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added diskio.list_files(). ci-viewer now loads all *.ci files it finds.
This commit is contained in:
Irmen de Jong
parent
4f6c45c86c
commit
34babfb5de
@ -10,11 +10,11 @@ diskio {
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; -- Prints the directory contents of disk drive 8-11 to the screen. Returns success.
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c64.SETNAM(1, "$")
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c64.SETLFS(1, drivenumber, 0)
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void c64.OPEN() ; open 1,8,0,"$"
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c64.SETLFS(13, drivenumber, 0)
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void c64.OPEN() ; open 13,8,0,"$"
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if_cs
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goto io_error
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void c64.CHKIN(1) ; use #1 as input channel
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void c64.CHKIN(13) ; use #13 as input channel
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if_cs
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goto io_error
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@ -39,14 +39,14 @@ diskio {
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void c64.CHRIN()
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status = c64.READST()
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void c64.STOP()
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if_nz
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if_z
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break
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}
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io_error:
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status = c64.READST()
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c64.CLRCHN() ; restore default i/o devices
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c64.CLOSE(1)
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c64.CLOSE(13)
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if status and status != 64 { ; 64=end of file
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txt.print("\ni/o error, status: ")
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@ -66,13 +66,41 @@ io_error:
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uword list_pattern
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uword list_blocks
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ubyte iteration_in_progress = false
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str list_filename = "????????????????"
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str list_filename = "?" * 32
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; ----- get a list of files (uses iteration functions internally -----
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sub list_files(ubyte drivenumber, uword pattern, ubyte suffixmatch, 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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ubyte[256] names_buffer
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uword buf_ptr = &names_buffer
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ubyte files_found = 0
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if lf_start_list(drivenumber, pattern, suffixmatch) {
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while lf_next_entry() {
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@(name_ptrs) = lsb(buf_ptr)
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name_ptrs++
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@(name_ptrs) = msb(buf_ptr)
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name_ptrs++
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; ubyte length = strcpy(diskio.list_filename, buf_ptr)
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memcopy(diskio.list_filename, buf_ptr, strlen(list_filename)+1) ; todo replace with strcpy()
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buf_ptr += strlen(list_filename)+1
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files_found++
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if buf_ptr - &names_buffer > 256-18
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break
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if files_found == max_names
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break
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}
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lf_end_list()
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}
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return files_found
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}
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; ----- iterative file lister functions -----
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sub lf_start_list(ubyte drivenumber, uword pattern, ubyte suffixmatch) -> ubyte {
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; -- start an iterative file listing with optional prefix or suffix name matching.
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; note: only a single iteration loop can be active at a time!
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lf_end_list()
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list_pattern = pattern
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list_suffixmatch = suffixmatch
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@ -84,11 +112,11 @@ io_error:
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list_pattern_size = strlen(pattern)
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c64.SETNAM(1, "$")
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c64.SETLFS(1, drivenumber, 0)
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void c64.OPEN() ; open 1,8,0,"$"
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c64.SETLFS(12, drivenumber, 0)
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void c64.OPEN() ; open 12,8,0,"$"
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if_cs
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goto io_error
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void c64.CHKIN(1) ; use #1 as input channel
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void c64.CHKIN(12) ; use #12 as input channel
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if_cs
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goto io_error
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@ -112,10 +140,16 @@ io_error:
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if not iteration_in_progress
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return false
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while not c64.READST() {
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repeat {
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void c64.CHKIN(12) ; use #12 as input channel again
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uword nameptr = &list_filename
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ubyte blocks_lsb = c64.CHRIN()
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ubyte blocks_msb = c64.CHRIN()
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if c64.READST()
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goto close_end
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list_blocks = mkword(blocks_msb, blocks_lsb)
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; read until the filename starts after the first "
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@ -168,7 +202,7 @@ close_end:
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; -- end an iterative file listing session (close channels).
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if iteration_in_progress {
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c64.CLRCHN()
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c64.CLOSE(1)
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c64.CLOSE(12)
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iteration_in_progress = false
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}
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}
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@ -177,6 +211,8 @@ close_end:
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; ----- iterative file loader functions -----
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sub f_open(ubyte drivenumber, uword filenameptr) -> ubyte {
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; -- open a file for iterative reading with f_read
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; note: only a single iteration loop can be active at a time!
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f_close()
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c64.SETNAM(strlen(filenameptr), filenameptr)
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@ -184,7 +220,7 @@ close_end:
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void c64.OPEN() ; open 11,8,0,"filename"
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if_cc {
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iteration_in_progress = true
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void c64.CHKIN(11) ; use #2 as input channel
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void c64.CHKIN(11) ; use #11 as input channel
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if_cc
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return true
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}
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@ -197,6 +233,7 @@ close_end:
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return 0
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uword actual = 0
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void c64.CHKIN(11) ; use #11 as input channel again
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repeat buffersize {
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ubyte data = c64.CHRIN()
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@(bufferpointer) = data
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@ -2,6 +2,7 @@
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TODO
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====
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- add strcpy()
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- see if we can group some errors together for instance the (now single) errors about unidentified symbols
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- Cx16 target: support full-screen 640x480 and 320x240 graphics? That requires our own custom graphics routines though to draw lines.
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- hoist all variable declarations up to the subroutine scope *before* even the constant folding takes place (to avoid undefined symbol errors when referring to a variable from another nested scope in the subroutine)
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@ -54,9 +54,20 @@ main {
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ubyte[256] buffer4 ; .. and some more to be able to store 1280=
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ubyte[256] buffer5 ; two 640 bytes worth of bitmap scanline data
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str filename = "trsi256.ci"
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sub start() {
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str[20] filename_ptrs
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ubyte num_files = diskio.list_files(8, ".ci", true, &filename_ptrs, len(filename_ptrs))
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while num_files {
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num_files--
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show_image(filename_ptrs[num_files])
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}
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repeat {
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; endless loop
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}
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}
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sub show_image(uword filename) {
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ubyte read_success = false
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uword bitmap_load_address = progend()
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; uword max_bitmap_size = $9eff - bitmap_load_address
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@ -115,7 +126,7 @@ main {
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for y in 0 to lsb(height)-1 {
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void diskio.f_read(buffer, scanline_size)
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when bpp {
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8 -> display_scanline_256c(buffer, scanline_size)
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8 -> cx16.FB_set_pixels_from_buf(buffer, scanline_size) ; FB_set_pixels in rom v38 crashes with a size > 255 so we use our own replacement for now
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4 -> display_scanline_16c(buffer, scanline_size)
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2 -> display_scanline_4c(buffer, scanline_size)
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1 -> display_scanline_2c(buffer, scanline_size)
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@ -129,14 +140,10 @@ main {
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}
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diskio.f_close()
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if not read_success {
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if not read_success
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txt.print("error!\n")
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}
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}
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repeat {
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; endless loop
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else
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txt.print("ok\n")
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}
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}
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@ -171,11 +178,6 @@ main {
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}
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}
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sub display_scanline_256c(uword dataptr, uword numbytes) {
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; FB_set_pixels in rom v38 crashes with a size > 255 so we use our own replacement for now
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cx16.FB_set_pixels_from_buf(dataptr, numbytes)
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}
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sub display_scanline_16c(uword dataptr, uword numbytes) {
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; TODO
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}
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@ -6,6 +6,9 @@
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main {
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sub start() {
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txt.print("showing the full directory of drive 8:\n")
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diskio.directory(8)
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txt.chrout('\n')
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if diskio.lf_start_list(8, "cub", false) {
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txt.print("\nfiles starting with 'cub':\n")
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