cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

test_lf_nes.c (1586B)

      1#include <stdio.h>
      2
      3int main(void)
      4{
      5    int a;
      6    float b, c;
      7    int result;
      8
      9    a = 0;
     10    b = 23.1;
     11    c = 23.1;
     12    result = 0x1;
     13    __asm
     14    ("lfnes:\n\t"
     15     "l.addi    %0, %0, 0x1\n\t"
     16     "lf.sfne.s %1, %2\n\t"
     17     "l.bf      lfnes\n\t"
     18     "l.nop\n\t"
     19     : "+r"(a)
     20     : "r"(b), "r"(c)
     21    );
     22    if (a != result) {
     23        printf("lf.sfne.s error");
     24        return -1;
     25    }
     26
     27    b = 12.4;
     28    c = 7.8;
     29    result = 0x3;
     30    __asm
     31    ("l.addi    %0, %0, 0x1\n\t"
     32     "l.addi    %0, %0, 0x1\n\t"
     33     "lf.sfne.s %1, %2\n\t"
     34     "l.bf      1f\n\t"
     35     "l.nop\n\t"
     36     "l.addi    %0, %0, 0x1\n\t"
     37     "l.addi    %0, %0, 0x1\n\t"
     38     "1:\n\t"
     39     : "+r"(a)
     40     : "r"(b), "r"(c)
     41    );
     42    if (a != result) {
     43        printf("lf.sfne.s error\n");
     44        return -1;
     45    }
     46/*    int a;
     47    double b, c;
     48    int result;
     49
     50    a = 0;
     51    b = 124.3;
     52    c = 124.3;
     53    result = 0x1;
     54    __asm
     55    ("lfned:\n\t"
     56     "l.addi    %0, %0, 0x1\n\t"
     57     "lf.sfne.d %1, %2\n\t"
     58     "l.bf      lfned\n\t"
     59     "l.nop\n\t"
     60     : "+r"(a)
     61     : "r"(b), "r"(c)
     62    );
     63    if (a != result) {
     64        printf("lf.sfne.d error\n");
     65        return -1;
     66    }
     67
     68    b = 11.5;
     69    c = 16.7;
     70    result = 0x3;
     71    __asm
     72    ("l.addi    %0, %0, 0x1\n\t"
     73     "l.addi    %0, %0, 0x1\n\t"
     74     "lf.sfne.d %1, %2\n\t"
     75     "l.bf      1f\n\t"
     76     "l.nop\n\t"
     77     "l.addi    r4, r4, 0x1\n\t"
     78     "l.addi    r4, r4, 0x1\n\t"
     79     "1:\n\t"
     80     : "+r"(a)
     81     : "r"(b), "r"(c)
     82    );
     83    if (a != result) {
     84        printf("lf.sfne.d error\n");
     85        return -1;
     86    }*/
     87
     88    return 0;
     89}