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void fcn_00451801(int16_t *a1, int nbytes)
{
int t; /* esp + 8 */
int s; /* esp */
int u; /* esp + 4 */
uint32_t *edi = a1;
uint32_t *edx;
esi = nbytes;
t = (nbytes >> 1) & 1;
esi >>= 2;
eax = dw_47637c;
switch (eax) {
case 1:
for (eax = 0; eax < esi; eax++) {
edx = &edi[eax];
ecx = *edx;
ebx = ecx*2;
ecx &= 0x001f001f;
ebx &= 0xffc0ffc0;
*edx = ecx | ebx;
}
if (t == 0)
return;
eax = 0;
ax = *(int16_t*)edx;
ecx = eax * 2;
eax &= 0x1f;
ecx &= 0xffc0;
*(uint16_t*)edx = (uint16_t)(eax | ecx);
return;
case 2:
for (eax = 0; eax < esi; eax++) {
edx = &edi[eax];
ecx = *edx;
s = (ecx & 0x7c007c00) >> 10;
u = (ecx & 0x03e003e0) * 2;
ebx = (ecx & 0x001f001f) << 11;
ecx = s | u | ebx;
*edx = ecx;
}
if (t == 0)
return;
eax = 0;
ax = *(uint16_t*)edx;
s = (eax & 0x7c00) >> 10;
u = (eax & 0x03e0) * 2;
eax = (eax & 0x001f) << 11;
*(uint16_t)edx = (uint16_t)(eax | s | u);
return;
case 3:
for (eax = 0; eax < esi; eax++) {
edx = &edi[eax];
ecx = *edx;
ebx = (ecx & 0x78007800) >> 3;
ebp = (ecx & 0x03c003c0) >> 2;
ecx = (ecx & 0x001e001e) >> 1;
*edx = ecx | ebx | ebp;
}
if (s==0)
return;
eax = 0;
ax = *(uint16_t*)edx;
s = (eax & 0x7800) >> 3;
u = (eax & 0x03c0) >> 2;
ecx = (eax & 0x001e) >> 1;
*(uint16_t*)edx = (uint16_t)(s | u | ecx);
return;
default:
return;
}
}
struct spr_smp
{
char sig[4]; /* "SPR" or "SMP" */
int t1;
int t2;
int t3, t4; /* unused? */
struct {
int v1;
int v2, v3; /* unused? */
} t[];
};
void fcn_00450069(char *s)
{
if (strcmp(s, "SPR") == 0) {
int *t = (int*)s;
esi = t[5];
t[5] = s + 0x200 + t[2];
for (eax = 1; eax < t[1]; eax++) {
ebp = *(int*)(s + eax * 12 + 20);
esi += *(int*)(s + (eax - 1) * 12 + 20);
*(int*)(s + eax * 12 + 20) = esi;
esi = ebp;
}
}
if (strcmp(s, "SMP") == 0) {
int *t = (int*)s;
esi = t[5];
t[5] = s + t[2];
for (eax = 1; eax < t[1]; eax++) {
edx = eax *12;
ecx = s + edx;
ebp = *(int*)(ecx + 20);
edi = eax - 1;
edx = edi * 3;
edi = *(int*)(s + edx * 4 + 20);
esi += edi;
*(int*)(ecx + 0x14) = esi;
esi = ebp;
}
}
}
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