BM1     BM2    BM3      BM4     BM5     BM6     BM7     BM8
ABC 800 single   0.9     1.8    6.0      5.9     6.3    11.6    19.6     2.9
ABC 800 double   1.2     2.2    10.0    10.6    11.0    17.8    26.4    14.4
IBM PC           1.5     5.2    12.1    12.6    13.6    23.5    37.4     3.5
Apple III        1.7     7.2    13.5    14.5    16.0    27.0    42.5     7.5
VIC-20           1.4     8.3    15.5    17.1    18.3    27.2    42.7     9.9
ZX81 "fastmode"  4.5     6.9    16.4    15.8    18.6    49.7    68.5    22.9

Maximite         0.016   0.144   0.196   0.205   0.354   0.512   0.721   0.310

Maximite w. #s   0.016   0.131   0.193   0.194   0.245   0.393   0.582   0.241
Maximite w/o #s  0.016   0.111   0.173   0.173   0.192   0.336   0.525   0.220
MicroMite 40MHz  0.028   0.18    0.285   0.289   0.644   0.892   1.346   0.376
MicroMite 48MHz  0.023   0.15    0.237   0.24    0.536   0.744   1.121   0.313
MM+ MX470 120MHz 0.013   0.082   0.135   0.135   0.265   0.380   0.597   0.174
MMX 198MHz       0.006   0.045   0.07    0.08    0.141   0.201   0.287   0.126
Picromite ZeroW  0.014   0.058   0.093   0.102   0.184   0.298   0.354   0.127
>MMB4L Pi-Z2W    0.011   0.030   0.034   0.035   0.066   0.114   0.163   0.064<***
Armmite H7       0.003   0.023   0.038   0.042   0.067   0.098   0.146   0.065
ArmMite F4       0.011   0.079   0.14    0.149   0.249   0.354   0.528   0.257
MMBASIC DOS      0.0002  0.0017  0.0028  0.0028  0.0073  0.0092  0.0117  0.0058
CMM2             0.00176 0.0118  0.01903 0.01728 0.03611 0.05062 0.07582 0.02851
PicoMite         0.0166  0.1096  0.1800  0.1840  0.3325  0.4715  0.6688  0.3193
MMB4L i7 2.9GHz  0.0000  0.0020  0.0040  0.0040  0.0080  0.0130  0.0190  0.0070

                BM1     BM2    BM3      BM4     BM5     BM6     BM7     BM8
ABC 800 single   0.9     1.8    6.0      5.9     6.3    11.6    19.6     2.9
ABC 800 double   1.2     2.2    10.0    10.6    11.0    17.8    26.4    14.4
IBM PC           1.5     5.2    12.1    12.6    13.6    23.5    37.4     3.5
Apple III        1.7     7.2    13.5    14.5    16.0    27.0    42.5     7.5
VIC-20           1.4     8.3    15.5    17.1    18.3    27.2    42.7     9.9
ZX81 "fastmode"  4.5     6.9    16.4    15.8    18.6    49.7    68.5    22.9

Maximite         0.016   0.144   0.196   0.205   0.354   0.512   0.721   0.310

Maximite w. #s   0.016   0.131   0.193   0.194   0.245   0.393   0.582   0.241
Maximite w/o #s  0.016   0.111   0.173   0.173   0.192   0.336   0.525   0.220
MicroMite 40MHz  0.028   0.18    0.285   0.289   0.644   0.892   1.346   0.376
MicroMite 48MHz  0.023   0.15    0.237   0.24    0.536   0.744   1.121   0.313
MM+ MX470 120MHz 0.013   0.082   0.135   0.135   0.265   0.380   0.597   0.174
MMX 198MHz       0.006   0.045   0.07    0.08    0.141   0.201   0.287   0.126
Picromite ZeroW  0.014   0.058   0.093   0.102   0.184   0.298   0.354   0.127
>MMB4L Pi-Z2W    0.011   0.030   0.034   0.035   0.066   0.114   0.163   0.064<***
Armmite H7       0.003   0.023   0.038   0.042   0.067   0.098   0.146   0.065
ArmMite F4       0.011   0.079   0.14    0.149   0.249   0.354   0.528   0.257
MMBASIC DOS      0.0002  0.0017  0.0028  0.0028  0.0073  0.0092  0.0117  0.0058
CMM2             0.00176 0.0118  0.01903 0.01728 0.03611 0.05062 0.07582 0.02851
PicoMite         0.0166  0.1096  0.1800  0.1840  0.3325  0.4715  0.6688  0.3193
MMB4L i7 2.9GHz  0.0000  0.0020  0.0040  0.0040  0.0080  0.0130  0.0190  0.0070
MMB4W I7 4-5GHz  0.00005 0.00032 0.00069 0.00046 0.00062 0.00096 0.0016  0.0008

> ?17\6
2
> ?17/6
2.833333333

ChangeLog
---------

Version 2022.01.00-a4 - 15-May-2022:
 - MMB4L is now open-source and licensed under a modified 4-clause BSD license
   similar to that for the PicoMite firmware and MMBasic for Windows. See the
   LICENSE file for details. My thanks to Geoff and Peter for allowing this to
   be possible.
 - Added * command which may be used at the MMBasic prompt (but not within
   programs) as a short-cut for RUN, e.g.
       *foo --bar "wombat"
   is translated to:
       RUN "foo", --bar "wombat"
 - Added ! command which may be used at the MMBasic prompt (but not within
   programs) as a short-cut for SYSTEM, e.g.
       !cp foo bar
   is translated to:
       SYSTEM "cp foo bar"
   An exception is !cd, e.g.
       !cd foo
   is translated to:
       CHDIR "foo"
   This is required because "!cd foo" would otherwise appear to do nothing
   due to the fact that each SYSTEM command is run in the context of a separate
   forked process instead of the MMBasic process itself.
 - Added SYSTEM sub-commands for getting and setting environment variables:
       - SYSTEM GETENV name$, {value$ | value%()}
       - SYSTEM SETENV name$, {value$ | value%()}
   This supplements MM.INFO$(ENVVAR) because it allows values > 255 characters
   to be read into a LONGSTRING.
 - Added option persistence to file "~/.mmbasic/mmbasic.options" for all
   options except for BASE, BREAK, CASE, CODEPAGE, CONSOLE, EXPLICIT and
   RESOLUTION:
       - only options that differ from their defaults are saved to this file.
 - Added OPTION EDITOR <editor> command to change the EDITor.
   Supported editors are:
       - ATOM
       - CODE     (synonym for VSCODE)
       - DEFAULT  (synonym for NANO)
       - GEANY
       - GEDIT
       - LEAFPAD
       - NANO
       - SUBLIME
       - VI
       - VIM
       - VSCODE
       - XED      (untested because I couldn't get a version for Ubuntu 21.)
       - or a string specifying a command to run, e.g.
             OPTION EDITOR "code -g ${file}:${line}"
         ${file} is a placeholder for the filename to edit, the filename will
                 be automatically enclosed in double-quoted.
         ${line} is a placeholder for the line number to set the initial
                 cursor position to.
 - Added OPTION F<num> string$ sub-commands to define the strings that will be
   generated when pressing function keys at the MMBasic prompt:
       - all of F1-F12 can be redefined.
       - beware that some function keys may be captured by the Linux window
         manager and never passed on to MMBasic.
 - Added OPTION SEARCH PATH <path> command as per CMM2.
 - Added OPTION {SAVE | LOAD} <filename> command.
 - Added OPTION RESET {ALL | <option>} command.
 - Added PEEK(DATAPTR) function and POKE DATAPTR ptr% command for getting
   and setting the DATA read pointer.
 - Added READ {RESTORE | SAVE} command for pushing and popping the DATA read
   position to an internal stack as per PicoMite.
 - Changed OPTION LIST to only show options that differ from their defaults:
        - use OPTION LIST ALL to list all options.
 - Changed OPTION <option> <value> command so that for all options with
   enumerated values the value can now be supplied as a string, e.g.
       OPTION CODEPAGE NONE
       OPTION CODEPAGE "NONE"
       DIM none$ = "NONE"
       OPTION CODEPAGE none$
 - Changed RESTORE command to support targets given as string or number
   expressions as per PicoMite.
 - Changed SYSTEM execute command to have a 3rd optional argument to capture
   the exit status of the executed command, e.g.
       SYSTEM command$, out$, exit_status%
       SYSTEM command$, out%(), exit_status%
   The SYSTEM command now only reports an error if it cannot run the command.
   If the command runs but fails then no error is reported and the failure
   code will be captured in exit_status%.
 - Changed LOAD and RUN so that if a filename without a [.bas|.BAS|.Bas]
   extension is not provided then one is automatically appended:
       - unlike other MMBasic ports MMB4L has a case-sensitive file-system
         and expects MMBasic program files to have one of three possible
         extensions: .bas, .BAS, or .Bas.
       - if no extension is specified then MMB4L will check for the existence
         of a file with each extension in order, if no such file is found then
         it assumes the .bas extension.
 - Changed assignment of values to MM.ERRNO, they are now:
          0      : no error.
      1  ..  255 : standard error numbers (errno) for C library calls.
         256     : unclassified MMBasic error.
     257 .. 1023 : other standard MMBasic errors.
        1024+    : recommended range for program specific errors.
 - Removed LS as an alias of FILES:
       - LS was a non-standard aberration inherited from the CMM2.
       - use !ls instead to execute the 'ls' Linux shell command with all its
         power and with no requirement to enquote its arguments.
 - Fixed bug where could not open non-existing file for RANDOM access.
 - Fixed bug where when one program tried to RUN another it would resolve the
   path to the new program from the current program directory instead of from
   the current working directory.
 - Fixed bugs in interaction between ON ERROR and interrupts.
   The normal thread of execution and the execution of interrupts now maintain
   independent error states.
 - Fixed bug where MM.ERRMSG$ would contain trailing newline character after
   an uncaught ERROR.
 - Fixed more issues with "mmbasic.syntax.nanorc".