Atmel CAVR-4 Manual De Usuario

CAVR-4

Part 2. Compiler reference

Data. The address range is 

0x0–0xFFFFFF

.

Holds static and global 

_ _huge

 variables that have been defined with non-zero initial 

values.

When the 

-y

 compiler option is used, 

_ _huge

 constant data is located in this segment.

HUGE_ID

Holds 

_ _huge

 variable initializers.

CODE

Flash. The address range is 

0x0–0x7FFFFF

.

Holds initial values for the variables located in the 

HUGE_I

 segment. These values are 

copied from 

HUGE_ID

 to 

HUGE_I

 during system initialization.

HUGE_N

Holds 

_ _no_init

 static and global 

_ _huge

 variables.

DATA

Data. The address range is 

0x0–0xFFFFFF

.

Holds static and global 

_ _huge

 variables that will not be initialized at system startup, 

for example variables that are to be placed in non-volatile memory. Variables defined 
using the 

_ _no_init

 keyword will be placed in this segment.