32X emulation - emscripten

[ethanaobrien]

Hello all,

I've been working on trying to get 32X emulation working in the browser, however it appears to just load to a black screen (specifically 32x emulation). I've traced this back to a core issue, and after hours of digging through the program, I've came here for help.

The portion of the logs that caught my eye was particularly this section:

As this doesnt appear to occur on a native copy of RetroArch I've compiled.

Changes I've made so far:
Told libretro to not use mmap, since mmap location hints are not supported in emscripten.
My current emscripten target options are:

        TARGET := $(TARGET_NAME)_libretro_$(platform).bc
        ARCH = unknown

        STATIC_LINKING = 1
        STATIC_LINKING_LINK = 1

Any information leading to where I can get more logs, and what I can do to fix the issue would be appreciated.
Thank you

Edit: as a note, this is somehow possible, as there are several closed source versions of picodrive with working emscripten support (emulatorjs.com). Through some code injection I have managed to get the RetroArch/picodrive logs, and no ptr is not aliqned errors were present

[irixxxx]

I think the alignment for code pointers isn't working correctly. The Makefile sets -falign-functions=2 since the lowest bit of every code pointer must be 0. That bit is used to discriminate code pointers from memory pointers in a fast way.
Check that the -falign-functions option is set during compilation, or check for warnings from the compiler that it is ignored.

[ethanaobrien]

Got it, I've fixed that now.

New issue, I get a null function or function signature mismatch after running for a seconds which I traced to here

picodrive/cpu/cz80/cz80.c

Line 285 in 479f120

#include "cz80_op.c"

How should I debug this?

[irixxxx]

The easiest I can think of is to replace the include line with the whole content of the referenced file. That should give you a proper line number in the crash.