Assembling Forth

The goal of this project is to create a forth implementation in Arm Thumb2 assembly for Arm Cortex Microcontrollers. Probably the STM32F103C8 on the "blue pill" board.

Running

All things can be done with make.

• make build (or just make): build the main.elf from the assembly source
• make emulate: start qemu and load the main.elf. Does not start execution but waits for gdb to connect.
• make debug: start gdb in tui mode and connect to emulation.

Notes:

• to stop the emulation, use ctrl-x and a

Done

• create basic assembly code and compile to binary
• run with qemu and debug with gdb
• script for building and running in qemu

To Do

• parse numbers: negative, >10
• execute forth words: DOT creates hardfault: how to get address?

Resources

• "8. Semihosting" in ARM® Compiler toolchain, Version 5.03, Developing Software for ARM Processors