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3B2: Interrupt Refactor and DEMON ROM

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- This change introduces a full refactor of the interrupt subsystem
  for the system board (SBD) and the I/O bus (CIO). Interrupt decode
  should now be significantly faster, and not require an expensive
  calculation on every step.

- The TIMER device has been split into Rev 2 and Rev 3
  implementations.

- The optional 3B2/400 Debug Monitor ROMs can now be booted by passing
  the "DEMON" argument to the 3B2/400 simulator BOOT command. Any
  of the following will cause the Debug Monitor ROM to be booted
  instead of the standard 3B2/400 ROM:

     sim> BOOT DEMON
     sim> BOOT CPU DEMON
     sim> BOOT DEMON CPU
This commit is contained in:
Seth Morabito
2021-08-24 06:35:49 -07:00
parent d1a720debd
commit 9d849283a4
41 changed files with 1786 additions and 765 deletions
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21
makefile
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@@ -2035,21 +2035,22 @@ ATT3B2D = ${SIMHD}/3B2
ATT3B2M400 = ${ATT3B2D}/3b2_cpu.c ${ATT3B2D}/3b2_sys.c \
${ATT3B2D}/3b2_rev2_sys.c ${ATT3B2D}/3b2_rev2_mmu.c \
${ATT3B2D}/3b2_rev2_mau.c ${ATT3B2D}/3b2_rev2_csr.c \
${ATT3B2D}/3b2_stddev.c ${ATT3B2D}/3b2_mem.c \
${ATT3B2D}/3b2_iu.c ${ATT3B2D}/3b2_if.c \
${ATT3B2D}/3b2_id.c ${ATT3B2D}/3b2_dmac.c \
${ATT3B2D}/3b2_io.c ${ATT3B2D}/3b2_ports.c \
${ATT3B2D}/3b2_ctc.c ${ATT3B2D}/3b2_ni.c
${ATT3B2D}/3b2_rev2_timer.c ${ATT3B2D}/3b2_stddev.c \
${ATT3B2D}/3b2_mem.c ${ATT3B2D}/3b2_iu.c \
${ATT3B2D}/3b2_if.c ${ATT3B2D}/3b2_id.c \
${ATT3B2D}/3b2_dmac.c ${ATT3B2D}/3b2_io.c \
${ATT3B2D}/3b2_ports.c ${ATT3B2D}/3b2_ctc.c \
${ATT3B2D}/3b2_ni.c
ATT3B2M400_OPT = -DUSE_INT64 -DUSE_ADDR64 -DREV2 -I ${ATT3B2D} ${NETWORK_OPT}
ATT3B2M600 = ${ATT3B2D}/3b2_cpu.c ${ATT3B2D}/3b2_sys.c \
${ATT3B2D}/3b2_rev3_sys.c ${ATT3B2D}/3b2_rev3_mmu.c \
${ATT3B2D}/3b2_rev2_mau.c ${ATT3B2D}/3b2_rev3_csr.c \
${ATT3B2D}/3b2_stddev.c ${ATT3B2D}/3b2_mem.c \
${ATT3B2D}/3b2_iu.c ${ATT3B2D}/3b2_if.c \
${ATT3B2D}/3b2_dmac.c ${ATT3B2D}/3b2_io.c \
${ATT3B2D}/3b2_ports.c ${ATT3B2D}/3b2_scsi.c \
${ATT3B2D}/3b2_ni.c
${ATT3B2D}/3b2_rev3_timer.c ${ATT3B2D}/3b2_stddev.c \
${ATT3B2D}/3b2_mem.c ${ATT3B2D}/3b2_iu.c \
${ATT3B2D}/3b2_if.c ${ATT3B2D}/3b2_dmac.c \
${ATT3B2D}/3b2_io.c ${ATT3B2D}/3b2_ports.c \
${ATT3B2D}/3b2_scsi.c ${ATT3B2D}/3b2_ni.c
ATT3B2M600_OPT = -DUSE_INT64 -DUSE_ADDR64 -DREV3 -I ${ATT3B2D} ${NETWORK_OPT}
SIGMAD = ${SIMHD}/sigma