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Learning Assembly Language on the TRS-80/Tandy Color Computer

Introduction It's been a dream of mine to learn how to write assembly language programs ever since I bought my first computer back in about 1987 - a Tandy Color Computer 3 (CoCo3).  I learned how to write BASIC programs on that computer, working my way through the many example programs in the excellent user manual it came with.  But, I knew to really take advantage of the computer I'd need to learn to program in assembly language.  All of the best games on the CoCo3 were written in assembly language, which provided better speed, smoother scrolling, digital audio clips and more.  But, I really never had the resources back then to get started.  I didn't know anyone else who had learned this, didn't know what books to find or where to start research.  All I knew was that EDTASM+ was a well-known assembler cartridge, but that it was created for the earlier CoCo1 and CoCo2 models and thus didn't take advantage of any of the graphics improvements on the CoCo3. A ...

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