See ISA, 4.7.1.3 for details.
Window check is inserted before commands that push "used register
watermark" beyond its current level. Used register watermark is reset on
instructions that change WINDOW_BASE/WINDOW_START SRs.
Signed-off-by: Max Filippov <jcmvb...@gmail.com>
---
target-xtensa/translate.c | 105 +++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 105 insertions(+), 0 deletions(-)
diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c
index 450c302..9fcd2aa 100644
--- a/target-xtensa/translate.c
+++ b/target-xtensa/translate.c
@@ -58,6 +58,7 @@ typedef struct DisasContext {
TCGv_i32 sar_m32;
uint32_t ccount_delta;
+ unsigned used_window;
} DisasContext;
static TCGv_ptr cpu_env;
@@ -206,6 +207,11 @@ static void gen_check_interrupts(DisasContext *dc)
gen_helper_check_interrupts();
}
+static void reset_used_window(DisasContext *dc)
+{
+ dc->used_window = 0;
+}
+
static void gen_exception(DisasContext *dc, int excp)
{
TCGv_i32 tmp = tcg_const_i32(excp);
@@ -392,11 +398,19 @@ static void gen_wsr_litbase(DisasContext *dc, uint32_t
sr, TCGv_i32 s)
static void gen_wsr_windowbase(DisasContext *dc, uint32_t sr, TCGv_i32 v)
{
gen_helper_wsr_windowbase(v);
+ reset_used_window(dc);
+}
+
+static void gen_wsr_windowstart(DisasContext *dc, uint32_t sr, TCGv_i32 v)
+{
+ tcg_gen_mov_i32(cpu_SR[sr], v);
+ reset_used_window(dc);
}
static void gen_wsr_ps(DisasContext *dc, uint32_t sr, TCGv_i32 v)
{
tcg_gen_mov_i32(cpu_SR[sr], v);
+ reset_used_window(dc);
gen_check_interrupts(dc);
/* This can change tb->flags, so exit tb */
gen_jumpi_check_loop_end(dc, -1);
@@ -421,6 +435,7 @@ static void gen_wsr(DisasContext *dc, uint32_t sr, TCGv_i32
s)
[SAR] = gen_wsr_sar,
[LITBASE] = gen_wsr_litbase,
[WINDOW_BASE] = gen_wsr_windowbase,
+ [WINDOW_START] = gen_wsr_windowstart,
[PS] = gen_wsr_ps,
[CCOMPARE] = gen_wsr_ccompare,
[CCOMPARE + 1] = gen_wsr_ccompare,
@@ -462,6 +477,32 @@ static void gen_waiti(DisasContext *dc, uint32_t imm4)
tcg_temp_free(intlevel);
}
+static void gen_window_check1(DisasContext *dc, unsigned r1)
+{
+ if (option_enabled(dc, XTENSA_OPTION_WINDOWED_REGISTER) &&
+ r1 / 4 > dc->used_window) {
+ TCGv_i32 pc = tcg_const_i32(dc->pc);
+ TCGv_i32 w = tcg_const_i32(r1 / 4);
+
+ gen_advance_ccount(dc);
+ gen_helper_window_check(pc, w);
+
+ tcg_temp_free(w);
+ tcg_temp_free(pc);
+ }
+}
+
+static void gen_window_check2(DisasContext *dc, unsigned r1, unsigned r2)
+{
+ gen_window_check1(dc, r1 > r2 ? r1 : r2);
+}
+
+static void gen_window_check3(DisasContext *dc, unsigned r1, unsigned r2,
+ unsigned r3)
+{
+ gen_window_check2(dc, r1, r2 > r3 ? r2 : r3);
+}
+
static void disas_xtensa_insn(DisasContext *dc)
{
#define HAS_OPTION(opt) do { \
@@ -591,6 +632,7 @@ static void disas_xtensa_insn(DisasContext *dc)
switch (CALLX_N) {
case 0: /*RET*/
case 2: /*JX*/
+ gen_window_check1(dc, CALLX_S);
gen_jump(dc, cpu_R[CALLX_S]);
break;
@@ -612,6 +654,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 3: /*CALLX*/
+ gen_window_check2(dc, CALLX_S, CALLX_N << 2);
switch (CALLX_N) {
case 0: /*CALLX0*/
{
@@ -642,6 +685,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 1: /*MOVSPw*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ gen_window_check2(dc, RRR_T, RRR_S);
{
TCGv_i32 pc = tcg_const_i32(dc->pc);
gen_advance_ccount(dc);
@@ -785,6 +829,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 6: /*RSILx*/
HAS_OPTION(XTENSA_OPTION_INTERRUPT);
gen_check_privilege(dc);
+ gen_window_check1(dc, RRR_T);
tcg_gen_mov_i32(cpu_R[RRR_T], cpu_SR[PS]);
tcg_gen_ori_i32(cpu_SR[PS], cpu_SR[PS], RRR_S);
tcg_gen_andi_i32(cpu_SR[PS], cpu_SR[PS],
@@ -826,28 +871,34 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 1: /*AND*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
tcg_gen_and_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
break;
case 2: /*OR*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
tcg_gen_or_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
break;
case 3: /*XOR*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
tcg_gen_xor_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
break;
case 4: /*ST1*/
switch (RRR_R) {
case 0: /*SSR*/
+ gen_window_check1(dc, RRR_S);
gen_right_shift_sar(dc, cpu_R[RRR_S]);
break;
case 1: /*SSL*/
+ gen_window_check1(dc, RRR_S);
gen_left_shift_sar(dc, cpu_R[RRR_S]);
break;
case 2: /*SSA8L*/
+ gen_window_check1(dc, RRR_S);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
@@ -857,6 +908,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 3: /*SSA8B*/
+ gen_window_check1(dc, RRR_S);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_shli_i32(tmp, cpu_R[RRR_S], 3);
@@ -890,16 +942,19 @@ static void disas_xtensa_insn(DisasContext *dc)
RRR_T | ((RRR_T & 8) ? 0xfffffff0 : 0));
gen_helper_rotw(tmp);
tcg_temp_free(tmp);
+ reset_used_window(dc);
}
break;
case 14: /*NSAu*/
HAS_OPTION(XTENSA_OPTION_MISC_OP);
+ gen_window_check2(dc, RRR_S, RRR_T);
gen_helper_nsa(cpu_R[RRR_T], cpu_R[RRR_S]);
break;
case 15: /*NSAUu*/
HAS_OPTION(XTENSA_OPTION_MISC_OP);
+ gen_window_check2(dc, RRR_S, RRR_T);
gen_helper_nsau(cpu_R[RRR_T], cpu_R[RRR_S]);
break;
@@ -914,6 +969,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 6: /*RT0*/
+ gen_window_check2(dc, RRR_R, RRR_T);
switch (RRR_S) {
case 0: /*NEG*/
tcg_gen_neg_i32(cpu_R[RRR_R], cpu_R[RRR_T]);
@@ -941,12 +997,14 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 8: /*ADD*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
tcg_gen_add_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
break;
case 9: /*ADD**/
case 10:
case 11:
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_shli_i32(tmp, cpu_R[RRR_S], _OP2 - 8);
@@ -956,12 +1014,14 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 12: /*SUB*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
tcg_gen_sub_i32(cpu_R[RRR_R], cpu_R[RRR_S], cpu_R[RRR_T]);
break;
case 13: /*SUB**/
case 14:
case 15:
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_shli_i32(tmp, cpu_R[RRR_S], _OP2 - 12);
@@ -976,17 +1036,20 @@ static void disas_xtensa_insn(DisasContext *dc)
switch (_OP2) {
case 0: /*SLLI*/
case 1:
+ gen_window_check2(dc, RRR_R, RRR_S);
tcg_gen_shli_i32(cpu_R[RRR_R], cpu_R[RRR_S],
32 - (RRR_T | ((_OP2 & 1) << 4)));
break;
case 2: /*SRAI*/
case 3:
+ gen_window_check2(dc, RRR_R, RRR_T);
tcg_gen_sari_i32(cpu_R[RRR_R], cpu_R[RRR_T],
RRR_S | ((_OP2 & 1) << 4));
break;
case 4: /*SRLI*/
+ gen_window_check2(dc, RRR_R, RRR_T);
tcg_gen_shri_i32(cpu_R[RRR_R], cpu_R[RRR_T], RRR_S);
break;
@@ -996,6 +1059,7 @@ static void disas_xtensa_insn(DisasContext *dc)
if (RSR_SR >= 64) {
gen_check_privilege(dc);
}
+ gen_window_check1(dc, RRR_T);
tcg_gen_mov_i32(tmp, cpu_R[RRR_T]);
gen_rsr(dc, cpu_R[RRR_T], RSR_SR);
gen_wsr(dc, RSR_SR, tmp);
@@ -1022,6 +1086,7 @@ static void disas_xtensa_insn(DisasContext *dc)
#define gen_shift(cmd) gen_shift_reg(cmd, cpu_SR[SAR])
case 8: /*SRC*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
TCGv_i64 v = tcg_temp_new_i64();
tcg_gen_concat_i32_i64(v, cpu_R[RRR_T], cpu_R[RRR_S]);
@@ -1030,6 +1095,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 9: /*SRL*/
+ gen_window_check2(dc, RRR_R, RRR_T);
if (dc->sar_5bit) {
tcg_gen_shr_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);
} else {
@@ -1040,6 +1106,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 10: /*SLL*/
+ gen_window_check2(dc, RRR_R, RRR_S);
if (dc->sar_m32_5bit) {
tcg_gen_shl_i32(cpu_R[RRR_R], cpu_R[RRR_S], dc->sar_m32);
} else {
@@ -1054,6 +1121,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 11: /*SRA*/
+ gen_window_check2(dc, RRR_R, RRR_T);
if (dc->sar_5bit) {
tcg_gen_sar_i32(cpu_R[RRR_R], cpu_R[RRR_T], cpu_SR[SAR]);
} else {
@@ -1067,6 +1135,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 12: /*MUL16U*/
HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
TCGv_i32 v1 = tcg_temp_new_i32();
TCGv_i32 v2 = tcg_temp_new_i32();
@@ -1080,6 +1149,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 13: /*MUL16S*/
HAS_OPTION(XTENSA_OPTION_16_BIT_IMUL);
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
TCGv_i32 v1 = tcg_temp_new_i32();
TCGv_i32 v2 = tcg_temp_new_i32();
@@ -1098,6 +1168,8 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 2: /*RST2*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
+
if (_OP2 >= 12) {
HAS_OPTION(XTENSA_OPTION_32_BIT_IDIV);
int label = gen_new_label();
@@ -1165,6 +1237,7 @@ static void disas_xtensa_insn(DisasContext *dc)
if (RSR_SR >= 64) {
gen_check_privilege(dc);
}
+ gen_window_check1(dc, RRR_T);
gen_rsr(dc, cpu_R[RRR_T], RSR_SR);
if (!sregnames[RSR_SR]) {
TBD();
@@ -1175,6 +1248,7 @@ static void disas_xtensa_insn(DisasContext *dc)
if (RSR_SR >= 64) {
gen_check_privilege(dc);
}
+ gen_window_check1(dc, RRR_T);
gen_wsr(dc, RSR_SR, cpu_R[RRR_T]);
if (!sregnames[RSR_SR]) {
TBD();
@@ -1183,6 +1257,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 2: /*SEXTu*/
HAS_OPTION(XTENSA_OPTION_MISC_OP);
+ gen_window_check2(dc, RRR_R, RRR_S);
{
int shift = 24 - RRR_T;
@@ -1201,6 +1276,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 3: /*CLAMPSu*/
HAS_OPTION(XTENSA_OPTION_MISC_OP);
+ gen_window_check2(dc, RRR_R, RRR_S);
{
TCGv_i32 tmp1 = tcg_temp_new_i32();
TCGv_i32 tmp2 = tcg_temp_new_i32();
@@ -1228,6 +1304,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 6: /*MINUu*/
case 7: /*MAXUu*/
HAS_OPTION(XTENSA_OPTION_MISC_OP);
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
static const TCGCond cond[] = {
TCG_COND_LE,
@@ -1255,6 +1332,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 9: /*MOVNEZ*/
case 10: /*MOVLTZ*/
case 11: /*MOVGEZ*/
+ gen_window_check3(dc, RRR_R, RRR_S, RRR_T);
{
static const TCGCond cond[] = {
TCG_COND_NE,
@@ -1280,6 +1358,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 14: /*RUR*/
+ gen_window_check1(dc, RRR_R);
{
int st = (RRR_S << 4) + RRR_T;
if (uregnames[st]) {
@@ -1292,6 +1371,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 15: /*WUR*/
+ gen_window_check1(dc, RRR_T);
{
if (uregnames[RSR_SR]) {
tcg_gen_mov_i32(cpu_UR[RSR_SR], cpu_R[RRR_T]);
@@ -1307,6 +1387,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 4: /*EXTUI*/
case 5:
+ gen_window_check2(dc, RRR_R, RRR_T);
{
int shiftimm = RRR_S | (_OP1 << 4);
int maskimm = (1 << (_OP2 + 1)) - 1;
@@ -1332,6 +1413,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 9: /*LSC4*/
+ gen_window_check2(dc, RRR_S, RRR_T);
switch (_OP2) {
case 0: /*L32E*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
@@ -1382,6 +1464,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 1: /*L32R*/
+ gen_window_check1(dc, RRR_T);
{
TCGv_i32 tmp = tcg_const_i32(
((dc->tb->flags & XTENSA_TBFLAG_LITBASE) ?
@@ -1397,6 +1480,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 2: /*LSAI*/
#define gen_load_store(type, shift) do { \
TCGv_i32 addr = tcg_temp_local_new_i32(); \
+ gen_window_check2(dc, RRI8_S, RRI8_T); \
tcg_gen_addi_i32(addr, cpu_R[RRI8_S], RRI8_IMM8 << shift); \
if (shift) { \
gen_load_store_alignment(dc, shift, addr); \
@@ -1532,6 +1616,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 10: /*MOVI*/
+ gen_window_check1(dc, RRI8_T);
tcg_gen_movi_i32(cpu_R[RRI8_T],
RRI8_IMM8 | (RRI8_S << 8) |
((RRI8_S & 0x8) ? 0xfffff000 : 0));
@@ -1543,15 +1628,18 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 12: /*ADDI*/
+ gen_window_check2(dc, RRI8_S, RRI8_T);
tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE);
break;
case 13: /*ADDMI*/
+ gen_window_check2(dc, RRI8_S, RRI8_T);
tcg_gen_addi_i32(cpu_R[RRI8_T], cpu_R[RRI8_S], RRI8_IMM8_SE << 8);
break;
case 14: /*S32C1Iy*/
HAS_OPTION(XTENSA_OPTION_MP_SYNCHRO);
+ gen_window_check2(dc, RRI8_S, RRI8_T);
{
int label = gen_new_label();
TCGv_i32 tmp = tcg_temp_local_new_i32();
@@ -1604,6 +1692,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 2: /*CALL8w*/
case 3: /*CALL12w*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
+ gen_window_check1(dc, CALL_N << 2);
gen_callwi(dc, CALL_N,
(dc->pc & ~3) + (CALL_OFFSET_SE << 2) + 4, 0);
break;
@@ -1617,6 +1706,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 1: /*BZ*/
+ gen_window_check1(dc, BRI12_S);
{
static const TCGCond cond[] = {
TCG_COND_EQ, /*BEQZ*/
@@ -1631,6 +1721,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 2: /*BI0*/
+ gen_window_check1(dc, BRI8_S);
{
static const TCGCond cond[] = {
TCG_COND_EQ, /*BEQI*/
@@ -1657,6 +1748,7 @@ static void disas_xtensa_insn(DisasContext *dc)
tcg_temp_free(imm);
tcg_temp_free(s);
tcg_temp_free(pc);
+ reset_used_window(dc);
}
break;
@@ -1676,6 +1768,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 9: /*LOOPNEZ*/
case 10: /*LOOPGTZ*/
HAS_OPTION(XTENSA_OPTION_LOOP);
+ gen_window_check1(dc, RRI8_S);
{
uint32_t lend = dc->pc + RRI8_IMM8 + 4;
TCGv_i32 tmp = tcg_const_i32(lend);
@@ -1707,6 +1800,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 2: /*BLTUI*/
case 3: /*BGEUI*/
+ gen_window_check1(dc, BRI8_S);
gen_brcondi(dc, BRI8_M == 2 ? TCG_COND_LTU : TCG_COND_GEU,
cpu_R[BRI8_S], B4CONSTU[BRI8_R], 4 + BRI8_IMM8_SE);
break;
@@ -1722,6 +1816,7 @@ static void disas_xtensa_insn(DisasContext *dc)
switch (RRI8_R & 7) {
case 0: /*BNONE*/ /*BANY*/
+ gen_window_check2(dc, RRI8_S, RRI8_T);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]);
@@ -1733,6 +1828,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 1: /*BEQ*/ /*BNE*/
case 2: /*BLT*/ /*BGE*/
case 3: /*BLTU*/ /*BGEU*/
+ gen_window_check2(dc, RRI8_S, RRI8_T);
{
static const TCGCond cond[] = {
[1] = TCG_COND_EQ,
@@ -1748,6 +1844,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 4: /*BALL*/ /*BNALL*/
+ gen_window_check2(dc, RRI8_S, RRI8_T);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_and_i32(tmp, cpu_R[RRI8_S], cpu_R[RRI8_T]);
@@ -1758,6 +1855,7 @@ static void disas_xtensa_insn(DisasContext *dc)
break;
case 5: /*BBC*/ /*BBS*/
+ gen_window_check2(dc, RRI8_S, RRI8_T);
{
TCGv_i32 bit = tcg_const_i32(1);
TCGv_i32 tmp = tcg_temp_new_i32();
@@ -1772,6 +1870,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 6: /*BBCI*/ /*BBSI*/
case 7:
+ gen_window_check1(dc, RRI8_S);
{
TCGv_i32 tmp = tcg_temp_new_i32();
tcg_gen_andi_i32(tmp, cpu_R[RRI8_S],
@@ -1787,6 +1886,7 @@ static void disas_xtensa_insn(DisasContext *dc)
#define gen_narrow_load_store(type) do { \
TCGv_i32 addr = tcg_temp_local_new_i32(); \
+ gen_window_check2(dc, RRRN_S, RRRN_T); \
tcg_gen_addi_i32(addr, cpu_R[RRRN_S], RRRN_R << 2); \
gen_load_store_alignment(dc, 2, addr); \
tcg_gen_qemu_##type(cpu_R[RRRN_T], addr, 0); \
@@ -1803,14 +1903,17 @@ static void disas_xtensa_insn(DisasContext *dc)
#undef gen_narrow_load_store
case 10: /*ADD.Nn*/
+ gen_window_check3(dc, RRRN_R, RRRN_S, RRRN_T);
tcg_gen_add_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], cpu_R[RRRN_T]);
break;
case 11: /*ADDI.Nn*/
+ gen_window_check2(dc, RRRN_R, RRRN_S);
tcg_gen_addi_i32(cpu_R[RRRN_R], cpu_R[RRRN_S], RRRN_T ? RRRN_T : -1);
break;
case 12: /*ST2n*/
+ gen_window_check1(dc, RRRN_S);
if (RRRN_T < 8) { /*MOVI.Nn*/
tcg_gen_movi_i32(cpu_R[RRRN_S],
RRRN_R | (RRRN_T << 4) |
@@ -1826,6 +1929,7 @@ static void disas_xtensa_insn(DisasContext *dc)
case 13: /*ST3n*/
switch (RRRN_R) {
case 0: /*MOV.Nn*/
+ gen_window_check2(dc, RRRN_S, RRRN_T);
tcg_gen_mov_i32(cpu_R[RRRN_T], cpu_R[RRRN_S]);
break;
@@ -1926,6 +2030,7 @@ static void gen_intermediate_code_internal(
dc.ccount_delta = 0;
reset_sar_tracker(&dc);
+ reset_used_window(&dc);
gen_icount_start();
--
1.7.3.4
