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Joe Goes Small (< 4k)Joe Goes Small (< 4k)
Joe Developer had an astute comment about “Lots of Code on One Base Register” when he reminded me that lots ...
Instructions of the Day: AP and SP – Add and Subtract Packed DecimalInstructions of the Day: AP and SP – Add and Subtract Packed Decimal
Start learning the basics of decimal arithmetic in assembler by tackling how to add and subtract in packed decimal. This video ...
Structured Assembler Macros: The Case StatementStructured Assembler Macros: The Case Statement
Here’s a simple case statement using the HLASM structured CASE macro. Register 4 is selected (your choice not = 0) ...