};
/* Arithmetic exception */
-enum {
- EXCP_ARITH_OVERFLOW,
-};
+#define EXC_M_IOV (1<<16) /* Integer Overflow */
+#define EXC_M_INE (1<<15) /* Inexact result */
+#define EXC_M_UNF (1<<14) /* Underflow */
+#define EXC_M_FOV (1<<13) /* Overflow */
+#define EXC_M_DZE (1<<12) /* Division by zero */
+#define EXC_M_INV (1<<11) /* Invalid operation */
+#define EXC_M_SWC (1<<10) /* Software completion */
enum {
IR_V0 = 0,
uint64_t tmp = op1;
op1 += op2;
if (unlikely((tmp ^ op2 ^ (-1ULL)) & (tmp ^ op1) & (1ULL << 63))) {
- helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ helper_excp(EXCP_ARITH, EXC_M_IOV);
}
return op1;
}
uint64_t tmp = op1;
op1 = (uint32_t)(op1 + op2);
if (unlikely((tmp ^ op2 ^ (-1UL)) & (tmp ^ op1) & (1UL << 31))) {
- helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ helper_excp(EXCP_ARITH, EXC_M_IOV);
}
return op1;
}
uint64_t res;
res = op1 - op2;
if (unlikely((op1 ^ op2) & (res ^ op1) & (1ULL << 63))) {
- helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ helper_excp(EXCP_ARITH, EXC_M_IOV);
}
return res;
}
uint32_t res;
res = op1 - op2;
if (unlikely((op1 ^ op2) & (res ^ op1) & (1UL << 31))) {
- helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ helper_excp(EXCP_ARITH, EXC_M_IOV);
}
return res;
}
int64_t res = (int64_t)op1 * (int64_t)op2;
if (unlikely((int32_t)res != res)) {
- helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ helper_excp(EXCP_ARITH, EXC_M_IOV);
}
return (int64_t)((int32_t)res);
}
muls64(&tl, &th, op1, op2);
/* If th != 0 && th != -1, then we had an overflow */
if (unlikely((th + 1) > 1)) {
- helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ helper_excp(EXCP_ARITH, EXC_M_IOV);
}
return tl;
}
r |= ((uint64_t)(a & 0x7FFFFFFF)) << 29;
if (v && (int64_t)((int32_t)r) != (int64_t)r) {
- helper_excp(EXCP_ARITH, EXCP_ARITH_OVERFLOW);
+ helper_excp(EXCP_ARITH, EXC_M_IOV);
}
if (s) {
/* TODO */