On 09/08/2016 03:31 PM, Michael Rolnik wrote:
+static void arc_gen_exec_delayslot(DisasCtxt *ctx)
+{
+ if (ctx->opt.limm == 0) {
+ uint32_t cpc = ctx->cpc;
+ uint32_t npc = ctx->npc;
+ uint32_t dpc = ctx->dpc;
+ uint32_t pcl = ctx->pcl;
+ options_t opt = ctx->opt;
+ int bstate = ctx->bstate;
+
+ ctx->cpc = ctx->npc;
+ ctx->pcl = ctx->cpc & 0xfffffffc;
+
+ ++ctx->ds;
+
+ /* TODO: check for illegal instruction sequence */
+
+ memset(&ctx->opt, 0, sizeof(ctx->opt));
+ arc_decode(ctx);
+
+ --ctx->ds;
+
+ ctx->cpc = cpc;
+ ctx->npc = npc;
+ ctx->dpc = dpc;
+ ctx->pcl = pcl;
+ ctx->opt = opt;
+ ctx->bstate = bstate;
+ }
+}
It might be easier to put the delay slot into a TB by itself. That will avoid
having to duplicate the decoding here.
r~
