112 lines
2.8 KiB
C
112 lines
2.8 KiB
C
/*
|
|
* 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 "exec/gdbstub.h"
|
|
|
|
int rx_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
|
|
{
|
|
RXCPU *cpu = RX_CPU(cs);
|
|
CPURXState *env = &cpu->env;
|
|
|
|
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)
|
|
{
|
|
RXCPU *cpu = RX_CPU(cs);
|
|
CPURXState *env = &cpu->env;
|
|
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;
|
|
}
|