e807ac75 |
1 | @ vim:filetype=armasm |
2 | |
3 | .if 0 |
4 | #include "compiler.h" |
5 | .endif |
6 | |
7 | .global tcache |
8 | |
9 | .global flush_inval_caches |
10 | .global regfile_load |
11 | .global regfile_store |
12 | |
13 | @ translation cache buffer |
14 | .text |
15 | .align 12 @ 4096 |
16 | .size tcache, TCACHE_SIZE |
17 | tcache: |
18 | .space TCACHE_SIZE |
19 | |
20 | |
21 | .text |
22 | .align 2 |
23 | |
24 | |
25 | flush_inval_caches: |
26 | mov r2, #0x0 @ must be 0 |
27 | swi 0x9f0002 |
28 | bx lr |
29 | |
30 | |
31 | @ SSP_GR0, SSP_X, SSP_Y, SSP_A, |
32 | @ SSP_ST, SSP_STACK, SSP_PC, SSP_P, |
33 | @ SSP_PM0, SSP_PM1, SSP_PM2, SSP_XST, |
34 | @ SSP_PM4, SSP_gr13, SSP_PMC, SSP_AL |
35 | |
36 | @ register map: |
37 | @ r4: XXYY |
38 | @ r5: A |
39 | @ r6: STACK and emu flags |
40 | @ r7: SSP context |
41 | @ r8: r0-r2 |
42 | @ r9: r4-r6 |
43 | @ r10: P |
44 | @ r11: cycles |
45 | |
46 | @ trashes r2,r3 |
47 | |
48 | regfile_load: |
49 | ldr r7, =ssp |
50 | ldr r7, [r7] |
51 | add r2, r7, #0x400 |
52 | add r2, r2, #4 |
53 | ldmia r2, {r3,r4,r5,r6,r8} |
54 | mov r3, r3, lsr #16 |
55 | mov r3, r3, lsl #16 |
56 | orr r4, r3, r4, lsr #16 @ XXYY |
57 | bic r6, r6, #0xff |
58 | orr r6, r6, r8, lsr #16 @ flags + STACK |
59 | ldr r8, [r7, #0x440] @ r0-r2 |
60 | ldr r9, [r7, #0x444] @ r4-r6 |
61 | ldr r10,[r7, #(0x400+7*4)] @ P |
62 | bx lr |
63 | |
64 | |
65 | regfile_store: |
66 | str r10,[r7, #(0x400+7*4)] @ P |
67 | str r8, [r7, #0x440] @ r0-r2 |
68 | str r9, [r7, #0x444] @ r4-r6 |
69 | mov r9, r6, lsl #16 |
70 | and r9, r9, #(7<<16) @ STACK |
71 | bic r6, r6, #0xff @ ST |
72 | mov r3, r4, lsl #16 @ Y |
73 | mov r2, r4, lsr #16 |
74 | mov r2, r2, lsl #16 @ X |
75 | add r8, r7, #0x400 |
76 | add r8, r8, #4 |
77 | stmia r8, {r2,r3,r5,r6,r9} |
78 | bx lr |
79 | |
80 | |
81 | |