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> The 6809 is a fun processor to program in assembly and still my favorite 8-bit chip. The 8086/88 was such a let down after it. Yes! I learned assembly on thg
by jjav 5y ago
> The 6809 is a fun processor to program in assembly and still my favorite 8-bit chip. The 8086/88 was such a let down after it.
Yes! I learned assembly on thge 6809 and had a hard time believing what a step down the 8086 was a few years later when I encountered it.
- PaulHoule 5y agoThe 6809 is the one chip I've coded for which has fewer registers than the 8086! I liked 6809 assembly (easy to write position independent code, Motorola had found religion in ROMable libraries) but I liked 8086 assembly to. In a high-level language you were forced to pick a 'tiny', 'small', 'medium', 'large' memory model based on how much code and data you had. In assembly you could do clever things with the segmentation registers (copy from one segment to another, using the same index register for the source and destinations)