65 lines
2.1 KiB
Fennel
65 lines
2.1 KiB
Fennel
(local util (require :lib.util))
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(local {: spawn : kill} (util.require :lib.spawn))
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(local nrepl (require :link.nrepl))
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(local Session (require :link.nrepl-session))
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(local bencode (require :lib.bencode))
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(local lume (require :lib.lume))
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(fn start-mame [platform]
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(spawn [:mame :-debug :-plugins :-pluginspath "/home/jeremy/src;/usr/share/mame/plugins" :-plugin :jeejah platform]))
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(local Machine (Session:extend))
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(fn Machine.new [self]
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(Machine.super.new self {:out (fn []) :value (fn [])}))
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(fn Machine.boot [self]
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(when (not self.pid)
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(set self.pid (start-mame :apple2p))))
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(fn Machine.run [self]
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(self:boot)
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(self:connect))
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(fn Machine.die [self]
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(self:disconnect)
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(when self.pid
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(kill (- self.pid) 1)
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(set self.pid nil)))
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(fn Machine.running? [self] self.pid)
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(fn Machine.connected? [self] self.session)
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(fn Machine.connect [self]
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(util.in-coro (fn []
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(when (not (nrepl:connected?))
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(util.waitfor
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#(if (nrepl:connected?) true
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(do (pcall #(nrepl:connect)) false))))
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(self:init-session))))
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(fn Machine.disconnect [self]
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(when (nrepl:connected?) (nrepl:disconnect))
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(set self.session nil))
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(fn Machine.write [self addr bytes]
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(self:send
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{:op :eval
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:code
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"(let [bencode (require :bencode)
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{: addr : bytes} (bencode.decode (io.read))
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mem (-> (manager:machine) (. :devices ::maincpu :spaces :program))]
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(print :writing (bytes:len) :to addr)
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(for [i 1 (bytes:len)]
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(mem:write_u8 (+ addr i -1) (string.byte (bytes:sub i i)))))"}
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{:status/need-input #(self:send-oob {:op :stdin :stdin (bencode.encode {: addr : bytes})})}))
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(fn Machine.reboot [self] (self:eval "(: (manager:machine) :hard_reset)"))
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(fn Machine.coro-eval [self code]
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(var result nil)
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(self:eval code
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(self:coro-handlers (coroutine.running) {:out #(set result $2)}))
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(coroutine.yield)
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(or result "<no result?>"))
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(fn Machine.dbgcmd [self cmd]
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(self:eval (.. "(-> (manager:machine) (: :debugger) (: :command \"" cmd "\"))")))
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(fn Machine.continue [self] (self:dbgcmd :go))
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(fn Machine.step [self] (self:dbgcmd :s))
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(fn Machine.stop-at [self addr])
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(Machine:new)
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Machine
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