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1 | #ifndef __ASSEM_ARM_H__ |
2 | #define __ASSEM_ARM_H__ |
3 | |
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4 | #define HOST_REGS 13 |
5 | #define HOST_CCREG 10 |
6 | #define HOST_BTREG 8 |
7 | #define EXCLUDE_REG 11 |
8 | |
9 | #define HOST_IMM8 1 |
10 | #define HAVE_CMOV_IMM 1 |
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11 | #define HAVE_CONDITIONAL_CALL 1 |
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12 | #define RAM_SIZE 0x200000 |
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13 | |
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14 | #define REG_SHIFT 2 |
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15 | |
16 | /* ARM calling convention: |
17 | r0-r3, r12: caller-save |
18 | r4-r11: callee-save */ |
19 | |
20 | #define ARG1_REG 0 |
21 | #define ARG2_REG 1 |
22 | #define ARG3_REG 2 |
23 | #define ARG4_REG 3 |
24 | |
25 | /* GCC register naming convention: |
26 | r10 = sl (base) |
27 | r11 = fp (frame pointer) |
28 | r12 = ip (scratch) |
29 | r13 = sp (stack pointer) |
30 | r14 = lr (link register) |
31 | r15 = pc (program counter) */ |
32 | |
33 | #define FP 11 |
34 | #define LR 14 |
35 | #define HOST_TEMPREG 14 |
36 | |
37 | // Note: FP is set to &dynarec_local when executing generated code. |
38 | // Thus the local variables are actually global and not on the stack. |
39 | |
40 | extern char *invc_ptr; |
41 | |
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42 | #define TARGET_SIZE_2 24 // 2^24 = 16 megabytes |
43 | |
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44 | // Code generator target address |
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45 | #if defined(BASE_ADDR_FIXED) |
46 | // "round" address helpful for debug |
47 | // this produces best code, but not many platforms allow it, |
48 | // only use if you are sure this range is always free |
49 | #define BASE_ADDR 0x1000000 |
50 | #define translation_cache (char *)BASE_ADDR |
51 | #elif defined(BASE_ADDR_DYNAMIC) |
52 | // for platforms that can't just use .bss buffer, like vita |
53 | // otherwise better to use the next option for closer branches |
54 | extern char *translation_cache; |
55 | #define BASE_ADDR (u_int)translation_cache |
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56 | #else |
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57 | // using a static buffer in .bss |
58 | extern char translation_cache[1 << TARGET_SIZE_2]; |
59 | #define BASE_ADDR (u_int)translation_cache |
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60 | #endif |
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61 | |
62 | #endif /* __ASSEM_ARM_H__ */ |