Cosmos/source/Cosmos.Debug.DebugStub/DebugStub.asm

; Generated at 6/12/2016 10:25:11 AM

DebugStub_CallerEBP dd 0
DebugStub_CallerEIP dd 0
DebugStub_CallerESP dd 0
DebugStub_TraceMode dd 0
DebugStub_DebugStatus dd 0
DebugStub_PushAllPtr dd 0
DebugStub_DebugBreakOnNextTrace dd 0
DebugStub_BreakEBP dd 0
DebugStub_CommandID dd 0


DebugStub_BreakOnAddress:
Pushad
Call DebugStub_ComReadEAX
Mov ECX, EAX
mov dword EAX, 0x0
Call DebugStub_ComReadAL
push dword EAX
Mov EBX, DebugStub_DebugBPs
shl dword EAX, 0x2
add dword EBX, EAX
Cmp ECX, 0
JNE near DebugStub_BreakOnAddress_Block1_End
Mov EDI, [EBX + 0]
mov byte AL, 0x90
Mov [EDI + 0], AL
Jmp DebugStub_BreakOnAddress_DontSetBP

DebugStub_BreakOnAddress_Block1_End:
Mov [EBX + 0], ECX
Mov EDI, [EBX + 0]
mov byte AL, 0xCC
Mov [EDI + 0], AL

DebugStub_BreakOnAddress_DontSetBP:
pop dword EAX
mov dword ECX, 0x100

DebugStub_BreakOnAddress_FindBPLoop:
dec dword ECX
Mov EBX, DebugStub_DebugBPs
Mov EAX, ECX
shl dword EAX, 0x2
add dword EBX, EAX
Mov EAX, [EBX + 0]
Cmp EAX, 0
JE near DebugStub_BreakOnAddress_Block2_End
inc dword ECX
Mov [DebugStub_MaxBPId], ECX
Jmp DebugStub_BreakOnAddress_Continue

DebugStub_BreakOnAddress_Block2_End:
Cmp ECX, 0
JNE near DebugStub_BreakOnAddress_Block3_End
Jmp DebugStub_BreakOnAddress_FindBPLoopExit

DebugStub_BreakOnAddress_Block3_End:
Jmp DebugStub_BreakOnAddress_FindBPLoop

DebugStub_BreakOnAddress_FindBPLoopExit:
Mov dword [DebugStub_MaxBPId], 0

DebugStub_BreakOnAddress_Continue:

DebugStub_BreakOnAddress_Exit:
Popad
mov dword [static_field__Cosmos_Core_INTs_mLastKnownAddress], DebugStub_BreakOnAddress_Exit
Ret


DebugStub_SetINT3:
Pushad
Call DebugStub_ComReadEAX
Mov EDI, EAX
mov byte AL, 0xCC
Mov [EDI + 0], AL

DebugStub_SetINT3_Exit:
Popad
mov dword [static_field__Cosmos_Core_INTs_mLastKnownAddress], DebugStub_SetINT3_Exit
Ret


DebugStub_ClearINT3:
Pushad
Call DebugStub_ComReadEAX
Mov EDI, EAX
mov byte AL, 0x90
Mov [EDI + 0], AL

DebugStub_ClearINT3_Exit:
Popad
mov dword [static_field__Cosmos_Core_INTs_mLastKnownAddress], DebugStub_ClearINT3_Exit
Ret


DebugStub_Executing:
MOV EAX, DR6
and dword EAX, 0x4000
Cmp EAX, 0x4000
JNE near DebugStub_Executing_Block1_End
and dword EAX, 0xBFFF
MOV DR6, EAX
Call DebugStub_ResetINT1_TrapFLAG
Call DebugStub_Break
Jmp DebugStub_Executing_Normal

DebugStub_Executing_Block1_End:
Mov EAX, [DebugStub_CallerEIP]
Cmp EAX, [DebugStub_AsmBreakEIP]
JNE near DebugStub_Executing_Block2_End
Call DebugStub_DoAsmBreak
Jmp DebugStub_Executing_Normal

DebugStub_Executing_Block2_End:
Mov EAX, [DebugStub_MaxBPId]
Cmp EAX, 0
JNE near DebugStub_Executing_Block3_End
Jmp DebugStub_Executing_SkipBPScan

DebugStub_Executing_Block3_End:
Mov EAX, [DebugStub_CallerEIP]
Mov EDI, DebugStub_DebugBPs
Mov ECX, [DebugStub_MaxBPId]
repne scasd
JNE near DebugStub_Executing_Block4_End
Call DebugStub_Break
Jmp DebugStub_Executing_Normal

DebugStub_Executing_Block4_End:

DebugStub_Executing_SkipBPScan:
Cmp dword [DebugStub_DebugBreakOnNextTrace], DebugStub_Const_StepTrigger_Into
JNE near DebugStub_Executing_Block5_End
Call DebugStub_Break
Jmp DebugStub_Executing_Normal

DebugStub_Executing_Block5_End:
Mov EAX, [DebugStub_CallerEBP]
Cmp dword [DebugStub_DebugBreakOnNextTrace], DebugStub_Const_StepTrigger_Over
JNE near DebugStub_Executing_Block6_End
Cmp EAX, [DebugStub_BreakEBP]
JB near DebugStub_Executing_Block7_End
Call DebugStub_Break

DebugStub_Executing_Block7_End:
Jmp DebugStub_Executing_Normal

DebugStub_Executing_Block6_End:
Cmp dword [DebugStub_DebugBreakOnNextTrace], DebugStub_Const_StepTrigger_Out
JNE near DebugStub_Executing_Block8_End
Cmp EAX, [DebugStub_BreakEBP]
JBE near DebugStub_Executing_Block9_End
Call DebugStub_Break

DebugStub_Executing_Block9_End:
Jmp DebugStub_Executing_Normal

DebugStub_Executing_Block8_End:

DebugStub_Executing_Normal:
Cmp dword [DebugStub_TraceMode], DebugStub_Const_Tracing_On
JNE near DebugStub_Executing_Block10_End
Call DebugStub_SendTrace

DebugStub_Executing_Block10_End:

DebugStub_Executing_CheckForCmd:
mov word DX, 0x5
Call DebugStub_ReadRegister
Test AL, 1
JE near DebugStub_Executing_Block11_End
Call DebugStub_ProcessCommand
Jmp DebugStub_Executing_CheckForCmd

DebugStub_Executing_Block11_End:

DebugStub_Executing_Exit:
mov dword [static_field__Cosmos_Core_INTs_mLastKnownAddress], DebugStub_Executing_Exit
Ret


DebugStub_Break:
Mov dword [DebugStub_DebugBreakOnNextTrace], DebugStub_Const_StepTrigger_None
Mov dword [DebugStub_BreakEBP], 0
Mov dword [DebugStub_DebugStatus], DebugStub_Const_Status_Break
Call DebugStub_SendTrace

DebugStub_Break_WaitCmd:
Call DebugStub_ProcessCommand
Cmp AL, DebugStub_Const_Vs2Ds_Continue
JE near DebugStub_Break_Done
Cmp AL, DebugStub_Const_Vs2Ds_AsmStepInto
JNE near DebugStub_Break_Block1_End
Call DebugStub_SetINT1_TrapFLAG
Jmp DebugStub_Break_Done

DebugStub_Break_Block1_End:
Cmp AL, DebugStub_Const_Vs2Ds_SetAsmBreak
JNE near DebugStub_Break_Block2_End
Call DebugStub_SetAsmBreak
Call DebugStub_AckCommand
Jmp DebugStub_Break_WaitCmd

DebugStub_Break_Block2_End:
Cmp AL, DebugStub_Const_Vs2Ds_StepInto
JNE near DebugStub_Break_Block3_End
Mov dword [DebugStub_DebugBreakOnNextTrace], DebugStub_Const_StepTrigger_Into
Mov [DebugStub_BreakEBP], EAX
Jmp DebugStub_Break_Done

DebugStub_Break_Block3_End:
Cmp AL, DebugStub_Const_Vs2Ds_StepOver
JNE near DebugStub_Break_Block4_End
Mov dword [DebugStub_DebugBreakOnNextTrace], DebugStub_Const_StepTrigger_Over
Mov EAX, [DebugStub_CallerEBP]
Mov [DebugStub_BreakEBP], EAX
Jmp DebugStub_Break_Done

DebugStub_Break_Block4_End:
Cmp AL, DebugStub_Const_Vs2Ds_StepOut
JNE near DebugStub_Break_Block5_End
Mov dword [DebugStub_DebugBreakOnNextTrace], DebugStub_Const_StepTrigger_Out
Mov EAX, [DebugStub_CallerEBP]
Mov [DebugStub_BreakEBP], EAX
Jmp DebugStub_Break_Done

DebugStub_Break_Block5_End:
Jmp DebugStub_Break_WaitCmd

DebugStub_Break_Done:
Call DebugStub_AckCommand
Mov dword [DebugStub_DebugStatus], DebugStub_Const_Status_Run

DebugStub_Break_Exit:
mov dword [static_field__Cosmos_Core_INTs_mLastKnownAddress], DebugStub_Break_Exit
Ret