m68k/ColdFire system emulation.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2851 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/target-m68k/helper.c b/target-m68k/helper.c
index 6b8f18d..640fe4f 100644
--- a/target-m68k/helper.c
+++ b/target-m68k/helper.c
@@ -1,7 +1,7 @@
/*
* m68k op helpers
*
- * Copyright (c) 2006 CodeSourcery
+ * Copyright (c) 2006-2007 CodeSourcery
* Written by Paul Brook
*
* This library is free software; you can redistribute it and/or
@@ -147,3 +147,65 @@
}
return res;
}
+
+void helper_movec(CPUM68KState *env, int reg, uint32_t val)
+{
+ switch (reg) {
+ case 0x02: /* CACR */
+ /* Ignored. */
+ break;
+ case 0x801: /* VBR */
+ env->vbr = val;
+ break;
+ /* TODO: Implement control registers. */
+ default:
+ cpu_abort(env, "Unimplemented control register write 0x%x = 0x%x\n",
+ reg, val);
+ }
+}
+
+/* MMU */
+
+/* TODO: This will need fixing once the MMU is implemented. */
+target_phys_addr_t cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
+{
+ return addr;
+}
+
+#if defined(CONFIG_USER_ONLY)
+
+int cpu_m68k_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
+ int is_user, int is_softmmu)
+{
+ env->exception_index = EXCP_ACCESS;
+ env->mmu.ar = address;
+ return 1;
+}
+
+#else
+
+int cpu_m68k_handle_mmu_fault (CPUState *env, target_ulong address, int rw,
+ int is_user, int is_softmmu)
+{
+ int prot;
+
+ address &= TARGET_PAGE_MASK;
+ prot = PAGE_READ | PAGE_WRITE;
+ return tlb_set_page(env, address, address, prot, is_user, is_softmmu);
+}
+
+/* Notify CPU of a pending interrupt. Prioritization and vectoring should
+ be handled by the interrupt controller. Real hardware only requests
+ the vector when the interrupt is acknowledged by the CPU. For
+ simplicitly we calculate it when the interrupt is signalled. */
+void m68k_set_irq_level(CPUM68KState *env, int level, uint8_t vector)
+{
+ env->pending_level = level;
+ env->pending_vector = vector;
+ if (level)
+ cpu_interrupt(env, CPU_INTERRUPT_HARD);
+ else
+ cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
+}
+
+#endif
