matthew/The-Powder-Toy
Archived
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Better checking for coordinates in GET instruction, empty particles are id'd -1

Browse Source
This commit is contained in:
Simon Robertshaw 2013-02-02 16:46:50 +00:00
parent 316e940e53
commit f7b734de0b
1 changed files with 19 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

33
src/pim/X86Native.cpp
View File

@ -119,21 +119,25 @@ namespace pim
intptr_t partsArray = (intptr_t)sim->pmap; intptr_t partsArray = (intptr_t)sim->pmap;
emit("8B 06"); //mov eax, [esi] emit("8B 06"); //mov eax, [esi]
emit("8B 4E 04"); //mov ecx, [esi+4] emit("8B 4E 04"); //mov ecx, [esi+4]
emit("81 F9"); //cmp ecx, XRES emit("81 F9"); //cmp ecx, XRES //Push -1 if y is out of range
emitConstantD((int)XRES); emitConstantD((int)XRES);
emit("7D 22"); //|--< //jge 34 emit("7D 2C"); //|--< //jge 34
emit("74 20"); //|--< //jz 32 emit("83 F9 00"); //| //cmp ecx, 0
emit("3D"); //| //cmp eax, YRES emit("78 27"); //|--< //js 32
emitConstantD((int)YRES); //| emit("3D"); //| //cmp eax, YRES //Push -1 if x is out of range
emit("7D 19"); //|--< //jge 25 emitConstantD((int)YRES); //|
emit("74 17"); //|--< //jz 23 emit("7D 20"); //|--< //jge 25
emit("83 F8 00"); //| //cmp eax, 0
emit("78 1B"); //|--< //js 23
emit("69 C0"); //| //imul eax, 612 emit("69 C0"); //| //imul eax, 612
emitConstantD((int)XRES); //| emitConstantD((int)XRES); //|
emit("01 C8"); //| //add eax, ecx emit("01 C8"); //| //add eax, ecx
emit("8B 04 85"); //| //mov eax, [eax*4+pmap] emit("8B 04 85"); //| //mov eax, [eax*4+pmap]
emitConstantP((int)partsArray); //| emitConstantP((int)partsArray); //|
emit("C1 F8 08"); //| //sar eax, 8 emit("85 C0"); //| //test eax, eax //Push 0 if location if empty
emit("89 46 04"); //| //mov [esi+4], eax #Copy eax onto stack emit("74 08"); //| |-< //je +5
emit("C1 F8 08"); //| | //sar eax, 8
emit("89 46 04"); //| | //mov [esi+4], eax #Copy eax onto stack
emit("EB 07"); //| |-< //jmp +7 emit("EB 07"); //| |-< //jmp +7
emit("C7 46 04 FF FF FF FF"); //L-+-> //mov [esi+4], -1 emit("C7 46 04 FF FF FF FF"); //L-+-> //mov [esi+4], -1
emit("83 C6 04"); // L-> //add esi, 4 emit("83 C6 04"); // L-> //add esi, 4
@ -145,8 +149,9 @@ namespace pim
emit("8B 06"); //mov eax, [esi] #Load index from stack emit("8B 06"); //mov eax, [esi] #Load index from stack
emit("3D"); //cmp eax, NPART emit("3D"); //cmp eax, NPART
emitConstantD((int)NPART); emitConstantD((int)NPART);
emit("7D 23"); //|--< //jge 31 emit("7D 26"); //|--< //jge 31
emit("74 21"); //|--< //jz 29 emit("83 F8 00"); //| //cmp eax, 0
emit("78 21"); //|--< //js 29
emit("C1 E0 03"); //| //sal eax, 3 #Shift index left (multiply by 8) emit("C1 E0 03"); //| //sal eax, 3 #Shift index left (multiply by 8)
emit("8D 14 C5 00 00 00 00"); //| //lea edx, [eax*8] #Mutiply by 8 again and copy into edx //Size of 56 is represented by (1*(8^2))-(1*8) emit("8D 14 C5 00 00 00 00"); //| //lea edx, [eax*8] #Mutiply by 8 again and copy into edx //Size of 56 is represented by (1*(8^2))-(1*8)
emit("89 D1"); //| //mov ecx, edx emit("89 D1"); //| //mov ecx, edx
@ -291,7 +296,7 @@ namespace pim
void X86Native::emitPlaceholder(int virtualAddress) void X86Native::emitPlaceholder(int virtualAddress)
{ {
placeholders[nativeRom.size()] = virtualAddress; placeholders[nativeRom.size()] = virtualAddress;
emit((int)0); emitConstantD((int)0);
} }
void X86Native::emitCall(intptr_t objectPtr, intptr_t functionAddress, int stackSize) void X86Native::emitCall(intptr_t objectPtr, intptr_t functionAddress, int stackSize)