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Home Page: https://gekkio.fi/files/gb-docs/gbctr.pdf
License: Creative Commons Attribution Share Alike 4.0 International
Game Boy: Complete Technical Reference
Home Page: https://gekkio.fi/files/gb-docs/gbctr.pdf
License: Creative Commons Attribution Share Alike 4.0 International
Are you planning to add the missing opcodes?
The M-cycle duration for conditional RET cc=true is listed as "4". I'm not sure if this is correct. PanDocs and the gblargg instr_timing test think that "5" is the correct answer.
I'm still pretty new to those stuff so I could definitely be wrong, but.. is the triple decrement here actually right or is it a mistake? Because it looks like POP rr
only increments the stack pointer twice, so it seems a bit weird to me that doing a PUSH
followed by a POP
doesn't actually restore the same SP
as before.
https://github.com/Gekkio/gb-ctr/blob/master/chapter/cpu/instruction-set.tex#L713-L715
Awesome work btw, I love the timing diagrams in this manual!!
In the bus timing diagrams, there's no "data" block for the 0xFE00-0xFFFF range diagrams, both read and write. Is it by mistake, or there's something special about this range and data bits are passed in some other way?
gb-ctr/appendix/external-bus.tex
Line 85 in 9bc0999
gb-ctr/appendix/external-bus.tex
Line 156 in 9bc0999
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