The uart tx register in the versatilepb qemu target is at address 0x101f1000. Instead if you do this: qemu-system-arm -M versatilepb -m 128M -kernel hello_world.binĪnd then ctrl-alt-3 (not F3 but 3) will switch to the serial consoleĪnd you can see the output, and can close out of qemu by closing the console window. Run with qemu-system-arm -M versatilepb -m 128M -nographic -kernel hello_world.binīut I dont know how to get out of the console $(CROSS_COMPILE)-objcopy hello_world.elf -O binary hello_world.bin $(CROSS_COMPILE)-objdump -D hello_world.elf > hello_world.list $(CROSS_COMPILE)-ld startup.o -T memmap -o hello_world.elf

$(CROSS_COMPILE)-as $(AOPS) startup.s -o startup.o Makefile CROSS_COMPILE ?= arm-none-linux-gnueabiĬOPS = -Wall -Werror -O2 -nostdlib -nostartfiles -ffreestanding strings and integers and such are a language-less problem (same solution can apply to any programming language, asm, c, python, etc solve the problem THEN apply the language to the problem). If you are not interested in an operating system but just bare metal, here is one of many ways to get serial output on the qemu console. asm does not imply low level access and is definitely not required (and rarely used) for low level stuff. asm and low level are two different things.

and it is not a language question (asm) but an operating system question. Are you trying to do something bare metal on an emulated arm system? Or are you trying to run an arm linux operating system and within the operating system create a program in assembly that runs on the operating system which is running on qemu? if it is the latter it has nothing to do with qemu, it is an operating system question not a qemu question. Obviously you have not searched the whole internet.because, if nothing else, the qemu source code contains all the answers to your questions.

Qemu arm tutorial