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

check_ba.s (937B)

      1# mach: crisv0 crisv3 crisv8 crisv10 crisv32
      2# output: a\n
      3
      4
      5 .set smalloffset,0
      6 .set largeoffset,0
      7
      8
      9	.macro fail
     10	jump _fail
     11	.endm
     12
     13	.global	main
     14main:
     15 moveq 0,$r3
     16
     17; Short forward branch.
     18 ba 0f
     19 addq 1,$r3
     20 fail
     21
     22; Max short forward branch.
     231:
     24 ba 2f
     25 addq 1,$r3
     26 fail
     27
     28; Short backward branch.
     290:
     30 ba 1b
     31 addq 1,$r3
     32 fail
     33
     34 .space 254-2+smalloffset+1b-.,0
     35 moveq 0,$r3
     36
     372:
     38; Transit branch (long).
     39 ba 3f
     40 addq 1,$r3
     41 fail
     42
     43 moveq 0,$r3
     444:
     45; Long forward branch.
     46 ba 5f
     47 addq 1,$r3
     48 fail
     49
     50 .space 256-2-smalloffset+4b-.,0
     51
     52 moveq 0,$r3
     53
     54; Max short backward branch.
     553:
     56 ba 4b
     57 addq 1,$r3
     58 fail
     59
     605:
     61; Max long forward branch.
     62 ba 6f
     63 addq 1,$r3
     64 fail
     65
     66 .space 32766+largeoffset-2+5b-.,0
     67
     68 moveq 0,$r3
     696:
     70; Transit branch.
     71 ba 7f
     72 addq 1,$r3
     73 fail
     74
     75 moveq 0,$r3
     769:
     77 jsr pass
     78 nop
     79
     80; Transit branch.
     81 moveq 0,$r3
     827:
     83 ba 8f
     84 addq 1,$r3
     85 fail
     86
     87 .space 32768-largeoffset+9b-.,0
     88
     898:
     90; Max long backward branch.
     91 ba 9b
     92 addq 1,$r3
     93 fail