singrdk/base/Kernel/Native/ix64/halprocessor.asm

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2008-11-17 18:29:00 -05:00
;; ----------------------------------------------------------------------------
;;
;; Copyright (c) Microsoft Corporation. All rights reserved.
;;
;; ----------------------------------------------------------------------------
;*******************************************************************************
;*******************************************************************************
;public g_GetCurrentProcessor@Class_Microsoft_Singularity_Processor@@SAPEAU1@XZ
include hal.inc
.code
?g_InitFpu@Class_Microsoft_Singularity_Processor@@SAXXZ proc frame
PrologPush rbp
SetFramePointer rbp
.endprolog
fninit;
mov rax, 37eh;
push rax;
fldcw [esp];
pop rax;
;; Epilogue
mov rsp, rbp
pop rbp;
ret;
?g_InitFpu@Class_Microsoft_Singularity_Processor@@SAXXZ endp
?g_ClearFpuStatus@Class_Microsoft_Singularity_Processor@@SAXXZ proc frame
PrologPush rbp
SetFramePointer rbp
.endprolog
fnclex;
;; Epilogue
mov rsp, rbp
pop rbp;
ret;
?g_ClearFpuStatus@Class_Microsoft_Singularity_Processor@@SAXXZ endp
?g_EnterRing3@Class_Microsoft_Singularity_Processor@@SAXXZ proc
;;// int uc3 = SEGMENT_SELECTOR(GdtUC) + 3;
;;// int ud3 = SEGMENT_SELECTOR(GdtUD) + 3;
;;// int uf3 = SEGMENT_SELECTOR(GdtPF) + 3; // for the moment, share UF and PF
;;// TODO: get rid of hexadecimal constants below
push rdx
mov rcx, rsp
mov rdx, ring3
db 0fh;
db 35h; ;;//sysexit
ring3:
pop rdx
mov cx, ss
mov ds, cx
mov es, cx
mov ecx, 38h + 3 ;;// SEGMENT_SELECTOR(GdtPF) + 3
mov fs, cx
ret
?g_EnterRing3@Class_Microsoft_Singularity_Processor@@SAXXZ endp
?g_ReadFpuStatus@Class_Microsoft_Singularity_Processor@@SAIXZ proc frame
PrologPush rbp
SetFramePointer rbp
.endprolog
xor rax,rax;
push rax;
fnstsw [rsp];
pop rax;
;; Epilogue
mov rsp, rbp
pop rbp;
ret;
?g_ReadFpuStatus@Class_Microsoft_Singularity_Processor@@SAIXZ endp
?g_GetCS proc
mov rax, cs
?g_GetCS endp
?g_GetCr3@Class_Microsoft_Singularity_Processor@@SAIXZ proc
mov rax, cr3
ret
?g_GetCr3@Class_Microsoft_Singularity_Processor@@SAIXZ endp
?g_GetCycleCount@Class_Microsoft_Singularity_Processor@@SA_KXZ proc frame
PrologPush rbp
SetFramePointer rbp
.endprolog
rdtsc; reads counter into edx:ecx (32-bits each)
shl rdx, 32
or rax,rdx ;; make it a 64-bit result
;; Epilogue
mov rsp, rbp
pop rbp;
ret;
?g_GetCycleCount@Class_Microsoft_Singularity_Processor@@SA_KXZ endp
?g_GetFramePointer@Class_Microsoft_Singularity_Processor@@SAPEAUuintPtr@@XZ proc
mov rax, rbp
ret
?g_GetFramePointer@Class_Microsoft_Singularity_Processor@@SAPEAUuintPtr@@XZ endp
?g_MpCallEntryPoint@Class_Microsoft_Singularity_Processor@@SAXPEAUuintPtr@@@Z proc
mov rax, rcx;
call rax;
ret
?g_MpCallEntryPoint@Class_Microsoft_Singularity_Processor@@SAXPEAUuintPtr@@@Z endp
;__declspec(naked)
;UIntPtr Class_Microsoft_Singularity_Processor::g_GetStackPointer()
?g_GetStackPointer@Class_Microsoft_Singularity_Processor@@SAPEAUuintPtr@@XZ proc
mov rax, rsp;
ret;
?g_GetStackPointer@Class_Microsoft_Singularity_Processor@@SAPEAUuintPtr@@XZ endp
;
; void Class_Microsoft_Singularity_Processor::g_Out(uint16 port, int value)
;
?g_Out@Class_Microsoft_Singularity_Processor@@SAXGH@Z proc
mov eax, edx
mov dx, cx
out dx, eax
ret
?g_Out@Class_Microsoft_Singularity_Processor@@SAXGH@Z endp
end