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[Qemu-devel] [5448] CRIS: Partial EXS reg support and fixes for SPC.
From: |
Edgar E. Iglesias |
Subject: |
[Qemu-devel] [5448] CRIS: Partial EXS reg support and fixes for SPC. |
Date: |
Wed, 08 Oct 2008 14:22:18 +0000 |
Revision: 5448
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5448
Author: edgar_igl
Date: 2008-10-08 14:22:17 +0000 (Wed, 08 Oct 2008)
Log Message:
-----------
CRIS: Partial EXS reg support and fixes for SPC.
* Add partial support for the EXS (exception status) register.
* Update SPC after each singlestep exception.
* Remove special treatment of break 8.
Modified Paths:
--------------
trunk/target-cris/helper.c
trunk/target-cris/translate.c
Modified: trunk/target-cris/helper.c
===================================================================
--- trunk/target-cris/helper.c 2008-10-08 08:28:16 UTC (rev 5447)
+++ trunk/target-cris/helper.c 2008-10-08 14:22:17 UTC (rev 5448)
@@ -143,6 +143,9 @@
break;
}
+ /* Fill in the IDX field. */
+ env->pregs[PR_EXS] = (ex_vec & 0xff) << 8;
+
if (env->dslot) {
D(fprintf(logfile, "excp isr=%x PC=%x ds=%d SP=%x"
" ERP=%x pid=%x ccs=%x cc=%d %x\n",
Modified: trunk/target-cris/translate.c
===================================================================
--- trunk/target-cris/translate.c 2008-10-08 08:28:16 UTC (rev 5447)
+++ trunk/target-cris/translate.c 2008-10-08 14:22:17 UTC (rev 5448)
@@ -196,10 +196,6 @@
tcg_gen_mov_tl(tn, tcg_const_tl(0));
else if (r == PR_VR)
tcg_gen_mov_tl(tn, tcg_const_tl(32));
- else if (r == PR_EXS) {
- printf("read from EXS!\n");
- tcg_gen_mov_tl(tn, cpu_PR[r]);
- }
else if (r == PR_EDA) {
printf("read from EDA!\n");
tcg_gen_mov_tl(tn, cpu_PR[r]);
@@ -2811,12 +2807,7 @@
DIS(fprintf(logfile, "break %d\n", dc->op1));
cris_evaluate_flags (dc);
/* break. */
- if (dc->op1 == 8) {
- /* TODO: Find out whats special with brk8. */
- tcg_gen_movi_tl(env_pc, dc->pc);
- }
- else
- tcg_gen_movi_tl(env_pc, dc->pc + 2);
+ tcg_gen_movi_tl(env_pc, dc->pc + 2);
/* Breaks start at 16 in the exception vector. */
t_gen_mov_env_TN(trap_vector,
@@ -3005,6 +2996,7 @@
cris_evaluate_flags (dc);
t_gen_mov_env_TN(trap_vector, tcg_const_tl(3));
tcg_gen_movi_tl(env_pc, dc->pc + insn_len);
+ tcg_gen_movi_tl(cpu_PR[PR_SPC], dc->pc + insn_len);
t_gen_raise_exception(EXCP_BREAK);
gen_set_label(l1);
}
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