SheepShaver/src/thunks.cpp

/*
 *  thunks.cpp - Thunks to share data and code with MacOS
 *
 *  SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "sysdeps.h"
#include "thunks.h"
#include "emul_op.h"
#include "cpu_emulation.h"
#include "xlowmem.h"

// Native function declarations
#include "main.h"
#include "video.h"
#include "name_registry.h"
#include "serial.h"
#include "ether.h"
#include "macos_util.h"

// Generate PowerPC thunks for GetResource() replacements?
#define POWERPC_GET_RESOURCE_THUNKS 1


/*              NativeOp instruction format:
                +------------+--------------------------+--+----------+------------+
                |      6     |                          |FN|    OP    |      2     |
                +------------+--------------------------+--+----------+------------+
                 0         5 |6                       19 20 21      25 26        31
*/

#define POWERPC_NATIVE_OP(LR, OP) \
                (POWERPC_EMUL_OP | ((LR) << 11) | (((uint32)OP) << 6) | 2)

/*
 *  Return the fake PowerPC opcode to handle specified native code
 */

#if EMULATED_PPC
uint32 NativeOpcode(int selector)
{
        uint32 opcode;
        switch (selector) {
        case NATIVE_DISABLE_INTERRUPT:
        case NATIVE_ENABLE_INTERRUPT:
        case NATIVE_CHECK_LOAD_INVOC:
                opcode = POWERPC_NATIVE_OP(0, selector);
                break;
        case NATIVE_PATCH_NAME_REGISTRY:
        case NATIVE_VIDEO_INSTALL_ACCEL:
        case NATIVE_VIDEO_VBL:
        case NATIVE_VIDEO_DO_DRIVER_IO:
        case NATIVE_ETHER_IRQ:
        case NATIVE_ETHER_INIT:
        case NATIVE_ETHER_TERM:
        case NATIVE_ETHER_OPEN:
        case NATIVE_ETHER_CLOSE:
        case NATIVE_ETHER_WPUT:
        case NATIVE_ETHER_RSRV:
        case NATIVE_SERIAL_NOTHING:
        case NATIVE_SERIAL_OPEN:
        case NATIVE_SERIAL_PRIME_IN:
        case NATIVE_SERIAL_PRIME_OUT:
        case NATIVE_SERIAL_CONTROL:
        case NATIVE_SERIAL_STATUS:
        case NATIVE_SERIAL_CLOSE:
        case NATIVE_GET_RESOURCE:
        case NATIVE_GET_1_RESOURCE:
        case NATIVE_GET_IND_RESOURCE:
        case NATIVE_GET_1_IND_RESOURCE:
        case NATIVE_R_GET_RESOURCE:
        case NATIVE_MAKE_EXECUTABLE:
        case NATIVE_SYNC_HOOK:
        case NATIVE_BITBLT_HOOK:
        case NATIVE_FILLRECT_HOOK:
        case NATIVE_BITBLT:
        case NATIVE_INVRECT:
        case NATIVE_FILLRECT:
                opcode = POWERPC_NATIVE_OP(1, selector);
                break;
        default:
                abort();
        }
        return opcode;
}
#endif


/*
 *  Generate PowerPC thunks for GetResource() replacements
 */

#if EMULATED_PPC
static uint32 get_resource_func;
static uint32 get_1_resource_func;
static uint32 get_ind_resource_func;
static uint32 get_1_ind_resource_func;
static uint32 r_get_resource_func;

static void generate_powerpc_thunks(void)
{
        static uint32 get_resource_template[] = {
                PL(0x7c0802a6),         // mflr    r0
                PL(0x90010008),         // stw     r0,8(r1)
                PL(0x9421ffbc),         // stwu    r1,-68(r1)
                PL(0x90610038),         // stw     r3,56(r1)
                PL(0x9081003c),         // stw     r4,60(r1)
                PL(0x00000000),         // lwz     r0,XLM_GET_RESOURCE(r0)
                PL(0x80402834),         // lwz     r2,XLM_RES_LIB_TOC(r0)
                PL(0x7c0903a6),         // mtctr   r0
                PL(0x4e800421),         // bctrl
                PL(0x90610040),         // stw     r3,64(r1)
                PL(0x80610038),         // lwz     r3,56(r1)
                PL(0xa881003e),         // lha     r4,62(r1)
                PL(0x80a10040),         // lwz     r5,64(r1)
                PL(0x00000001),         // <check_load_invoc>
                PL(0x80610040),         // lwz     r3,64(r1)
                PL(0x8001004c),         // lwz     r0,76(r1)
                PL(0x7c0803a6),         // mtlr    r0
                PL(0x38210044),         // addi    r1,r1,68
                PL(0x4e800020)          // blr
        };
        const uint32 get_resource_template_size = sizeof(get_resource_template);

        int xlm_index = -1, check_load_invoc_index = -1;
        for (int i = 0; i < get_resource_template_size/4; i++) {
                uint32 opcode = ntohl(get_resource_template[i]);
                switch (opcode) {
                case 0x00000000:
                        xlm_index = i;
                        break;
                case 0x00000001:
                        check_load_invoc_index = i;
                        break;
                }
        }
        assert(xlm_index != -1 && check_load_invoc_index != -1);

        uint32 check_load_invoc_opcode = NativeOpcode(NATIVE_CHECK_LOAD_INVOC);
        uintptr base;

        // GetResource()
        get_resource_func = base = SheepMem::Reserve(get_resource_template_size);
        Host2Mac_memcpy(base, get_resource_template, get_resource_template_size);
        WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_RESOURCE);
        WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode);

        // Get1Resource()
        get_1_resource_func = base = SheepMem::Reserve(get_resource_template_size);
        Host2Mac_memcpy(base, get_resource_template, get_resource_template_size);
        WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_1_RESOURCE);
        WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode);

        // GetIndResource()
        get_ind_resource_func = base = SheepMem::Reserve(get_resource_template_size);
        Host2Mac_memcpy(base, get_resource_template, get_resource_template_size);
        WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_IND_RESOURCE);
        WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode);

        // Get1IndResource()
        get_1_ind_resource_func = base = SheepMem::Reserve(get_resource_template_size);
        Host2Mac_memcpy(base, get_resource_template, get_resource_template_size);
        WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_GET_1_IND_RESOURCE);
        WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode);

        // RGetResource()
        r_get_resource_func = base = SheepMem::Reserve(get_resource_template_size);
        Host2Mac_memcpy(base, get_resource_template, get_resource_template_size);
        WriteMacInt32(base + xlm_index * 4, 0x80000000 | XLM_R_GET_RESOURCE);
        WriteMacInt32(base + check_load_invoc_index * 4, check_load_invoc_opcode);
}
#endif


/*
 *  Initialize the thunks system
 */

struct native_op_t {
        uint32 tvect;
        uint32 func;
        SheepRoutineDescriptor *desc;
};
static native_op_t native_op[NATIVE_OP_MAX];

bool ThunksInit(void)
{
#if EMULATED_PPC
        for (int i = 0; i < NATIVE_OP_MAX; i++) {
                uintptr base = SheepMem::Reserve(12);
                WriteMacInt32(base + 0, base + 8);
                WriteMacInt32(base + 4, 0); // Fake TVECT
                WriteMacInt32(base + 8, NativeOpcode(i));
                native_op[i].tvect = base;
                native_op[i].func  = base + 8;
        }
#if POWERPC_GET_RESOURCE_THUNKS
        generate_powerpc_thunks();
        native_op[NATIVE_GET_RESOURCE].func = get_resource_func;
        native_op[NATIVE_GET_1_RESOURCE].func = get_1_resource_func;
        native_op[NATIVE_GET_IND_RESOURCE].func = get_ind_resource_func;
        native_op[NATIVE_GET_1_IND_RESOURCE].func = get_1_ind_resource_func;
        native_op[NATIVE_R_GET_RESOURCE].func = r_get_resource_func;
#endif
#else
#if defined(__linux__) || (defined(__APPLE__) && defined(__MACH__))
#define DEFINE_NATIVE_OP(ID, FUNC) do {                         \
                uintptr base = SheepMem::Reserve(8);            \
                WriteMacInt32(base + 0, (uint32)FUNC);          \
                WriteMacInt32(base + 4, 0); /*Fake TVECT*/      \
                native_op[ID].tvect = base;                                     \
                native_op[ID].func  = (uint32)FUNC;                     \
        } while (0)
#elif defined(__BEOS__)
#define DEFINE_NATIVE_OP(ID, FUNC) do {                         \
                native_op[ID].tvect = FUNC;                                     \
                native_op[ID].func  = ((uint32 *)FUNC)[0];      \
        } while (0)
#else
#error "FIXME: define NativeOp for your platform"
#endif
        // FIXME: add GetResource() and friends for completeness
        DEFINE_NATIVE_OP(NATIVE_PATCH_NAME_REGISTRY, DoPatchNameRegistry);
        DEFINE_NATIVE_OP(NATIVE_VIDEO_INSTALL_ACCEL, VideoInstallAccel);
        DEFINE_NATIVE_OP(NATIVE_VIDEO_VBL, VideoVBL);
        DEFINE_NATIVE_OP(NATIVE_VIDEO_DO_DRIVER_IO, VideoDoDriverIO);
        DEFINE_NATIVE_OP(NATIVE_ETHER_IRQ, EtherIRQ);
        DEFINE_NATIVE_OP(NATIVE_ETHER_INIT, InitStreamModule);
        DEFINE_NATIVE_OP(NATIVE_ETHER_TERM, TerminateStreamModule);
        DEFINE_NATIVE_OP(NATIVE_ETHER_OPEN, ether_open);
        DEFINE_NATIVE_OP(NATIVE_ETHER_CLOSE, ether_close);
        DEFINE_NATIVE_OP(NATIVE_ETHER_WPUT, ether_wput);
        DEFINE_NATIVE_OP(NATIVE_ETHER_RSRV, ether_rsrv);
        DEFINE_NATIVE_OP(NATIVE_SERIAL_NOTHING, SerialNothing);
        DEFINE_NATIVE_OP(NATIVE_SERIAL_OPEN, SerialOpen);
        DEFINE_NATIVE_OP(NATIVE_SERIAL_PRIME_IN, SerialPrimeIn);
        DEFINE_NATIVE_OP(NATIVE_SERIAL_PRIME_OUT, SerialPrimeOut);
        DEFINE_NATIVE_OP(NATIVE_SERIAL_CONTROL, SerialControl);
        DEFINE_NATIVE_OP(NATIVE_SERIAL_STATUS, SerialStatus);
        DEFINE_NATIVE_OP(NATIVE_SERIAL_CLOSE, SerialClose);
        DEFINE_NATIVE_OP(NATIVE_MAKE_EXECUTABLE, MakeExecutable);
        DEFINE_NATIVE_OP(NATIVE_SYNC_HOOK, NQD_sync_hook);
        DEFINE_NATIVE_OP(NATIVE_BITBLT_HOOK, NQD_bitblt_hook);
        DEFINE_NATIVE_OP(NATIVE_FILLRECT_HOOK, NQD_fillrect_hook);
        DEFINE_NATIVE_OP(NATIVE_BITBLT, NQD_bitblt);
        DEFINE_NATIVE_OP(NATIVE_INVRECT, NQD_invrect);
        DEFINE_NATIVE_OP(NATIVE_FILLRECT, NQD_fillrect);
#undef DEFINE_NATIVE_OP
#endif

        // Initialize routine descriptors (if TVECT exists)
        for (int i = 0; i < NATIVE_OP_MAX; i++) {
                uint32 tvect = native_op[i].tvect;
                if (tvect)
                        native_op[i].desc = new SheepRoutineDescriptor(0, tvect);
        }

        return true;
}


/*
 *  Delete generated thunks
 */

void ThunksExit(void)
{
        for (int i = 0; i < NATIVE_OP_MAX; i++) {
                SheepRoutineDescriptor *desc = native_op[i].desc;
                if (desc)
                        delete desc;
        }
}


/*
 *  Return the native function descriptor (TVECT)
 */

uint32 NativeTVECT(int selector)
{
        assert(selector < NATIVE_OP_MAX);
        const uint32 tvect = native_op[selector].tvect;
        assert(tvect != 0);
        return tvect;
}


/*
 *  Return the native function address
 */

uint32 NativeFunction(int selector)
{
        assert(selector < NATIVE_OP_MAX);
        const uint32 func = native_op[selector].func;
        assert(func != 0);
        return func;
}


/*
 *  Return the routine descriptor address of the native function
 */

uint32 NativeRoutineDescriptor(int selector)
{
        assert(selector < NATIVE_OP_MAX);
        SheepRoutineDescriptor * const desc = native_op[selector].desc;
        assert(desc != 0);
        return desc->addr();
}


/*
 *  Execute native code from EMUL_OP routine (real mode switch)
 */

void ExecuteNative(int selector)
{
        M68kRegisters r;
        Execute68k(NativeRoutineDescriptor(selector), &r);
}
Revision:	1.8
Committed:	2004-04-22T20:57:29Z (20 years ago) by gbeauche
Branch:	MAIN
Changes since 1.7:	+4 -6 lines
Log Message:	Basic fillrect/invrect NQD. Code may need to be factored out somehow. Verify that bitblt NQD transfer modes are really CopyBits() ones [MB5].
#	User	Rev	Content
1	gbeauche	1.1	/*
2			* thunks.cpp - Thunks to share data and code with MacOS
3			*
4			* SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
5			*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19			*/
20
21			#include "sysdeps.h"
22			#include "thunks.h"
23			#include "emul_op.h"
24			#include "cpu_emulation.h"
25	gbeauche	1.6	#include "xlowmem.h"
26	gbeauche	1.1
27			// Native function declarations
28			#include "main.h"
29			#include "video.h"
30			#include "name_registry.h"
31			#include "serial.h"
32			#include "ether.h"
33	gbeauche	1.2	#include "macos_util.h"
34	gbeauche	1.1
35	gbeauche	1.6	// Generate PowerPC thunks for GetResource() replacements?
36			#define POWERPC_GET_RESOURCE_THUNKS 1
37
38	gbeauche	1.1
39			/* NativeOp instruction format:
40			+------------+--------------------------+--+----------+------------+
41			\| 6 \| \|FN\| OP \| 2 \|
42			+------------+--------------------------+--+----------+------------+
43			0 5 \|6 19 20 21 25 26 31
44			*/
45
46			#define POWERPC_NATIVE_OP(LR, OP) \
47			(POWERPC_EMUL_OP \| ((LR) << 11) \| (((uint32)OP) << 6) \| 2)
48
49	gbeauche	1.2	/*
50			* Return the fake PowerPC opcode to handle specified native code
51			*/
52
53	gbeauche	1.1	#if EMULATED_PPC
54			uint32 NativeOpcode(int selector)
55			{
56			uint32 opcode;
57			switch (selector) {
58			case NATIVE_DISABLE_INTERRUPT:
59			case NATIVE_ENABLE_INTERRUPT:
60	gbeauche	1.6	case NATIVE_CHECK_LOAD_INVOC:
61	gbeauche	1.1	opcode = POWERPC_NATIVE_OP(0, selector);
62			break;
63			case NATIVE_PATCH_NAME_REGISTRY:
64			case NATIVE_VIDEO_INSTALL_ACCEL:
65			case NATIVE_VIDEO_VBL:
66			case NATIVE_VIDEO_DO_DRIVER_IO:
67			case NATIVE_ETHER_IRQ:
68			case NATIVE_ETHER_INIT:
69			case NATIVE_ETHER_TERM:
70			case NATIVE_ETHER_OPEN:
71			case NATIVE_ETHER_CLOSE:
72			case NATIVE_ETHER_WPUT:
73			case NATIVE_ETHER_RSRV:
74			case NATIVE_SERIAL_NOTHING:
75			case NATIVE_SERIAL_OPEN:
76			case NATIVE_SERIAL_PRIME_IN:
77			case NATIVE_SERIAL_PRIME_OUT:
78			case NATIVE_SERIAL_CONTROL:
79			case NATIVE_SERIAL_STATUS:
80			case NATIVE_SERIAL_CLOSE:
81			case NATIVE_GET_RESOURCE:
82			case NATIVE_GET_1_RESOURCE:
83			case NATIVE_GET_IND_RESOURCE:
84			case NATIVE_GET_1_IND_RESOURCE:
85			case NATIVE_R_GET_RESOURCE:
86			case NATIVE_MAKE_EXECUTABLE:
87	gbeauche	1.7	case NATIVE_SYNC_HOOK:
88			case NATIVE_BITBLT_HOOK:
89			case NATIVE_FILLRECT_HOOK:
90			case NATIVE_BITBLT:
91			case NATIVE_INVRECT:
92	gbeauche	1.8	case NATIVE_FILLRECT:
93	gbeauche	1.1	opcode = POWERPC_NATIVE_OP(1, selector);
94			break;
95			default:
96			abort();
97			}
98			return opcode;
99			}
100			#endif
101
102	gbeauche	1.2
103			/*
104	gbeauche	1.6	* Generate PowerPC thunks for GetResource() replacements
105			*/
106
107			#if EMULATED_PPC
108			static uint32 get_resource_func;
109			static uint32 get_1_resource_func;
110			static uint32 get_ind_resource_func;
111			static uint32 get_1_ind_resource_func;
112			static uint32 r_get_resource_func;
113
114			static void generate_powerpc_thunks(void)
115			{
116			static uint32 get_resource_template[] = {
117			PL(0x7c0802a6), // mflr r0
118			PL(0x90010008), // stw r0,8(r1)
119			PL(0x9421ffbc), // stwu r1,-68(r1)
120			PL(0x90610038), // stw r3,56(r1)
121			PL(0x9081003c), // stw r4,60(r1)
122			PL(0x00000000), // lwz r0,XLM_GET_RESOURCE(r0)
123			PL(0x80402834), // lwz r2,XLM_RES_LIB_TOC(r0)
124			PL(0x7c0903a6), // mtctr r0
125			PL(0x4e800421), // bctrl
126			PL(0x90610040), // stw r3,64(r1)
127			PL(0x80610038), // lwz r3,56(r1)
128			PL(0xa881003e), // lha r4,62(r1)
129			PL(0x80a10040), // lwz r5,64(r1)
130			PL(0x00000001), // <check_load_invoc>
131			PL(0x80610040), // lwz r3,64(r1)
132			PL(0x8001004c), // lwz r0,76(r1)
133			PL(0x7c0803a6), // mtlr r0
134			PL(0x38210044), // addi r1,r1,68
135			PL(0x4e800020) // blr
136			};
137			const uint32 get_resource_template_size = sizeof(get_resource_template);
138
139			int xlm_index = -1, check_load_invoc_index = -1;
140			for (int i = 0; i < get_resource_template_size/4; i++) {
141			uint32 opcode = ntohl(get_resource_template[i]);
142			switch (opcode) {
143			case 0x00000000:
144			xlm_index = i;
145			break;
146			case 0x00000001:
147			check_load_invoc_index = i;
148			break;
149			}
150			}
151			assert(xlm_index != -1 && check_load_invoc_index != -1);
152
153			uint32 check_load_invoc_opcode = NativeOpcode(NATIVE_CHECK_LOAD_INVOC);
154			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
162			// Get1Resource()
163			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
174			// 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	gbeauche	1.2	* Initialize the thunks system
191			*/
192
193	gbeauche	1.1	struct native_op_t {
194			uint32 tvect;
195			uint32 func;
196	gbeauche	1.3	SheepRoutineDescriptor *desc;
197	gbeauche	1.1	};
198			static native_op_t native_op[NATIVE_OP_MAX];
199
200			bool ThunksInit(void)
201			{
202			#if EMULATED_PPC
203			for (int i = 0; i < NATIVE_OP_MAX; i++) {
204			uintptr base = SheepMem::Reserve(12);
205			WriteMacInt32(base + 0, base + 8);
206			WriteMacInt32(base + 4, 0); // Fake TVECT
207			WriteMacInt32(base + 8, NativeOpcode(i));
208			native_op[i].tvect = base;
209			native_op[i].func = base + 8;
210			}
211	gbeauche	1.6	#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	gbeauche	1.1	#else
220	gbeauche	1.5	#if defined(__linux__) \|\| (defined(__APPLE__) && defined(__MACH__))
221	gbeauche	1.1	#define DEFINE_NATIVE_OP(ID, FUNC) do { \
222			uintptr base = SheepMem::Reserve(8); \
223			WriteMacInt32(base + 0, (uint32)FUNC); \
224			WriteMacInt32(base + 4, 0); /Fake TVECT/ \
225			native_op[ID].tvect = base; \
226			native_op[ID].func = (uint32)FUNC; \
227			} while (0)
228			#elif defined(__BEOS__)
229			#define DEFINE_NATIVE_OP(ID, FUNC) do { \
230			native_op[ID].tvect = FUNC; \
231			native_op[ID].func = ((uint32 *)FUNC)[0]; \
232			} while (0)
233			#else
234			#error "FIXME: define NativeOp for your platform"
235			#endif
236	gbeauche	1.4	// FIXME: add GetResource() and friends for completeness
237	gbeauche	1.2	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	gbeauche	1.1	DEFINE_NATIVE_OP(NATIVE_SERIAL_NOTHING, SerialNothing);
249			DEFINE_NATIVE_OP(NATIVE_SERIAL_OPEN, SerialOpen);
250			DEFINE_NATIVE_OP(NATIVE_SERIAL_PRIME_IN, SerialPrimeIn);
251			DEFINE_NATIVE_OP(NATIVE_SERIAL_PRIME_OUT, SerialPrimeOut);
252			DEFINE_NATIVE_OP(NATIVE_SERIAL_CONTROL, SerialControl);
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	gbeauche	1.7	DEFINE_NATIVE_OP(NATIVE_SYNC_HOOK, NQD_sync_hook);
257			DEFINE_NATIVE_OP(NATIVE_BITBLT_HOOK, NQD_bitblt_hook);
258	gbeauche	1.8	DEFINE_NATIVE_OP(NATIVE_FILLRECT_HOOK, NQD_fillrect_hook);
259	gbeauche	1.7	DEFINE_NATIVE_OP(NATIVE_BITBLT, NQD_bitblt);
260	gbeauche	1.8	DEFINE_NATIVE_OP(NATIVE_INVRECT, NQD_invrect);
261			DEFINE_NATIVE_OP(NATIVE_FILLRECT, NQD_fillrect);
262	gbeauche	1.1	#undef DEFINE_NATIVE_OP
263			#endif
264	gbeauche	1.3
265	gbeauche	1.4	// 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	gbeauche	1.3
272	gbeauche	1.1	return true;
273			}
274
275	gbeauche	1.2
276			/*
277	gbeauche	1.3	* 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	gbeauche	1.2	* Return the native function descriptor (TVECT)
292			*/
293
294	gbeauche	1.1	uint32 NativeTVECT(int selector)
295			{
296			assert(selector < NATIVE_OP_MAX);
297			const uint32 tvect = native_op[selector].tvect;
298			assert(tvect != 0);
299	gbeauche	1.2	return tvect;
300	gbeauche	1.1	}
301
302	gbeauche	1.2
303			/*
304			* Return the native function address
305			*/
306
307	gbeauche	1.1	uint32 NativeFunction(int selector)
308			{
309			assert(selector < NATIVE_OP_MAX);
310			const uint32 func = native_op[selector].func;
311			assert(func != 0);
312	gbeauche	1.2	return func;
313			}
314
315
316			/*
317	gbeauche	1.3	* 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	gbeauche	1.2	* Execute native code from EMUL_OP routine (real mode switch)
331			*/
332
333			void ExecuteNative(int selector)
334			{
335			M68kRegisters r;
336	gbeauche	1.3	Execute68k(NativeRoutineDescriptor(selector), &r);
337	gbeauche	1.1	}