
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to 16 bits, 64Kb)
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Als contains routines for operating on subdirectories (chdir, mkdir, rmdir) and to relabel the disk.
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psg (cx16 only)
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@ -3,7 +3,6 @@ TODO
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For next release
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^^^^^^^^^^^^^^^^
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- make diskio.list_files not use an internal buffer itself but change names_ptr meaning to user supplied buffer.
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- ir/vm: allow label in block scope (correct order of block nodes!)
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- regression test the various projects
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- attempt to fix the expression codegen bug with reused temp vars (github #89)
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