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@@ -46,12 +46,17 @@
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46
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DEO2 instruction to 0x00ff. In order to execute File/load and have the
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CPU continue at memory location 0x0100, we write the final DEO2
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instruction there and jump there as our final act.
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+
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+ Just in case the assembled code is zero-length (which can occur when
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+ assembling an empty source file), we write a BRK to the reset vector so
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+ that will prevent an infinite loop.
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)
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;&dest-file .File/name DEO2
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#0000 .File/offset DEO2
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#ff00 .File/length DEO2
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#0100 .File/load
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LIT DEO2 #00ff STA
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+ LIT BRK #0100 STA
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#00ff JMP2
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&source-file
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