CRIS: Purify some of the flag evaluation helpers.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6227 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/target-cris/translate.c b/target-cris/translate.c
index 735e444..03ac7ea 100644
--- a/target-cris/translate.c
+++ b/target-cris/translate.c
@@ -565,74 +565,85 @@
static void cris_evaluate_flags(DisasContext *dc)
{
- if (!dc->flags_uptodate) {
- cris_flush_cc_state(dc);
+ if (dc->flags_uptodate)
+ return;
- switch (dc->cc_op)
+ cris_flush_cc_state(dc);
+
+ switch (dc->cc_op)
+ {
+ case CC_OP_MCP:
+ gen_helper_evaluate_flags_mcp(cpu_PR[PR_CCS],
+ cpu_PR[PR_CCS], cc_src,
+ cc_dest, cc_result);
+ break;
+ case CC_OP_MULS:
+ gen_helper_evaluate_flags_muls(cpu_PR[PR_CCS],
+ cpu_PR[PR_CCS], cc_result,
+ cpu_PR[PR_MOF]);
+ break;
+ case CC_OP_MULU:
+ gen_helper_evaluate_flags_mulu(cpu_PR[PR_CCS],
+ cpu_PR[PR_CCS], cc_result,
+ cpu_PR[PR_MOF]);
+ break;
+ case CC_OP_MOVE:
+ case CC_OP_AND:
+ case CC_OP_OR:
+ case CC_OP_XOR:
+ case CC_OP_ASR:
+ case CC_OP_LSR:
+ case CC_OP_LSL:
+ switch (dc->cc_size)
{
- case CC_OP_MCP:
- gen_helper_evaluate_flags_mcp();
- break;
- case CC_OP_MULS:
- gen_helper_evaluate_flags_muls();
- break;
- case CC_OP_MULU:
- gen_helper_evaluate_flags_mulu();
- break;
- case CC_OP_MOVE:
- case CC_OP_AND:
- case CC_OP_OR:
- case CC_OP_XOR:
- case CC_OP_ASR:
- case CC_OP_LSR:
- case CC_OP_LSL:
- switch (dc->cc_size)
- {
- case 4:
- gen_helper_evaluate_flags_move_4();
- break;
- case 2:
- gen_helper_evaluate_flags_move_2();
- break;
- default:
- gen_helper_evaluate_flags();
- break;
- }
- break;
- case CC_OP_FLAGS:
- /* live. */
- break;
- case CC_OP_SUB:
- case CC_OP_CMP:
- if (dc->cc_size == 4)
- gen_helper_evaluate_flags_sub_4();
- else
- gen_helper_evaluate_flags();
-
- break;
- default:
- switch (dc->cc_size)
- {
- case 4:
- gen_helper_evaluate_flags_alu_4();
- break;
- default:
- gen_helper_evaluate_flags();
- break;
- }
+ case 4:
+ gen_helper_evaluate_flags_move_4(cpu_PR[PR_CCS],
+ cpu_PR[PR_CCS], cc_result);
+ break;
+ case 2:
+ gen_helper_evaluate_flags_move_2(cpu_PR[PR_CCS],
+ cpu_PR[PR_CCS], cc_result);
+ break;
+ default:
+ gen_helper_evaluate_flags();
break;
}
- if (dc->flagx_known) {
- if (dc->flags_x)
- tcg_gen_ori_tl(cpu_PR[PR_CCS],
- cpu_PR[PR_CCS], X_FLAG);
- else
- tcg_gen_andi_tl(cpu_PR[PR_CCS],
- cpu_PR[PR_CCS], ~X_FLAG);
- }
+ break;
+ case CC_OP_FLAGS:
+ /* live. */
+ break;
+ case CC_OP_SUB:
+ case CC_OP_CMP:
+ if (dc->cc_size == 4)
+ gen_helper_evaluate_flags_sub_4(cpu_PR[PR_CCS],
+ cpu_PR[PR_CCS], cc_src, cc_dest, cc_result);
+ else
+ gen_helper_evaluate_flags();
- dc->flags_uptodate = 1;
+ break;
+ default:
+ switch (dc->cc_size)
+ {
+ case 4:
+ gen_helper_evaluate_flags_alu_4(cpu_PR[PR_CCS],
+ cpu_PR[PR_CCS], cc_src, cc_dest, cc_result);
+ break;
+ default:
+ gen_helper_evaluate_flags();
+ break;
+ }
+ break;
}
+
+ if (dc->flagx_known) {
+ if (dc->flags_x)
+ tcg_gen_ori_tl(cpu_PR[PR_CCS],
+ cpu_PR[PR_CCS], X_FLAG);
+ else
+ tcg_gen_andi_tl(cpu_PR[PR_CCS],
+ cpu_PR[PR_CCS], ~X_FLAG);
+ }
+ dc->flags_uptodate = 1;
}
static void cris_cc_mask(DisasContext *dc, unsigned int mask)
