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fixing a bug did write end code for frame pointer that we do not have

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tempary fix, we can not optimize code so good yet. so if it more that 4 register same time we are using own frame, ebx is working as our ebp for we already resvert  the ebp 

svn path=/trunk/; revision=25497
This commit is contained in:
Magnus Olsen 2007-01-17 16:23:39 +00:00
parent af42a0cc24
commit 65747168ef
1 changed files with 28 additions and 10 deletions
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30
rosapps/devutils/cputointel/ConvertToIA32Process.c
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@ -19,17 +19,14 @@ CPU_INT ConvertToIntelProcess( FILE *outfp, CPU_INT eax, CPU_INT ebp,
CPU_UNINT tmp; CPU_UNINT tmp;
CPU_INT setup_ebp = 0 ; /* 0 = no, 1 = yes */ CPU_INT setup_ebp = 0 ; /* 0 = no, 1 = yes */
if (HowManyRegInUse > 8) /* Fixme at moment we can not optimze code */
//if (HowManyRegInUse > 9)
if (HowManyRegInUse > 4)
{ {
setup_ebp =1; /* we will use ebx as ebp */ setup_ebp =1; /* we will use ebx as ebp */
stack = HowManyRegInUse * regbits; stack = HowManyRegInUse * regbits;
} }
fprintf(outfp,"BITS 32\n"); fprintf(outfp,"BITS 32\n");
fprintf(outfp,"GLOBAL _main\n"); fprintf(outfp,"GLOBAL _main\n");
fprintf(outfp,"SECTION .text\n\n"); fprintf(outfp,"SECTION .text\n\n");
@ -45,6 +42,19 @@ CPU_INT ConvertToIntelProcess( FILE *outfp, CPU_INT eax, CPU_INT ebp,
fprintf(outfp,"mov ebx,esp\n"); fprintf(outfp,"mov ebx,esp\n");
fprintf(outfp,"sub esp, %d ; Alloc %d bytes for reg\n\n",stack,stack); fprintf(outfp,"sub esp, %d ; Alloc %d bytes for reg\n\n",stack,stack);
} }
else
{
/*
0 EAX
1 ECX
2 EDX
5 EBX
6 ESP
7 EBP
8 ESI
9 EDI
*/
}
fprintf(outfp,"; Start the program \n"); fprintf(outfp,"; Start the program \n");
while (pMystart!=NULL) while (pMystart!=NULL)
@ -95,7 +105,12 @@ CPU_INT ConvertToIntelProcess( FILE *outfp, CPU_INT eax, CPU_INT ebp,
} }
else else
{ {
if (setup_ebp == 1)
fprintf(outfp,"mov dword [ebx - %d], %llu\n", tmp, pMystart->src); fprintf(outfp,"mov dword [ebx - %d], %llu\n", tmp, pMystart->src);
else
{
fprintf(outfp,"unsuported optimze should not happen it happen :(\n", tmp, pMystart->src);
}
} }
} }
} /* end pMyBrainAnalys->type & 8 */ } /* end pMyBrainAnalys->type & 8 */
@ -105,11 +120,14 @@ CPU_INT ConvertToIntelProcess( FILE *outfp, CPU_INT eax, CPU_INT ebp,
if (pMystart->op == OP_ANY_ret) if (pMystart->op == OP_ANY_ret)
{ {
if (pMyBrainAnalys->ptr_next == NULL) if (pMyBrainAnalys->ptr_next == NULL)
{
if (setup_ebp == 1)
{ {
fprintf(outfp,"\n; clean up after the frame \n"); fprintf(outfp,"\n; clean up after the frame \n");
fprintf(outfp,"mov esp, ebx\n"); fprintf(outfp,"mov esp, ebx\n");
fprintf(outfp,"pop ebx\n"); fprintf(outfp,"pop ebx\n");
} }
}
fprintf(outfp,"ret\n"); fprintf(outfp,"ret\n");
} }
pMystart = (PMYBrainAnalys) pMystart->ptr_next; pMystart = (PMYBrainAnalys) pMystart->ptr_next;