19 lines
617 B
PHP
19 lines
617 B
PHP
constant SI_BASE($A480) // $04800000 Serial Interface (SI) Base
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constant SI_DRAM_ADDR($00) // $04800000 DRAM Address
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constant SI_PIF_ADDR_RD64B($04) // $04800004 Address Read 64B
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//*RESERVED*($08) // $04800008 Reserved
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//*RESERVED*($0C) // $0480000C Reserved
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constant SI_PIF_ADDR_WR64B($10) // $04800010 Address Write 64B
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//*RESERVED*($14) // $04800014 Reserved
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constant SI_STATUS($18) // $04800018 Status
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macro SI_WAIT() {
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lui a0, SI_BASE
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-
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lw t0, SI_STATUS(a0)
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andi t0, 0x0003
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sltu t0, r0, t0
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bnez t0,-
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nop
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}
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