goboy/journal/Day 1 - 2025.04.17.md

First wrote a brief overview of the first milestone of the project:

• load files form the os
• create the memory struct with read/write functions on the memory
• create a cpu state with registers

For the day:

• Setup goland
• Disable autocomplete on space because it doesn't work
• Find ways to store memory state in go
• Write memory module with read, write, writeall functions
• Reading or writing outside of memory bounds will close app
• Write cpu module with registers, PC, SP
• Are registers only 8bits?
• Where are instructions stored?

Conclusion

• Can read roms from external files
• Have a 64kb memory with functions to read and write to it
• Have a cpu which reads instructions from the memory and increments the PC

References:

Game Boy: Complete Technical Reference