diff --git a/data/Tupfile.lua b/data/Tupfile.lua
index 685e6e1ba..45e88692d 100644
--- a/data/Tupfile.lua
+++ b/data/Tupfile.lua
@@ -468,6 +468,7 @@ tup.append_table(img_files, {
  {"DEMOS/ZEROLINE", VAR_PROGS .. "/demos/zeroline/trunk/zeroline"},
  {"DEVELOP/ASCIIVJU", VAR_PROGS .. "/develop/asciivju/trunk/asciivju"},
  {"DEVELOP/BOARD", VAR_PROGS .. "/system/board/trunk/board"},
+ {"DEVELOP/DBGBOARD", VAR_PROGS .. "/system/dbgboard/dbgboard"},
  {"DEVELOP/CEDIT", SRC_PROGS .. "/develop/cedit/CEDIT"},
  {"DEVELOP/COBJ", VAR_PROGS .. "/develop/cObj/trunk/cObj"},
  {"DEVELOP/ENTROPYV", VAR_PROGS .. "/develop/entropyview/entropyview"},
diff --git a/programs/if.inc b/programs/if.inc
new file mode 100644
index 000000000..b410a9bc2
--- /dev/null
+++ b/programs/if.inc
@@ -0,0 +1,507 @@
+
+; Macroinstructions for HLL-style conditional operations
+
+macro .if [arg]
+{
+  common
+  __IF equ
+  local ..endif
+  __ENDIF equ ..endif
+  local ..else
+  __ELSE equ ..else
+  JNCOND __ELSE,arg
+}
+
+macro .else
+{
+  jmp __ENDIF
+  __ELSE:
+  restore __IF
+  __IF equ ,
+}
+
+macro .elseif [arg]
+{
+  common
+  jmp __ENDIF
+  __ELSE:
+  restore __ELSE
+  local ..else
+  __ELSE equ ..else
+  JNCOND __ELSE,arg
+}
+
+macro .endif
+{
+  if __IF eq
+   __ELSE:
+  end if
+  __ENDIF:
+  restore __ELSE
+  restore __ENDIF
+  restore __IF
+}
+
+macro .while [arg]
+{
+  common
+  local ..while
+  __WHILE equ ..while
+  local ..endw
+  __ENDW equ ..endw
+  __WHILE:
+  JNCOND __ENDW,arg
+}
+
+macro .endw
+{
+  jmp __WHILE
+  __ENDW:
+  restore __ENDW
+  restore __WHILE
+}
+
+macro .repeat
+{
+  local ..repeat
+  __REPEAT equ ..repeat
+  __REPEAT:
+}
+
+macro .until [arg]
+{
+  common
+  JNCOND __REPEAT,arg
+  restore __REPEAT
+}
+
+jnne equ je
+jnna equ ja
+jnnb equ jb
+jnng equ jg
+jnnl equ jl
+jnnae equ jae
+jnnbe equ jbe
+jnnge equ jge
+jnnle equ jle
+
+macro JNCOND label,v1,c,v2
+{
+ match any,c
+ \{
+   cmp v1,v2
+   jn\#c label
+ \}
+ match ,c
+ \{
+   PARSECOND parsed@cond,v1
+   match cond,parsed@cond \\{ JNCONDEXPR label,cond \\}
+ \}
+}
+
+gt equ >
+lt equ <
+
+macro PARSECOND parsed,cond
+{
+ define parsed
+ define neg@cond
+ define status@cond
+ define nest@cond
+ irps symb,cond
+ \{
+   define symb@cond symb
+   match >,symb
+   \\{
+      define symb@cond gt
+   \\}
+   match <,symb
+   \\{
+      define symb@cond lt
+   \\}
+   current@cond equ status@cond
+   match ,current@cond
+   \\{
+      match ~,symb
+      \\\{
+	  neg@cond equ neg@cond ~
+	  match ~~,neg@cond
+	  \\\\{
+	       define neg@cond
+	  \\\\}
+	  define symb@cond
+      \\\}
+      match (,symb
+      \\\{
+	  parsed equ parsed neg@cond,<
+	  define nest@cond +
+	  define symb@cond
+	  define neg@cond
+      \\\}
+      match any,symb@cond
+      \\\{
+	  parsed equ parsed neg@cond,symb@cond
+	  define status@cond +
+      \\\}
+   \\}
+   match status,current@cond
+   \\{
+      match &,symb
+      \\\{
+	  parsed equ parsed,&,
+	  define status@cond
+	  define symb@cond
+	  define neg@cond
+      \\\}
+      match |,symb
+      \\\{
+	  parsed equ parsed,|,
+	  define status@cond
+	  define symb@cond
+	  define neg@cond
+      \\\}
+      match (,symb
+      \\\{
+	  define nest@cond (
+      \\\}
+      match ),symb
+      \\\{
+	  match +,nest@cond
+	  \\\\{
+	       parsed equ parsed>
+	       define symb@cond
+	  \\\\}
+	  restore nest@cond
+      \\\}
+      match any,symb@cond
+      \\\{
+	  parsed equ parsed symb@cond
+      \\\}
+   \\}
+ \}
+}
+
+macro define_JNCONDEXPR
+{
+ macro JNCONDEXPR elabel,[mod,cond,op]
+ \{
+  \common
+   \local ..t,..f
+   define t@cond ..t
+   define f@cond ..f
+  \forward
+   match ,op
+   \\{
+      match ,mod \\\{ JNCONDEL elabel,<cond> \\\}
+      match ~,mod \\\{ JCONDEL elabel,<cond> \\\}
+   \\}
+   match &:flabel:tlabel, op:f@cond:t@cond
+   \\{
+      match ,mod \\\{ JNCONDEL flabel,<cond> \\\}
+      match ~,mod \\\{ JCONDEL flabel,<cond> \\\}
+      tlabel:
+      \\local ..tnew
+      restore t@cond
+      define t@cond ..tnew
+   \\}
+   match |:flabel:tlabel, op:f@cond:t@cond
+   \\{
+      match ,mod \\\{ JCONDEL tlabel,<cond> \\\}
+      match ~,mod \\\{ JNCONDEL tlabel,<cond> \\\}
+      flabel:
+      \\local ..fnew
+      restore f@cond
+      define f@cond ..fnew
+   \\}
+  \common
+   label f@cond at elabel
+   t@cond:
+   restore t@cond
+   restore f@cond
+ \}
+}
+
+macro define_JCONDEXPR
+{
+ macro JCONDEXPR elabel,[mod,cond,op]
+ \{
+  \common
+   \local ..t,..f
+   define t@cond ..t
+   define f@cond ..f
+  \forward
+   match ,op
+   \\{
+      match ,mod \\\{ JCONDEL elabel,<cond> \\\}
+      match ~,mod \\\{ JNCONDEL elabel,<cond> \\\}
+   \\}
+   match |:flabel:tlabel, op:f@cond:t@cond
+   \\{
+      match ,mod \\\{ JCONDEL flabel,<cond> \\\}
+      match ~,mod \\\{ JNCONDEL flabel,<cond> \\\}
+      tlabel:
+      \\local ..tnew
+      restore t@cond
+      define t@cond ..tnew
+   \\}
+   match &:flabel:tlabel, op:f@cond:t@cond
+   \\{
+      match ,mod \\\{ JNCONDEL tlabel,<cond> \\\}
+      match ~,mod \\\{ JCONDEL tlabel,<cond> \\\}
+      flabel:
+      \\local ..fnew
+      restore f@cond
+      define f@cond ..fnew
+   \\}
+  \common
+   label f@cond at elabel
+   t@cond:
+   restore t@cond
+   restore f@cond
+ \}
+}
+
+macro define_JNCONDEL
+{
+ macro JNCONDEL label,cond
+ \{
+   \local COND
+   match car=,cdr,:cond
+   \\{
+      define_JNCONDEXPR
+      define_JCONDEXPR
+      define_JCONDEL
+      define_JNCONDEL
+      JNCONDEXPR label,cond
+      purge JNCONDEXPR,JCONDEXPR,JCONDEL,JNCONDEL
+      define COND
+   \\}
+   match c,cond ; replace gt and lt
+   \\{
+      match =COND =signed v1>==v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jl label
+	  define COND
+      \\\}
+      match =COND =signed v1<==v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jg label
+	  define COND
+      \\\}
+      match =COND v1>==v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jb label
+	  define COND
+      \\\}
+      match =COND v1<==v2, COND c
+      \\\{
+	  cmp v1,v2
+	  ja label
+	  define COND
+      \\\}
+      match =COND v1==v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jne label
+	  define COND
+      \\\}
+      match =COND v1<>v2, COND c
+      \\\{
+	  cmp v1,v2
+	  je label
+	  define COND
+      \\\}
+      match =COND =signed v1>v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jle label
+	  define COND
+      \\\}
+      match =COND =signed v1<v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jge label
+	  define COND
+      \\\}
+      match =COND v1>v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jbe label
+	  define COND
+      \\\}
+      match =COND v1<v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jae label
+	  define COND
+      \\\}
+      match =COND =ZERO?, COND c
+      \\\{
+	  jnz label
+	  define COND
+      \\\}
+      match =COND =CARRY?, COND c
+      \\\{
+	  jnc label
+	  define COND
+      \\\}
+      match =COND =OVERFLOW?, COND c
+      \\\{
+	  jno label
+	  define COND
+      \\\}
+      match =COND =SIGN?, COND c
+      \\\{
+	  jns label
+	  define COND
+      \\\}
+      match =COND =PARITY?, COND c
+      \\\{
+	  jnp label
+	  define COND
+      \\\}
+      match =COND v, COND c
+      \\\{
+	  if v eqtype 0
+	   if ~ v
+	    jmp label
+	   end if
+	  else if v eqtype eax
+	   test v,v
+	   jz label
+	  else
+	   cmp v,0
+	   je label
+	  end if
+      \\\}
+   \\}
+ \}
+}
+
+macro define_JCONDEL
+{
+ macro JCONDEL label,cond
+ \{
+   \local COND
+   match car=,cdr,:cond
+   \\{
+      define_JNCONDEXPR
+      define_JCONDEXPR
+      define_JCONDEL
+      define_JNCONDEL
+      JCONDEXPR label,cond
+      purge JNCONDEXPR,JCONDEXPR,JCONDEL,JNCONDEL
+      define COND
+   \\}
+   match c,cond ; replace gt and lt
+   \\{
+      match =COND =signed v1>==v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jge label
+	  define COND
+      \\\}
+      match =COND =signed v1<==v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jle label
+	  define COND
+      \\\}
+      match =COND v1>==v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jae label
+	  define COND
+      \\\}
+      match =COND v1<==v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jbe label
+	  define COND
+      \\\}
+      match =COND v1==v2, COND c
+      \\\{
+	  cmp v1,v2
+	  je label
+	  define COND
+      \\\}
+      match =COND v1<>v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jne label
+	  define COND
+      \\\}
+      match =COND =signed v1>v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jg label
+	  define COND
+      \\\}
+      match =COND =signed v1<v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jl label
+	  define COND
+      \\\}
+      match =COND v1>v2, COND c
+      \\\{
+	  cmp v1,v2
+	  ja label
+	  define COND
+      \\\}
+      match =COND v1<v2, COND c
+      \\\{
+	  cmp v1,v2
+	  jb label
+	  define COND
+      \\\}
+      match =COND =ZERO?, COND c
+      \\\{
+	  jz label
+	  define COND
+      \\\}
+      match =COND =CARRY?, COND c
+      \\\{
+	  jc label
+	  define COND
+      \\\}
+      match =COND =OVERFLOW?, COND c
+      \\\{
+	  jo label
+	  define COND
+      \\\}
+      match =COND =SIGN?, COND c
+      \\\{
+	  js label
+	  define COND
+      \\\}
+      match =COND =PARITY?, COND c
+      \\\{
+	  jp label
+	  define COND
+      \\\}
+      match =COND v, COND c
+      \\\{
+	  if v eqtype 0
+	   if v
+	    jmp label
+	   end if
+	  else if v eqtype eax
+	   test v,v
+	   jnz label
+	  else
+	   cmp v,0
+	   jne label
+	  end if
+      \\\}
+   \\}
+ \}
+}
+
+define_JNCONDEXPR
+define_JCONDEXPR
+define_JNCONDEL
+define_JCONDEL
diff --git a/programs/system/dbgboard/Tupfile.lua b/programs/system/dbgboard/Tupfile.lua
new file mode 100644
index 000000000..77574a326
--- /dev/null
+++ b/programs/system/dbgboard/Tupfile.lua
@@ -0,0 +1,2 @@
+if tup.getconfig("NO_FASM") ~= "" then return end
+tup.rule("dbgboard.asm", "fasm %f %o " .. tup.getconfig("KPACK_CMD"), "dbgboard")
diff --git a/programs/system/dbgboard/dbgboard.asm b/programs/system/dbgboard/dbgboard.asm
new file mode 100644
index 000000000..eac506874
--- /dev/null
+++ b/programs/system/dbgboard/dbgboard.asm
@@ -0,0 +1,240 @@
+format binary as ""
+use32
+org 0
+db      'MENUET01'    ; signature
+dd      1             ; header version
+dd      start         ; entry point
+dd      _image_end    ; end of image
+dd      _memory       ; required memory size
+dd      _stacktop     ; address of stack top
+dd      _cmdline      ; buffer for command line arguments
+dd      0             ; buffer for path
+
+; __DEBUG__       = 1
+; __DEBUG_LEVEL__ = DBG_ALL
+; DBG_ALL       = 0  ; all messages
+; DBG_INFO      = 1  ; info and errors
+; DBG_ERR       = 2  ; only errors
+
+include '../../macros.inc'
+purge mov,add,sub
+include '../../KOSfuncs.inc'
+; include '../../debug-fdo.inc'
+include '../../proc32.inc'
+include '../../dll.inc'
+include '../../if.inc'
+include '../../string.inc'
+
+CON_WINDOW_CLOSED = 0x200
+
+TEXT_COLOR_YELLOW = 14
+TEXT_COLOR_WHITE  = 15
+TEXT_COLOR_LIGHTGRAY = 7
+; TEXT_COLOR_LIGHTGREEN = 10
+
+proc set_text_color stdcall uses eax, _color
+        and     [_color], 0x0F
+        invoke  con_get_flags
+        and     eax, 0x3F0
+        or      eax, [_color]
+        invoke  con_set_flags, eax
+        ret
+endp
+
+; returns eax = 0 or fs error code
+proc get_file_attrib stdcall uses ebx, _path, _buf
+        push    [_path]
+        dec     esp
+        mov     byte[esp], 0
+        push    [_buf] ; 40 bytes buf
+        push    0
+        push    0
+        push    0
+        push    SSF_GET_INFO
+        mov     ebx, esp
+        mcall   SF_FILE
+        add     esp, 25
+        ret
+endp
+
+; returns eax = 0 or fs error code
+proc create_file stdcall uses ebx, _path
+        push   [_path]
+        dec    esp
+        mov    byte[esp], 0
+        push   0
+        push   0
+        push   0
+        push   0
+        push   SSF_CREATE_FILE
+        mov    ebx, esp
+        mcall  SF_FILE
+        add    esp, 25
+        ret
+endp
+
+; returns eax = 0 or fs error code
+proc write_file stdcall uses ebx, _path, _buf, _count, _pos_lo, _pos_hi, _out_bytes_written
+        push   [_path]
+        dec    esp
+        mov    byte[esp], 0
+        push   [_buf]
+        push   [_count]
+        push   [_pos_hi]
+        push   [_pos_lo]
+        push   SSF_WRITE_FILE
+        mov    ebx, esp
+        mcall  SF_FILE
+        add    esp, 25
+        mov    ecx, [_out_bytes_written]
+        mov    [ecx], ebx
+        ret
+endp
+
+start:
+        ;; if there is a second instance of conboard is running then exit
+        mcall   SF_THREAD_INFO, thread_info, -1
+        stdcall string.copy, thread_info + process_information.process_name, thread_name
+        stdcall string.to_lower_case, thread_name
+        xor     edx, edx ; conboard instance count
+        xor     esi, esi
+        .while esi < 256 ; NOTE: add to macros.inc MAX_THREAD_COUNT = 256
+            mcall SF_THREAD_INFO, thread_info, esi
+            .if [thread_info + process_information.slot_state] <> TSTATE_FREE
+                stdcall string.to_lower_case, thread_info + process_information.process_name
+                stdcall string.cmp, thread_info + process_information.process_name, thread_name, -1
+                .if eax = 0
+                    inc edx
+                    .if edx >= 2
+                        jmp .raw_exit
+                    .endif
+                .endif
+            .endif
+            inc esi
+        .endw
+
+        stdcall dll.Load, @IMPORT
+        test    eax, eax
+        jnz     .exit
+
+        invoke  con_start, 1
+        invoke  con_init, 80, 32, -1, -1, title
+
+        .if byte [_cmdline] <> 0
+            mov [log_file_path], _cmdline
+        .endif
+
+.main_loop:
+        invoke con_kbhit
+        .if eax = 1
+            invoke con_getch2
+            .if ah = 60 ; F2
+                mov eax, [log_file_path]
+                mov [struct_open_in_notepad.filename], eax
+                mcall SF_FILE, struct_open_in_notepad
+            .endif
+        .endif
+
+        mcall   SF_BOARD, SSF_DEBUG_READ
+        .if ebx = 0
+            mcall SF_SLEEP, 50
+            jz .main_loop_cond
+        .endif
+        mov     [chr], al
+
+        .if [is_start_line] = 1
+            mov eax, prefix
+            add eax, [prefix_index]
+            mov bl, byte [chr]
+            mov [eax], bl
+            .if [prefix_index] = 2
+                .if dword [prefix] = 'K :'
+                    stdcall set_text_color, TEXT_COLOR_YELLOW
+                .elseif dword [prefix] = 'L: '
+                    stdcall set_text_color, TEXT_COLOR_WHITE
+                .else
+                    stdcall set_text_color, TEXT_COLOR_LIGHTGRAY
+                .endif
+                mov     [is_start_line], 0
+                mov     [prefix_index], 0
+                invoke  con_write_asciiz, prefix
+                mov     dword [prefix], 0
+            .else
+                inc [prefix_index]
+            .endif
+        .else
+            invoke con_write_asciiz, chr
+            .if byte [chr] = 10
+                mov [is_start_line], 1
+                stdcall set_text_color, TEXT_COLOR_LIGHTGRAY
+            .endif
+        .endif
+
+        stdcall get_file_attrib, [log_file_path], file_info_buf
+        .if eax = 5 ; file not found
+            stdcall create_file, [log_file_path]
+        .endif
+        stdcall write_file, [log_file_path], chr, 1, dword [file_info_buf + 32], dword [file_info_buf + 32 + 4], bytes_written
+
+.main_loop_cond:
+        invoke  con_get_flags
+        and     eax, CON_WINDOW_CLOSED
+        test    eax, eax
+        jz      .main_loop
+
+.exit:
+        invoke  con_exit, 0
+.raw_exit:
+        mcall   SF_TERMINATE_PROCESS
+
+
+; data:
+title         db 'Debug & message board',0
+log_file_path dd default_log_file_path
+default_log_file_path db '/tmp0/1/BOARDLOG.TXT',0
+prefix        db 0,0,0,0
+prefix_index  dd 0
+is_start_line dd 1
+bytes_written dd 0
+chr           db 0, 0
+
+struct_open_in_notepad:
+        dd SSF_START_APP
+        dd 0
+        .filename dd ?
+        dd 0
+        dd 0
+        db '/sys/develop/cedit', 0
+
+
+; include_debug_strings
+
+align 4
+@IMPORT:
+library console, 'console.obj'
+import  console, \
+        con_start,      'START', \
+        con_init,       'con_init', \
+        con_write_asciiz, 'con_write_asciiz', \
+        con_exit,       'con_exit', \
+        con_kbhit,      'con_kbhit', \
+        con_getch2,     'con_getch2', \
+        con_set_flags,  'con_set_flags', \
+        con_get_flags,  'con_get_flags'
+
+align 16
+_image_end:
+
+file_info_buf rb 40
+
+align 4
+_cmdline rb 256
+
+thread_info     process_information
+thread_name     rb 16
+
+; reserve for stack:
+rb      4096
+align 16
+_stacktop:
+_memory: