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- /* Real-mode interface: C portions.
- *
- * Initial version by Michael Brown <mbrown@fensystems.co.uk>, January 2004.
- */
-
- #include "realmode.h"
-
- /*
- * Copy data to/from base memory.
- *
- */
-
- #ifdef KEEP_IT_REAL
-
- void memcpy_to_real ( segoff_t dest, void *src, size_t n ) {
-
- }
-
- void memcpy_from_real ( void *dest, segoff_t src, size_t n ) {
-
- }
-
- #endif /* KEEP_IT_REAL */
-
-
- #define RM_STACK_SIZE ( 0x1000 )
-
- /* gcc won't let us use extended asm outside a function (compiler
- * bug), ao we have to put these asm statements inside a dummy
- * function.
- */
- static void work_around_gcc_bug ( void ) __attribute__ ((used));
- static void work_around_gcc_bug ( void ) {
- /* Export _real_mode_stack_size as absolute linker symbol */
- __asm__ ( ".globl real_mode_stack_size" );
- __asm__ ( ".equ real_mode_stack_size, %c0" : : "i" (RM_STACK_SIZE) );
- }
-
- char *real_mode_stack;
- int lock_real_mode_stack;
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