projects / mirror_edk2.git / blame
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1 | /// Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r |
| 2 | /// This program and the accompanying materials\r | |
| c7f33ca4 | 3 | /// are licensed and made available under the terms and conditions of the BSD License\r |
| 4 | /// which accompanies this distribution. The full text of the license may be found at\r | |
| 5 | /// http://opensource.org/licenses/bsd-license.php\r | |
| 6 | ///\r | |
| 7 | /// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 8 | /// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 9 | ///\r | |
| 10 | /// Module Name: AccessDbr.s\r | |
| 11 | ///\r | |
| 12 | ///\r | |
| 13 | /// IPF specific Debug Breakpoint Registers accessing functions\r | |
| 14 | ///\r | |
| 15 | \r | |
| 16 | //---------------------------------------------------------------------------------\r | |
| 17 | //++\r | |
| 18 | // AsmReadDbr\r | |
| 19 | //\r | |
| 20 | // This routine is used to Reads the current value of Data Breakpoint Register (DBR).\r | |
| 21 | //\r | |
| 22 | // Arguments :\r | |
| 23 | //\r | |
| 24 | // On Entry : The 8-bit DBR index to read.\r | |
| 25 | //\r | |
| 26 | // Return Value: The current value of DBR by Index.\r | |
| 27 | //\r | |
| 28 | //--\r | |
| 29 | //----------------------------------------------------------------------------------\r | |
| 30 | .text\r | |
| 31 | .type AsmReadDbr, @function\r | |
| 32 | .proc AsmReadDbr\r | |
| 33 | .regstk 1, 0, 0, 0\r | |
| 34 | \r | |
| 35 | AsmReadDbr::\r | |
| 36 | mov r8 = dbr[in0];;\r | |
| 37 | br.ret.dpnt b0;;\r | |
| 38 | .endp AsmReadDbr\r | |
| 39 | \r | |
| 40 | //---------------------------------------------------------------------------------\r | |
| 41 | //++\r | |
| 42 | // AsmWriteDbr\r | |
| 43 | //\r | |
| 44 | // This routine is used to write the current value to Data Breakpoint Register (DBR).\r | |
| 45 | //\r | |
| 46 | // Arguments :\r | |
| 47 | //\r | |
| 48 | // On Entry : The 8-bit DBR index to read.\r | |
| 49 | // The value should be written to DBR\r | |
| 50 | //\r | |
| 51 | // Return Value: The value written to DBR.\r | |
| 52 | //\r | |
| 53 | //--\r | |
| 54 | //----------------------------------------------------------------------------------\r | |
| 55 | .text\r | |
| 56 | .type AsmWriteDbr, @function\r | |
| 57 | .proc AsmWriteDbr\r | |
| 58 | .regstk 2, 0, 0, 0\r | |
| 59 | \r | |
| 60 | AsmWriteDbr::\r | |
| 61 | mov dbr[in0] = in1\r | |
| 62 | mov r8 = in1;;\r | |
| 63 | srlz.d;;\r | |
| 64 | br.ret.dpnt b0;;\r | |
| 65 | .endp AsmWriteDbr\r | |
| 66 | \r | |
| 67 | \r | |
| 68 | //---------------------------------------------------------------------------------\r | |
| 69 | //++\r | |
| 70 | // AsmReadIbr\r | |
| 71 | //\r | |
| 72 | // This routine is used to Reads the current value of Instruction Breakpoint Register (IBR).\r | |
| 73 | //\r | |
| 74 | // Arguments :\r | |
| 75 | //\r | |
| 76 | // On Entry : The 8-bit IBR index.\r | |
| 77 | //\r | |
| 78 | // Return Value: The current value of IBR by Index.\r | |
| 79 | //\r | |
| 80 | //--\r | |
| 81 | //----------------------------------------------------------------------------------\r | |
| 82 | .text\r | |
| 83 | .type AsmReadIbr, @function\r | |
| 84 | .proc AsmReadIbr\r | |
| 85 | .regstk 1, 0, 0, 0\r | |
| 86 | \r | |
| 87 | AsmReadIbr::\r | |
| 88 | mov r8 = ibr[in0];;\r | |
| 89 | br.ret.dpnt b0;;\r | |
| 90 | .endp AsmReadIbr\r | |
| 91 | \r | |
| 92 | //---------------------------------------------------------------------------------\r | |
| 93 | //++\r | |
| 94 | // AsmWriteIbr\r | |
| 95 | //\r | |
| 96 | // This routine is used to write the current value to Instruction Breakpoint Register (IBR).\r | |
| 97 | //\r | |
| 98 | // Arguments :\r | |
| 99 | //\r | |
| 100 | // On Entry : The 8-bit IBR index.\r | |
| 101 | // The value should be written to IBR\r | |
| 102 | //\r | |
| 103 | // Return Value: The value written to IBR.\r | |
| 104 | //\r | |
| 105 | //--\r | |
| 106 | //----------------------------------------------------------------------------------\r | |
| 107 | .text\r | |
| 108 | .type AsmWriteIbr, @function\r | |
| 109 | .proc AsmWriteIbr\r | |
| 110 | .regstk 2, 0, 0, 0\r | |
| 111 | \r | |
| 112 | AsmWriteIbr::\r | |
| 113 | mov ibr[in0] = in1\r | |
| 114 | mov r8 = in1;;\r | |
| 115 | srlz.i;;\r | |
| 116 | br.ret.dpnt b0;;\r | |
| 117 | .endp AsmWriteIbr\r |