interp
Testing interpreter dispatch methods: Switching, Direct Threaded Code, Indirect Threaded Code, Tail-Calls and machine code Inlining.
Supports x86, x86-64, arm, aarch64, mips, mipsel, rv32, rv64, xtensa architectures.
Building on Linux
clang main.c -I./src -Os -fPIC -o interp
# Or use GCC:
#gcc main.c -I./src -Os -fPIC -o interp
./interp
Generating Code @ 0x7f9b51765000
Code: 166 bytes
Stack: 00000000 00000000 00000000Building for ESP8266/ESP32/ARM devices
Use PlatformIO to build and upload, i.e.:
pio run -e ESP32 -t upload && pio device monitor
# Supported envs: ESP32, ESP8266, TinyBLE, BLENano2, SipeedMAIXExample VM code
// === Count down from 1000 to 0
PUSH(1000); // Push 1000 to VM stack
LABEL(loop); // Store current code position to label "loop" <┐
DEC(); // Decrement stack top │
JNZ(loop); // Check stack top. If it's non-zero, jump to "loop" label ┘
HALT(); // Halt machineEmulating with QEMU
sudo apt install qemu-user-static
# ARM
sudo apt install gcc-arm-linux-gnueabihf libc6-dev-armhf-cross
arm-linux-gnueabihf-gcc -static main.c -I./src -Os -fPIC -o interp-arm
qemu-arm-static ./interp-arm
# AARCH64
sudo apt install gcc-aarch64-linux-gnu libc6-dev-arm64-cross
aarch64-linux-gnu-gcc -static main.c -I./src -Os -fPIC -o interp-aarch64
qemu-aarch64-static ./interp-aarch64
# MIPS(EL)
sudo apt-get install gcc-mipsel-linux-gnu libc6-dev-mipsel-cross
mipsel-linux-gnu-gcc -static main.c -I./src -Os -fPIC -o interp-mipsel
qemu-mipsel-static ./interp-mipsel
# MIPS
sudo apt-get install gcc-mips-linux-gnu libc6-dev-mips-cross
mips-linux-gnu-gcc -static main.c -I./src -Os -fPIC -o interp-mips
qemu-mips-static ./interp-mips
# RV64
sudo apt install gcc-riscv64-linux-gnu libc6-dev-riscv64-cross
riscv64-linux-gnu-gcc -static main.c -I./src -Os -fPIC -o interp-rv64
qemu-riscv64-static ./interp-rv64