diff options
Diffstat (limited to 'target')
| -rw-r--r-- | target/m68k/helper.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/target/m68k/helper.c b/target/m68k/helper.c index 8bfc8814a0..f2de6b5097 100644 --- a/target/m68k/helper.c +++ b/target/m68k/helper.c @@ -102,6 +102,48 @@ static int cf_fpu_gdb_set_reg(CPUM68KState *env, uint8_t *mem_buf, int n) return 0; } +static int m68k_fpu_gdb_get_reg(CPUM68KState *env, uint8_t *mem_buf, int n) +{ + if (n < 8) { + stw_be_p(mem_buf, env->fregs[n].l.upper); + memset(mem_buf + 2, 0, 2); + stq_be_p(mem_buf + 4, env->fregs[n].l.lower); + return 12; + } + switch (n) { + case 8: /* fpcontrol */ + stl_be_p(mem_buf, env->fpcr); + return 4; + case 9: /* fpstatus */ + stl_be_p(mem_buf, env->fpsr); + return 4; + case 10: /* fpiar, not implemented */ + memset(mem_buf, 0, 4); + return 4; + } + return 0; +} + +static int m68k_fpu_gdb_set_reg(CPUM68KState *env, uint8_t *mem_buf, int n) +{ + if (n < 8) { + env->fregs[n].l.upper = lduw_be_p(mem_buf); + env->fregs[n].l.lower = ldq_be_p(mem_buf + 4); + return 12; + } + switch (n) { + case 8: /* fpcontrol */ + env->fpcr = ldl_p(mem_buf); + return 4; + case 9: /* fpstatus */ + env->fpsr = ldl_p(mem_buf); + return 4; + case 10: /* fpiar, not implemented */ + return 4; + } + return 0; +} + M68kCPU *cpu_m68k_init(const char *cpu_model) { M68kCPU *cpu; @@ -130,6 +172,9 @@ void m68k_cpu_init_gdb(M68kCPU *cpu) if (m68k_feature(env, M68K_FEATURE_CF_FPU)) { gdb_register_coprocessor(cs, cf_fpu_gdb_get_reg, cf_fpu_gdb_set_reg, 11, "cf-fp.xml", 18); + } else if (m68k_feature(env, M68K_FEATURE_FPU)) { + gdb_register_coprocessor(cs, m68k_fpu_gdb_get_reg, + m68k_fpu_gdb_set_reg, 11, "m68k-fp.xml", 18); } /* TODO: Add [E]MAC registers. */ } |