add a hack for Decap Attack

[picodrive.git] / cpu / sh2 / sh2.c

diff --git a/cpu/sh2/sh2.c b/cpu/sh2/sh2.c
index 7b83cf2..403c4c7 100644 (file)
--- a/cpu/sh2/sh2.c
+++ b/cpu/sh2/sh2.c
@@ -17,10 +17,15 @@
 int sh2_init(SH2 *sh2, int is_slave, SH2 *other_sh2)
 {
        int ret = 0;
+       unsigned int mult_m68k_to_sh2 = sh2->mult_m68k_to_sh2;
+       unsigned int mult_sh2_to_m68k = sh2->mult_sh2_to_m68k;
 
-       memset(sh2, 0, offsetof(SH2, mult_m68k_to_sh2));
+       memset(sh2, 0, sizeof(*sh2));
        sh2->is_slave = is_slave;
        sh2->other_sh2 = other_sh2;
+       sh2->mult_m68k_to_sh2 = mult_m68k_to_sh2;
+       sh2->mult_sh2_to_m68k = mult_sh2_to_m68k;
+
        pdb_register_cpu(sh2, PDBCT_SH2, is_slave ? "ssh2" : "msh2");
 #ifdef DRC_SH2
        ret = sh2_drc_init(sh2);
@@ -232,7 +237,7 @@ static void dump_regs(SH2 *sh2)
        printf("%csh2 SR:      %03x  PR: %08x\n", csh2, sh2->sr, sh2->pr);
 }
 
-void do_sh2_cmp(SH2 *current)
+void REGPARM(1) do_sh2_cmp(SH2 *current)
 {
        static int current_slave;
        static u32 current_val;
@@ -246,6 +251,13 @@ void do_sh2_cmp(SH2 *current)
        int cycles;
        int i, ret;
 
+#if 0
+       sr = current->sr;
+       current->sr &= 0x3f3;
+       do_sh2_trace(current, (signed int)sr >> 12);
+       current->sr = sr;
+       return;
+#endif
        sh2ref[1].is_slave = 1;
 
        while (1) {