| Paul Sokolovsky | e85c389 | 2013-12-30 03:38:32 +0200 | [diff] [blame] | 1 | #ifdef __thumb2__ |
| 2 | /* thumb callee save: bx, bp, sp, r12, r14, r14, r15 */ |
| Damien | 152568b | 2013-10-16 00:46:39 +0100 | [diff] [blame] | 3 | |
| 4 | .syntax unified |
| 5 | .cpu cortex-m4 |
| 6 | .thumb |
| 7 | .text |
| 8 | .align 2 |
| 9 | |
| Paul Sokolovsky | e85c389 | 2013-12-30 03:38:32 +0200 | [diff] [blame] | 10 | /* uint nlr_push(r0=nlr_buf_t *nlr) */ |
| Damien | 152568b | 2013-10-16 00:46:39 +0100 | [diff] [blame] | 11 | .global nlr_push |
| 12 | .thumb |
| 13 | .thumb_func |
| 14 | .type nlr_push, %function |
| 15 | nlr_push: |
| 16 | str lr, [r0, #8] @ store lr into nlr_buf |
| 17 | str r4, [r0, #12] @ store r4 into nlr_buf |
| 18 | str r5, [r0, #16] @ store r5 into nlr_buf |
| 19 | str r6, [r0, #20] @ store r6 into nlr_buf |
| 20 | str r7, [r0, #24] @ store r7 into nlr_buf |
| 21 | str r8, [r0, #28] @ store r8 into nlr_buf |
| 22 | str r9, [r0, #32] @ store r9 into nlr_buf |
| 23 | str r10, [r0, #36] @ store r10 into nlr_buf |
| 24 | str r11, [r0, #40] @ store r11 into nlr_buf |
| 25 | str r13, [r0, #44] @ store r13=sp into nlr_buf |
| 26 | |
| 27 | ldr r3, .L2 @ load addr of nlr_top |
| 28 | ldr r2, [r3] @ load nlr_top |
| 29 | str r2, [r0] @ store nlr_top into nlr_buf |
| 30 | str r0, [r3] @ store nlr_buf into nlr_top (to link list) |
| 31 | |
| 32 | movs r0, #0 @ return 0, normal return |
| 33 | bx lr @ return |
| 34 | .align 2 |
| 35 | .L2: |
| 36 | .word .LANCHOR0 |
| 37 | .size nlr_push, .-nlr_push |
| 38 | |
| 39 | @ void nlr_pop() |
| 40 | .global nlr_pop |
| 41 | .thumb |
| 42 | .thumb_func |
| 43 | .type nlr_pop, %function |
| 44 | nlr_pop: |
| 45 | ldr r3, .L5 @ load addr of nlr_top |
| 46 | ldr r2, [r3] @ load nlr_top |
| 47 | ldr r2, [r2] @ load prev nlr_buf |
| 48 | str r2, [r3] @ store prev nlr_buf to nlr_top (to unlink list) |
| 49 | bx lr @ return |
| 50 | .align 2 |
| 51 | .L5: |
| 52 | .word .LANCHOR0 |
| 53 | .size nlr_pop, .-nlr_pop |
| 54 | |
| Paul Sokolovsky | e85c389 | 2013-12-30 03:38:32 +0200 | [diff] [blame] | 55 | /* void nlr_jump(r0=uint val) */ |
| Damien | 152568b | 2013-10-16 00:46:39 +0100 | [diff] [blame] | 56 | .global nlr_jump |
| 57 | .thumb |
| 58 | .thumb_func |
| 59 | .type nlr_jump, %function |
| 60 | nlr_jump: |
| 61 | ldr r3, .L2 @ load addr of nlr_top |
| 62 | ldr r2, [r3] @ load nlr_top |
| 63 | str r0, [r2, #4] @ store return value |
| 64 | ldr r0, [r2] @ load prev nlr_buf |
| 65 | str r0, [r3] @ store prev nol_buf into nlr_top (to unlink list) |
| 66 | |
| 67 | ldr lr, [r2, #8] @ load lr from nlr_buf |
| 68 | ldr r4, [r2, #12] @ load r4 from nlr_buf |
| 69 | ldr r5, [r2, #16] @ load r5 from nlr_buf |
| 70 | ldr r6, [r2, #20] @ load r6 from nlr_buf |
| 71 | ldr r7, [r2, #24] @ load r7 from nlr_buf |
| 72 | ldr r8, [r2, #28] @ load r8 from nlr_buf |
| 73 | ldr r9, [r2, #32] @ load r9 from nlr_buf |
| 74 | ldr r10, [r2, #36] @ load r10 from nlr_buf |
| 75 | ldr r11, [r2, #40] @ load r11 from nlr_buf |
| 76 | ldr r13, [r2, #44] @ load r13=sp from nlr_buf |
| 77 | |
| 78 | movs r0, #1 @ return 1, non-local return |
| 79 | bx lr @ return |
| 80 | .align 2 |
| 81 | .L6: |
| 82 | .word .LANCHOR0 |
| 83 | .size nlr_jump, .-nlr_jump |
| 84 | |
| Paul Sokolovsky | e85c389 | 2013-12-30 03:38:32 +0200 | [diff] [blame] | 85 | /* local variable nlr_top */ |
| Damien | 152568b | 2013-10-16 00:46:39 +0100 | [diff] [blame] | 86 | .bss |
| 87 | .align 2 |
| 88 | .set .LANCHOR0,. + 0 |
| 89 | .type nlr_top, %object |
| 90 | .size nlr_top, 4 |
| 91 | nlr_top: |
| 92 | .space 4 |
| Paul Sokolovsky | e85c389 | 2013-12-30 03:38:32 +0200 | [diff] [blame] | 93 | #endif |