diff options
| author | Laurent Vivier <laurent@vivier.eu> | 2017-06-20 22:51:17 +0200 |
|---|---|---|
| committer | Laurent Vivier <laurent@vivier.eu> | 2017-06-21 22:09:45 +0200 |
| commit | f4a6ce5155aab2a7ed7b9032a72187b37b3bfffe (patch) | |
| tree | e6be3041576a0c23bb28d87275040a1c67e5a85a | |
| parent | 860b9ac779615fe9315cd58165652052ac165a92 (diff) | |
target-m68k: initialize FPU registers
on reset, set FP registers to NaN and control registers to 0
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170620205121.26515-3-laurent@vivier.eu>
| -rw-r--r-- | target/m68k/cpu.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c index f06892271f..f2e031fbe0 100644 --- a/target/m68k/cpu.c +++ b/target/m68k/cpu.c @@ -49,6 +49,8 @@ static void m68k_cpu_reset(CPUState *s) M68kCPU *cpu = M68K_CPU(s); M68kCPUClass *mcc = M68K_CPU_GET_CLASS(cpu); CPUM68KState *env = &cpu->env; + float64 nan = float64_default_nan(NULL); + int i; mcc->parent_reset(s); @@ -57,7 +59,12 @@ static void m68k_cpu_reset(CPUState *s) env->sr = 0x2700; #endif m68k_switch_sp(env); - /* ??? FP regs should be initialized to NaN. */ + for (i = 0; i < 8; i++) { + env->fregs[i] = nan; + } + env->fpcr = 0; + env->fpsr = 0; + cpu_m68k_set_ccr(env, 0); /* TODO: We should set PC from the interrupt vector. */ env->pc = 0; |