Out of Memory with picospeccy

[saarbastler]

Hi all, great project !

I have an issue with PIComuter Max and picospeccy. After starting a game it just stops working, only a Reset takes it back to the main menu. The MCUME\MCUME_pico\bin\PICOMPUTERMAX\mcume_picospeccy.uf2 is working fine, but I want to make code modifications.

So I added pico_enable_stdio_usb(mcume 1) target_compile_definitions(mcume PRIVATE PICO_DEBUG_MALLOC=1)

to the CMakeLists.txt and I got this output: `sd_spi_go_low_frequency: Actual frequency: 100000 V2-Version Card R3/R7: 0x1aa R3/R7: 0xff8000 R3/R7: 0xc0ff8000 Card Initialized: High Capacity Card SD card initialized SDHC/SDXC Card: hc_c_size: 15199 Sectors: 15564800 Capacity: 7600 MB sd_spi_go_high_frequency: Actual frequency: 1000000 malloc 1120 20034430->20034890 malloc 1120 20034430->20034890 malloc 1120 20034430->20034890 malloc 1120 20034430->20034890 malloc 1120 20034430->20034890 malloc 1120 20034430->20034890 malloc 1120 20034430->20034890 malloc 1120 20034430->20034890 SD initialized, files found: 6 malloc 1120 20034430->20034890 new filepath is spec/SpaceIntruders.z80 malloc 1120 20034430->20034890 malloc 320 20034430->20034570 could allocate dynamic 320 malloc 49152 00000000->0000C000

PANIC

Out of memory`

malloc did not work with 49152 bytes, not enough memory left. Do you have an idea, why your uf2 file is working, but my local build does not ?

Regards, saarbastler

[Jean-MarcHarvengt]

The file is probably too big? have you tried a smaller z80 file? As I recall only spectrum 48k is supported, not 128k games

[saarbastler]

I'm interested in Spectrum 48k only, because I had one, long time ago ...

The system allways allocate 48k Ram, independent of the file size: spec.c

All the z80 files I tested, are working with your build mcume_picospeccy.uf2, so I guess it's just a cmake configuration issue.

[saarbastler]

Hi,

I made a fork and modified the code not to use malloc reading z80 files: https://github.com/saarbastler/MCUME/commit/d949173cbc4cf4b53df6265b93053fd06faa2830

It's working fine, but I was not able to test the "New Version" part: https://github.com/saarbastler/MCUME/blob/d949173cbc4cf4b53df6265b93053fd06faa2830/MCUME_pico/picospeccy/zx_filetyp_z80.c#L234 because I didn't found a "new version" z80 file