diff options
Diffstat (limited to '05/constants.b')
| -rw-r--r-- | 05/constants.b | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/05/constants.b b/05/constants.b index 68e3777..b719375 100644 --- a/05/constants.b +++ b/05/constants.b @@ -1,10 +1,13 @@ ; this is the format of the executables we produce: -; elf header 4MB addresses 0x000000-0x400000 (no, it won't actually take up that much space) -; code 4MB addresses 0x400000-0x7fffff +; elf header 2MB addresses 0x000000-0x200000 (no, it won't actually take up that much space) +; entry point 2MB addresses 0x200000-0x3fffff this is where we put the code to call main(), etc. (again, it won't actually take up that much space) +; code (functions) 4MB addresses 0x400000-0x7fffff ; read-only data 4MB addresses 0x800000-0xbfffff ; read-write data 4MB addresses 0xc00000-0xffffff ; note that file offsets and runtime addresses are the same. ; you should be able to change these constants without breaking anything: +#define ENTRY_ADDR 0x200000 +#define FUNCTIONS_ADDR 0x400000 #define RODATA_ADDR 0x800000 #define RWDATA_ADDR 0xc00000 #define RWDATA_END 0x1000000 |