private void EmmitStaticIL(IRAssembly assembly, IRMethod meth, UskrContext context)
{
foreach (var instruction in meth.Body.Instructions)
{
context.Comment();
context.Comment(instruction.ToString());
context.Asm($"_{Utils.MD5(meth.Namespace)}_{instruction.Offset}: ");
if (Handlers.ContainsKey(instruction.OpCode.Code))
{
Handlers[instruction.OpCode.Code].Handel(assembly, meth, context, instruction);
}
else
{
Logger.Error($"Missing Opcode Handler: {instruction}");
}
}
}
public void Run(ref UskrContext context)
{
context.Asm("BITS 32");
context.Asm("extern _70750F0AFB2995CC120C9F760274C2F9");
context.Asm("extern _D271CF90018F771C18C5300730392647");
context.Asm("extern _753F891548C9A78650968C6000A46A20");
context.Asm("extern _097AAAA262E390E5C65A88581F0AA86C");
context.Asm("extern _D45553A71DE6C0DA793315EA0AE8046F");
context.Asm("extern _79A0D7AA956F5CBEDDED49D524FEF1A9");
context.Asm("extern _C90C9B011121E670A95DB0CFD8646F31");
context.Asm("extern _82A2D11E45ADDFD2AFAF15C2B0B66DFB");
context.Asm("extern _C0F99D210869122397E9119A6525F919");
context.Asm("extern _895EED2DB3B152639CA74BFD32090CA8");
context.Asm("extern _B1437D3A3811567E68E42B4C936884D3");
context.Asm("extern _824A1F21C8BF8B473BD2718A24E19467");
context.Asm("extern _F6C910BB9661F7C73F659FA7555BF805");
context.Asm("extern _06503F685ABE5A9A77C932F5BCBA1EB5");
context.Asm("extern _D298A2D4E5657EEA7EB17452D6F2E617");
context.Asm("extern _0519DBB93E219BC38CA0EA97FA3F7735");
context.Asm("extern _A8E19AA8CAD25F13836DC967107BF5E1");
context.Asm("extern _0068756F97648B1BD3982A80BE6B637C");
context.Asm("extern _12DB08848180744E59A76B7AC4068D25");
context.Asm("extern _9FDF3242FCB51E0F4FDEE7487ABCD2D9");
context.Asm("extern _71565D88FA0B0839698FCAD8CFA49FCE");
context.Asm("extern _BE6A5B585E77DC19CD2D96A4D32CBBE3");
context.Asm("extern _E4910B1D8FA2DD7EF9141D6AD4F9A2A3");
context.Asm("extern _EC2DCD7CA533B263D96736F1FA0EFD77");
context.Asm("extern _4117CFF8D48D289B1BA88743B2A387E1");
context.Asm("extern _9A40F757A64B441EEAE1E4F27A634412");
context.Asm("extern _72E6006D3F84380F9874EDDC378FD0D4");
context.Asm("extern _5D9DD1B69A761CF46A2B56AA4F3F8746");
context.Asm("extern _C564E70E69C96050C36C7C021C5F3884");
context.Asm("extern _6C0EB5335A22AD8A2D73C656610D7512");
context.Asm("extern _2DADF0725911C3D2A9971653F781E74B");
context.Asm("extern _A1B50173998F9101ACCCDADC83142A77");
context.Asm("extern _0E7A761469DD4A340DFAFA47A84C312C");
context.Asm("extern _F0B4BF4803A02357ABCAEE06F52FF195");
context.Asm("extern _38C16E7E545AF70C2BD394833111F831");
context.Asm("extern _229AA65FCE166B248E8ED157A3B0FF0A");
/* context.Asm(
* "global start\nstart:\n mov [_FAAF0DE554FAF3091BE39267E23BF3B8], dword start_of_heap\n mov esp, sys_stack ; This points the stack to our new stack area\n jmp stublet\n\n; This part MUST be 4byte aligned, so we solve that issue using 'ALIGN 4'\nALIGN 4\nmboot:\n ; Multiboot macros to make a few lines later more readable\n MULTIBOOT_PAGE_ALIGN equ 1<<0\n MULTIBOOT_MEMORY_INFO equ 1<<1\n MULTIBOOT_AOUT_KLUDGE equ 1<<16\n MULTIBOOT_HEADER_MAGIC equ 0x1BADB002\n MULTIBOOT_HEADER_FLAGS equ MULTIBOOT_PAGE_ALIGN | MULTIBOOT_MEMORY_INFO | MULTIBOOT_AOUT_KLUDGE\n MULTIBOOT_CHECKSUM equ -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS)\n EXTERN code, bss, end\n\n ; This is the GRUB Multiboot header. A boot signature\n dd MULTIBOOT_HEADER_MAGIC\n dd MULTIBOOT_HEADER_FLAGS\n dd MULTIBOOT_CHECKSUM\n \n ; AOUT kludge - must be physical addresses. Make a note of these:\n ; The linker script fills in the data for these ones!\n dd mboot\n dd code\n dd bss\n dd end\n dd start\n\n; This is an endless loop here. Make a note of this: Later on, we\n; will insert an 'extern _main', followed by 'call _main', right\n; before the 'jmp $'.\nstublet:\n extern kmain\n call _E5718F1DA4621EC9DDB27C7EF95C7BAE\n jmp $");
*
*/
Logger.Log($"Static Emmit: Kernel");
EmmitStatic(context.RuntimeKernel, context);
Logger.Log($"Static Emmit: UserSpace");
EmmitStatic(context.UserSpace, context);
//must be at top to prevent section overlaping
context.Comment();
context.Asm("section .data");
context.Comment();
EmmitGlobals(context.RuntimeKernel, context);
EmmitGlobals(context.UserSpace, context);
foreach (var gl in context.GlobalsExtra)
{
context.Asm($"global {gl.Key}");
context.Asm($"{gl.Key}: db {gl.Value}");
}
/* context.Asm("SECTION .bss\n resb 8192 ; This reserves 8KBytes of memory here\nsys_stack:");
* context.Asm(
* "SECTION .heap\n start_of_heap: \n resb 8192 ; This reserves 8KBytes of memory here");*/
}
private void EmmitStatic(IRAssembly assembly, UskrContext context)
{
context.Comment();
foreach (var method in assembly.Methods)
{
context.Comment(method.Identifier);
context.Comment($"{method.Namespace}: ");
if (method.CCall)
{
context.Asm($"Global _{method.Identifier}");
context.Asm($"_{method.Identifier}: ");
}
context.Asm($"Global _{Utils.MD5(method.Namespace)}");
context.Asm($"_{Utils.MD5(method.Namespace)}: ");
context.Asm("push ebp");
context.Asm("mov ebp,esp");
context.Asm(
$"sub esp, {16 + (method.Body.Variables.Count * 4 > 16 ? (method.Body.Variables.Count * 4) - 16 : 0)}");
//vmt logic
if (method.IsVirtual)
{
context.Asm($"cmp ebx, 0");
context.Asm($"je _{Utils.MD5(method.Namespace)}_start");
for (var i = 0; i < context.VirtualTypes.Count; i++)
{
var type = context.VirtualTypes[i];
context.Comment(type.Name);
context.Comment();
if (type.BaseType.Name == method.BaseType)
{
context.Asm($"mov eax, [ebp+8]");
context.Asm($"mov ebx, [eax]");
context.Asm($"cmp ebx, {i}");
context.Asm($"jne _{Utils.MD5(method.Namespace)}_{type.Name}_false");
context.Asm($"_{Utils.MD5(method.Namespace)}_{type.Name}_true: ");
foreach (var def in type.Methods)
{
if (def.Name == method.Identifier)
{
context.Comment(def.FullName);
context.Asm($"mov ebx, 0");
context.Asm($"call _{Utils.MD5(def.FullName)}");
break;
}
}
context.Asm($"jmp _{Utils.MD5(method.Namespace)}_exit");
context.Asm($"_{Utils.MD5(method.Namespace)}_{type.Name}_false: ");
}
}
context.Asm($"jmp _{Utils.MD5(method.Namespace)}_exit");
context.Asm($"_{Utils.MD5(method.Namespace)}_start: ");
}
EmmitStaticIL(assembly, method, context);
if (method.IsVirtual)
{
context.Asm($"_{Utils.MD5(method.Namespace)}_exit: ");
context.Asm($"leave");
context.Asm($"ret");
}
context.Comment();
}
}
public void Handel(IRAssembly assembly, IRMethod meth, UskrContext context, Instruction instruction)
{
context.Comment("NOP");
}