22 |
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#include "thunks.h" |
23 |
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#include "emul_op.h" |
24 |
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#include "cpu_emulation.h" |
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+ |
#include "xlowmem.h" |
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|
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// Native function declarations |
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#include "main.h" |
30 |
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#include "name_registry.h" |
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#include "serial.h" |
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#include "ether.h" |
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+ |
#include "macos_util.h" |
34 |
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|
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// Generate PowerPC thunks for GetResource() replacements? |
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#define POWERPC_GET_RESOURCE_THUNKS 1 |
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|
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|
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/* NativeOp instruction format: |
40 |
< |
+------------+--------------------------+--+----------+------------+ |
41 |
< |
| 6 | |FN| OP | 2 | |
42 |
< |
+------------+--------------------------+--+----------+------------+ |
43 |
< |
0 5 |6 19 20 21 25 26 31 |
40 |
> |
+------------+-------------------------+--+-----------+------------+ |
41 |
> |
| 6 | |FN| OP | 2 | |
42 |
> |
+------------+-------------------------+--+-----------+------------+ |
43 |
> |
0 5 |6 18 19 20 25 26 31 |
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*/ |
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|
46 |
< |
#define POWERPC_NATIVE_OP(LR, OP) \ |
47 |
< |
(POWERPC_EMUL_OP | ((LR) << 11) | (((uint32)OP) << 6) | 2) |
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> |
#define POWERPC_NATIVE_OP(FN, OP) \ |
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> |
(POWERPC_EMUL_OP | ((FN) << 12) | (((uint32)OP) << 6) | 2) |
48 |
> |
|
49 |
> |
/* |
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> |
* Return the fake PowerPC opcode to handle specified native code |
51 |
> |
*/ |
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|
44 |
– |
// Return the fake PowerPC opcode to handle specified native code |
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#if EMULATED_PPC |
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uint32 NativeOpcode(int selector) |
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{ |
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switch (selector) { |
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case NATIVE_DISABLE_INTERRUPT: |
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case NATIVE_ENABLE_INTERRUPT: |
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case NATIVE_CHECK_LOAD_INVOC: |
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opcode = POWERPC_NATIVE_OP(0, selector); |
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break; |
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case NATIVE_PATCH_NAME_REGISTRY: |
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case NATIVE_GET_1_IND_RESOURCE: |
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case NATIVE_R_GET_RESOURCE: |
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case NATIVE_MAKE_EXECUTABLE: |
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case NATIVE_SYNC_HOOK: |
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case NATIVE_BITBLT_HOOK: |
89 |
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case NATIVE_FILLRECT_HOOK: |
90 |
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case NATIVE_BITBLT: |
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case NATIVE_INVRECT: |
92 |
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case NATIVE_FILLRECT: |
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opcode = POWERPC_NATIVE_OP(1, selector); |
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break; |
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default: |
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} |
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#endif |
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|
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< |
// NativeOp -> { TVECT, function base } mappings |
102 |
> |
|
103 |
> |
/* |
104 |
> |
* Generate PowerPC thunks for GetResource() replacements |
105 |
> |
*/ |
106 |
> |
|
107 |
> |
#if EMULATED_PPC |
108 |
> |
static uint32 get_resource_func; |
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> |
static uint32 get_1_resource_func; |
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> |
static uint32 get_ind_resource_func; |
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> |
static uint32 get_1_ind_resource_func; |
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static uint32 r_get_resource_func; |
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|
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> |
static void generate_powerpc_thunks(void) |
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> |
{ |
116 |
> |
static uint32 get_resource_template[] = { |
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> |
PL(0x7c0802a6), // mflr r0 |
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> |
PL(0x90010008), // stw r0,8(r1) |
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> |
PL(0x9421ffbc), // stwu r1,-68(r1) |
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> |
PL(0x90610038), // stw r3,56(r1) |
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> |
PL(0x9081003c), // stw r4,60(r1) |
122 |
> |
PL(0x00000000), // lwz r0,XLM_GET_RESOURCE(r0) |
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> |
PL(0x80402834), // lwz r2,XLM_RES_LIB_TOC(r0) |
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> |
PL(0x7c0903a6), // mtctr r0 |
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> |
PL(0x4e800421), // bctrl |
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> |
PL(0x90610040), // stw r3,64(r1) |
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> |
PL(0x80610038), // lwz r3,56(r1) |
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PL(0xa881003e), // lha r4,62(r1) |
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PL(0x80a10040), // lwz r5,64(r1) |
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PL(0x00000001), // <check_load_invoc> |
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PL(0x80610040), // lwz r3,64(r1) |
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PL(0x8001004c), // lwz r0,76(r1) |
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PL(0x7c0803a6), // mtlr r0 |
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PL(0x38210044), // addi r1,r1,68 |
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PL(0x4e800020) // blr |
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> |
}; |
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> |
const uint32 get_resource_template_size = sizeof(get_resource_template); |
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> |
|
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> |
int xlm_index = -1, check_load_invoc_index = -1; |
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for (int i = 0; i < get_resource_template_size/4; i++) { |
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> |
uint32 opcode = ntohl(get_resource_template[i]); |
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switch (opcode) { |
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> |
case 0x00000000: |
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> |
xlm_index = i; |
145 |
> |
break; |
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> |
case 0x00000001: |
147 |
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check_load_invoc_index = i; |
148 |
> |
break; |
149 |
> |
} |
150 |
> |
} |
151 |
> |
assert(xlm_index != -1 && check_load_invoc_index != -1); |
152 |
> |
|
153 |
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uint32 check_load_invoc_opcode = NativeOpcode(NATIVE_CHECK_LOAD_INVOC); |
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> |
uintptr base; |
155 |
> |
|
156 |
> |
// GetResource() |
157 |
> |
get_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
158 |
> |
Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
159 |
> |
WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_RESOURCE); |
160 |
> |
WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
161 |
> |
|
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> |
// Get1Resource() |
163 |
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get_1_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
164 |
> |
Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
165 |
> |
WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_1_RESOURCE); |
166 |
> |
WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
167 |
> |
|
168 |
> |
// GetIndResource() |
169 |
> |
get_ind_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
170 |
> |
Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
171 |
> |
WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_IND_RESOURCE); |
172 |
> |
WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
173 |
> |
|
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> |
// Get1IndResource() |
175 |
> |
get_1_ind_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
176 |
> |
Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
177 |
> |
WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_1_IND_RESOURCE); |
178 |
> |
WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
179 |
> |
|
180 |
> |
// RGetResource() |
181 |
> |
r_get_resource_func = base = SheepMem::Reserve(get_resource_template_size); |
182 |
> |
Host2Mac_memcpy(base, get_resource_template, get_resource_template_size); |
183 |
> |
WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_R_GET_RESOURCE); |
184 |
> |
WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode); |
185 |
> |
} |
186 |
> |
#endif |
187 |
> |
|
188 |
> |
|
189 |
> |
/* |
190 |
> |
* Initialize the thunks system |
191 |
> |
*/ |
192 |
> |
|
193 |
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struct native_op_t { |
194 |
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uint32 tvect; |
195 |
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uint32 func; |
196 |
+ |
SheepRoutineDescriptor *desc; |
197 |
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}; |
198 |
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static native_op_t native_op[NATIVE_OP_MAX]; |
199 |
|
|
94 |
– |
// Initialize the thunks system |
200 |
|
bool ThunksInit(void) |
201 |
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{ |
202 |
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#if EMULATED_PPC |
208 |
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native_op[i].tvect = base; |
209 |
|
native_op[i].func = base + 8; |
210 |
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} |
211 |
+ |
#if POWERPC_GET_RESOURCE_THUNKS |
212 |
+ |
generate_powerpc_thunks(); |
213 |
+ |
native_op[NATIVE_GET_RESOURCE].func = get_resource_func; |
214 |
+ |
native_op[NATIVE_GET_1_RESOURCE].func = get_1_resource_func; |
215 |
+ |
native_op[NATIVE_GET_IND_RESOURCE].func = get_ind_resource_func; |
216 |
+ |
native_op[NATIVE_GET_1_IND_RESOURCE].func = get_1_ind_resource_func; |
217 |
+ |
native_op[NATIVE_R_GET_RESOURCE].func = r_get_resource_func; |
218 |
+ |
#endif |
219 |
|
#else |
220 |
< |
#if defined(__linux__) |
220 |
> |
#if defined(__linux__) || (defined(__APPLE__) && defined(__MACH__)) |
221 |
|
#define DEFINE_NATIVE_OP(ID, FUNC) do { \ |
222 |
|
uintptr base = SheepMem::Reserve(8); \ |
223 |
|
WriteMacInt32(base + 0, (uint32)FUNC); \ |
233 |
|
#else |
234 |
|
#error "FIXME: define NativeOp for your platform" |
235 |
|
#endif |
236 |
+ |
// FIXME: add GetResource() and friends for completeness |
237 |
+ |
DEFINE_NATIVE_OP(NATIVE_PATCH_NAME_REGISTRY, DoPatchNameRegistry); |
238 |
+ |
DEFINE_NATIVE_OP(NATIVE_VIDEO_INSTALL_ACCEL, VideoInstallAccel); |
239 |
+ |
DEFINE_NATIVE_OP(NATIVE_VIDEO_VBL, VideoVBL); |
240 |
+ |
DEFINE_NATIVE_OP(NATIVE_VIDEO_DO_DRIVER_IO, VideoDoDriverIO); |
241 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_IRQ, EtherIRQ); |
242 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_INIT, InitStreamModule); |
243 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_TERM, TerminateStreamModule); |
244 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_OPEN, ether_open); |
245 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_CLOSE, ether_close); |
246 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_WPUT, ether_wput); |
247 |
+ |
DEFINE_NATIVE_OP(NATIVE_ETHER_RSRV, ether_rsrv); |
248 |
|
DEFINE_NATIVE_OP(NATIVE_SERIAL_NOTHING, SerialNothing); |
249 |
|
DEFINE_NATIVE_OP(NATIVE_SERIAL_OPEN, SerialOpen); |
250 |
|
DEFINE_NATIVE_OP(NATIVE_SERIAL_PRIME_IN, SerialPrimeIn); |
253 |
|
DEFINE_NATIVE_OP(NATIVE_SERIAL_STATUS, SerialStatus); |
254 |
|
DEFINE_NATIVE_OP(NATIVE_SERIAL_CLOSE, SerialClose); |
255 |
|
DEFINE_NATIVE_OP(NATIVE_MAKE_EXECUTABLE, MakeExecutable); |
256 |
+ |
DEFINE_NATIVE_OP(NATIVE_SYNC_HOOK, NQD_sync_hook); |
257 |
+ |
DEFINE_NATIVE_OP(NATIVE_BITBLT_HOOK, NQD_bitblt_hook); |
258 |
+ |
DEFINE_NATIVE_OP(NATIVE_FILLRECT_HOOK, NQD_fillrect_hook); |
259 |
+ |
DEFINE_NATIVE_OP(NATIVE_BITBLT, NQD_bitblt); |
260 |
+ |
DEFINE_NATIVE_OP(NATIVE_INVRECT, NQD_invrect); |
261 |
+ |
DEFINE_NATIVE_OP(NATIVE_FILLRECT, NQD_fillrect); |
262 |
|
#undef DEFINE_NATIVE_OP |
263 |
|
#endif |
264 |
+ |
|
265 |
+ |
// Initialize routine descriptors (if TVECT exists) |
266 |
+ |
for (int i = 0; i < NATIVE_OP_MAX; i++) { |
267 |
+ |
uint32 tvect = native_op[i].tvect; |
268 |
+ |
if (tvect) |
269 |
+ |
native_op[i].desc = new SheepRoutineDescriptor(0, tvect); |
270 |
+ |
} |
271 |
+ |
|
272 |
|
return true; |
273 |
|
} |
274 |
|
|
275 |
< |
// Return the native function descriptor (TVECT) |
275 |
> |
|
276 |
> |
/* |
277 |
> |
* Delete generated thunks |
278 |
> |
*/ |
279 |
> |
|
280 |
> |
void ThunksExit(void) |
281 |
> |
{ |
282 |
> |
for (int i = 0; i < NATIVE_OP_MAX; i++) { |
283 |
> |
SheepRoutineDescriptor *desc = native_op[i].desc; |
284 |
> |
if (desc) |
285 |
> |
delete desc; |
286 |
> |
} |
287 |
> |
} |
288 |
> |
|
289 |
> |
|
290 |
> |
/* |
291 |
> |
* Return the native function descriptor (TVECT) |
292 |
> |
*/ |
293 |
> |
|
294 |
|
uint32 NativeTVECT(int selector) |
295 |
|
{ |
296 |
|
assert(selector < NATIVE_OP_MAX); |
297 |
|
const uint32 tvect = native_op[selector].tvect; |
298 |
|
assert(tvect != 0); |
299 |
< |
return native_op[selector].tvect; |
299 |
> |
return tvect; |
300 |
|
} |
301 |
|
|
302 |
< |
// Return the native function address |
302 |
> |
|
303 |
> |
/* |
304 |
> |
* Return the native function address |
305 |
> |
*/ |
306 |
> |
|
307 |
|
uint32 NativeFunction(int selector) |
308 |
|
{ |
309 |
|
assert(selector < NATIVE_OP_MAX); |
310 |
|
const uint32 func = native_op[selector].func; |
311 |
|
assert(func != 0); |
312 |
< |
return native_op[selector].func; |
312 |
> |
return func; |
313 |
> |
} |
314 |
> |
|
315 |
> |
|
316 |
> |
/* |
317 |
> |
* Return the routine descriptor address of the native function |
318 |
> |
*/ |
319 |
> |
|
320 |
> |
uint32 NativeRoutineDescriptor(int selector) |
321 |
> |
{ |
322 |
> |
assert(selector < NATIVE_OP_MAX); |
323 |
> |
SheepRoutineDescriptor * const desc = native_op[selector].desc; |
324 |
> |
assert(desc != 0); |
325 |
> |
return desc->addr(); |
326 |
> |
} |
327 |
> |
|
328 |
> |
|
329 |
> |
/* |
330 |
> |
* Execute native code from EMUL_OP routine (real mode switch) |
331 |
> |
*/ |
332 |
> |
|
333 |
> |
void ExecuteNative(int selector) |
334 |
> |
{ |
335 |
> |
M68kRegisters r; |
336 |
> |
Execute68k(NativeRoutineDescriptor(selector), &r); |
337 |
|
} |