diff options
| author | faissaloo <faissaloo@gmail.com> | 2016-07-23 19:31:17 +0100 |
|---|---|---|
| committer | faissaloo <faissaloo@gmail.com> | 2016-07-23 19:31:17 +0100 |
| commit | c2f00cb50d8507c83b45798fb287dff407d18cdd (patch) | |
| tree | 45734a87cc50dcd0e11109ca04469daef3773e9b /sh.asm | |
| parent | ece7bd6dc17ba91deff32a9c121af80bcc1e79f2 (diff) | |
| download | dbsh-c2f00cb50d8507c83b45798fb287dff407d18cdd.tar.gz | |
Path finder now compares a qword at a time for speed
Diffstat (limited to 'sh.asm')
| -rw-r--r-- | sh.asm | 32 |
1 files changed, 11 insertions, 21 deletions
@@ -154,27 +154,17 @@ _parse_path2: ; Reads the PATH variable _pathfinder: inc r8 - xor rax, rax - mov byte al, [r8] - cmp al, `P` - jne _pathfinder - mov byte al, [r8+1] - cmp al, `A` - jne _pathfinder - mov byte al, [r8+2] - cmp al, `T` - jne _pathfinder - mov byte al, [r8+3] - cmp al, `H` - jne _pathfinder - mov byte al, [r8+4] - cmp al, `=` - jne _pathfinder - mov byte al, [r8+5] - cmp al, `"` - jne _pathfinder - test al, al ;checks for 0 - je _quit + + ;Check that we've found the PATH variable + mov r10, `\0\0PATH="` + mov rax, [r8] + shl rax, 16 + cmp rax,r10 + jne _pathfinder ;if we haven't, let's move right one and see if it's there + shr rax, 56 + test al, al ;checks for a null terminator after 'PATH=' + jz _quit + add r8, 0x6 mov r10, 0x1 push 0x0 |