fix diskio.diskname(). cx16: add diskio.curdir()

compiler/res/prog8lib/cx16/diskio.p8

@@ -73,39 +73,42 @@ io_error:
     }
 
     sub diskname() -> uword {
-        ; -- Returns pointer to disk name string or 0 if failure.
-
-        cbm.SETNAM(1, "$")
-        cbm.SETLFS(12, drivenumber, 0)
-        ubyte okay = false
-        void cbm.OPEN()          ; open 12,8,0,"$"
+        ; returns disk label name or 0 if error
+        cbm.SETNAM(3, "$")
+        cbm.SETLFS(12, diskio.drivenumber, 0)
+        ubyte status = 1
+        void cbm.OPEN()          ; open 12,8,0,"$=c"
         if_cs
             goto io_error
         void cbm.CHKIN(12)        ; use #12 as input channel
         if_cs
             goto io_error
 
-        repeat 6 {
-            void cbm.CHRIN()     ; skip the 6 prologue bytes
+        while cbm.CHRIN()!='"' {
+            ; skip up to entry name
         }
-        if cbm.READST()!=0
-            goto io_error
 
-        cx16.r0 = &list_filename
+        cx16.r0 = &diskio.list_filename
         repeat {
             @(cx16.r0) = cbm.CHRIN()
-            if @(cx16.r0)==0
+            if @(cx16.r0)=='"' {
+                @(cx16.r0) = ' '
+                while @(cx16.r0)==' ' and cx16.r0>=&diskio.list_filename {
+                    @(cx16.r0) = 0
+                    cx16.r0--
+                }
                 break
+            }
             cx16.r0++
         }
-        okay = true
+        status = cbm.READST()
 
 io_error:
-        cbm.CLRCHN()        ; restore default i/o devices
+        cbm.CLRCHN()
         cbm.CLOSE(12)
-        if okay
-            return &list_filename
+        if status and status & $40 == 0
             return 0
+        return diskio.list_filename
     }
 
     ; internal variables for the iterative file lister / loader
@@ -684,6 +687,75 @@ internal_vload:
         send_command(list_filename)
     }
 
+    sub curdir() -> uword {
+        ; return current directory name or 0 if error
+        ; special X16 dos command to only return the current path in the entry list (R42+)
+        const ubyte MAX_PATH_LEN=80
+        uword reversebuffer = memory("curdir_buffer", MAX_PATH_LEN, 0)
+        cx16.r12 = reversebuffer + MAX_PATH_LEN-1
+        @(cx16.r12)=0
+        cbm.SETNAM(3, "$=c")
+        cbm.SETLFS(12, diskio.drivenumber, 0)
+        void cbm.OPEN()          ; open 12,8,0,"$=c"
+        if_cs
+            goto io_error
+        void cbm.CHKIN(12)        ; use #12 as input channel
+        if_cs
+            goto io_error
+
+        repeat 6 {
+            void cbm.CHRIN()
+        }
+        while cbm.CHRIN() {
+            ; skip first line (drive label)
+        }
+        while cbm.CHRIN()!='"' {
+            ; skip to first name
+        }
+        ubyte status = cbm.READST()
+        cx16.r10 = &list_filename
+        while status==0 {
+            repeat {
+                @(cx16.r10) = cbm.CHRIN()
+                if @(cx16.r10)==0
+                    break
+                cx16.r10++
+            }
+            while @(cx16.r10)!='"' and cx16.r10>=&list_filename {
+                @(cx16.r10)=0
+                cx16.r10--
+            }
+            @(cx16.r10)=0
+            prepend(list_filename)
+            cx16.r10 = &list_filename
+            while cbm.CHRIN()!='"' and status==0 {
+                status = cbm.READST()
+                ; skipping up to next entry name
+            }
+        }
+
+io_error:
+        cbm.CLRCHN()
+        cbm.CLOSE(12)
+        if status and status & $40 == 0
+            return 0
+        if @(cx16.r12)==0 {
+            cx16.r12--
+            @(cx16.r12)='/'
+        }
+        return cx16.r12
+
+        sub prepend(str dir) {
+            if dir[0]=='/' and dir[1]==0
+                return
+            cx16.r9L = string.length(dir)
+            cx16.r12 -= cx16.r9L
+            sys.memcopy(dir, cx16.r12, cx16.r9L)
+            cx16.r12--
+            @(cx16.r12)='/'
+        }
+    }
+
     sub relabel(str name) {
         ; -- change the disk label.
         list_filename[0] = 'r'

compiler/res/prog8lib/diskio.p8

@@ -84,8 +84,8 @@ io_error:
         if_cs
             goto io_error
 
-        repeat 6 {
-            void cbm.CHRIN()     ; skip the 6 prologue bytes
+        while cbm.CHRIN()!='"' {
+            ; skip up to entry name
         }
         if cbm.READST()!=0
             goto io_error
@@ -93,8 +93,14 @@ io_error:
         cx16.r0 = &list_filename
         repeat {
             @(cx16.r0) = cbm.CHRIN()
-            if @(cx16.r0)==0
+            if @(cx16.r0)=='"' {
+                @(cx16.r0) = ' '
+                while @(cx16.r0)==' ' and cx16.r0>=&diskio.list_filename {
+                    @(cx16.r0) = 0
+                    cx16.r0--
+                }
                 break
+            }
             cx16.r0++
         }
         okay = true

compiler/res/prog8lib/virtual/diskio.p8

@@ -0,0 +1 @@
+; there is no diskio yet for the VM target.

compiler/res/version.txt

@@ -1 +1 @@
-9.0
+9.1-dev

docs/docs.iml

@@ -5,7 +5,7 @@
     <content url="file://$MODULE_DIR$">
       <excludeFolder url="file://$MODULE_DIR$/build" />
     </content>
-    <orderEntry type="jdk" jdkName="Python 3.10 (py3)" jdkType="Python SDK" />
+    <orderEntry type="jdk" jdkName="Python 3.11" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
 </module>

docs/source/todo.rst

@@ -1,6 +1,14 @@
 TODO
 ====
 
+- c64 fix diskio.diskname
+
+- fix undefined symbol error for     sub curdir() -> str {  return "todo" }
+- fix placeholder error for
+    str result = "todo"  ,   sub curdir() -> str { return result }
+
+- document some library modules better (diskio, etc)
+
 ...
 
 

examples/test.p8

@@ -1,34 +1,17 @@
 %import textio
+%import diskio
 %zeropage basicsafe
 
 main {
     sub start() {
-        str name1 = "name1"
-        str name2 = "name2"
 
-        uword[] @split names = [name1, name2, "name3"]
-
-        uword ww
-;        for ww in names {
-;            txt.print(ww)
-;            txt.spc()
-;        }
-;        txt.nl()
-        ubyte idx=1
-        names[idx] = $20ff
-        txt.print_uwhex(names[1], true)
-        names[idx]++
-        txt.print_uwhex(names[1], true)
-        names[idx]--
-        txt.print_uwhex(names[1], true)
-
-        names = [1111,2222,3333]
-        for ww in names {
-            txt.print_uw(ww)
-            txt.spc()
-        }
-        txt.nl()
-        txt.print("end.")
+        txt.print("pwd: ")
+        txt.print(diskio.curdir())
+        txt.print("\ndisk name: ")
+        uword name = diskio.diskname()
+        if name
+            txt.print(name)
+        else
+            txt.print("!error!")
     }
 }
-