24 lines
1.3 KiB
PHP
24 lines
1.3 KiB
PHP
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constant PI_BASE($A460) // $04600000..$04600033 Peripheral Interface (PI) Base Register
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constant PI_DRAM_ADDR($00) // $04600000..$04600003 PI: DRAM Address Register
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constant PI_CART_ADDR($04) // $04600004..$04600007 PI: Pbus (Cartridge) Address Register
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constant PI_RD_LEN($08) // $04600008..$0460000B PI: Read Length Register
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constant PI_WR_LEN($0C) // $0460000C..$0460000F PI: Write length register
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constant PI_STATUS($10) // $04600010..$04600013 PI: Status Register
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constant PI_BSD_DOM1_LAT($14) // $04600014..$04600017 PI: Domain 1 Latency Register
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constant PI_BSD_DOM1_PWD($18) // $04600018..$0460001B PI: Domain 1 Pulse Width Register
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constant PI_BSD_DOM1_PGS($1C) // $0460001C..$0460001F PI: Domain 1 Page Size Register
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constant PI_BSD_DOM1_RLS($20) // $04600020..$04600023 PI: Domain 1 Release Register
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constant PI_BSD_DOM2_LAT($24) // $04600024..$04600027 PI: Domain 2 Latency Register
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constant PI_BSD_DOM2_PWD($28) // $04600028..$0460002B PI: Domain 2 Pulse Width Register
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constant PI_BSD_DOM2_PGS($2C) // $0460002C..$0460002F PI: Domain 2 Page Size Register
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constant PI_BSD_DOM2_RLS($30) // $04600030..$04600033 PI: Domain 2 Release Register
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macro PI_WAIT() {
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lui t5, PI_BASE
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-
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lw t0, PI_STATUS(t5)
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andi t0, t0, 3
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bnez t0,-
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nop
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}
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