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-rw-r--r--target-ppc/int_helper.c249
1 files changed, 249 insertions, 0 deletions
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
index dca479838d..9ac204a393 100644
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "cpu.h"
+#include "internal.h"
#include "exec/exec-all.h"
#include "qemu/host-utils.h"
#include "exec/helper-proto.h"
@@ -527,6 +528,40 @@ void helper_vaddcuw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
}
}
+/* vprtybw */
+void helper_vprtybw(ppc_avr_t *r, ppc_avr_t *b)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(r->u32); i++) {
+ uint64_t res = b->u32[i] ^ (b->u32[i] >> 16);
+ res ^= res >> 8;
+ r->u32[i] = res & 1;
+ }
+}
+
+/* vprtybd */
+void helper_vprtybd(ppc_avr_t *r, ppc_avr_t *b)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(r->u64); i++) {
+ uint64_t res = b->u64[i] ^ (b->u64[i] >> 32);
+ res ^= res >> 16;
+ res ^= res >> 8;
+ r->u64[i] = res & 1;
+ }
+}
+
+/* vprtybq */
+void helper_vprtybq(ppc_avr_t *r, ppc_avr_t *b)
+{
+ uint64_t res = b->u64[0] ^ b->u64[1];
+ res ^= res >> 32;
+ res ^= res >> 16;
+ res ^= res >> 8;
+ r->u64[LO_IDX] = res & 1;
+ r->u64[HI_IDX] = 0;
+}
+
#define VARITH_DO(name, op, element) \
void helper_v##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
{ \
@@ -1717,6 +1752,34 @@ void helper_vrsqrtefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
}
}
+#define VRLMI(name, size, element, insert) \
+void helper_##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
+{ \
+ int i; \
+ for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
+ uint##size##_t src1 = a->element[i]; \
+ uint##size##_t src2 = b->element[i]; \
+ uint##size##_t src3 = r->element[i]; \
+ uint##size##_t begin, end, shift, mask, rot_val; \
+ \
+ shift = extract##size(src2, 0, 6); \
+ end = extract##size(src2, 8, 6); \
+ begin = extract##size(src2, 16, 6); \
+ rot_val = rol##size(src1, shift); \
+ mask = mask_u##size(begin, end); \
+ if (insert) { \
+ r->element[i] = (rot_val & mask) | (src3 & ~mask); \
+ } else { \
+ r->element[i] = (rot_val & mask); \
+ } \
+ } \
+}
+
+VRLMI(vrldmi, 64, u64, 1);
+VRLMI(vrlwmi, 32, u32, 1);
+VRLMI(vrldnm, 64, u64, 0);
+VRLMI(vrlwnm, 32, u32, 0);
+
void helper_vsel(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b,
ppc_avr_t *c)
{
@@ -2429,6 +2492,8 @@ void helper_vsubecuq(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
#define BCD_NEG_PREF 0xD
#define BCD_NEG_ALT 0xB
#define BCD_PLUS_ALT_2 0xE
+#define NATIONAL_PLUS 0x2B
+#define NATIONAL_NEG 0x2D
#if defined(HOST_WORDS_BIGENDIAN)
#define BCD_DIG_BYTE(n) (15 - (n/2))
@@ -2495,6 +2560,33 @@ static void bcd_put_digit(ppc_avr_t *bcd, uint8_t digit, int n)
}
}
+static int bcd_cmp_zero(ppc_avr_t *bcd)
+{
+ if (bcd->u64[HI_IDX] == 0 && (bcd->u64[LO_IDX] >> 4) == 0) {
+ return 1 << CRF_EQ;
+ } else {
+ return (bcd_get_sgn(bcd) == 1) ? 1 << CRF_GT : 1 << CRF_LT;
+ }
+}
+
+static uint16_t get_national_digit(ppc_avr_t *reg, int n)
+{
+#if defined(HOST_WORDS_BIGENDIAN)
+ return reg->u16[8 - n];
+#else
+ return reg->u16[n];
+#endif
+}
+
+static void set_national_digit(ppc_avr_t *reg, uint8_t val, int n)
+{
+#if defined(HOST_WORDS_BIGENDIAN)
+ reg->u16[8 - n] = val;
+#else
+ reg->u16[n] = val;
+#endif
+}
+
static int bcd_cmp_mag(ppc_avr_t *a, ppc_avr_t *b)
{
int i;
@@ -2625,6 +2717,163 @@ uint32_t helper_bcdsub(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t ps)
return helper_bcdadd(r, a, &bcopy, ps);
}
+uint32_t helper_bcdcfn(ppc_avr_t *r, ppc_avr_t *b, uint32_t ps)
+{
+ int i;
+ int cr = 0;
+ uint16_t national = 0;
+ uint16_t sgnb = get_national_digit(b, 0);
+ ppc_avr_t ret = { .u64 = { 0, 0 } };
+ int invalid = (sgnb != NATIONAL_PLUS && sgnb != NATIONAL_NEG);
+
+ for (i = 1; i < 8; i++) {
+ national = get_national_digit(b, i);
+ if (unlikely(national < 0x30 || national > 0x39)) {
+ invalid = 1;
+ break;
+ }
+
+ bcd_put_digit(&ret, national & 0xf, i);
+ }
+
+ if (sgnb == NATIONAL_PLUS) {
+ bcd_put_digit(&ret, (ps == 0) ? BCD_PLUS_PREF_1 : BCD_PLUS_PREF_2, 0);
+ } else {
+ bcd_put_digit(&ret, BCD_NEG_PREF, 0);
+ }
+
+ cr = bcd_cmp_zero(&ret);
+
+ if (unlikely(invalid)) {
+ cr = 1 << CRF_SO;
+ }
+
+ *r = ret;
+
+ return cr;
+}
+
+uint32_t helper_bcdctn(ppc_avr_t *r, ppc_avr_t *b, uint32_t ps)
+{
+ int i;
+ int cr = 0;
+ int sgnb = bcd_get_sgn(b);
+ int invalid = (sgnb == 0);
+ ppc_avr_t ret = { .u64 = { 0, 0 } };
+
+ int ox_flag = (b->u64[HI_IDX] != 0) || ((b->u64[LO_IDX] >> 32) != 0);
+
+ for (i = 1; i < 8; i++) {
+ set_national_digit(&ret, 0x30 + bcd_get_digit(b, i, &invalid), i);
+
+ if (unlikely(invalid)) {
+ break;
+ }
+ }
+ set_national_digit(&ret, (sgnb == -1) ? NATIONAL_NEG : NATIONAL_PLUS, 0);
+
+ cr = bcd_cmp_zero(b);
+
+ if (ox_flag) {
+ cr |= 1 << CRF_SO;
+ }
+
+ if (unlikely(invalid)) {
+ cr = 1 << CRF_SO;
+ }
+
+ *r = ret;
+
+ return cr;
+}
+
+uint32_t helper_bcdcfz(ppc_avr_t *r, ppc_avr_t *b, uint32_t ps)
+{
+ int i;
+ int cr = 0;
+ int invalid = 0;
+ int zone_digit = 0;
+ int zone_lead = ps ? 0xF : 0x3;
+ int digit = 0;
+ ppc_avr_t ret = { .u64 = { 0, 0 } };
+ int sgnb = b->u8[BCD_DIG_BYTE(0)] >> 4;
+
+ if (unlikely((sgnb < 0xA) && ps)) {
+ invalid = 1;
+ }
+
+ for (i = 0; i < 16; i++) {
+ zone_digit = (i * 2) ? b->u8[BCD_DIG_BYTE(i * 2)] >> 4 : zone_lead;
+ digit = b->u8[BCD_DIG_BYTE(i * 2)] & 0xF;
+ if (unlikely(zone_digit != zone_lead || digit > 0x9)) {
+ invalid = 1;
+ break;
+ }
+
+ bcd_put_digit(&ret, digit, i + 1);
+ }
+
+ if ((ps && (sgnb == 0xB || sgnb == 0xD)) ||
+ (!ps && (sgnb & 0x4))) {
+ bcd_put_digit(&ret, BCD_NEG_PREF, 0);
+ } else {
+ bcd_put_digit(&ret, BCD_PLUS_PREF_1, 0);
+ }
+
+ cr = bcd_cmp_zero(&ret);
+
+ if (unlikely(invalid)) {
+ cr = 1 << CRF_SO;
+ }
+
+ *r = ret;
+
+ return cr;
+}
+
+uint32_t helper_bcdctz(ppc_avr_t *r, ppc_avr_t *b, uint32_t ps)
+{
+ int i;
+ int cr = 0;
+ uint8_t digit = 0;
+ int sgnb = bcd_get_sgn(b);
+ int zone_lead = (ps) ? 0xF0 : 0x30;
+ int invalid = (sgnb == 0);
+ ppc_avr_t ret = { .u64 = { 0, 0 } };
+
+ int ox_flag = ((b->u64[HI_IDX] >> 4) != 0);
+
+ for (i = 0; i < 16; i++) {
+ digit = bcd_get_digit(b, i + 1, &invalid);
+
+ if (unlikely(invalid)) {
+ break;
+ }
+
+ ret.u8[BCD_DIG_BYTE(i * 2)] = zone_lead + digit;
+ }
+
+ if (ps) {
+ bcd_put_digit(&ret, (sgnb == 1) ? 0xC : 0xD, 1);
+ } else {
+ bcd_put_digit(&ret, (sgnb == 1) ? 0x3 : 0x7, 1);
+ }
+
+ cr = bcd_cmp_zero(b);
+
+ if (ox_flag) {
+ cr |= 1 << CRF_SO;
+ }
+
+ if (unlikely(invalid)) {
+ cr = 1 << CRF_SO;
+ }
+
+ *r = ret;
+
+ return cr;
+}
+
void helper_vsbox(ppc_avr_t *r, ppc_avr_t *a)
{
int i;
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-06 23:33:52 +0000