stack_operations.py revision 5081:2ccce8600a9d 
1# Copyright (c) 2007 The Hewlett-Packard Development Company
2# All rights reserved.
3#
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42# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
43# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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45# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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53#
54# Authors: Gabe Black
55
56microcode = '''
57def macroop POP_R {
58    # Make the default data size of pops 64 bits in 64 bit mode
59    .adjust_env oszIn64Override
60
61    ld reg, ss, [1, t0, rsp]
62    addi rsp, rsp, dsz
63};
64
65def macroop POP_M {
66    # Make the default data size of pops 64 bits in 64 bit mode
67    .adjust_env oszIn64Override
68
69    ld t1, ss, [1, t0, rsp]
70    addi rsp, rsp, dsz
71    st t1, seg, sib, disp
72};
73
74def macroop POP_P {
75    # Make the default data size of pops 64 bits in 64 bit mode
76    .adjust_env oszIn64Override
77
78    rdip t7
79    ld t1, ss, [1, t0, rsp]
80    addi rsp, rsp, dsz
81    st t1, seg, riprel, disp
82};
83
84def macroop PUSH_R {
85    # Make the default data size of pops 64 bits in 64 bit mode
86    .adjust_env oszIn64Override
87
88    # This needs to work slightly differently from the other versions of push
89    # because the -original- version of the stack pointer is what gets pushed
90    st reg, ss, [1, t0, rsp], "-env.dataSize"
91    subi rsp, rsp, dsz
92};
93
94def macroop PUSH_I {
95    # Make the default data size of pops 64 bits in 64 bit mode
96    .adjust_env oszIn64Override
97
98    limm t1, imm
99    subi rsp, rsp, dsz
100    st t1, ss, [1, t0, rsp]
101};
102
103def macroop PUSH_M {
104    # Make the default data size of pops 64 bits in 64 bit mode
105    .adjust_env oszIn64Override
106
107    ld t1, seg, sib, disp
108    subi rsp, rsp, dsz
109    st t1, ss, [1, t0, rsp]
110};
111
112def macroop PUSH_P {
113    # Make the default data size of pops 64 bits in 64 bit mode
114    .adjust_env oszIn64Override
115
116    rdip t7
117    ld t1, seg, riprel, disp
118    subi rsp, rsp, dsz
119    st t1, ss, [1, t0, rsp]
120};
121
122def macroop PUSHA {
123    st rax, ss, [1, t0, rsp], "-0 * env.dataSize"
124    st rcx, ss, [1, t0, rsp], "-1 * env.dataSize"
125    st rdx, ss, [1, t0, rsp], "-2 * env.dataSize"
126    st rbx, ss, [1, t0, rsp], "-3 * env.dataSize"
127    st rsp, ss, [1, t0, rsp], "-4 * env.dataSize"
128    st rbp, ss, [1, t0, rsp], "-5 * env.dataSize"
129    st rsi, ss, [1, t0, rsp], "-6 * env.dataSize"
130    st rdi, ss, [1, t0, rsp], "-7 * env.dataSize"
131    subi rsp, rsp, "8 * env.dataSize"
132};
133
134def macroop POPA {
135    ld rdi, ss, [1, t0, rsp], "0 * env.dataSize"
136    ld rsi, ss, [1, t0, rsp], "1 * env.dataSize"
137    ld rbp, ss, [1, t0, rsp], "2 * env.dataSize"
138    ld rbx, ss, [1, t0, rsp], "4 * env.dataSize"
139    ld rdx, ss, [1, t0, rsp], "5 * env.dataSize"
140    ld rcx, ss, [1, t0, rsp], "6 * env.dataSize"
141    ld rax, ss, [1, t0, rsp], "7 * env.dataSize"
142    addi rsp, rsp, "8 * env.dataSize"
143};
144
145def macroop LEAVE {
146    # Make the default data size of pops 64 bits in 64 bit mode
147    .adjust_env oszIn64Override
148
149    mov rsp, rsp, rbp
150    ld rbp, ss, [1, t0, rsp]
151    addi rsp, rsp, dsz
152};
153'''
154#let {{
155#    class ENTER(Inst):
156#	"GenFault ${new UnimpInstFault}"
157#}};
158