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2018 Jul 22
2
Finding scratch register after function call
Thanks Bruce, and elaborately as ever. Again, I'm surprised about your very thorough Z80 knowledge when you said you only did little on the ZX81 in the eighties :D OK, understood. I was first thinking about doing something like this for small frames: 1. push bc # 1 byte; 11 cycles - part of call frame-cleanup: save scratch register +-----begin call-related 2. ld