diff options
| author | Devtools Arcadia <arcadia-devtools@yandex-team.ru> | 2022-02-07 18:08:42 +0300 |
|---|---|---|
| committer | Devtools Arcadia <arcadia-devtools@mous.vla.yp-c.yandex.net> | 2022-02-07 18:08:42 +0300 |
| commit | 1110808a9d39d4b808aef724c861a2e1a38d2a69 (patch) | |
| tree | e26c9fed0de5d9873cce7e00bc214573dc2195b7 /util/system/context_i686.asm | |
| download | ydb-1110808a9d39d4b808aef724c861a2e1a38d2a69.tar.gz | |
intermediate changes
ref:cde9a383711a11544ce7e107a78147fb96cc4029
Diffstat (limited to 'util/system/context_i686.asm')
| -rw-r--r-- | util/system/context_i686.asm | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/util/system/context_i686.asm b/util/system/context_i686.asm new file mode 100644 index 0000000000..11f8cecc8e --- /dev/null +++ b/util/system/context_i686.asm @@ -0,0 +1,43 @@ + [bits 32] + + %define MJB_BX 0 + %define MJB_SI 1 + %define MJB_DI 2 + %define MJB_BP 3 + %define MJB_SP 4 + %define MJB_PC 5 + %define MJB_RSP MJB_SP + %define MJB_SIZE 24 + + %define LINKAGE 4 + %define PCOFF 0 + %define PTR_SIZE 4 + + %define PARMS LINKAGE + %define JMPBUF PARMS + %define JBUF PARMS + %define VAL JBUF + PTR_SIZE + +EXPORT __mylongjmp + mov ecx, [esp + JBUF] + mov eax, [esp + VAL] + mov edx, [ecx + MJB_PC*4] + mov ebx, [ecx + MJB_BX*4] + mov esi, [ecx + MJB_SI*4] + mov edi, [ecx + MJB_DI*4] + mov ebp, [ecx + MJB_BP*4] + mov esp, [ecx + MJB_SP*4] + jmp edx + +EXPORT __mysetjmp + mov eax, [esp + JMPBUF] + mov [eax + MJB_BX*4], ebx + mov [eax + MJB_SI*4], esi + mov [eax + MJB_DI*4], edi + lea ecx, [esp + JMPBUF] + mov [eax + MJB_SP*4], ecx + mov ecx, [esp + PCOFF] + mov [eax + MJB_PC*4], ecx + mov [eax + MJB_BP*4], ebp + xor eax, eax + ret |