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 <frederic.konrad@adacore.com>
---
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 44c6afebbb..e3ea5702f5 100644
--- a/hw/avr/atmega.c
+++ b/hw/avr/atmega.c
@@ -402,7 +402,7 @@ 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;