I have been playing with FS-UAE on my RaspberryPI4 Rev1.1 board running bullseye 64bit lately and compiled 3.x from the stable branch using these CXXFLAGS:
Code:
export CXXFLAGS="-O2 -pipe -march=armv8-a+crc+simd+crypto -mcpu=cortex-a72 -mfloat-abi=hard -mfpu=crypto-neon-fp-armv8 -mneon-for-64bits -ftree-vectorize -funsafe-math-optimizations"
I
slightly overclocked my rpi rev 1.1 board:
/boot/config.txt:
Code:
gpu_mem=512
over_voltage=2
arm_freq=1700
gpu_freq=600
dtparam=random=on
[all]
dtoverlay=gpio-fan,gpiopin=14,temp=60000
Seems like this is a sweetspot for my configuration of my rpi4 in the armor casing using only passive cooling I never got over 75°C while running WHDLoad AGA demos and running this in the background for over an hour (performance mode):
Code:
stress --cpu 4 --io 4 --vm 2 --vm-bytes 128M --timeout 1200s
Setting: over_voltage=4, arm_freq=1800, gpu_freq=650 was causing artifacts on-screen after a while during AGA demo runs.
UAE conf:
Code:
accuracy=1
deterministic=1
uaem_write_flags=0
amiga_model=A1200
cpu=68020
kickstart_file=kick3141_1mb.rom
chip_memory=2048
fast_memory=8192
jit_compiler=0
uae_cpu_cycle_exact = false
uae_blitter_cycle_exact = false
uae_cycle_exact = false
uae_cpu_compatible = true
uae_cpu_speed = real
I must say it runs quiet good looking forward to try FS-UAE 4.x does lowering the sound frequency offer more performance?
Warning: Do not overclock your raspberry if you dont have a cooling solution or be very careful and watch your temps!
Thank you Frode for this nice emulator and thanks to the others for pointing out CFLAGS
