FreeCalypso > hg > freecalypso-sw
annotate gsm-fw/libiram/bcopy_words.S @ 891:f3fba126778a
gsm-fw/comlib/cl_imei.c: implemented reading of Pirelli's factory IMEI record
author | Space Falcon <falcon@ivan.Harhan.ORG> |
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date | Mon, 29 Jun 2015 21:58:15 +0000 |
parents | cbc49d533b7d |
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rev | line source |
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860
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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1 /* |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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2 * bcopy_aligned_words() takes the same arguments as BSD bcopy(), |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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3 * but requires both addresses and the count to be 32-bit word-aligned, |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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4 * and assumes that the source and destination memory regions |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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5 * do not overlap. Furthermore, the count is expected to be non-zero. |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
6 * |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
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7 * Arguments: |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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8 * |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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9 * R0: source address (word-aligned) |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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10 * R1: destination address (ditto) |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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11 * R2: byte count (must be a multiple of 4) |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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12 */ |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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13 |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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14 .text |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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15 .code 32 |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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16 |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
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17 .globl bcopy_aligned_words |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
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18 bcopy_aligned_words: |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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19 1: ldr r3, [r0], #4 |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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20 str r3, [r1], #4 |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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21 subs r2, r2, #4 |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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22 bhi 1b |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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23 bx lr |