| /* |
| * m68k gdb server stub |
| * |
| * Copyright (c) 2003-2005 Fabrice Bellard |
| * Copyright (c) 2013 SUSE LINUX Products GmbH |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| */ |
| #include "qemu/osdep.h" |
| #include "cpu.h" |
| #include "exec/gdbstub.h" |
| |
| int m68k_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n) |
| { |
| M68kCPU *cpu = M68K_CPU(cs); |
| CPUM68KState *env = &cpu->env; |
| |
| if (n < 8) { |
| /* D0-D7 */ |
| return gdb_get_reg32(mem_buf, env->dregs[n]); |
| } else if (n < 16) { |
| /* A0-A7 */ |
| return gdb_get_reg32(mem_buf, env->aregs[n - 8]); |
| } else { |
| switch (n) { |
| case 16: |
| /* SR is made of SR+CCR, CCR is many 1bit flags so uses helper */ |
| return gdb_get_reg32(mem_buf, env->sr | cpu_m68k_get_ccr(env)); |
| case 17: |
| return gdb_get_reg32(mem_buf, env->pc); |
| } |
| } |
| /* |
| * FP registers not included here because they vary between |
| * ColdFire and m68k. Use XML bits for these. |
| */ |
| return 0; |
| } |
| |
| int m68k_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) |
| { |
| M68kCPU *cpu = M68K_CPU(cs); |
| CPUM68KState *env = &cpu->env; |
| uint32_t tmp; |
| |
| tmp = ldl_p(mem_buf); |
| |
| if (n < 8) { |
| /* D0-D7 */ |
| env->dregs[n] = tmp; |
| } else if (n < 16) { |
| /* A0-A7 */ |
| env->aregs[n - 8] = tmp; |
| } else { |
| switch (n) { |
| case 16: |
| cpu_m68k_set_sr(env, tmp); |
| break; |
| case 17: |
| env->pc = tmp; |
| break; |
| default: |
| return 0; |
| } |
| } |
| return 4; |
| } |