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hwdefs.s
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hwdefs.s
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.equiv PR7, 7 * 040 # highest priority to the processor
# MTPS PR7 disables interrupts
.equiv PR0, 0 # lowest priority to the processor
# MTPS PR0 enables interrupts
# CPU USER mode interrupt vectors and priorities
# Vect Prty Source
# 04 1 input/output RPLY timeout
# 04 2 illegal addressing mode
# 010 2 unknown instruction/HALT mode command in USER mode
# 014 3 T-bit
# 014 - BPT instruction
# 020 - IOT instruction
# 024 4 ACLO
# 030 - EMT instruction
# 034 - TRAP instruction
# 060 TTY out (channel 0 out)
# 064 TTY in (channel 0 in)
# 0100 6 EVNT (Vsync)
# 0370 serial (C2)
# 0374 serial (C2)
# 0380 serial (LAN)
# 0384 serial (LAN)
# 0460 channel 1 out
# 0464 channel 1 in
# 0474 channel 2 in
# CPU: bitplanes registers
.equiv CBPADR, 0176640 # CPU bitplanes address register
.equiv CBP1DT, 0176642 # CPU bitplane 1 data register
.equiv CBP2DT, 0176643 # CPU bitplane 2 data register
.equiv CBP12D, CBP1DT # CPU bitplanes 1 and 2 data register
# alias for word access
# CPU: to PPU communication channels
# serial port
.equiv S2IST, 0176570
.equiv S2IDT, 0176572
.equiv S2OST, 0176574
.equiv S2ODT, 0176576
# parallel port access channel
.equiv CCH1II, 0460 # CPU channel 1 in state interrupt
.equiv CCH1IS, 0176660 # CPU channel 1 in state register
.equiv CCH1ID, 0176662 # CPU channel 1 in data register
.equiv CCH1OI, 0464 # CPU channel 1 out state interrput
.equiv CCH1OS, 0176664 # CPU channel 1 out state register
.equiv CCH1OD, 0176666 # CPU channel 1 out data register
# command channel
.equiv CCH2OI, 0474 # CPU channel 2 out state interrupt
.equiv CCH2OS, 0176674 # CPU channel 2 out state register
.equiv CCH2OD, 0176676 # CPU channel 2 out data register
# terminal emulation channel
.equiv CCH0II, 060 # CPU channel 0 in state interrupt
.equiv CCH0IS, 0177560 # CPU channel 0 in state register
.equiv CCH0ID, 0177562 # CPU channel 0 in data register
.equiv CCH0OI, 064 # CPU channel 0 out state interrupt
.equiv CCH0OS, 0177564 # CPU channel 0 out state register
.equiv CCH0OD, 0177566 # CPU channel 0 out data register
.equiv TTYIST, CCH0IS # TTY in state
.equiv TTYIDT, CCH0ID # TTY in data
.equiv TTYOST, CCH0OS # TTY out state
.equiv TTYODT, CCH0OD # TTY out data
# SRAM module register
.equiv WNDRGS, 0176000 # windows registers
.equiv WNDRGA, 0176000 # window a register
.equiv WNDRGB, 0176001 # window b register
################################################################################
# PPU registers #
################################################################################
# PPU: bitplanes registers
.equiv PBPADR, 0177010 # PPU bitplanes address register
.equiv PBP0DT, 0177012 # PPU bitplane 0 data register
.equiv PBP1DT, 0177014 # PPU bitplane 1 data register
.equiv PBP2DT, 0177015 # PPU bitplane 2 data register
.equiv PBP12D, PBP1DT # alias for word access
.equiv DTSCOL, 0177016 # PPU dots color
.equiv BP01BC, 0177020 # PPU bitplanes 0/1 background color
.equiv BP12BC, 0177022 # PPU bitplanes 1/2 background color
.equiv DTSOCT, 0177024 # PPU dots octet
.equiv PBPMSK, 0177026 # PPU bitplanes mask register
.equiv PASWCR, 0177054 # PPU address space window control register
# PPU: to CPU communication channels
.equiv PCH0II, 0320 # PPU channel 0 in data interrupt
.equiv PCH0ID, 0177060 # PPU channel 0 in data register
.equiv PCH1II, 0330 # PPU channel 1 in data interrupt
.equiv PCH1ID, 0177062 # PPU channel 1 in data register
.equiv PCH2II, 0340 # PPU channel 2 in data interrupt
.equiv PCH2ID, 0177064 # PPU channel 2 in data register
.equiv PCHSIS, 0177066 # PPU channels 0, 1, 2 in - state register
.equiv Ch0StateInInt, 0b00000001 # channel 0 interrupt allowed
.equiv Ch1StateInInt, 0b00000010 # channel 1 interrupt allowed
.equiv Ch2StateInInt, 0b00000100 # channel 2 interrupt allowed
.equiv Ch0InReady, 0b00001000 # channel 0 ready
.equiv Ch1InReady, 0b00010000 # channel 1 ready
.equiv Ch2InReady, 0b00100000 # channel 2 ready
.equiv IntOnCPU_RESET, 0b01000000 # interrupt on RESET on CPU bus
.equiv PCH0OI, 0324 # PPU channel 0 out data interrupt
.equiv PCH0OD, 0177070 # PPU channel 0 out data register
.equiv PCH1OI, 0334 # PPU channel 1 out data interrupt
.equiv PCH1OD, 0177072 # PPU channel 1 out data register
.equiv PCHSOS, 0177076 # PPU channels 0/1 out - state register
.equiv RSTINT, 0314 # RESET on CPU bus interrupt
# PPU: programmable parallel interface
.equiv PAR.A, 0177100 # parallel port A data register
.equiv PAR.B, 0177101 # parallel port B data register
.equiv PAR.C, 0177102 # parallel port C data register
.equiv PARCTL, 0177103 # parallel port control byte
# PPU: floppy disk controller
.equiv FDCSTS, 0177130 # floppy disk controller state register
.equiv FDCDT, 0177132 # floppy disk controller data register
# PPU: keyboard
.equiv KBINT, 0300 # keyboard interrupt
.equiv KBSTAT, 0177700 # keyboard state register
.equiv KBDATA, 0177702 # keyboard data register
# PPU: Programmable timer
.equiv TMRST , 0177710 # State register
.equiv TMREVN, 0310 # External event interrupt
.equiv TMRINT, 0304 # Programmable timer interrupt
.equiv TMRBRG, 0177712 # Buffer register
.equiv TMRCST, 0177714 # Current state register
.equiv CTRLRG, 0177716 # system control register