core: Increase MAX_IOs for atmega1280

[simavr] / simavr / sim / sim_avr.h

diff --git a/simavr/sim/sim_avr.h b/simavr/sim/sim_avr.h
index 199af29..6f6cc34 100644 (file)
--- a/simavr/sim/sim_avr.h
+++ b/simavr/sim/sim_avr.h
@@ -55,7 +55,7 @@ enum {
        R_SREG  = 32+0x3f,
 
        // maximum number of IO registers, on normal AVRs
-       MAX_IOs = 256,  // Bigger AVRs need more than 256-32 (mega1280)
+       MAX_IOs = 279,  // Bigger AVRs need more than 256-32 (mega1280)
 };
 
 #define AVR_DATA_TO_IO(v) ((v) - 32)
@@ -139,6 +139,13 @@ typedef struct avr_t {
        // not only to "cycles that runs" but also "cycles that might have run"
        // like, sleeping.
        avr_cycle_count_t       cycle;          // current cycle
+
+       /**
+        * Sleep requests are accumulated in sleep_usec until the minimum sleep value
+        * is reached, at which point sleep_usec is cleared and the sleep request
+        * is passed on to the operating system.
+        */
+       uint32_t sleep_usec;
        
        // called at init time
        void (*init)(struct avr_t * avr);