Martin Michelsen
19 lines
725 B
ArmAsm
19 lines
725 B
ArmAsm
# This macro clears the data and instruction caches at the beginning of each
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# function. This is necessary because apparently some versions of PSO don't do
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# this correctly by themselves.
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# This macro expects to be run immediately at the entrypoint (usually the start
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# label) for all functions. It returns the original return address in r12, and
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# the address of the start label in r11.
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mflr r12 # r12 = address to return to
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mfctr r3 # r3 = address of start label (this code is called via bctrl)
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addi r4, r3, 0x7C00 # r4 = end of relevant region
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InitClearCaches__next_cache_block:
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dcbst r0, r3
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sync
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icbi r0, r3
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addi r3, r3, 0x20
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cmpl r3, r4
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blt InitClearCaches__next_cache_block
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isync
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