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root/cebix/SheepShaver/src/thunks.cpp
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Comparing SheepShaver/src/thunks.cpp (file contents):
Revision 1.2 by gbeauche, 2003-12-04T23:37:35Z vs.
Revision 1.4 by gbeauche, 2004-01-15T23:28:59Z

# Line 96 | Line 96 | uint32 NativeOpcode(int selector)
96   struct native_op_t {
97          uint32 tvect;
98          uint32 func;
99 +        SheepRoutineDescriptor *desc;
100   };
101   static native_op_t native_op[NATIVE_OP_MAX];
102  
# Line 127 | Line 128 | bool ThunksInit(void)
128   #else
129   #error "FIXME: define NativeOp for your platform"
130   #endif
131 +        // FIXME: add GetResource() and friends for completeness
132          DEFINE_NATIVE_OP(NATIVE_PATCH_NAME_REGISTRY, DoPatchNameRegistry);
133          DEFINE_NATIVE_OP(NATIVE_VIDEO_INSTALL_ACCEL, VideoInstallAccel);
134          DEFINE_NATIVE_OP(NATIVE_VIDEO_VBL, VideoVBL);
# Line 148 | Line 150 | bool ThunksInit(void)
150          DEFINE_NATIVE_OP(NATIVE_MAKE_EXECUTABLE, MakeExecutable);
151   #undef DEFINE_NATIVE_OP
152   #endif
153 +
154 +        // Initialize routine descriptors (if TVECT exists)
155 +        for (int i = 0; i < NATIVE_OP_MAX; i++) {
156 +                uint32 tvect = native_op[i].tvect;
157 +                if (tvect)
158 +                        native_op[i].desc = new SheepRoutineDescriptor(0, tvect);
159 +        }
160 +
161          return true;
162   }
163  
164  
165   /*
166 + *  Delete generated thunks
167 + */
168 +
169 + void ThunksExit(void)
170 + {
171 +        for (int i = 0; i < NATIVE_OP_MAX; i++) {
172 +                SheepRoutineDescriptor *desc = native_op[i].desc;
173 +                if (desc)
174 +                        delete desc;
175 +        }
176 + }
177 +
178 +
179 + /*
180   *  Return the native function descriptor (TVECT)
181   */
182  
# Line 179 | Line 203 | uint32 NativeFunction(int selector)
203  
204  
205   /*
206 + *  Return the routine descriptor address of the native function
207 + */
208 +
209 + uint32 NativeRoutineDescriptor(int selector)
210 + {
211 +        assert(selector < NATIVE_OP_MAX);
212 +        SheepRoutineDescriptor * const desc = native_op[selector].desc;
213 +        assert(desc != 0);
214 +        return desc->addr();
215 + }
216 +
217 +
218 + /*
219   *  Execute native code from EMUL_OP routine (real mode switch)
220   */
221  
222   void ExecuteNative(int selector)
223   {
187 –        SheepRoutineDescriptor desc(0, NativeTVECT(selector));
224          M68kRegisters r;
225 <        Execute68k(desc.addr(), &r);
225 >        Execute68k(NativeRoutineDescriptor(selector), &r);
226   }

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