kern
annotate src/regs.S @ 49:50730d42d2d3
fuck yeah, now do priviledge levels and TSS
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sat, 30 Jul 2011 07:21:54 +0300 |
| parents | 6c9138a87e02 |
| children |
| rev | line source |
|---|---|
| nuclear@13 | 1 .text |
| nuclear@13 | 2 .align 4 |
| nuclear@13 | 3 |
| nuclear@13 | 4 .globl get_regs |
| nuclear@13 | 5 get_regs: |
| nuclear@13 | 6 pushl %ebp |
| nuclear@13 | 7 movl %esp, %ebp |
| nuclear@13 | 8 |
| nuclear@13 | 9 pushl %edx |
| nuclear@13 | 10 movl 8(%ebp), %edx |
| nuclear@13 | 11 |
| nuclear@13 | 12 movl %eax, (%edx) |
| nuclear@13 | 13 movl %ebx, 4(%edx) |
| nuclear@13 | 14 movl %ecx, 8(%edx) |
| nuclear@13 | 15 |
| nuclear@13 | 16 /* juggle edx */ |
| nuclear@13 | 17 movl %edx, %eax |
| nuclear@13 | 18 popl %edx |
| nuclear@13 | 19 movl %edx, 12(%eax) |
| nuclear@13 | 20 pushl %edx |
| nuclear@13 | 21 movl %eax, %edx |
| nuclear@13 | 22 |
| nuclear@13 | 23 /* those two are pointless in a function */ |
| nuclear@13 | 24 movl %esp, 16(%edx) |
| nuclear@13 | 25 movl %ebp, 20(%edx) |
| nuclear@13 | 26 |
| nuclear@13 | 27 movl %esi, 24(%edx) |
| nuclear@13 | 28 movl %edi, 28(%edx) |
| nuclear@13 | 29 |
| nuclear@13 | 30 pushf |
| nuclear@13 | 31 popl %eax |
| nuclear@13 | 32 movl %eax, 32(%edx) |
| nuclear@13 | 33 |
| nuclear@13 | 34 movw %cs, 36(%edx) |
| nuclear@13 | 35 movw %ss, 40(%edx) |
| nuclear@13 | 36 movw %ds, 44(%edx) |
| nuclear@13 | 37 movw %es, 48(%edx) |
| nuclear@13 | 38 movw %fs, 52(%edx) |
| nuclear@13 | 39 movw %gs, 56(%edx) |
| nuclear@13 | 40 |
| nuclear@13 | 41 pushl %ebx |
| nuclear@13 | 42 movl %cr0, %ebx |
| nuclear@13 | 43 movl %ebx, 60(%edx) |
| nuclear@13 | 44 /*movl %cr1, %ebx |
| nuclear@13 | 45 movl %ebx, 64(%edx)*/ |
| nuclear@14 | 46 movl %cr2, %ebx |
| nuclear@14 | 47 movl %ebx, 68(%edx) |
| nuclear@13 | 48 movl %cr3, %ebx |
| nuclear@13 | 49 movl %ebx, 72(%edx) |
| nuclear@13 | 50 popl %ebx |
| nuclear@13 | 51 |
| nuclear@13 | 52 popl %edx |
| nuclear@13 | 53 popl %ebp |
| nuclear@13 | 54 ret |