ZX Spectrum Emulator in Go

Currently this is very simple ZX Spectrum 48k emulator. Written moslty by AI, but me also do my job.

Current status:

• Z80 emulation works well. Only one zexall.com test failed.
• ULA emulation works well. Refresh timings works. No ghosting support.
• Sound & TapeOut works ugly. TapeIn not realized.
• TAP loader works well.
• TZX hungs somewhere.
• No printer, kempston, etc support.

But this emulator already can play "/pkg/tape/testdata/batty.tap"

Building

To build the emulator:

go build -o zxgo cmd/zxgo/main.go

Running

To run the emulator:

./zxgo {file to load in tape player}

Profiling

To run the emulator with profiling enabled:

./zxgo -trace

This will generate three files:

• cpu.prof - CPU profiling data
• mem.prof - Memory profiling data
• trace.out - Execution trace data

Then analyze the profiles with:

go tool pprof cpu.prof
go tool pprof mem.prof
go tool trace trace.out