| .BSAVE Statement Details. |
|
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| BSAVE Statement Details |
|
| Syntax |
| BSAVE filespec,offset,length |
| |
| filespec A string expression containing the file or device name. |
| Output devices other than the console (SCRN: and CONS:) |
| are supported. |
| offset The offset of the starting address of the area in memory |
| to be saved. |
| length The number of bytes to save. This is a numeric |
| expression returning an unsigned integer in the range |
| 0-65,535. |
| |
| The BSAVE statement allows data or programs to be saved as memory-image |
| files on disk. A memory-image file is a byte-for-byte copy of what |
| is in memory along with control information used by BLOAD to |
| load the file. |
| |
| Note: Programs written in earlier versions of BASIC no longer work |
| if they use VARPTR to access numeric arrays. |
| |
| The starting address of the area saved is determined by the offset |
| and the most recent DEF SEG statement. |
| |
| If no DEF SEG statement is executed before the BSAVE statement, |
| the program uses the default BASIC data segment (DS). Otherwise, |
| BSAVE begins saving at the address specified by the offset and |
| by the segment set in the most recent DEF SEG statement. |
| |
| If the offset is a single- or double-precision floating-point value, |
| it is coerced to an integer. If the offset is a negative number in |
| the range -1 to -32,768, it is treated as an unsigned 2-byte offset. |
| |
| Note: Because different screen modes use memory differently, do not |
| load graphic images in a screen mode other than the one used |
| when the images were created. |
| |
| Differences From BASICA |
| |
| BSAVE does not support the cassette device. |
