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41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
if (exec_args[1] === undefined) {
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println("Usage: load myfile.exc")
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println(" This will load the binary image onto the Core Memory")
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return 1
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}
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let infilePath = _G.shell.resolvePathInput(exec_args[1]).full
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let infile = files.open(infilePath)
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const metaArea = sys.malloc(12)
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infile.pread(metaArea, 12, 0)
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let intent = sys.peek(metaArea+4) // 2 for executable, 3 for shared
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let addrToLoad = (sys.peek(metaArea+5) << 16) | (sys.peek(metaArea+6) << 8) | (sys.peek(metaArea+7))
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const imageSize = (sys.peek(metaArea+9) << 16) | (sys.peek(metaArea+10) << 8) | (sys.peek(metaArea+11))
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sys.free(metaArea)
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if (addrToLoad == 0)
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addrToLoad = sys.malloc(imageSize + 4)
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else
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sys.forceAlloc(addrToLoad, imageSize + 4)
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// if it's a shared library, put it into the global table
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if (3 == intent) {
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// create the table if it's not there
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if (!_G.SO)
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_G.SO = {}
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let libname = infile.path.split("\\").last().substringBeforeLast(".")
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_G.SO[libname] = addrToLoad
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}
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// writes IMAGE_SIZE and the BINARY_IMAGE directly to the memory
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infile.pread(addrToLoad, imageSize + 4, 8)
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infile.close()
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// write magic 0xA5 to the beginning of the image area
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sys.poke(addrToLoad, 0xA5)
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println(addrToLoad.toString(16).toUpperCase() + "h")
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return addrToLoad |