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[tpg/acess2.git] / Kernel / arch / x86_64 / proc.asm

diff --git a/Kernel/arch/x86_64/proc.asm b/Kernel/arch/x86_64/proc.asm
deleted file mode 100644 (file)
index f540b3b..0000000
--- a/Kernel/arch/x86_64/proc.asm
+++ /dev/null
@@ -1,148 +0,0 @@
-;
-;
-;
-%include "arch/x86_64/include/common.inc.asm"
-[BITS 64]
-[section .text]
-
-[extern Threads_Exit]
-
-[global GetRIP]
-GetRIP:
-       mov rax, [rsp]
-       ret
-
-[global NewTaskHeader]
-NewTaskHeader:
-       ; [rsp+0x00]: Thread
-       ; [rsp+0x08]: Function
-       ; [rsp+0x10]: Argument
-
-       mov rdi, [rsp+0x10]
-       mov rax, [rsp+0x8]
-       add rsp, 0x10   ; Reclaim stack space (thread/fcn)
-       xchg bx, bx
-       call rax
-       
-       ; Quit thread with RAX as the return code
-       xor rdi, rdi
-       mov rsi, rax
-       call Threads_Exit
-
-.hlt:
-       jmp .hlt
-
-[extern MM_Clone]
-[extern MM_DumpTables]
-[global Proc_CloneInt]
-Proc_CloneInt:
-       PUSH_GPR
-       ; Save RSP
-       mov [rdi], rsp
-       call MM_Clone
-       ; Save CR3
-       mov rsi, [rsp+0x30]     ; Saved version of RSI
-       mov [rsi], rax
-       ; Undo the PUSH_GPR
-       add rsp, 0x80
-       mov rax, .newTask
-       ret
-.newTask:
-;      mov rdi, 0
-;      mov rsi, 0x800000000000
-;      call MM_DumpTables
-       POP_GPR
-       xor eax, eax
-       ret
-
-[global SaveState]
-SaveState:
-       ; Save regs to RSI
-       add rsi, 0x80
-       SAVE_GPR rsi
-       ; Save return addr
-       mov rax, [rsp]
-       mov [rsi], rax
-       ; Return RSI as the RSP value
-       sub rsi, 0x80
-       mov [rdi], rsi
-       ; Check for 
-       mov rax, .restore
-       ret
-.restore:
-       ; RSP = RSI now
-       POP_GPR
-       mov rax, [rsp]
-       mov rsp, [rsp-0x60]     ; Restore RSP from the saved value
-       mov [rsp], rax  ; Restore return address
-       xor eax, eax
-       ret
-
-[global SwitchTasks]
-; rdi = New RSP
-; rsi = Old RSP save loc
-; rdx = New RIP
-; rcx = Old RIP save loc
-; r8 = CR3
-SwitchTasks:
-       PUSH_GPR
-       
-       ; Save state RIP and RSP
-       lea rax, [rel .restore]
-       mov [rcx], rax
-       mov [rsi], rsp
-
-       ; Change CR3 if requested
-       test r8, r8
-       jz .setState
-       mov cr3, r8
-       
-       ; Make sure the stack is valid before jumping
-       invlpg [rdi-0x1000]
-       invlpg [rdi]
-       invlpg [rdi+0x1000]
-       
-       ; Go to new state
-.setState:
-       mov rsp, rdi
-       jmp rdx
-
-       ; Restore point for saved state
-.restore:
-       POP_GPR
-       xor eax, eax    ; Return zero
-       ret
-
-[global Proc_InitialiseSSE]
-Proc_InitialiseSSE:
-       mov rax, cr4
-       or ax, (1 << 9)|(1 << 10)       ; Set OSFXSR and OSXMMEXCPT
-       mov cr4, rax
-       mov rax, cr0
-       and ax, ~(1 << 2)       ; Clear EM
-       or rax, (1 << 1)        ; Set MP
-       mov rax, cr0
-       ret
-[global Proc_DisableSSE]
-Proc_DisableSSE:
-       mov rax, cr0
-       or ax, 1 << 3   ; Set TS
-       mov cr0, rax
-       ret
-[global Proc_EnableSSE]
-Proc_EnableSSE:
-       mov rax, cr0
-       and ax, ~(1 << 3)       ; Clear TS
-       mov cr0, rax
-       ret
-
-[global Proc_SaveSSE]
-Proc_SaveSSE:
-       fxsave [rdi]
-       ret
-[global Proc_RestoreSSE]
-Proc_RestoreSSE:
-       fxrstor [rdi]
-       ret
-
-; vim: ft=nasm