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License: Other
Source code for the book "Game Boy Assembly Programming for the Modern Game Developer"
License: Other
After reading the book (it is brief and awesome! thanks), I was trying to compile some examples, but few tools: i.e. mod2gbt, comes as sourcecode... and this becomes a PITA
It would be nice to have a zip file with everything needed to start hacking some asm examples in Windows, without having to look for individual pieces or compile anything
Then, two write the vector (5, 3)
should read as
Then, to write the vector (5, 3)
Thanks a lot for writing this document, I just started learning ASM for gameboy and it helps a lot!
The book currently refers to http://gbdev.gg8.se/wiki/articles/Pan_Docs, while the most up-to-date version of Pan Docs is at https://gbdev.io/pandocs/.
In addition,
ld
can load from memory addresses using special syntax:
ld [de], b
would copy the data from B onto a memory position specified by
the address stored on DE.
The only valid instructions containing [de]
are ld [de], a
and ld a, [de]
.
A hardcoded address can be used as well, like
ld [$ff83], 255
which writes the number 255 to memory position$FF83
.
An absolute address store can't have an immediate as the second operand. You'd be looking for ld [n16], a
.
It seems to load but says the connection is reset. It's linked to in the book and the README and this is the best place to report it as far as I can tell.
[...] the “swap” command swaps the top
four bits with the bottom four bits of A (so%11001010
becomes%10101100
).
These two only work on A, with no arguments.
swap
works on all 8-bit registers, including (of course) [hl]
.
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