lxdream.org :: lxdream/src/aica/armcore.c r2:42349f6ea216

tree revision 2:42349f6ea216

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     2 #include "armcore.h"

     4 struct arm_registers armr;

     6 /* NB: The arm (one assumes) has a different memory map, but for the meantime... */

     8 #define MEM_READ_BYTE( addr ) mem_read_byte(addr)

     9 #define MEM_READ_WORD( addr ) mem_read_word(addr)

    10 #define MEM_READ_LONG( addr ) mem_read_long(addr)

    11 #define MEM_WRITE_BYTE( addr, val ) mem_write_byte(addr, val)

    12 #define MEM_WRITE_WORD( addr, val ) mem_write_word(addr, val)

    13 #define MEM_WRITE_LONG( addr, val ) mem_write_long(addr, val)

    15 #define PC armr.r[15];

    17 void arm_execute_instruction( void )

    18 {

    19   uint32_t ir = MEM_READ_LONG(PC);

    21 #define COND(ir) (ir>>28)

    24 }

    26 void arm_execute_thumb_instruction( void )

    27 {

    31 }