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Memory controller implemented.

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Anachronaut
2026-08-15 20:43:53 -04:00
parent c4b2c27a2d
commit 04dfcd707b
32 changed files with 1842 additions and 21 deletions
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Tests/manifest
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@@ -46,6 +46,33 @@ dispatchTest | testPrograms/dispatchTest.asm | run | -
# ---- Moving an ALU result back into an operand register ----
moveQTest | testPrograms/moveQTest.asm | run | - | -
# ---- The memory controller ----
# Reading and writing Program Memory, which the instruction set deliberately cannot do,
# and the bank table that says what is reachable.
controllerReadTest | testPrograms/controllerReadTest.asm | run | - | -
controllerWriteTest | testPrograms/controllerWriteTest.asm | run | - | -
# Block transfers: between banks, within one, overlapping, and one that is refused.
blitTest | testPrograms/blitTest.asm | run | - | -
# A program that loads a program: blits code into Program Memory, installs a vector at
# run time, and calls it. If the vector install ever silently failed, the SWI would fault
# with "no handler" rather than printing, so this test cannot pass by accident.
loaderTest | testPrograms/loaderTest.asm | run | - | -
# Giving a bank number to a device's memory, which is what an OS does at boot.
registerBankTest | testPrograms/registerBankTest.asm | run | - | -
# The fence: raised, walked into, clipped by a blit, read through, and lowered again.
fenceTest | testPrograms/fenceTest.asm | run | - | -
# Meant to fault: a bank knows how big it is.
bankBoundsTest | testPrograms/bankBoundsTest.asm | run | - | -
# ---- A device saying no ----
# Refusing is not interrupting: it stops the instruction that asked, rather than asking
# for attention later. The device on port 0x11 refuses everything so this path stays
# tested before the memory controller becomes its only real user.
refusalTest | testPrograms/refusalTest.asm | run | - | -
# The same, with nothing installed to catch it. Meant to fault.
refusalFaultTest | testPrograms/refusalFaultTest.asm | run | - | -
# ---- Asking the machine what it is made of ----
registryTest | testPrograms/registryTest.asm | run | - | -