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annotate target-utils/libbase/waitarm.S @ 471:8f3fe2d1fda5

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Makefile hierarchy: allow CC and CFLAGS to be overridden from the top
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 12 Feb 2019 00:20:50 +0000
parents 6228d27738d1
children 06ad5e30e8d0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
453
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
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2 * This assembly module provides a wait_ARM_cycles() function just like
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
Mychaela Falconia <falcon@freecalypso.org>
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3 * in TI's firmware; it is meant to gradually replace and phase out
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
Mychaela Falconia <falcon@freecalypso.org>
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4 * osmo_delay_ms(). One loop count for this function equals 5 ARM clock
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
Mychaela Falconia <falcon@freecalypso.org>
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5 * cycles when running out of IRAM.
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
Mychaela Falconia <falcon@freecalypso.org>
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6 */
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
Mychaela Falconia <falcon@freecalypso.org>
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7
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
Mychaela Falconia <falcon@freecalypso.org>
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8 .text
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
Mychaela Falconia <falcon@freecalypso.org>
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9 .code 32
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
Mychaela Falconia <falcon@freecalypso.org>
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10 .globl wait_ARM_cycles
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
Mychaela Falconia <falcon@freecalypso.org>
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11 wait_ARM_cycles:
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
Mychaela Falconia <falcon@freecalypso.org>
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12 cmp r0, #0
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
Mychaela Falconia <falcon@freecalypso.org>
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13 bxeq lr
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
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14 1: sub r0, r0, #1
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
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15 cmp r0, #0
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
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16 bne 1b
6228d27738d1 target-utils: wait_ARM_cycles() added to libbase
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17 bx lr