FreeCalypso > hg > freecalypso-sw
annotate gsm-fw/libiram/bcopy_chunk32.S @ 862:1b63cc243341
fixed psa_IsVldOwnId() miscompilation that blocked +CFUN enabling
author | Space Falcon <falcon@ivan.Harhan.ORG> |
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date | Sun, 03 May 2015 21:23:34 +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>
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2 * bcopy_32byte_chunks() 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
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3 * but works on large chunks, specifically: |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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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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5 * - both addresses must 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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6 * - the count must be a non-zero multiple of 32 bytes; |
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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7 * - the source and destination memory regions must not overlap. |
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 * 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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10 * |
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 * 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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12 * 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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13 * R2: byte count (must be a multiple of 32) |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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changeset
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14 */ |
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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15 |
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 .text |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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17 .code 32 |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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18 |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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19 .globl bcopy_32byte_chunks |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
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20 bcopy_32byte_chunks: |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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21 stmfd sp!, {r4-r9} |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
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22 1: ldmia r0!, {r3-r9,r12} |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
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23 stmia r1!, {r3-r9,r12} |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
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24 subs r2, r2, #0x20 |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
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25 bhi 1b |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
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26 ldmfd sp!, {r4-r9} |
cbc49d533b7d
gsm-fw: new implementation of bzero() and some specialized bcopy variants
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
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27 bx lr |