Rework m68k cpu feature flags.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2865 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 19 insertions, 0 deletions

diff --git a/target-m68k/cpu.h b/target-m68k/cpu.h
index 93080cfe12..3a1a13888b 100644
--- a/target-m68k/cpu.h
+++ b/target-m68k/cpu.h
@@ -85,6 +85,8 @@ typedef struct CPUM68KState {
     uint32_t mbar;
     uint32_t rambar0;
 
+    uint32_t features;
+
     /* ??? remove this.  */
     uint32_t t1;
 
@@ -151,6 +153,23 @@ void m68k_set_irq_level(CPUM68KState *env, int level, uint8_t vector);
 
 void do_m68k_semihosting(CPUM68KState *env, int nr);
 
+enum m68k_features {
+    M68K_FEATURE_CF_ISA_A,
+    M68K_FEATURE_CF_ISA_B,
+    M68K_FEATURE_CF_ISA_C,
+    M68K_FEATURE_CF_FPU,
+    M68K_FEATURE_CF_MAC,
+    M68K_FEATURE_CF_EMAC,
+    M68K_FEATURE_EXT_FULL /* 68020+ full extension word.  */
+};
+
+static inline int m68k_feature(CPUM68KState *env, int feature)
+{
+    return (env->features & (1u << feature)) != 0;
+}
+
+void register_m68k_insns (CPUM68KState *env);
+
 #ifdef CONFIG_USER_ONLY
 /* Linux uses 8k pages.  */
 #define TARGET_PAGE_BITS 13