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└─⟦8527c1e9b⟧ Bits:30000544 8mm tape, Rational 1000, Arrival backup of disks in PAM's R1000 └─ ⟦cfc2e13cd⟧ »Space Info Vol 2« └─⟦03931f93a⟧ └─⟦this⟧
-- Copyright 1987, 1988 Verdix Corporation ---------------------------------------------------------------------- -- This package provides the M68000 processor family machine -- configuration definitions and data structures used by the RTS Kernel. ---------------------------------------------------------------------- package v_cpu_conf is pragma suppress(ALL_CHECKS); pragma suppress(EXCEPTION_TABLES); pragma not_elaborated; -- -- Default trap numbers -- DEFAULT_KRN_TRAP: constant := 0; DEFAULT_TDM_TRAP: constant := 15; -- -- Vector index for Trap 0 -- TRAP_0_VECTOR_NUMBER: constant := 32; -- -- Status register masks -- S_MASK: constant := 16#2000#; -- Supervisor/User state NOT_S_MASK: constant := 16#dfff#; M_MASK: constant := 16#1000#; -- Master/interrupt state NOT_M_MASK: constant := 16#efff#; IPL_MASK: constant := 16#0700#; -- Interrupt priority level NOT_IPL_MASK: constant := 16#f8ff#; -- Supervisor/User state bit number in upper byte of status register S_BIT: constant := 5; -- Master/interrupt state bit number in upper byte of status register M_BIT: constant := 4; -- Kernel status register: trace disabled, supervisor state, interrupt -- state, interrupt priority = 7 (disabled) KRN_STATUS: constant := 16#2700#; -- User status register: trace disabled, user state, interrupt state, -- interrupt priority = 0 (enabled) USER_STATUS: constant := 16#0000#; -- -- Exception stack frame offsets, masks and format types -- SR_FRAME_OFFSET: constant := 0; PC_FRAME_OFFSET: constant := 2; FORMAT_VECTOR_FRAME_OFFSET: constant := 6; INSTR_ADDR_FRAME_OFFSET: constant := 8; MID_INSTR_INTERNAL_FRAME_OFFSET: constant := 12; FORMAT_MASK: constant := 16#f000#; VECTOR_OFFSET_MASK: constant := 16#0fff#; SHORT_FORMAT: constant := 16#0000#; THROWAWAY_FORMAT: constant := 16#1000#; NORMAL_SIX_WORD_FORMAT: constant := 16#2000#; COPROCESSOR_MID_INSTR_FORMAT: constant := 16#9000#; end v_cpu_conf;