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/*
* RX gdb server stub
*
* Copyright (c) 2019 Yoshinori Sato
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2 or later, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "cpu.h"
#include "gdbstub/helpers.h"
int rx_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
{
CPURXState *env = cpu_env(cs);
switch (n) {
case 0 ... 15:
return gdb_get_regl(mem_buf, env->regs[n]);
case 16:
return gdb_get_regl(mem_buf, (env->psw_u) ? env->regs[0] : env->usp);
case 17:
return gdb_get_regl(mem_buf, (!env->psw_u) ? env->regs[0] : env->isp);
case 18:
return gdb_get_regl(mem_buf, rx_cpu_pack_psw(env));
case 19:
return gdb_get_regl(mem_buf, env->pc);
case 20:
return gdb_get_regl(mem_buf, env->intb);
case 21:
return gdb_get_regl(mem_buf, env->bpsw);
case 22:
return gdb_get_regl(mem_buf, env->bpc);
case 23:
return gdb_get_regl(mem_buf, env->fintv);
case 24:
return gdb_get_regl(mem_buf, env->fpsw);
case 25:
return 0;
}
return 0;
}
int rx_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
{
CPURXState *env = cpu_env(cs);
uint32_t psw;
switch (n) {
case 0 ... 15:
env->regs[n] = ldl_p(mem_buf);
if (n == 0) {
if (env->psw_u) {
env->usp = env->regs[0];
} else {
env->isp = env->regs[0];
}
}
break;
case 16:
env->usp = ldl_p(mem_buf);
if (env->psw_u) {
env->regs[0] = ldl_p(mem_buf);
}
break;
case 17:
env->isp = ldl_p(mem_buf);
if (!env->psw_u) {
env->regs[0] = ldl_p(mem_buf);
}
break;
case 18:
psw = ldl_p(mem_buf);
rx_cpu_unpack_psw(env, psw, 1);
break;
case 19:
env->pc = ldl_p(mem_buf);
break;
case 20:
env->intb = ldl_p(mem_buf);
break;
case 21:
env->bpsw = ldl_p(mem_buf);
break;
case 22:
env->bpc = ldl_p(mem_buf);
break;
case 23:
env->fintv = ldl_p(mem_buf);
break;
case 24:
env->fpsw = ldl_p(mem_buf);
break;
case 25:
return 8;
default:
return 0;
}
return 4;
}
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