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comparison contextSwitch.s @ 173:bfaebdf60df3

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coreLoop: All written variables are now on local stack or in seperate cache line
author Merten Sach <msach@mailbox.tu-berlin.de>
date Tue, 20 Dec 2011 15:39:30 +0100
parents 9ddbb071142d
children
comparison
equal deleted inserted replaced
3:bbdbf025a867 6:8e2ed09f4581
29 * 0x20 nextInstrPt 29 * 0x20 nextInstrPt
30 * 0x30 coreLoopFramePtr 30 * 0x30 coreLoopFramePtr
31 * 0x38 coreLoopStackPtr 31 * 0x38 coreLoopStackPtr
32 * 32 *
33 * _VMSMasterEnv offsets: 33 * _VMSMasterEnv offsets:
34 * 0x48 coreLoopReturnPt 34 * 0x148 coreLoopReturnPt
35 * 0x54 masterLock 35 * 0x00 masterLock
36 */ 36 */
37 .globl switchToVP 37 .globl switchToVP
38 switchToVP: 38 switchToVP:
39 #VirtProcr in %rdi 39 #VirtProcr in %rdi
40 movq %rsp , 0x38(%rdi) #save core loop stack pointer 40 movq %rsp , 0x38(%rdi) #save core loop stack pointer
54 * 0x20 nextInstrPt 54 * 0x20 nextInstrPt
55 * 0x30 coreLoopFramePtr 55 * 0x30 coreLoopFramePtr
56 * 0x38 coreLoopStackPtr 56 * 0x38 coreLoopStackPtr
57 * 57 *
58 * _VMSMasterEnv offsets: 58 * _VMSMasterEnv offsets:
59 * 0x48 coreLoopReturnPt 59 * 0x148 coreLoopReturnPt
60 * 0x54 masterLock 60 * 0x00 masterLock
61 */ 61 */
62 .globl switchToCoreLoop 62 .globl switchToCoreLoop
63 switchToCoreLoop: 63 switchToCoreLoop:
64 #VirtProcr in %rdi 64 #VirtProcr in %rdi
65 movq $VPReturn , 0x20(%rdi) #store return address 65 movq $VPReturn , 0x20(%rdi) #store return address
67 movq %rbp , 0x18(%rdi) #save frame pointer 67 movq %rbp , 0x18(%rdi) #save frame pointer
68 movq 0x38(%rdi), %rsp #restore stack pointer 68 movq 0x38(%rdi), %rsp #restore stack pointer
69 movq 0x30(%rdi), %rbp #restore frame pointer 69 movq 0x30(%rdi), %rbp #restore frame pointer
70 movq $_VMSMasterEnv, %rcx 70 movq $_VMSMasterEnv, %rcx
71 movq (%rcx) , %rcx 71 movq (%rcx) , %rcx
72 movq 0x48(%rcx), %rax #get CoreLoopStartPt 72 movq 0x148(%rcx), %rax #get CoreLoopStartPt
73 jmp *%rax #jmp to CoreLoop 73 jmp *%rax #jmp to CoreLoop
74 VPReturn: 74 VPReturn:
75 ret 75 ret
76 76
77 77
84 * 0x20 nextInstrPt 84 * 0x20 nextInstrPt
85 * 0x30 coreLoopFramePtr 85 * 0x30 coreLoopFramePtr
86 * 0x38 coreLoopStackPtr 86 * 0x38 coreLoopStackPtr
87 * 87 *
88 * _VMSMasterEnv offsets: 88 * _VMSMasterEnv offsets:
89 * 0x48 coreLoopReturnPt 89 * 0x148 coreLoopReturnPt
90 * 0x54 masterLock 90 * 0x00 masterLock
91 */ 91 */
92 .globl masterSwitchToCoreLoop 92 .globl masterSwitchToCoreLoop
93 masterSwitchToCoreLoop: 93 masterSwitchToCoreLoop:
94 #VirtProcr in %rdi 94 #VirtProcr in %rdi
95 movq $MasterReturn, 0x20(%rdi) #store return address 95 movq $MasterReturn, 0x20(%rdi) #store return address
97 movq %rbp , 0x18(%rdi) #save frame pointer 97 movq %rbp , 0x18(%rdi) #save frame pointer
98 movq 0x38(%rdi), %rsp #restore stack pointer 98 movq 0x38(%rdi), %rsp #restore stack pointer
99 movq 0x30(%rdi), %rbp #restore frame pointer 99 movq 0x30(%rdi), %rbp #restore frame pointer
100 movq $_VMSMasterEnv, %rcx 100 movq $_VMSMasterEnv, %rcx
101 movq (%rcx) , %rcx 101 movq (%rcx) , %rcx
102 movq 0x48(%rcx), %rax #get CoreLoopStartPt 102 movq 0x148(%rcx), %rax #get CoreLoopStartPt
103 movl $0x0 , 0x54(%rcx) #release lock 103 movl $0x0 , 0x00(%rcx) #release lock
104 jmp *%rax #jmp to CoreLoop 104 jmp *%rax #jmp to CoreLoop
105 MasterReturn: 105 MasterReturn:
106 ret 106 ret
107 107
108 108