Loads a memory-image file created by BSAVE statement into memory at the specified location.
BLOAD filename[, offset]`
filename is a string expression that specifies the file containing the image to load.
offset is a valid numeric expression within the range of 0 to 65535. This is the offset into the segment, declared by the last DEF SEG statement, where loading is to start.
If offset is omitted, the offset specified at BSAVE is assumed; that is, the file is loaded into the same location it was saved from.
BLOAD and BSAVE work together to provide you with a quick and convenient way to load array values or graphics images.
Do not use BLOAD with files created by BASICA. QBasic and `BASICA* store items differently in memory.
BLOAD does not perform an address range check. It is possible to BLOAD anywhere in memory. You must not BLOAD over the BASIC stack space, a BASIC program, or the BASIC variable area.
While BLOAD and BSAVE are useful for loading and saving machine language programs, they are not restricted to them. The DEF SEG statement lets you specify any segment as the source or target for BLOAD and BSAVE. For example, this allows the video screen buffer to be read from or written to the diskette. BLOAD and BSAVE are useful in saving and displaying graphic images.
' Create an array called SALES
DIM sales (1 TO 500)
' Set the segment address to the start of SALES
DEF SEG = VARSEG(sales(1))
' Load the array using BLOAD
BLOAD "SALES.DAT", VARPTR(sales(1))
' Return to the BASIC data segment
DEF SEG