84 lines
2.6 KiB
Forth
84 lines
2.6 KiB
Forth
type channel {
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id: (handle array byte)
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name: (handle array byte)
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posts: (handle array int) # item indices
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newest-post-index: int
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}
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type user {
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id: (handle array byte)
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name: (handle array byte)
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real-name: (handle array byte)
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avatar: (handle image)
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}
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type item {
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id: (handle array byte)
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channel: (handle array byte)
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by: int # user index
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text: (handle array byte)
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parent: int # item index
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}
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type post {
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root: int # item index
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comments: (handle array int) # item indices
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}
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# globals:
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# users: (handle array user)
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# channels: (handle array channel)
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# items: (handle array item)
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#
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# flows:
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# channel -> posts
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# user -> posts
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# post -> comments
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# keywords -> posts|comments
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# I try to put all the static buffer sizes in this function.
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fn main screen: (addr screen), keyboard: (addr keyboard), data-disk: (addr disk) {
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# load entire disk contents to a single enormous stream
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draw-text-wrapping-right-then-down-from-cursor-over-full-screen screen, "loading data disk..", 3/fg 0/bg
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var s-h: (handle stream byte) # the stream is too large to put on the stack
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var s-ah/eax: (addr handle stream byte) <- address s-h
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populate-stream s-ah, 0x4000000
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var _s/eax: (addr stream byte) <- lookup *s-ah
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var s/ebx: (addr stream byte) <- copy _s
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load-sectors data-disk, 0/lba, 0x20000/sectors, s
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draw-text-wrapping-right-then-down-from-cursor-over-full-screen screen, "done", 3/fg 0/bg
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# parse global data structures out of the stream
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var users-h: (handle array user)
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var users-ah/eax: (addr handle array user) <- address users-h
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populate users-ah, 0x800
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var _users/eax: (addr array user) <- lookup *users-ah
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var users/edi: (addr array user) <- copy _users
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var channels-h: (handle array channel)
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var channels-ah/eax: (addr handle array channel) <- address channels-h
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populate channels-ah, 0x20
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var _channels/eax: (addr array channel) <- lookup *channels-ah
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var channels/esi: (addr array channel) <- copy _channels
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var items-h: (handle array item)
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var items-ah/eax: (addr handle array item) <- address items-h
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populate items-ah, 0x10000
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var _items/eax: (addr array item) <- lookup *items-ah
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var items/edx: (addr array item) <- copy _items
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parse s, users, channels, items
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# render
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var env-storage: environment
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var env/ebx: (addr environment) <- address env-storage
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{
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render-environment env, users, channels, items
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{
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var key/eax: byte <- read-key keyboard
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compare key, 0
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loop-if-=
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update-environment env, key
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}
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loop
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}
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}
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fn parse s: (addr stream byte), users: (addr array user), channels: (addr array channel), items: (addr array item) {
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}
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