From 0fc68742a3d96da5dbe5f702b60a899991c79f0f Mon Sep 17 00:00:00 2001
From: fridtjof <fridtjof@das-labor.org>
Date: Wed, 13 Aug 2025 01:39:35 +0200
Subject: [PATCH] wip! cpu: implement some ops that previously crashed because
 they're not there

---
 target/cr16c/cpu.c | 15 ++++++++++++++-
 target/cr16c/cpu.h |  3 +++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/target/cr16c/cpu.c b/target/cr16c/cpu.c
index 3f882573a6..ee2bce1282 100644
--- a/target/cr16c/cpu.c
+++ b/target/cr16c/cpu.c
@@ -118,6 +118,12 @@ static void cr16c_cpu_set_pc(CPUState *cs, vaddr value)
     cpu->env.pc = value;
 }
 
+static vaddr cr16c_cpu_get_pc(CPUState *cs)
+{
+    CR16CCPU *cpu = CR16C_CPU(cs);
+    return cpu->env.pc;
+}
+
 static int cr16c_cpu_mmu_index(CPUState *cs, bool ifetch)
 {
     return 0;
@@ -153,6 +159,12 @@ bool cr16c_cpu_tlb_fill(CPUState *cs, vaddr addr, int size,
     return true;
 }
 
+void cr16c_restore_state_to_opc(CPUState *cpu, const TranslationBlock *tb,
+                                const uint64_t *data) {
+    qemu_printf("idk what im doing!!!!!!\n");
+    // TODO figure out what this is supposed to do and implement it
+}
+
 
 #include "hw/core/sysemu-cpu-ops.h"
 
@@ -168,12 +180,12 @@ static const struct TCGCPUOps cr16c_tcg_ops = {
     .cpu_exec_reset = cpu_reset,
     .translate_code = cr16c_translate_code,
     .get_tb_cpu_state = cr16c_cpu_get_tb_cpu_state,
+    .restore_state_to_opc = cr16c_restore_state_to_opc,
     .tlb_fill = cr16c_cpu_tlb_fill,
     .pointer_wrap = cpu_pointer_wrap_notreached,
     .cpu_exec_halt = cr16c_cpu_has_work,
 };
 
-
 static void cr16c_cpu_class_init(ObjectClass *oc, const void *data)
 {
     CR16CCPUClass *acc = CR16C_CPU_CLASS(oc);
@@ -188,6 +200,7 @@ static void cr16c_cpu_class_init(ObjectClass *oc, const void *data)
 
     cc->dump_state = cr16c_cpu_dump_state;
     cc->set_pc = cr16c_cpu_set_pc;
+    cc->get_pc = cr16c_cpu_get_pc;
     cc->sysemu_ops = &cr16c_sysemu_ops;
     cc->disas_set_info = cr16c_cpu_disas_set_info;
     cc->tcg_ops = &cr16c_tcg_ops;
diff --git a/target/cr16c/cpu.h b/target/cr16c/cpu.h
index f6f54aee57..b43969e866 100644
--- a/target/cr16c/cpu.h
+++ b/target/cr16c/cpu.h
@@ -60,4 +60,7 @@ void cr16c_cpu_synchronize_from_tb(CPUState *cs, const TranslationBlock *tb);
 void cr16c_translate_code(CPUState *cs, TranslationBlock *tb,
                             int *max_insns, vaddr pc, void *host_pc);
 
+void cr16c_restore_state_to_opc(CPUState *cpu, const TranslationBlock *tb,
+                                const uint64_t *data);
+
 #endif // !QEMU_CR16C_CPU_H