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17 lines
770 B
17 lines
770 B
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; RC2014 Z180 HARDWARE DEFINITIONS
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;
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SBC_BASE .EQU $60 ; I/O BASE ADDRESS FOR ONBOARD PERIPHERALS
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;
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MPGSEL_0 .EQU SBC_BASE + $18 ; BANK_0 PAGE SELECT REGISTER (WRITE ONLY)
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MPGSEL_1 .EQU SBC_BASE + $19 ; BANK_1 PAGE SELECT REGISTER (WRITE ONLY)
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MPGSEL_2 .EQU SBC_BASE + $1A ; BANK_2 PAGE SELECT REGISTER (WRITE ONLY)
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MPGSEL_3 .EQU SBC_BASE + $1B ; BANK_3 PAGE SELECT REGISTER (WRITE ONLY)
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MPGENA .EQU SBC_BASE + $1C ; PAGING ENABLE REGISTER - BIT 0 = 1 (WRITE ONLY)
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;
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RTC .EQU SBC_BASE + $10 ; ADDRESS OF RTC LATCH AND INPUT PORT
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PPIBASE .EQU SBC_BASE + $00 ; PPI 82C55 I/O IS DECODED TO PORT 60-67
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SIOBASE .EQU SBC_BASE + $08 ; 16550 UART I/O BASE ADDRESS
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;
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Z180_BASE .EQU $C0 ; I/O BASE ADDRESS FOR INTERNAL Z180 REGISTERS
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#INCLUDE "z180.inc"
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