From 6cd04a88fa3fc5941fcd3677355e1b75efe9c7a8 Mon Sep 17 00:00:00 2001 From: Frederic Konrad Date: Wed, 28 Apr 2021 21:15:19 +0200 Subject: [PATCH] hw/avr/atmega.c: use the avr51 cpu for atmega1280 According to the as documentation: (https://sourceware.org/binutils/docs-2.36/as/AVR-Options.html) "Instruction set avr51 is for the enhanced AVR core with exactly 128K program memory space (MCU types: atmega128, atmega128a, atmega1280, atmega1281, atmega1284, atmega1284p, atmega128rfa1, atmega128rfr2, atmega1284rfr2, at90can128, at90usb1286, at90usb1287, m3000)." But when compiling a program for atmega1280 or avr51 and trying to execute it: $ cat > test.S << EOF > loop: > rjmp loop > EOF $ avr-gcc -nostdlib -nostartfiles -mmcu=atmega1280 test.S -o test.elf $ qemu-system-avr -serial mon:stdio -nographic -no-reboot -M mega \ -bios test.elf qemu-system-avr: Current machine: Arduino Mega (ATmega1280) with 'avr6' CPU qemu-system-avr: ELF image 'test.elf' is for 'avr51' CPU So this fixes the atmega1280 class to use an avr51 CPU. Signed-off-by: Frederic Konrad Reviewed-by: Joaquin de Andres Message-Id: <1619637319-22299-1-git-send-email-frederic.konrad@adacore.com> Signed-off-by: Laurent Vivier --- hw/avr/atmega.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/avr/atmega.c b/hw/avr/atmega.c index 80b8a41cb5..0608e2d475 100644 --- a/hw/avr/atmega.c +++ b/hw/avr/atmega.c @@ -401,7 +401,7 @@ static void atmega1280_class_init(ObjectClass *oc, void *data) { AtmegaMcuClass *amc = ATMEGA_MCU_CLASS(oc); - amc->cpu_type = AVR_CPU_TYPE_NAME("avr6"); + amc->cpu_type = AVR_CPU_TYPE_NAME("avr51"); amc->flash_size = 128 * KiB; amc->eeprom_size = 4 * KiB; amc->sram_size = 8 * KiB;