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1.1 root 1: /*
2: * UAE - The Un*x Amiga Emulator
3: *
4: * Memory access functions
5: *
6: * Copyright 1996 Bernd Schmidt
7: */
8:
9: STATIC_INLINE uae_u32 do_get_mem_long (uae_u32 *a)
10: {
11: uae_u32 retval;
12:
13: __asm__ ("bswap %0" : "=r" (retval) : "0" (*a) : "cc");
14: return retval;
15: }
16:
17: STATIC_INLINE uae_u32 do_get_mem_word (uae_u16 *a)
18: {
19: uae_u32 retval;
20:
21: #ifdef X86_PPRO_OPT
22: __asm__ ("movzwl %w1,%k0\n\tshll $16,%k0\n\tbswap %k0\n" : "=&r" (retval) : "m" (*a) : "cc");
23: #else
24: __asm__ ("xorl %k0,%k0\n\tmovw %w1,%w0\n\trolw $8,%w0" : "=&r" (retval) : "m" (*a) : "cc");
25: #endif
26: return retval;
27: }
28:
29: #define do_get_mem_byte(a) ((uae_u32)*((uae_u8 *)a))
30:
31: STATIC_INLINE void do_put_mem_long (uae_u32 *a, uae_u32 v)
32: {
33: __asm__ ("bswap %0" : "=r" (v) : "0" (v) : "cc");
34: *a = v;
35: }
36:
37: STATIC_INLINE void do_put_mem_word (uae_u16 *a, uae_u32 v)
38: {
39: #ifdef X86_PPRO_OPT
40: __asm__ ("bswap %0" : "=&r" (v) : "0" (v << 16) : "cc");
41: #else
42: __asm__ ("rolw $8,%w0" : "=r" (v) : "0" (v) : "cc");
43: #endif
44: *a = v;
45: }
46:
47: #define do_put_mem_byte(a,v) (*(uae_u8 *)(a) = (v))
48:
49: #if 0
50: STATIC_INLINE uae_u32 call_mem_get_func(mem_get_func func, uae_cptr addr)
51: {
52: uae_u32 result;
53: __asm__("call %1"
54: : "=a" (result) : "r" (func), "a" (addr) : "cc", "edx", "ecx");
55: return result;
56: }
57:
58: STATIC_INLINE void call_mem_put_func(mem_put_func func, uae_cptr addr, uae_u32 v)
59: {
60: __asm__("call %2"
61: : : "a" (addr), "d" (v), "r" (func) : "cc", "eax", "edx", "ecx", "memory");
62: }
63: #else
64:
65: #define call_mem_get_func(func,addr) ((*func)(addr))
66: #define call_mem_put_func(func,addr,v) ((*func)(addr,v))
67:
68: #endif
69:
70: #undef NO_INLINE_MEMORY_ACCESS
71: #undef MD_HAVE_MEM_1_FUNCS
72:
73: #ifdef MD_HAVE_MEM_1_FUNCS
74: STATIC_INLINE uae_u32 longget_1 (uae_cptr addr)
75: {
76: uae_u32 result;
77:
78: __asm__ ("andl $0x00FFFFFF,%1\n"
79: "\tcmpb $0,(%1,%3)\n"
80: "\tleal 1f,%%ecx\n"
81: "\tje longget_stub\n"
82: "\taddl address_space,%1\n"
83: "\tmovl (%1),%0\n"
84: "\tbswap %0\n"
85: "\t1:"
86: : "=c" (result), "=d" (addr) : "1" (addr), "r" (good_address_map) : "cc");
87: return result;
88: }
89: STATIC_INLINE uae_u32 wordget_1 (uae_cptr addr)
90: {
91: uae_u32 result;
92:
93: __asm__ ("andl $0x00FFFFFF,%1\n"
94: "\tcmpb $0,(%1,%3)\n"
95: "\tleal 1f,%%ecx\n"
96: "\tje wordget_stub\n"
97: "\taddl address_space,%1\n"
98: "\tmovzwl (%1),%0\n"
99: "\trolw $8,%w0\n"
100: "\t1:"
101: : "=c" (result), "=d" (addr) : "1" (addr), "r" (good_address_map) : "cc");
102: return result;
103: }
104: STATIC_INLINE uae_u32 byteget_1 (uae_cptr addr)
105: {
106: uae_u32 result;
107:
108: __asm__ ("andl $0x00FFFFFF,%1\n"
109: "\tcmpb $0,(%1,%3)\n"
110: "\tleal 1f,%%ecx\n"
111: "\tje byteget_stub\n"
112: "\taddl address_space,%1\n"
113: "\tmovzbl (%1),%0\n"
114: "\t1:"
115: : "=c" (result), "=d" (addr) : "1" (addr), "r" (good_address_map) : "cc");
116: return result;
117: }
118: STATIC_INLINE void longput_1 (uae_cptr addr, uae_u32 l)
119: {
120: __asm__ __volatile__("andl $0x00FFFFFF,%0\n"
121: "\tcmpb $0,(%0,%3)\n"
122: "\tleal 1f,%%ecx\n"
123: "\tje longput_stub\n"
124: "\taddl address_space,%0\n"
125: "\tbswap %1\n"
126: "\tmovl %1,(%0)\n"
127: "\t1:"
128: : "=d" (addr), "=b" (l) : "0" (addr), "r" (good_address_map), "1" (l) : "cc", "memory", "ecx");
129: }
130: STATIC_INLINE void wordput_1 (uae_cptr addr, uae_u32 w)
131: {
132: __asm__ __volatile__("andl $0x00FFFFFF,%0\n"
133: "\tcmpb $0,(%0,%3)\n"
134: "\tleal 1f,%%ecx\n"
135: "\tje wordput_stub\n"
136: "\taddl address_space,%0\n"
137: "\trolw $8,%1\n"
138: "\tmovw %w1,(%0)\n"
139: "\t1:"
140: : "=d" (addr), "=b" (w) : "0" (addr), "r" (good_address_map), "1" (w) : "cc", "memory", "ecx");
141: }
142: STATIC_INLINE void byteput_1 (uae_cptr addr, uae_u32 b)
143: {
144: __asm__ __volatile__("andl $0x00FFFFFF,%0\n"
145: "\tcmpb $0,(%0,%3)\n"
146: "\tleal 1f,%%ecx\n"
147: "\tje byteput_stub\n"
148: "\taddl address_space,%0\n"
149: "\tmovb %b1,(%0)\n"
150: "\t1:"
151: : "=d" (addr), "=b" (b) : "0" (addr), "r" (good_address_map), "1" (b) : "cc", "memory", "ecx");
152: }
153:
154: #endif
155:
156: #define ALIGN_POINTER_TO32(p) ((~(unsigned long)(p)) & 3)
157:
158: /* Not the best place for this, but then there's no good place for a kludge
159: * like this... */
160: #define HAVE_UAE_U24
161: typedef struct {
162: unsigned char a, b, c;
163: } __attribute__ ((packed)) uae_u24;
164:
165: STATIC_INLINE uae_u24 uae24_convert (uae_u32 v)
166: {
167: return *(uae_u24 *)&v;
168: }
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