FreeCalypso > hg > freecalypso-sw
annotate target-utils/libcommon/serflush.S @ 122:28f967578233
RVT compiles
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Thu, 31 Oct 2013 04:37:17 +0000 |
parents | 1a3bbab2ea26 |
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1a3bbab2ea26
loadagent: jump command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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1 #include "ns16550.h" |
1a3bbab2ea26
loadagent: jump command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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2 |
1a3bbab2ea26
loadagent: jump command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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3 .text |
1a3bbab2ea26
loadagent: jump command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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4 .code 32 |
1a3bbab2ea26
loadagent: jump command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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5 .global serial_flush |
1a3bbab2ea26
loadagent: jump command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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6 serial_flush: |
1a3bbab2ea26
loadagent: jump command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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7 ldr r1, =uart_base |
1a3bbab2ea26
loadagent: jump command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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8 ldr r2, [r1] |
1a3bbab2ea26
loadagent: jump command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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9 1: ldrb r3, [r2, #NS16550_LSR] |
1a3bbab2ea26
loadagent: jump command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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changeset
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10 tst r3, #NS16550_LSR_TEMP |
1a3bbab2ea26
loadagent: jump command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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11 beq 1b |
1a3bbab2ea26
loadagent: jump command implemented
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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12 bx lr |