On 09/08/2016 03:31 PM, Michael Rolnik wrote:
+target_ulong helper_norm(CPUARCState *env, uint32_t src1)
+{
+ if (src1 == 0x00000000 || src1 == 0xffffffff) {
+ return 31;
+ } else {
+ if ((src1 & 0x80000000) == 0x80000000) {
+ src1 = ~src1;
+ }
+ return clz32(src1) - 1;
+ }
This is clrsb32.
+target_ulong helper_normw(CPUARCState *env, uint32_t src1)
+{
+ src1 &= 0xffff;
+
+ if (src1 == 0x0000 || src1 == 0xffff) {
+ return 15;
+ } else {
+ if ((src1 & 0x8000) == 0x8000) {
+ src1 = ~src1 & 0xffff;
+ }
+ return clz32(src1) - 17;
+ }
clrsb32((int16_t)src1) - 16
r~
