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by ygra
2714 days ago
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No idea about the Z80, but in uni we had to write assembler for a C167 which was a fun architecture and registers basically didn't exist. They were just mappings to memory in a given location. Granted, a few things only worked on registers and not on memory directly. I think something like addressing individual bits, but just reading and writing a value was effectively the same on memory and on a register name. I had no qualms at all to use memory as variables when convenient. I didn't have to use the stack at all in all the assignments as 16 registers and a handful DB sprinkled through the code for more locations to write to were enough – the disassembler in the debugger didn't like code interspersed with data, though. |
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This is how a lot of microcontroller architectures work, and indeed there are C compilers for them too.