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#include <limits.h> |
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#include <string.h> |
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#include "jit_x86.h" |
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#include "opcode_helpers.h" |
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#include "x86_macros.h" |
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dvander@113
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#define NUM_INFO_PARAMS 6 |
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jitoffs_t Write_Execute_Function(JitWriter *jit) |
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{ |
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/** |
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* The variables we're passed in: |
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* sp_context_t *ctx, uint32_t code_idx, cell_t *result |
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*/ |
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/** |
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* !NOTE! |
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* Currently, we do not accept ctx->frm as the new frame pointer. |
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* Instead, we copy the frame from the stack pointer. |
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* This is because we do not support resuming or sleeping! |
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*/ |
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//push ebp |
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//mov ebp, esp |
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IA32_Push_Reg(jit, REG_EBP); |
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IA32_Mov_Reg_Rm(jit, REG_EBP, REG_ESP, MOD_REG); |
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//push esi |
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//push edi |
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//push ebx |
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IA32_Push_Reg(jit, REG_ESI); |
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IA32_Push_Reg(jit, REG_EDI); |
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IA32_Push_Reg(jit, REG_EBX); |
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//sub esp, 4*n - reserve info array |
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//mov esi, esp - save info pointer |
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IA32_Sub_Rm_Imm8(jit, REG_ESP, 4*NUM_INFO_PARAMS, MOD_REG); |
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IA32_Mov_Reg_Rm(jit, AMX_REG_INFO, REG_ESP, MOD_REG); |
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/* Initial memory setup */ |
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//mov eax, [ebp+16] - get result pointer |
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//mov [esi+8], eax - store into info pointer |
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//mov eax, [ebp+8] - get context |
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//mov [esi+12], eax - store context into info pointer |
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//mov ecx, [eax+<offs>] - get heap pointer |
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//mov [esi+4], ecx - store heap into info pointer |
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//mov ebp, [eax+<offs>] - get data pointer |
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IA32_Mov_Reg_Rm_Disp8(jit, REG_EAX, REG_EBP, 16); |
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IA32_Mov_Rm_Reg_Disp8(jit, AMX_REG_INFO, REG_EAX, AMX_INFO_RETVAL); |
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IA32_Mov_Reg_Rm_Disp8(jit, REG_EAX, REG_EBP, 8); |
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IA32_Mov_Rm_Reg_Disp8(jit, AMX_REG_INFO, REG_EAX, AMX_INFO_CONTEXT); |
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IA32_Mov_Reg_Rm_Disp8(jit, REG_ECX, REG_EAX, offsetof(sp_context_t, hp)); |
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IA32_Mov_Rm_Reg_Disp8(jit, AMX_REG_INFO, REG_ECX, AMX_INFO_HEAP); |
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IA32_Mov_Reg_Rm_Disp8(jit, AMX_REG_DAT, REG_EAX, offsetof(sp_context_t, data)); |
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/* Frame setup */ |
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//mov edi, [eax+<offs>] - get stack pointer |
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//add edi, ebp - relocate to data section |
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//mov ebx, edi - copy sp to frm |
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IA32_Mov_Reg_Rm_Disp8(jit, AMX_REG_STK, REG_EAX, offsetof(sp_context_t, sp)); |
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IA32_Add_Rm_Reg(jit, AMX_REG_STK, AMX_REG_DAT, MOD_REG); |
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IA32_Mov_Reg_Rm(jit, AMX_REG_FRM, AMX_REG_STK, MOD_REG); |
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/* Info memory setup */ |
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//mov ecx, [eax+<offs>] - copy memsize to temp var |
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//mov [esi+x], ecx - store unrelocated |
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//add ecx, ebp - relocate |
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//mov [esi+x], ecx - store relocated |
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IA32_Mov_Reg_Rm_Disp8(jit, REG_ECX, REG_EAX, offsetof(sp_context_t, memory)); |
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IA32_Mov_Rm_Reg_Disp8(jit, AMX_REG_INFO, REG_ECX, AMX_INFO_STACKTOP_U); |
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IA32_Add_Reg_Rm(jit, AMX_REG_TMP, AMX_REG_DAT, MOD_REG); |
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IA32_Mov_Rm_Reg_Disp8(jit, AMX_REG_INFO, REG_ECX, AMX_INFO_STACKTOP); |
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/* Remaining needed vars */ |
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//mov ecx, [esp+(4*(NUM_INFO_PARAMS+3))+12] - get code index (normally esp+12, but we have another array on the stack) |
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//add ecx, [eax+<offs>] - add code base to index |
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IA32_Mov_Reg_Esp_Disp8(jit, REG_ECX, 12+(4*(NUM_INFO_PARAMS+3))); |
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IA32_Add_Reg_Rm_Disp8(jit, REG_ECX, REG_EAX, offsetof(sp_context_t, codebase)); |
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/* by now, everything is set up, so we can call into the plugin */ |
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//call ecx |
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IA32_Call_Reg(jit, REG_ECX); |
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/* if the code flow gets to here, there was a normal return */ |
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//mov ecx, [esi+8] - get retval pointer |
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//mov [ecx], eax - store retval from PRI |
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//mov eax, SP_ERROR_NONE - set no error |
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IA32_Mov_Reg_Rm_Disp8(jit, REG_ECX, AMX_REG_INFO, AMX_INFO_RETVAL); |
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IA32_Mov_Rm_Reg(jit, REG_ECX, AMX_REG_PRI, MOD_MEM_REG); |
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IA32_Mov_Reg_Imm32(jit, REG_EAX, SP_ERROR_NONE); |
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/* save where error checking/halting functions should go to */ |
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jitoffs_t offs_return = jit->get_outputpos(); |
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//mov esp, esi - restore stack pointer |
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IA32_Mov_Reg_Rm(jit, REG_ESP, REG_ESI, MOD_REG); |
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/* _FOR NOW_ ... |
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* We are going to restore SP, HP, and FRM for now. This is for |
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* debugging only, to check for alignment errors. As such: |
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* :TODO: probably remove this. |
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*/ |
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//mov ecx, [esi+context] |
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//sub edi, ebp |
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//mov edx, [esi+heap] |
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//mov [ecx+sp], edi |
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//mov [ecx+hp], edx |
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IA32_Mov_Reg_Rm_Disp8(jit, REG_ECX, REG_ESI, AMX_INFO_CONTEXT); |
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IA32_Sub_Reg_Rm(jit, REG_EDI, REG_EBP, MOD_REG); |
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IA32_Mov_Reg_Rm_Disp8(jit, REG_EDX, REG_ESI, AMX_INFO_HEAP); |
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IA32_Mov_Rm_Reg_Disp8(jit, REG_ECX, REG_EDI, offsetof(sp_context_t, sp)); |
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IA32_Mov_Rm_Reg(jit, REG_ECX, REG_EDX, MOD_REG); |
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//add esp, 4*NUM_INFO_PARAMS |
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//pop ebx |
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//pop edi |
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//pop esi |
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//pop ebp |
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//ret |
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IA32_Add_Rm_Imm8(jit, REG_ESP, 4*NUM_INFO_PARAMS, MOD_REG); |
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IA32_Pop_Reg(jit, REG_EBX); |
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IA32_Pop_Reg(jit, REG_EDI); |
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IA32_Pop_Reg(jit, REG_ESI); |
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IA32_Pop_Reg(jit, REG_EBP); |
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IA32_Return(jit); |
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return offs_return; |
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dvander@73
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} |
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dvander@73
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dvander@86
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void Write_BreakDebug(JitWriter *jit) |
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{ |
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//push ecx |
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//mov ecx, [esi+ctx] |
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//cmp [ecx+dbreak], 0 |
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//jnz :nocall |
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IA32_Push_Reg(jit, AMX_REG_TMP); |
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IA32_Mov_Reg_Rm_Disp8(jit, AMX_REG_TMP, AMX_REG_INFO, AMX_INFO_CONTEXT); |
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faluco@97
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IA32_Cmp_Rm_Disp8_Imm8(jit, AMX_REG_TMP, offsetof(sp_context_t, dbreak), 0); |
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jitoffs_t jmp = IA32_Jump_Cond_Imm8(jit, CC_NZ, 0); |
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//pushad |
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IA32_Pushad(jit); |
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//push [esi+frm] |
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//push [ecx+context] |
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//mov ecx, [ecx+dbreak] |
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//call ecx |
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dvander@86
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//add esp, 8 |
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dvander@86
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//popad |
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faluco@97
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IA32_Push_Rm_Disp8(jit, AMX_REG_INFO, AMX_INFO_FRAME); //:TODO: move to regs and push? and dont disp for 0 |
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dvander@86
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IA32_Push_Rm_Disp8(jit, AMX_REG_TMP, offsetof(sp_context_t, context)); |
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dvander@86
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IA32_Mov_Reg_Rm_Disp8(jit, AMX_REG_TMP, AMX_REG_TMP, offsetof(sp_context_t, dbreak)); |
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dvander@86
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IA32_Call_Reg(jit, AMX_REG_TMP); |
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IA32_Add_Rm_Imm8(jit, REG_ESP, 4*2, MOD_REG); |
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dvander@86
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IA32_Popad(jit); |
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dvander@86
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dvander@86
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//:nocall |
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IA32_Send_Jump8_Here(jit, jmp); |
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IA32_Add_Rm_Imm8(jit, REG_ESP, 4*1, MOD_REG); |
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IA32_Return(jit); |
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} |
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dvander@112
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void Write_GetError(JitWriter *jit) |
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{ |
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CompData *data = (CompData *)jit->data; |
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dvander@112
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//mov eax, [esi+info.context] |
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//mov eax, [eax+ctx.error] |
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dvander@112
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//jmp [jit_return] |
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dvander@112
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IA32_Mov_Reg_Rm_Disp8(jit, REG_EAX, AMX_REG_INFO, AMX_INFO_CONTEXT); |
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dvander@112
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IA32_Mov_Reg_Rm_Disp8(jit, REG_EAX, REG_EAX, offsetof(sp_context_t, err)); |
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dvander@112
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IA32_Jump_Imm32_Abs(jit, data->jit_return); |
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dvander@112
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} |
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dvander@112
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dvander@112
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void Write_SetError(JitWriter *jit, int error) |
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dvander@112
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{ |
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dvander@112
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CompData *data = (CompData *)jit->data; |
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dvander@112
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//mov eax, <error> |
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dvander@112
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//jmp [jit_return] |
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IA32_Mov_Reg_Imm32(jit, REG_EAX, error); |
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dvander@112
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IA32_Jump_Imm32_Abs(jit, data->jit_return); |
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dvander@75
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} |
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dvander@75
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faluco@81
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void Write_Check_DivZero(JitWriter *jit, jit_uint8_t reg) |
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faluco@81
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{ |
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faluco@81
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//test reg, reg |
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dvander@105
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//jz :error |
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faluco@81
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IA32_Test_Rm_Reg(jit, reg, reg, MOD_REG); |
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dvander@105
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IA32_Jump_Cond_Imm32_Abs(jit, CC_Z, ((CompData *)jit->data)->jit_error_divzero); |
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dvander@105
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} |
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dvander@105
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void Write_CheckHeap_Min(JitWriter *jit) |
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{ |
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dvander@105
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/* Check if the stack went beyond the heap low. |
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* This usually means there was a compiler error. |
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* NOTE: Special optimization here. |
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dvander@105
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* The heap low is always known ahead of time! :) |
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*/ |
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CompData *data = (CompData *)jit->data; |
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//cmp [esi+info.heap], <heaplow> |
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//jb :error |
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IA32_Cmp_Rm_Imm32_Disp8(jit, AMX_REG_INFO, AMX_INFO_HEAP, data->plugin->data_size); |
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dvander@105
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IA32_Jump_Cond_Imm32_Abs(jit, CC_B, data->jit_error_heapmin); |
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dvander@105
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} |
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faluco@81
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dvander@105
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void Write_CheckHeap_Low(JitWriter *jit) |
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{ |
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dvander@105
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/* Check if the heap is trying to grow beyond the stack. |
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*/ |
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dvander@105
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//mov ecx, [esi+info.heap] |
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dvander@105
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//lea ecx, [ebp+ecx+STACK_MARGIN] |
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dvander@105
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//cmp ecx, edi |
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dvander@105
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//ja :error ; I think this is right |
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dvander@105
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IA32_Mov_Reg_Rm_Disp8(jit, AMX_REG_TMP, AMX_REG_INFO, AMX_INFO_HEAP); |
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IA32_Lea_Reg_DispRegMultImm8(jit, AMX_REG_TMP, AMX_REG_DAT, AMX_REG_TMP, NOSCALE, STACK_MARGIN); |
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dvander@105
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IA32_Cmp_Reg_Rm(jit, AMX_REG_TMP, AMX_REG_STK, MOD_REG); |
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dvander@105
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IA32_Jump_Cond_Imm32_Abs(jit, CC_A, ((CompData *)jit->data)->jit_error_heaplow); |
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faluco@81
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} |
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dvander@105
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dvander@105
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void Write_CheckStack_Min(JitWriter *jit) |
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dvander@105
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{ |
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dvander@105
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/* Check if the stack went beyond the stack top |
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dvander@105
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* This usually means there was a compiler error. |
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dvander@105
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*/ |
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dvander@105
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//cmp edi, [esi+info.stacktop] |
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dvander@105
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//jae :error |
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dvander@105
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IA32_Cmp_Reg_Rm_Disp8(jit, AMX_REG_STK, AMX_REG_INFO, AMX_INFO_STACKTOP); |
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dvander@105
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IA32_Jump_Cond_Imm32_Abs(jit, CC_AE, ((CompData *)jit->data)->jit_error_stackmin); |
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dvander@105
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} |
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dvander@105
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dvander@105
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void Write_CheckStack_Low(JitWriter *jit) |
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dvander@105
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{ |
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dvander@105
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/* Check if the stack went beyond the heap boundary. |
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dvander@105
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* Unfortunately this one isn't as quick as the other check. |
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dvander@105
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* The stack margin check is important for sysreq.n having space. |
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dvander@105
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*/ |
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dvander@105
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//mov ecx, [esi+info.heap] |
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dvander@105
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//lea ecx, [ebp+ecx+STACK_MARGIN] |
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dvander@105
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//cmp edi, ecx |
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dvander@105
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//jb :error ; I think this is right |
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dvander@105
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IA32_Mov_Reg_Rm_Disp8(jit, AMX_REG_TMP, AMX_REG_INFO, AMX_INFO_HEAP); |
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dvander@105
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IA32_Lea_Reg_DispRegMultImm8(jit, AMX_REG_TMP, AMX_REG_DAT, AMX_REG_TMP, NOSCALE, STACK_MARGIN); |
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dvander@105
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IA32_Cmp_Reg_Rm(jit, AMX_REG_STK, AMX_REG_TMP, MOD_REG); |
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dvander@105
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IA32_Jump_Cond_Imm32_Abs(jit, CC_B, ((CompData *)jit->data)->jit_error_stacklow); |
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dvander@105
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} |
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dvander@105
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dvander@105
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void Write_Check_VerifyAddr(JitWriter *jit, jit_uint8_t reg) |
|
dvander@75
|
248 |
{ |
|
dvander@75
|
249 |
CompData *data = (CompData *)jit->data; |
|
dvander@75
|
250 |
|
|
dvander@75
|
251 |
/* :TODO: Should this be checking for below heaplow? |
|
dvander@75
|
252 |
* The old JIT did not. |
|
dvander@75
|
253 |
*/ |
|
dvander@75
|
254 |
|
|
dvander@75
|
255 |
bool call = false; |
|
dvander@75
|
256 |
if (!(data->inline_level & JIT_INLINE_ERRORCHECKS)) |
|
dvander@75
|
257 |
{ |
|
dvander@75
|
258 |
/* If we're not in the initial generation phase, |
|
dvander@75
|
259 |
* Write a call to the actual routine instead. |
|
dvander@75
|
260 |
*/ |
|
dvander@105
|
261 |
if ((reg == REG_EAX) && data->jit_verify_addr_eax) |
|
dvander@75
|
262 |
{ |
|
dvander@75
|
263 |
jitoffs_t call = IA32_Call_Imm32(jit, 0); |
|
dvander@105
|
264 |
IA32_Write_Jump32(jit, call, data->jit_verify_addr_eax); |
|
dvander@105
|
265 |
return; |
|
dvander@105
|
266 |
} else if ((reg == REG_EDX) && data->jit_verify_addr_edx) { |
|
dvander@105
|
267 |
jitoffs_t call = IA32_Call_Imm32(jit, 0); |
|
dvander@105
|
268 |
IA32_Write_Jump32(jit, call, data->jit_verify_addr_edx); |
|
dvander@75
|
269 |
return; |
|
dvander@75
|
270 |
} |
|
dvander@75
|
271 |
call = true; |
|
dvander@75
|
272 |
} |
|
dvander@75
|
273 |
|
|
dvander@105
|
274 |
/** |
|
dvander@105
|
275 |
* :TODO: If we can't find a nicer way of doing this, |
|
dvander@105
|
276 |
* then scrap it on high optimizations. The second portion is not needed at all! |
|
dvander@105
|
277 |
*/ |
|
dvander@105
|
278 |
|
|
dvander@105
|
279 |
/* Part 1: Check if we're in the memory bounds */ |
|
dvander@105
|
280 |
//cmp <reg>, [esi+info.stpu] |
|
dvander@105
|
281 |
//jae :error |
|
dvander@105
|
282 |
IA32_Cmp_Reg_Rm_Disp8(jit, reg, AMX_REG_INFO, AMX_INFO_STACKTOP_U); |
|
dvander@105
|
283 |
IA32_Jump_Cond_Imm32_Abs(jit, CC_AE, ((CompData *)jit->data)->jit_error_memaccess); |
|
dvander@105
|
284 |
|
|
dvander@105
|
285 |
/* Part 2: Check if we're in the invalid region between HP and SP */ |
|
dvander@105
|
286 |
jitoffs_t jmp; |
|
dvander@105
|
287 |
//cmp <reg>, [esi+info.heap] |
|
dvander@105
|
288 |
//jb :continue |
|
dvander@105
|
289 |
//lea ecx, [ebp+<reg>] |
|
dvander@105
|
290 |
//cmp edi, ecx |
|
dvander@105
|
291 |
//jb :error |
|
dvander@105
|
292 |
//:continue |
|
dvander@75
|
293 |
IA32_Cmp_Reg_Rm_Disp8(jit, reg, AMX_REG_INFO, AMX_INFO_HEAP); |
|
dvander@105
|
294 |
jmp = IA32_Jump_Cond_Imm8(jit, CC_B, 0); |
|
dvander@105
|
295 |
IA32_Lea_Reg_DispRegMultImm8(jit, AMX_REG_TMP, AMX_REG_DAT, reg, NOSCALE, 0); |
|
dvander@105
|
296 |
IA32_Cmp_Reg_Rm(jit, AMX_REG_TMP, AMX_REG_STK, MOD_REG); |
|
dvander@105
|
297 |
IA32_Jump_Cond_Imm32_Abs(jit, CC_B, ((CompData *)jit->data)->jit_error_memaccess); |
|
dvander@105
|
298 |
IA32_Send_Jump8_Here(jit, jmp); |
|
dvander@105
|
299 |
|
|
dvander@75
|
300 |
if (call) |
|
dvander@75
|
301 |
{ |
|
dvander@75
|
302 |
IA32_Return(jit); |
|
dvander@75
|
303 |
} |
|
dvander@75
|
304 |
} |
|
dvander@75
|
305 |
|
|
dvander@70
|
306 |
void Macro_PushN_Addr(JitWriter *jit, int i) |
|
dvander@70
|
307 |
{ |
|
dvander@70
|
308 |
//push eax |
|
faluco@97
|
309 |
//mov eax, [esi+frm] |
|
dvander@70
|
310 |
//loop i times: |
|
dvander@70
|
311 |
// lea ecx, [eax+<val>] |
|
faluco@97
|
312 |
// mov [edi-4*i], ecx |
|
faluco@97
|
313 |
//sub edi, 4*N |
|
dvander@70
|
314 |
//pop eax |
|
dvander@70
|
315 |
|
|
dvander@70
|
316 |
cell_t val; |
|
dvander@70
|
317 |
int n = 1; |
|
dvander@70
|
318 |
IA32_Push_Reg(jit, AMX_REG_PRI); |
|
faluco@97
|
319 |
IA32_Mov_Reg_Rm(jit, AMX_REG_PRI, AMX_REG_INFO, MOD_MEM_REG); |
|
dvander@70
|
320 |
do |
|
dvander@70
|
321 |
{ |
|
dvander@70
|
322 |
val = jit->read_cell(); |
|
dvander@70
|
323 |
if (val < SCHAR_MAX && val > SCHAR_MIN) |
|
dvander@70
|
324 |
IA32_Lea_DispRegImm8(jit, AMX_REG_TMP, AMX_REG_PRI, (jit_int8_t)val); |
|
dvander@70
|
325 |
else |
|
dvander@70
|
326 |
IA32_Lea_DispRegImm32(jit, AMX_REG_TMP, AMX_REG_PRI, val); |
|
dvander@70
|
327 |
IA32_Mov_Rm_Reg_Disp8(jit, AMX_REG_STK, AMX_REG_TMP, -4*n); |
|
dvander@70
|
328 |
} while (n++ < i); |
|
dvander@70
|
329 |
IA32_Sub_Rm_Imm8(jit, AMX_REG_STK, 4*i, MOD_REG); |
|
dvander@70
|
330 |
IA32_Pop_Reg(jit, AMX_REG_PRI); |
|
dvander@70
|
331 |
} |
|
dvander@70
|
332 |
|
|
dvander@70
|
333 |
void Macro_PushN_S(JitWriter *jit, int i) |
|
dvander@70
|
334 |
{ |
|
dvander@70
|
335 |
//loop i times: |
|
dvander@70
|
336 |
// mov ecx, [ebx+<val>] |
|
faluco@97
|
337 |
// mov [edi-4*i], ecx |
|
faluco@97
|
338 |
//sub edi, 4*N |
|
dvander@70
|
339 |
|
|
dvander@70
|
340 |
cell_t val; |
|
dvander@70
|
341 |
int n = 1; |
|
dvander@70
|
342 |
do |
|
dvander@70
|
343 |
{ |
|
dvander@70
|
344 |
val = jit->read_cell(); |
|
dvander@70
|
345 |
if (val < SCHAR_MAX && val > SCHAR_MIN) |
|
dvander@70
|
346 |
IA32_Mov_Reg_Rm_Disp8(jit, AMX_REG_TMP, AMX_REG_FRM, (jit_int8_t)val); |
|
dvander@70
|
347 |
else |
|
dvander@70
|
348 |
IA32_Mov_Reg_Rm_Disp32(jit, AMX_REG_TMP, AMX_REG_FRM, val); |
|
dvander@70
|
349 |
IA32_Mov_Rm_Reg_Disp8(jit, AMX_REG_STK, AMX_REG_TMP, -4*n); |
|
dvander@70
|
350 |
} while (n++ < i); |
|
dvander@70
|
351 |
IA32_Sub_Rm_Imm8(jit, AMX_REG_STK, 4*i, MOD_REG); |
|
dvander@70
|
352 |
} |
|
dvander@70
|
353 |
|
|
dvander@70
|
354 |
void Macro_PushN_C(JitWriter *jit, int i) |
|
dvander@70
|
355 |
{ |
|
dvander@70
|
356 |
//loop i times: |
|
faluco@97
|
357 |
// mov [edi-4*i], <val> |
|
faluco@97
|
358 |
//sub edi, 4*N |
|
dvander@70
|
359 |
|
|
dvander@70
|
360 |
int n = 1; |
|
dvander@70
|
361 |
do |
|
dvander@70
|
362 |
{ |
|
dvander@70
|
363 |
IA32_Mov_Rm_Imm32_Disp8(jit, AMX_REG_STK, jit->read_cell(), -4*n); |
|
dvander@70
|
364 |
} while (n++ < i); |
|
dvander@70
|
365 |
IA32_Sub_Rm_Imm8(jit, AMX_REG_STK, 4*i, MOD_REG); |
|
dvander@70
|
366 |
} |
|
dvander@70
|
367 |
|
|
dvander@70
|
368 |
void Macro_PushN(JitWriter *jit, int i) |
|
dvander@70
|
369 |
{ |
|
dvander@70
|
370 |
//loop i times: |
|
faluco@97
|
371 |
// mov ecx, [ebp+<val>] |
|
faluco@97
|
372 |
// mov [edi-4*i], ecx |
|
faluco@97
|
373 |
//sub edi, 4*N |
|
dvander@70
|
374 |
|
|
dvander@70
|
375 |
cell_t val; |
|
dvander@70
|
376 |
int n = 1; |
|
dvander@70
|
377 |
do |
|
dvander@70
|
378 |
{ |
|
dvander@70
|
379 |
val = jit->read_cell(); |
|
dvander@70
|
380 |
if (val < SCHAR_MAX && val > SCHAR_MIN) |
|
dvander@70
|
381 |
IA32_Mov_Reg_Rm_Disp8(jit, AMX_REG_TMP, AMX_REG_DAT, (jit_int8_t)val); |
|
dvander@70
|
382 |
else |
|
dvander@70
|
383 |
IA32_Mov_Reg_Rm_Disp32(jit, AMX_REG_TMP, AMX_REG_DAT, val); |
|
dvander@70
|
384 |
IA32_Mov_Rm_Reg_Disp8(jit, AMX_REG_STK, AMX_REG_TMP, -4*n); |
|
dvander@70
|
385 |
} while (n++ < i); |
|
dvander@70
|
386 |
IA32_Sub_Rm_Imm8(jit, AMX_REG_STK, 4*i, MOD_REG); |
|
dvander@70
|
387 |
} |
|
dvander@70
|
388 |
|
|
dvander@113
|
389 |
void WriteOp_Sysreq_C_Function(JitWriter *jit) |
|
dvander@113
|
390 |
{ |
|
dvander@113
|
391 |
/* The small daddy of the big daddy of opcodes. |
|
dvander@113
|
392 |
* ecx - native index |
|
dvander@113
|
393 |
*/ |
|
dvander@113
|
394 |
CompData *data = (CompData *)jit->data; |
|
dvander@113
|
395 |
|
|
dvander@113
|
396 |
/* save registers we will need */ |
|
dvander@113
|
397 |
//push edx |
|
dvander@113
|
398 |
IA32_Push_Reg(jit, AMX_REG_ALT); |
|
dvander@113
|
399 |
|
|
dvander@113
|
400 |
/* push some callback stuff */ |
|
dvander@113
|
401 |
//push edi ; stack |
|
dvander@113
|
402 |
//push ecx ; native index |
|
dvander@113
|
403 |
IA32_Push_Reg(jit, AMX_REG_STK); |
|
dvander@113
|
404 |
IA32_Push_Reg(jit, REG_ECX); |
|
dvander@113
|
405 |
|
|
dvander@113
|
406 |
/* Relocate stack, heap, frm information, then store back */ |
|
dvander@113
|
407 |
//sub edi, ebp |
|
dvander@113
|
408 |
//mov ecx, [esi+hea] |
|
dvander@113
|
409 |
//mov eax, [esi+context] |
|
dvander@113
|
410 |
//mov [eax+hp], ecx |
|
dvander@113
|
411 |
//mov [eax+sp], edi |
|
dvander@113
|
412 |
//mov ecx, [esi+frm] |
|
dvander@113
|
413 |
//mov [eax+frm], ecx |
|
dvander@113
|
414 |
IA32_Sub_Rm_Reg(jit, AMX_REG_STK, AMX_REG_DAT, MOD_REG); |
|
dvander@113
|
415 |
IA32_Mov_Reg_Rm_Disp8(jit, AMX_REG_TMP, AMX_REG_INFO, AMX_INFO_HEAP); |
|
dvander@113
|
416 |
IA32_Mov_Reg_Rm_Disp8(jit, REG_EAX, AMX_REG_INFO, AMX_INFO_CONTEXT); |
|
dvander@113
|
417 |
IA32_Mov_Rm_Reg_Disp8(jit, REG_EAX, AMX_REG_TMP, offsetof(sp_context_t, hp)); |
|
dvander@113
|
418 |
IA32_Mov_Rm_Reg_Disp8(jit, REG_EAX, AMX_REG_STK, offsetof(sp_context_t, sp)); |
|
dvander@113
|
419 |
IA32_Mov_Reg_Rm(jit, AMX_REG_TMP, AMX_INFO_FRM, MOD_REG); |
|
dvander@113
|
420 |
IA32_Mov_Rm_Reg_Disp8(jit, REG_EAX, AMX_REG_TMP, offsetof(sp_context_t, frm)); |
|
dvander@113
|
421 |
|
|
dvander@113
|
422 |
/* finally, push the last parameter and make the call */ |
|
dvander@113
|
423 |
//push eax ; context |
|
dvander@113
|
424 |
//call NativeCallback |
|
dvander@113
|
425 |
IA32_Push_Reg(jit, REG_EAX); |
|
dvander@113
|
426 |
jitoffs_t call = IA32_Call_Imm32(jit, 0); |
|
dvander@113
|
427 |
if (!data->debug) |
|
dvander@113
|
428 |
{ |
|
dvander@113
|
429 |
IA32_Write_Jump32_Abs(jit, call, NativeCallback); |
|
dvander@113
|
430 |
} else { |
|
dvander@113
|
431 |
IA32_Write_Jump32_Abs(jit, call, NativeCallback_Debug); |
|
dvander@113
|
432 |
} |
|
dvander@113
|
433 |
|
|
dvander@113
|
434 |
/* Test for error */ |
|
dvander@113
|
435 |
//mov ecx, [esi+context] |
|
dvander@113
|
436 |
//cmp [ecx+err], 0 |
|
dvander@113
|
437 |
//jnz :error |
|
dvander@113
|
438 |
IA32_Mov_Reg_Rm_Disp8(jit, AMX_REG_TMP, AMX_REG_INFO, AMX_INFO_CONTEXT); |
|
dvander@113
|
439 |
IA32_Cmp_Rm_Imm32_Disp8(jit, AMX_REG_TMP, offsetof(sp_context_t, err), 0); |
|
dvander@113
|
440 |
IA32_Jump_Cond_Imm32_Abs(jit, CC_NZ, data->jit_extern_error); |
|
dvander@113
|
441 |
|
|
dvander@113
|
442 |
/* restore what we damaged */ |
|
dvander@113
|
443 |
//add esp, 4*3 |
|
dvander@113
|
444 |
//add edi, ebp |
|
dvander@113
|
445 |
//pop edx |
|
dvander@113
|
446 |
IA32_Add_Rm_Imm8(jit, REG_ESP, 4*3, MOD_REG); |
|
dvander@113
|
447 |
IA32_Add_Rm_Reg(jit, AMX_REG_STK, AMX_REG_DAT, MOD_REG); |
|
dvander@113
|
448 |
IA32_Pop_Reg(jit, AMX_REG_ALT); |
|
dvander@113
|
449 |
|
|
dvander@113
|
450 |
//ret |
|
dvander@113
|
451 |
IA32_Return(jit); |
|
dvander@113
|
452 |
} |
|
dvander@113
|
453 |
|
|
dvander@124
|
454 |
void GenerateArrayIndirectionVectors(cell_t *arraybase, cell_t dims[], ucell_t _dimcount, bool autozero) |
|
dvander@121
|
455 |
{ |
|
dvander@121
|
456 |
cell_t vectors = 1; /* we need one vector to start off with */ |
|
dvander@121
|
457 |
cell_t cur_offs = 0; |
|
dvander@121
|
458 |
cell_t cur_write = 0; |
|
dvander@124
|
459 |
cell_t dimcount = _dimcount; |
|
dvander@121
|
460 |
|
|
dvander@121
|
461 |
/* Initialize rotation */ |
|
dvander@121
|
462 |
cur_write = dims[dimcount-1]; |
|
dvander@121
|
463 |
|
|
dvander@121
|
464 |
while (--dimcount >= 1) |
|
dvander@121
|
465 |
{ |
|
dvander@121
|
466 |
cell_t cur_dim = dims[dimcount]; |
|
dvander@121
|
467 |
cell_t sub_dim = dims[dimcount-1]; |
|
dvander@121
|
468 |
for (cell_t i=0; i<vectors; i++) |
|
dvander@121
|
469 |
{ |
|
dvander@121
|
470 |
for (cell_t j=0; j<cur_dim; j++) |
|
dvander@121
|
471 |
{ |
|
dvander@121
|
472 |
arraybase[cur_offs] = (cur_write - cur_offs)*sizeof(cell_t); |
|
dvander@121
|
473 |
cur_offs++; |
|
dvander@121
|
474 |
cur_write += sub_dim; |
|
dvander@121
|
475 |
} |
|
dvander@121
|
476 |
} |
|
dvander@121
|
477 |
vectors = cur_dim; |
|
dvander@121
|
478 |
} |
|
dvander@121
|
479 |
|
|
dvander@124
|
480 |
/* everything after cur_offs can be zeroed */ |
|
dvander@124
|
481 |
if (autozero) |
|
dvander@124
|
482 |
{ |
|
dvander@124
|
483 |
size_t size = 1; |
|
dvander@124
|
484 |
for (ucell_t i=0; i<_dimcount; i++) |
|
dvander@124
|
485 |
{ |
|
dvander@124
|
486 |
size *= dims[i]; |
|
dvander@124
|
487 |
} |
|
dvander@124
|
488 |
memset(&arraybase[cur_offs], 0, size*sizeof(cell_t)); |
|
dvander@124
|
489 |
} |
|
dvander@124
|
490 |
|
|
dvander@121
|
491 |
return; |
|
dvander@121
|
492 |
} |
|
dvander@121
|
493 |
|
|
dvander@121
|
494 |
/** |
|
dvander@121
|
495 |
* A few notes about this function. |
|
dvander@121
|
496 |
* I was more concerned about efficient use of registers here, rather than |
|
dvander@121
|
497 |
* fine-tuned optimization. The reason is that the code is already complicated, |
|
dvander@121
|
498 |
* and it is very easy to mess up. |
|
dvander@121
|
499 |
*/ |
|
dvander@120
|
500 |
void WriteIntrinsic_GenArray(JitWriter *jit) |
|
dvander@120
|
501 |
{ |
|
dvander@121
|
502 |
/** |
|
dvander@121
|
503 |
* save important values |
|
dvander@121
|
504 |
*/ |
|
dvander@121
|
505 |
//push ebx |
|
dvander@121
|
506 |
//push eax |
|
dvander@124
|
507 |
//push edx |
|
dvander@121
|
508 |
//push ecx ;value is referenced on stack |
|
dvander@121
|
509 |
IA32_Push_Reg(jit, REG_EBX); |
|
dvander@121
|
510 |
IA32_Push_Reg(jit, REG_EAX); |
|
dvander@124
|
511 |
IA32_Push_Reg(jit, REG_EDX); |
|
dvander@121
|
512 |
IA32_Push_Reg(jit, REG_ECX); |
|
dvander@121
|
513 |
|
|
dvander@121
|
514 |
/** |
|
dvander@121
|
515 |
* Calculate how many cells will be needed. |
|
dvander@121
|
516 |
*/ |
|
dvander@121
|
517 |
//mov edx, [edi] ;get last dimension's count |
|
dvander@121
|
518 |
//mov eax, 1 ;position at second to last dimension |
|
dvander@121
|
519 |
//:loop |
|
dvander@121
|
520 |
//cmp eax, [esp] ;compare to # of params |
|
dvander@121
|
521 |
//jae :done ;end loop if done |
|
dvander@121
|
522 |
//mov ecx, [edi+eax*4] ;get dimension size |
|
dvander@121
|
523 |
//imul edx, ecx ;multiply by size |
|
dvander@121
|
524 |
//add edx, ecx ;add size (indirection vector) |
|
dvander@121
|
525 |
//inc eax ;increment |
|
dvander@121
|
526 |
//jmp :loop ;jump back |
|
dvander@121
|
527 |
//:done |
|
dvander@121
|
528 |
IA32_Mov_Reg_Rm(jit, REG_EDX, AMX_REG_STK, MOD_MEM_REG); |
|
dvander@121
|
529 |
IA32_Mov_Reg_Imm32(jit, REG_EAX, 1); |
|
dvander@121
|
530 |
jitoffs_t loop1 = jit->get_outputpos(); |
|
dvander@121
|
531 |
IA32_Cmp_Reg_Rm_ESP(jit, REG_EAX); |
|
dvander@121
|
532 |
jitoffs_t done1 = IA32_Jump_Cond_Imm8(jit, CC_AE, 0); |
|
dvander@121
|
533 |
IA32_Mov_Reg_Rm_Disp_Reg(jit, REG_ECX, AMX_REG_STK, REG_EAX, SCALE4); |
|
dvander@121
|
534 |
IA32_IMul_Reg_Rm(jit, REG_EDX, REG_ECX, MOD_REG); |
|
dvander@121
|
535 |
IA32_Add_Rm_Reg(jit, REG_EDX, REG_ECX, MOD_REG); |
|
dvander@121
|
536 |
IA32_Inc_Reg(jit, REG_EAX); |
|
dvander@121
|
537 |
IA32_Write_Jump8(jit, IA32_Jump_Imm8(jit, loop1), loop1); |
|
dvander@121
|
538 |
IA32_Send_Jump8_Here(jit, done1); |
|
dvander@121
|
539 |
|
|
dvander@121
|
540 |
/* Test if we have heap space for this */ |
|
dvander@121
|
541 |
//mov eax, [esi+info.heap] ;get heap pointer |
|
dvander@121
|
542 |
//lea eax, [eax+edx*4+4] ;new heap pointer |
|
dvander@121
|
543 |
//cmp eax, <hlw> ;compare to heap low |
|
dvander@121
|
544 |
//jbe :error ;die if we hit this (it should always be >) |
|
dvander@121
|
545 |
//add eax, ebp ;relocate to stack |
|
dvander@121
|
546 |
//cmp eax, edi ;die if above the stack pointer |
|
dvander@121
|
547 |
//jae :error |
|
dvander@121
|
548 |
IA32_Mov_Reg_Rm_Disp8(jit, REG_EAX, AMX_REG_INFO, AMX_INFO_HEAP); |
|
dvander@121
|
549 |
IA32_Lea_Reg_DispRegMultImm8(jit, REG_EAX, REG_EAX, REG_EDX, SCALE4, 4); |
|
dvander@121
|
550 |
IA32_Cmp_Rm_Imm32(jit, MOD_REG, REG_EAX, ((CompData *)jit->data)->plugin->data_size); |
|
dvander@121
|
551 |
IA32_Jump_Cond_Imm32_Abs(jit, CC_BE, ((CompData *)jit->data)->jit_error_array_too_big); |
|
dvander@121
|
552 |
IA32_Add_Rm_Reg(jit, REG_EAX, AMX_REG_DAT, MOD_REG); |
|
dvander@121
|
553 |
IA32_Cmp_Reg_Rm(jit, REG_EAX, AMX_REG_STK, MOD_REG); |
|
dvander@121
|
554 |
IA32_Jump_Cond_Imm32_Abs(jit, CC_AE, ((CompData *)jit->data)->jit_error_array_too_big); |
|
dvander@121
|
555 |
|
|
dvander@121
|
556 |
/* Prepare for indirection iteration */ |
|
dvander@121
|
557 |
//mov eax, [esi+info.heap] ;get heap pointer |
|
dvander@121
|
558 |
//lea ebx, [eax+edx*4+4] ;new heap pointer |
|
dvander@121
|
559 |
//mov [esi+info.heap], ebx ;store back |
|
dvander@121
|
560 |
//lea ebx, [ebp+ebx-4] ;relocate |
|
dvander@121
|
561 |
//mov [ebx], edx ;store back total size |
|
dvander@121
|
562 |
//push eax ;save heap pointer - we need it |
|
dvander@121
|
563 |
IA32_Mov_Reg_Rm_Disp8(jit, REG_EAX, AMX_REG_INFO, AMX_INFO_HEAP); |
|
dvander@121
|
564 |
IA32_Lea_Reg_DispRegMultImm8(jit, REG_EBX, REG_EAX, REG_EDX, SCALE4, 4); |
|
dvander@121
|
565 |
IA32_Mov_Rm_Reg_Disp8(jit, AMX_REG_INFO, REG_EBX, AMX_INFO_HEAP); |
|
dvander@121
|
566 |
IA32_Lea_Reg_DispRegMultImm8(jit, REG_EBX, AMX_REG_DAT, REG_EBX, NOSCALE, -4); |
|
dvander@121
|
567 |
IA32_Mov_Rm_Reg(jit, REG_EBX, REG_EDX, MOD_MEM_REG); |
|
dvander@121
|
568 |
IA32_Push_Reg(jit, REG_EAX); |
|
dvander@121
|
569 |
|
|
dvander@121
|
570 |
/* This part is too messy to do in straight assembly. |
|
dvander@121
|
571 |
* I'm letting the compiler handle it and thus it's in C. |
|
dvander@121
|
572 |
*/ |
|
dvander@121
|
573 |
//lea ebx, [ebp+eax] ;get base pointer |
|
dvander@124
|
574 |
//push dword [esp-8] ;push autozero |
|
dvander@124
|
575 |
//push dword [esp-8] ;push dimension count |
|
dvander@121
|
576 |
//push edi ;push dim array |
|
dvander@121
|
577 |
//push ebx |
|
dvander@121
|
578 |
//call GenerateArrayIndirectionVectors |
|
dvander@121
|
579 |
//add esp, 4*3 |
|
dvander@121
|
580 |
IA32_Lea_Reg_DispRegMult(jit, REG_EBX, REG_EAX, REG_EBP, NOSCALE); |
|
dvander@124
|
581 |
IA32_Push_Rm_Disp8_ESP(jit, 8); |
|
dvander@124
|
582 |
IA32_Push_Rm_Disp8_ESP(jit, 8); |
|
dvander@121
|
583 |
IA32_Push_Reg(jit, REG_EDI); |
|
dvander@121
|
584 |
IA32_Push_Reg(jit, REG_EBX); |
|
dvander@121
|
585 |
IA32_Write_Jump32_Abs(jit, IA32_Call_Imm32(jit, 0), (void *)&GenerateArrayIndirectionVectors); |
|
dvander@124
|
586 |
IA32_Add_Rm_Imm8(jit, REG_ESP, 4*4, MOD_REG); |
|
dvander@121
|
587 |
|
|
dvander@121
|
588 |
/* Store the heap pointer back into the stack */ |
|
dvander@121
|
589 |
//pop eax ;restore heap pointer |
|
dvander@121
|
590 |
//pop ecx ;restore param count |
|
dvander@121
|
591 |
//lea edi, [edi+ecx*4-4] ;pop params-4 off the stack |
|
dvander@121
|
592 |
//mov [edi], eax ;store back the heap pointer |
|
dvander@121
|
593 |
IA32_Pop_Reg(jit, REG_EAX); |
|
dvander@121
|
594 |
IA32_Pop_Reg(jit, REG_ECX); |
|
dvander@121
|
595 |
IA32_Lea_Reg_DispRegMultImm8(jit, AMX_REG_STK, AMX_REG_STK, REG_ECX, SCALE4, -4); |
|
dvander@121
|
596 |
IA32_Mov_Rm_Reg(jit, AMX_REG_STK, REG_EAX, MOD_MEM_REG); |
|
dvander@121
|
597 |
|
|
dvander@121
|
598 |
/* Return to caller */ |
|
dvander@124
|
599 |
//pop edx |
|
dvander@121
|
600 |
//pop eax |
|
dvander@121
|
601 |
//pop ebx |
|
dvander@121
|
602 |
//ret |
|
dvander@124
|
603 |
IA32_Pop_Reg(jit, REG_ECX); |
|
dvander@121
|
604 |
IA32_Pop_Reg(jit, REG_EAX); |
|
dvander@121
|
605 |
IA32_Pop_Reg(jit, REG_EBX); |
|
dvander@121
|
606 |
IA32_Return(jit); |
|
dvander@120
|
607 |
} |
|
dvander@120
|
608 |
|
|
dvander@105
|
609 |
void WriteOp_Sysreq_N_Function(JitWriter *jit) |
|
dvander@105
|
610 |
{ |
|
dvander@105
|
611 |
/* The big daddy of opcodes. |
|
dvander@105
|
612 |
* eax - num_params |
|
dvander@105
|
613 |
* ecx - native index |
|
dvander@105
|
614 |
*/ |
|
dvander@105
|
615 |
CompData *data = (CompData *)jit->data; |
|
dvander@105
|
616 |
|
|
dvander@105
|
617 |
/* store the number of parameters on the stack */ |
|
dvander@105
|
618 |
//mov [edi-4], eax |
|
dvander@105
|
619 |
//sub edi, 4 |
|
dvander@105
|
620 |
IA32_Mov_Rm_Reg_Disp8(jit, AMX_REG_STK, REG_EAX, -4); |
|
dvander@105
|
621 |
IA32_Sub_Rm_Imm8(jit, AMX_REG_STK, 4, MOD_REG); |
|
dvander@105
|
622 |
|
|
dvander@105
|
623 |
/* save registers we will need */ |
|
dvander@105
|
624 |
//push eax ; num_params for stack popping |
|
dvander@105
|
625 |
//push edx |
|
dvander@105
|
626 |
IA32_Push_Reg(jit, REG_EAX); |
|
dvander@105
|
627 |
IA32_Push_Reg(jit, AMX_REG_ALT); |
|
dvander@105
|
628 |
|
|
dvander@105
|
629 |
/* push some callback stuff */ |
|
dvander@105
|
630 |
//push edi ; stack |
|
dvander@105
|
631 |
//push ecx ; native index |
|
dvander@105
|
632 |
IA32_Push_Reg(jit, AMX_REG_STK); |
|
dvander@105
|
633 |
IA32_Push_Reg(jit, REG_ECX); |
|
dvander@105
|
634 |
|
|
dvander@105
|
635 |
/* Relocate stack, heap, frm information, then store back */ |
|
dvander@105
|
636 |
//sub edi, ebp |
|
dvander@105
|
637 |
//mov ecx, [esi+hea] |
|
dvander@105
|
638 |
//mov eax, [esi+context] |
|
dvander@105
|
639 |
//mov [eax+hp], ecx |
|
dvander@105
|
640 |
//mov [eax+sp], edi |
|
dvander@105
|
641 |
//mov ecx, [esi+frm] |
|
dvander@105
|
642 |
//mov [eax+frm], ecx |
|
dvander@105
|
643 |
IA32_Sub_Rm_Reg(jit, AMX_REG_STK, AMX_REG_DAT, MOD_REG); |
|
dvander@105
|
644 |
IA32_Mov_Reg_Rm_Disp8(jit, AMX_REG_TMP, AMX_REG_INFO, AMX_INFO_HEAP); |
|
dvander@105
|
645 |
IA32_Mov_Reg_Rm_Disp8(jit, REG_EAX, AMX_REG_INFO, AMX_INFO_CONTEXT); |
|
dvander@105
|
646 |
IA32_Mov_Rm_Reg_Disp8(jit, REG_EAX, AMX_REG_TMP, offsetof(sp_context_t, hp)); |
|
dvander@105
|
647 |
IA32_Mov_Rm_Reg_Disp8(jit, REG_EAX, AMX_REG_STK, offsetof(sp_context_t, sp)); |
|
dvander@105
|
648 |
IA32_Mov_Reg_Rm(jit, AMX_REG_TMP, AMX_INFO_FRM, MOD_REG); |
|
dvander@105
|
649 |
IA32_Mov_Rm_Reg_Disp8(jit, REG_EAX, AMX_REG_TMP, offsetof(sp_context_t, frm)); |
|
dvander@105
|
650 |
|
|
dvander@105
|
651 |
/* finally, push the last parameter and make the call */ |
|
dvander@105
|
652 |
//push eax ; context |
|
dvander@105
|
653 |
//call NativeCallback |
|
dvander@105
|
654 |
IA32_Push_Reg(jit, REG_EAX); |
|
dvander@105
|
655 |
jitoffs_t call = IA32_Call_Imm32(jit, 0); |
|
dvander@113
|
656 |
if (!data->debug) |
|
dvander@113
|
657 |
{ |
|
dvander@113
|
658 |
IA32_Write_Jump32_Abs(jit, call, NativeCallback); |
|
dvander@113
|
659 |
} else { |
|
dvander@113
|
660 |
IA32_Write_Jump32_Abs(jit, call, NativeCallback_Debug); |
|
dvander@113
|
661 |
} |
|
dvander@112
|
662 |
|
|
dvander@112
|
663 |
/* Test for error */ |
|
dvander@112
|
664 |
//mov ecx, [esi+context] |
|
dvander@112
|
665 |
//cmp [ecx+err], 0 |
|
dvander@112
|
666 |
//jnz :error |
|
dvander@112
|
667 |
IA32_Mov_Reg_Rm_Disp8(jit, AMX_REG_TMP, AMX_REG_INFO, AMX_INFO_CONTEXT); |
|
dvander@112
|
668 |
IA32_Cmp_Rm_Imm32_Disp8(jit, AMX_REG_TMP, offsetof(sp_context_t, err), 0); |
|
dvander@112
|
669 |
IA32_Jump_Cond_Imm32_Abs(jit, CC_NZ, data->jit_extern_error); |
|
dvander@105
|
670 |
|
|
dvander@105
|
671 |
/* restore what we damaged */ |
|
dvander@105
|
672 |
//add esp, 4*3 |
|
dvander@105
|
673 |
//add edi, ebp |
|
dvander@105
|
674 |
//pop edx |
|
dvander@105
|
675 |
//pop ecx ; num_params |
|
dvander@105
|
676 |
IA32_Add_Rm_Imm8(jit, REG_ESP, 4*3, MOD_REG); |
|
dvander@105
|
677 |
IA32_Add_Rm_Reg(jit, AMX_REG_STK, AMX_REG_DAT, MOD_REG); |
|
dvander@105
|
678 |
IA32_Pop_Reg(jit, AMX_REG_ALT); |
|
dvander@105
|
679 |
IA32_Pop_Reg(jit, REG_ECX); |
|
dvander@105
|
680 |
|
|
dvander@105
|
681 |
/* pop the AMX stack. do not check the margins. |
|
dvander@105
|
682 |
* Note that this is not a true macro - we don't bother to |
|
dvander@105
|
683 |
* set ALT here because nothing will be using it. |
|
dvander@105
|
684 |
*/ |
|
dvander@105
|
685 |
//lea edi, [edi+ecx*4+4] |
|
dvander@105
|
686 |
IA32_Lea_Reg_DispRegMultImm8(jit, AMX_REG_STK, AMX_REG_STK, REG_ECX, SCALE4, 4); |
|
dvander@105
|
687 |
|
|
dvander@105
|
688 |
//ret |
|
dvander@105
|
689 |
IA32_Return(jit); |
|
dvander@105
|
690 |
} |
|
dvander@105
|
691 |
|