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author | Kartik K. Agaram <vc@akkartik.com> | 2021-04-15 21:40:48 -0700 |
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committer | Kartik K. Agaram <vc@akkartik.com> | 2021-04-15 21:40:48 -0700 |
commit | 5b20f177b6743f9a72b4a4b38da973a33f3f4ced (patch) | |
tree | c07782be52e8615721c11bb04c253a20c516d6d1 /shell/global.mu | |
parent | 9d367ec2ed0091e1042f1cc8cf10c78d134dac3c (diff) | |
download | mu-5b20f177b6743f9a72b4a4b38da973a33f3f4ced.tar.gz |
shell: restore bindings after restart
Diffstat (limited to 'shell/global.mu')
-rw-r--r-- | shell/global.mu | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/shell/global.mu b/shell/global.mu index eb88d5fe..94c334e1 100644 --- a/shell/global.mu +++ b/shell/global.mu @@ -44,6 +44,27 @@ fn initialize-globals _self: (addr global-table) { # keep sync'd with render-primitives } +fn load-globals in: (addr handle cell), self: (addr global-table) { + var remaining-ah/esi: (addr handle cell) <- copy in + { + var _remaining/eax: (addr cell) <- lookup *remaining-ah + var remaining/ecx: (addr cell) <- copy _remaining + var done?/eax: boolean <- nil? remaining + compare done?, 0/false + break-if-!= + var curr-ah/eax: (addr handle cell) <- get remaining, left + var curr/eax: (addr cell) <- lookup *curr-ah + remaining-ah <- get remaining, right + var name-ah/ecx: (addr handle cell) <- get curr, left + var value-ah/ebx: (addr handle cell) <- get curr, right + var name/eax: (addr cell) <- lookup *name-ah + var name-data-ah/eax: (addr handle stream byte) <- get name, text-data + var name-data/eax: (addr stream byte) <- lookup *name-data-ah + append-global-binding-of-stream self, name-data, *value-ah + loop + } +} + fn write-globals out: (addr stream byte), _self: (addr global-table) { var self/esi: (addr global-table) <- copy _self write out, " (globals . (\n" @@ -227,6 +248,22 @@ fn append-global _self: (addr global-table), name: (addr array byte), value: (ha copy-handle value, curr-value-ah } +fn append-global-binding-of-stream _self: (addr global-table), name: (addr stream byte), value: (handle cell) { + var self/esi: (addr global-table) <- copy _self + var final-index-addr/ecx: (addr int) <- get self, final-index + increment *final-index-addr + var curr-index/ecx: int <- copy *final-index-addr + var data-ah/eax: (addr handle array global) <- get self, data + var data/eax: (addr array global) <- lookup *data-ah + var curr-offset/esi: (offset global) <- compute-offset data, curr-index + var curr/esi: (addr global) <- index data, curr-offset + var curr-name-ah/eax: (addr handle array byte) <- get curr, name + rewind-stream name + stream-to-array name, curr-name-ah + var curr-value-ah/eax: (addr handle cell) <- get curr, value + copy-handle value, curr-value-ah +} + fn lookup-symbol-in-globals _sym: (addr cell), out: (addr handle cell), _globals: (addr global-table), trace: (addr trace), screen-cell: (addr handle cell), keyboard-cell: (addr handle cell) { var sym/eax: (addr cell) <- copy _sym var sym-name-ah/eax: (addr handle stream byte) <- get sym, text-data |