Add description for missign extensions

Makefile

@@ -30,7 +30,7 @@ ifneq ($(OS),Windows_NT)
 			HEADERS += $(SRC_DIR)freq/freq.h
 			CFLAGS += -pthread
 		endif
-		ifeq ($(os), $(filter $(os), FreeBSD Darwin))
+		ifeq ($(os), FreeBSD)
 			SOURCE += $(SRC_COMMON)sysctl.c
 			HEADERS += $(SRC_COMMON)sysctl.h
 		endif

msr.c

@@ -1,56 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
-
-#define MSR_PSTATE_0 0xC0010064
-
-// Reads a 64-bit MSR value from a given CPU core
-int read_msr(int cpu, uint64_t msr_addr, uint64_t *value) {
-    char msr_path[64];
-    snprintf(msr_path, sizeof(msr_path), "/dev/cpu/%d/msr", cpu);
-
-    int fd = open(msr_path, O_RDONLY);
-    if (fd < 0) {
-        perror("open");
-        return -1;
-    }
-
-    if (lseek(fd, msr_addr, SEEK_SET) == -1) {
-        perror("lseek");
-        close(fd);
-        return -1;
-    }
-
-    if (read(fd, value, sizeof(*value)) != sizeof(*value)) {
-        perror("read");
-        close(fd);
-        return -1;
-    }
-
-    close(fd);
-    return 0;
-}
-
-int main(int argc, char **argv) {
-    int cpu = 0;
-    if (argc > 1) cpu = atoi(argv[1]);
-
-    uint64_t val;
-    if (read_msr(cpu, MSR_PSTATE_0, &val) != 0) {
-        fprintf(stderr, "Failed to read MSR on CPU %d\n", cpu);
-        return 1;
-    }
-
-    unsigned int fid = val & 0xff;          // bits [7:0]
-    unsigned int did = (val >> 8) & 0x3f;   // bits [13:8]
-    double freq_mhz = (fid * 25.0) / (1 << did);  // 25 MHz ref clock on Zen CPUs
-
-    printf("CPU%d: MSR[0x%lx] = 0x%016llx\n", cpu, (unsigned long)MSR_PSTATE_0, (unsigned long long)val);
-    printf("FID: %u, DID: %u\n", fid, did);
-    printf("Estimated frequency: %.2f MHz\n", freq_mhz);
-
-    return 0;
-}

src/common/cpu.h

@@ -138,7 +138,7 @@ struct features {
 
 struct extensions {
   char* str;
-  bool* mask; // allocated at runtime with size RISCV_ISA_EXT_ID_MAX
+  bool* mask; // allocated at runtime with size RISCV_ISA_EXT_ID_MAX-1
 };
 
 struct cpuInfo {

src/common/global.c

@@ -62,7 +62,7 @@
 #endif
 
 #ifndef GIT_FULL_VERSION
-  static const char* VERSION = "1.07";
+  static const char* VERSION = "1.06";
 #endif
 
 enum {