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/*
cf_regdefs.c - necessary coldfire definition for skyeye debugger
Copyright (C) 2003 Skyeye Develop Group
for help please send mail to <skyeye-developer@lists.sf.linuxforum.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* 12/16/2006 Michael.Kang <blackfin.kang@gmail.com>
*/
/*
* refer to GDB_SOURCE/gdb/regformats/reg-m68k.dat
32:d0 32:d1 32:d2 32:d3 32:d4 32:d5 32:d6 32:d7
32:a0 32:a1 32:a2 32:a3 32:a4 32:a5 32:fp 32:sp
32:ps 32:pc
96:fp0 96:fp1 96:fp2 96:fp3 96:fp4 96:fp5 96:fp6 96:fp7
32:fpcontrol 32:fpstatus 32:fpiaddr
*/
#include "skyeye.h"
#include "skyeye_defs.h"
#include "skyeye2gdb.h"
#include "skyeye_types.h"
#include "arch/coldfire/common/memory.h"
#define CF_NUM_REGS 29
extern struct _memory_core memory_core;
static int cf_register_raw_size(int x){
if(x >= 0 && x < 18)
return 4;
if(x >= 18 && x < 26)
return 12;
if(x >=26 && x < 29)
return 4;
}
static int cf_register_byte(int x){
if(x >= 0 && x < 18)
return (4 * x);
if(x >= 18 && x < 26)
return (4*18 + (x-18)*12);
if(x >= 26 && x < 29)
return (4 * 18 + 8 * 12 + (x - 26) * 4);
}
static int cf_store_register(int rn, unsigned char * memory){
//SKYEYE_DBG("in %s\n",__FUNCTION__);
WORD val = frommem(memory);
if(0 <= rn && rn < 8)
memory_core.d[rn] = val ;
else if(8 <= rn && rn < 16 )
memory_core.a[rn-8] = val ;
else if(16 == rn)
memory_core.sr = val;
else if(17 == rn)
memory_core.pc = val;
else if(rn >= 18 && rn < 29)
; /* Do nothing */
else
return -1;
return 0;
}
static int cf_fetch_register(int rn, unsigned char * memory){
WORD regval;
if(0 <= rn && rn < 8)
regval = memory_core.d[rn];
else if(8 <= rn && rn < 16 )
regval = memory_core.a[rn-8];
else if(16 == rn)
regval = memory_core.sr;
else if(17 == rn)
regval = memory_core.pc;
else if(rn >= 18 && rn < 29)
regval = 0;
else
return -1;
//SKYEYE_DBG("in %s, regval=%d,rn=%d\n",__FUNCTION__,regval,rn);
tomem (memory, regval);
return 0;
}
static register_defs_t cf_reg_defs;
/*
* register coldfire register type to the array
*/
void init_cf_register_defs(void){
cf_reg_defs.name = "coldfire";
cf_reg_defs.register_raw_size = cf_register_raw_size;
cf_reg_defs.register_bytes = 4 * 18 + 12 * 8 + 4 * 3;
cf_reg_defs.register_byte = cf_register_byte;
cf_reg_defs.num_regs = CF_NUM_REGS;
cf_reg_defs.max_register_raw_size = 12;
cf_reg_defs.store_register = cf_store_register;
cf_reg_defs.fetch_register = cf_fetch_register;
cf_reg_defs.endian_flag = HIGH;
register_reg_type(&cf_reg_defs);
}
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