| Brian Swetland | e1d0b57 | 2008-09-07 02:08:41 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2008 Brian Swetland |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining |
| 5 | * a copy of this software and associated documentation files |
| 6 | * (the "Software"), to deal in the Software without restriction, |
| 7 | * including without limitation the rights to use, copy, modify, merge, |
| 8 | * publish, distribute, sublicense, and/or sell copies of the Software, |
| 9 | * and to permit persons to whom the Software is furnished to do so, |
| 10 | * subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice shall be |
| 13 | * included in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 16 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 19 | * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 20 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 21 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | .global dcc_putc |
| 25 | .global dcc_getc |
| 26 | |
| Brian Swetland | 7057769 | 2008-12-14 02:14:34 -0800 | [diff] [blame] | 27 | #if defined(ARM_ISA_ARMV6) || defined(ARM_ISA_ARMV7) |
| Brian Swetland | e1d0b57 | 2008-09-07 02:08:41 -0700 | [diff] [blame] | 28 | dcc_getc: |
| 29 | mrc 14, 0, r0, c0, c1, 0 |
| 30 | tst r0, #(1 << 30) |
| 31 | moveq r0, #-1 |
| 32 | mrcne 14, 0, r0, c0, c5, 0 |
| 33 | bx lr |
| 34 | |
| 35 | dcc_putc: |
| 36 | mrc 14, 0, r15, c0, c1, 0 |
| 37 | mcrcc 14, 0, r0, c0, c5, 0 |
| 38 | movcc r0, #0 |
| 39 | movcs r0, #-1 |
| 40 | bx lr |
| Brian Swetland | 7d7380c | 2008-12-07 21:52:23 -0800 | [diff] [blame] | 41 | #endif |