diff options
Diffstat (limited to 'target/avr/cpu.c')
| -rw-r--r-- | target/avr/cpu.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/target/avr/cpu.c b/target/avr/cpu.c index 834c708..0b14b36 100644 --- a/target/avr/cpu.c +++ b/target/avr/cpu.c @@ -23,6 +23,7 @@ #include "qemu/qemu-print.h" #include "exec/exec-all.h" #include "exec/translation-block.h" +#include "exec/address-spaces.h" #include "cpu.h" #include "disas/dis-asm.h" #include "tcg/debug-assert.h" @@ -110,6 +111,8 @@ static void avr_cpu_disas_set_info(CPUState *cpu, disassemble_info *info) static void avr_cpu_realizefn(DeviceState *dev, Error **errp) { CPUState *cs = CPU(dev); + CPUAVRState *env = cpu_env(cs); + AVRCPU *cpu = env_archcpu(env); AVRCPUClass *mcc = AVR_CPU_GET_CLASS(dev); Error *local_err = NULL; @@ -122,6 +125,19 @@ static void avr_cpu_realizefn(DeviceState *dev, Error **errp) cpu_reset(cs); mcc->parent_realize(dev, errp); + + /* + * Two blocks in the low data space loop back into cpu registers. + */ + memory_region_init_io(&cpu->cpu_reg1, OBJECT(cpu), &avr_cpu_reg1, env, + "avr-cpu-reg1", 32); + memory_region_add_subregion(get_system_memory(), + OFFSET_DATA, &cpu->cpu_reg1); + + memory_region_init_io(&cpu->cpu_reg2, OBJECT(cpu), &avr_cpu_reg2, env, + "avr-cpu-reg2", 8); + memory_region_add_subregion(get_system_memory(), + OFFSET_DATA + 0x58, &cpu->cpu_reg2); } static void avr_cpu_set_int(void *opaque, int irq, int level) |