DEF_HELPER_4(bcdsub, i32, avr, avr, avr, i32)
DEF_HELPER_3(bcdcfn, i32, avr, avr, i32)
DEF_HELPER_3(bcdctn, i32, avr, avr, i32)
+DEF_HELPER_3(bcdcfz, i32, avr, avr, i32)
DEF_HELPER_2(xsadddp, void, env, i32)
DEF_HELPER_2(xssubdp, void, env, i32)
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;
+}
+
void helper_vsbox(ppc_avr_t *r, ppc_avr_t *a)
{
int i;