| /* |
| * Copyright (c) 2008 Brian Swetland |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files |
| * (the "Software"), to deal in the Software without restriction, |
| * including without limitation the rights to use, copy, modify, merge, |
| * publish, distribute, sublicense, and/or sell copies of the Software, |
| * and to permit persons to whom the Software is furnished to do so, |
| * subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| .global dcc_putc |
| .global dcc_getc |
| |
| #if defined(ARM_ISA_ARMV6) || defined(ARM_ISA_ARMV7) |
| dcc_getc: |
| mrc 14, 0, r0, c0, c1, 0 |
| tst r0, #(1 << 30) |
| moveq r0, #-1 |
| mrcne 14, 0, r0, c0, c5, 0 |
| bx lr |
| |
| dcc_putc: |
| mrc 14, 0, r15, c0, c1, 0 |
| mcrcc 14, 0, r0, c0, c5, 0 |
| movcc r0, #0 |
| movcs r0, #-1 |
| bx lr |
| #endif |