Microsoft KB Archive/43090

= BC.EXE Command-Line Options for QuickBasic and Basic Compilers =

Article ID: 43090

Article Last Modified on 11/21/2006

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APPLIES TO


 * Microsoft QuickBasic 4.0
 * Microsoft QuickBASIC 4.0b
 * Microsoft QuickBasic 4.5 for MS-DOS

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This article was previously published under Q43090



SUMMARY
This article documents the BC.EXE command-line options available in QuickBasic versions 4.0, 4.0b, and 4.5 and in Microsoft Basic Compiler versions 6.00 and 6.00b (except note that the BC /t option is not available in QuickBasic 4.0).

These BC.EXE command-line options can also be found in the following manuals:


 * Pages 210 and 211 of the &quot;Microsoft QuickBasic 4.0: Learning and Using&quot; manual for QuickBasic 4.0 and 4.0b
 * Pages 210 and 211 of the &quot;Microsoft Basic Compiler 6.0: Learning and Using Microsoft QuickBasic&quot; manual, and additional options on pages 6, 7, and 8 of the &quot;Microsoft Basic Compiler 6.0: User's Guide&quot; for 6.0 and 6.0b
 * Pages 353 to 355 of the &quot;Microsoft QuickBasic 4.5: Programming in Basic&quot; manual for QuickBasic version 4.5.



MORE INFORMATION
Option Definition -- --

/a     Creates a listing of the disassembled object code for each source line and shows the assembly-language code generated by       the compiler.

/ah    Allows dynamic arrays of records, fixed-length strings, and numeric data to occupy all of available memory. If this option is not specified, the maximum size is 64K per array. Note that this option has no effect on the way data items are passed to       procedures. (See also the REM $DYNAMIC metacommand.)

/c: Sets the size ( = bytes) of the buffer receiving remote data using an asynchronous communications adapter for each communications port. (The transmission buffer is allocated 128       bytes for each communications port and cannot be changed on        the BC command line.)  This option has no effect if the asynchronous communications card is not present. The default buffer size is 256 bytes total for BOTH ports; the maximum size is 32,767 bytes. The default, /c:512, is automatically added when invoking the Make EXE File command from the Run menu in QuickBasic 4.0b and 4.5 (not in QuickBasic 4.0).

/d     Generates debugging code for run-time error checking and enables CTRL+BREAK. This option is the same as the Produce Debug Code option from the Run menu's Make EXE File command within the environment.

/e     Indicates the presence of ON ERROR with RESUME linenumber statements. (See also the discussion of the /x option in this       list.)

/mbf   Causes the QuickBasic conversion functions to treat IEEE-format numbers as Microsoft binary format numbers. The intrinsic functions MKS$, MKD$, CVS, and CVD are converted to       MKSMBF$, MKDMBF$, CVSMBF, and CVDMBF, respectively. See the &quot;Microsoft QuickBasic 4.0: Basic Language Reference&quot; manual or corresponding help for more information about these functions.

/o     Substitutes the appropriate BCOMxx.LIB stand-alone program library for the BRUNxx.LIB run-time module library.

/r     Stores arrays in row-major order. Basic normally stores arrays in column-major order. This option is useful if you are using other language routines that store arrays in row order.

/s     Writes quoted strings to the object file instead of the symbol table. Use this option when an &quot;Out of memory&quot; error message occurs in a program that has many string constants.

/t     This option stands for terse. It suppresses warning messages during compilation. However, severe error messages still are displayed. This option is not available in QuickBasic 4.0. Also, /t is automatically added to the BC command line in       QuickBasic 4.0b and 4.5 whenever you choose Make EXE File from within QB.EXE.

/v     Enables event trapping for communications (COM), light pen (PEN), joystick (STRIG), timer (TIMER), music buffer (PLAY), and function keys (KEY). Use this option to check between statements for an occurrence of an event.

/w     Enables event trapping for the same statements as /v, but checks at each line number or label for occurrence of an       event (thus /w does less-frequent checking than /v).

/x     Indicates presence of ON ERROR with RESUME, RESUME NEXT, or        RESUME 0.

/zd    Produces an object file containing line-number records corresponding to the line numbers of the source file. This option is useful when you want to perform source-level debugging using the Microsoft Symbolic Debug Utility (SYMDEB) available with Microsoft Macro Assembler version 4.0.

/zi    Produces an object file containing debugging information used by the Microsoft CodeView debugger, available with Microsoft C       version 5.0, Microsoft Macro Assembler version 5.0, and Microsoft Basic Compiler version 6.0.

The following BC.EXE options are supported in Microsoft Basic Compiler versions 6.0 and 6.0b, but not in QuickBasic 4.0, 4.0b, or 4.5:

/LP    Creates a protected-mode object file for use in MS OS/2 protected mode, no matter which operating system you are in at       compile time.

/LR    Creates a real-mode object file for use in MS-DOS or MS OS/2 real mode (DOS 3.x box), no matter which operating system you are in at compile time.

/FPi   Generates in-line (i) coprocessor instructions for floating point (FP) math. If a coprocessor is not present at run time, the Basic run-time system will emulate a coprocessor.

/FPa   Generates code using alternate (a) math library, which runs faster than emulating a coprocessor when none is present.

Additional query words: QuickBas BasicCom 4.00 4.00b 4.50 5.00 6.00 6.00b

Keywords: KB43090

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