651 lines
22 KiB
Forth
651 lines
22 KiB
Forth
type global {
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name: (handle array byte)
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value: (handle cell)
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}
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type global-table {
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data: (handle array global)
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final-index: int
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}
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fn initialize-globals _self: (addr global-table) {
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var self/esi: (addr global-table) <- copy _self
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var data-ah/eax: (addr handle array global) <- get self, data
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populate data-ah, 0x10
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append-primitive self, "+"
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append-primitive self, "-"
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append-primitive self, "*"
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append-primitive self, "/"
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append-primitive self, "sqrt"
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append-primitive self, "car"
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append-primitive self, "cdr"
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append-primitive self, "cons"
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append-primitive self, "="
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append-primitive self, "print"
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# TODO: isolate screens per-sandbox
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var screen-storage: (handle cell)
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var screen-ah/ecx: (addr handle cell) <- address screen-storage
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new-screen screen-ah, 5/width, 4/height
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append-global self, "screen", *screen-ah
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}
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fn render-globals screen: (addr screen), _self: (addr global-table), xmin: int, ymin: int, xmax: int, ymax: int {
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clear-rect screen, xmin, ymin, xmax, ymax, 0x12/bg=almost-black
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var self/esi: (addr global-table) <- copy _self
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# render primitives
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var bottom-line/ecx: int <- copy ymax
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bottom-line <- decrement
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var data-ah/eax: (addr handle array global) <- get self, data
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var data/eax: (addr array global) <- lookup *data-ah
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var curr-index/edx: int <- copy 1
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var x/edi: int <- copy xmin
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{
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var curr-offset/ebx: (offset global) <- compute-offset data, curr-index
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var curr/ebx: (addr global) <- index data, curr-offset
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var continue?/eax: boolean <- primitive-global? curr
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compare continue?, 0/false
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break-if-=
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var curr-name-ah/eax: (addr handle array byte) <- get curr, name
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var _curr-name/eax: (addr array byte) <- lookup *curr-name-ah
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var curr-name/ebx: (addr array byte) <- copy _curr-name
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{
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var skip?/eax: boolean <- string-equal? curr-name, "screen"
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compare skip?, 0/false
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break-if-!=
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var tmpx/eax: int <- copy x
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tmpx <- draw-text-rightward screen, curr-name, tmpx, xmax, bottom-line, 0x2a/fg=orange, 0x12/bg=almost-black
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tmpx <- draw-text-rightward screen, " ", tmpx, xmax, bottom-line, 7/fg=grey, 0x12/bg=almost-black
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x <- copy tmpx
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}
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curr-index <- increment
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loop
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}
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var lowest-index/edi: int <- copy curr-index
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var y/ecx: int <- copy ymin
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var data-ah/eax: (addr handle array global) <- get self, data
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var data/eax: (addr array global) <- lookup *data-ah
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var final-index/edx: (addr int) <- get self, final-index
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var curr-index/edx: int <- copy *final-index
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{
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compare curr-index, lowest-index
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break-if-<
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compare y, ymax
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break-if->=
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{
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var curr-offset/ebx: (offset global) <- compute-offset data, curr-index
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var curr/ebx: (addr global) <- index data, curr-offset
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var curr-name-ah/eax: (addr handle array byte) <- get curr, name
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var _curr-name/eax: (addr array byte) <- lookup *curr-name-ah
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var curr-name/edx: (addr array byte) <- copy _curr-name
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var skip?/eax: boolean <- string-equal? curr-name, "screen"
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compare skip?, 0/false
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break-if-!=
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var x/eax: int <- copy xmin
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x, y <- draw-text-wrapping-right-then-down screen, curr-name, xmin, ymin, xmax, ymax, x, y, 0x2a/fg=orange, 0x12/bg=almost-black
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x, y <- draw-text-wrapping-right-then-down screen, " <- ", xmin, ymin, xmax, ymax, x, y, 7/fg=grey, 0x12/bg=almost-black
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var curr-value/edx: (addr handle cell) <- get curr, value
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var s-storage: (stream byte 0x100)
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var s/ebx: (addr stream byte) <- address s-storage
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print-cell curr-value, s, 0/no-trace
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x, y <- draw-stream-wrapping-right-then-down screen, s, xmin, ymin, xmax, ymax, x, y, 0x3/fg=cyan, 0x12/bg=almost-black
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}
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curr-index <- decrement
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y <- increment
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loop
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}
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}
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fn primitive-global? _x: (addr global) -> _/eax: boolean {
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var x/eax: (addr global) <- copy _x
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var value-ah/eax: (addr handle cell) <- get x, value
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var value/eax: (addr cell) <- lookup *value-ah
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compare value, 0/null
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{
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break-if-!=
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return 0/false
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}
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var value-type/eax: (addr int) <- get value, type
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compare *value-type, 4/primitive
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{
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break-if-=
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return 0/false
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}
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return 1/true
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}
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fn append-primitive _self: (addr global-table), name: (addr array byte) {
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var self/esi: (addr global-table) <- copy _self
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var final-index-addr/ecx: (addr int) <- get self, final-index
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increment *final-index-addr
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var curr-index/ecx: int <- copy *final-index-addr
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var data-ah/eax: (addr handle array global) <- get self, data
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var data/eax: (addr array global) <- lookup *data-ah
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var curr-offset/esi: (offset global) <- compute-offset data, curr-index
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var curr/esi: (addr global) <- index data, curr-offset
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var curr-name-ah/eax: (addr handle array byte) <- get curr, name
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copy-array-object name, curr-name-ah
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var curr-value-ah/eax: (addr handle cell) <- get curr, value
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new-primitive-function curr-value-ah, curr-index
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}
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fn append-global _self: (addr global-table), name: (addr array byte), value: (handle cell) {
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var self/esi: (addr global-table) <- copy _self
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var final-index-addr/ecx: (addr int) <- get self, final-index
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increment *final-index-addr
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var curr-index/ecx: int <- copy *final-index-addr
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var data-ah/eax: (addr handle array global) <- get self, data
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var data/eax: (addr array global) <- lookup *data-ah
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var curr-offset/esi: (offset global) <- compute-offset data, curr-index
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var curr/esi: (addr global) <- index data, curr-offset
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var curr-name-ah/eax: (addr handle array byte) <- get curr, name
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copy-array-object name, curr-name-ah
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var curr-value-ah/eax: (addr handle cell) <- get curr, value
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copy-handle value, curr-value-ah
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}
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fn lookup-symbol-in-globals _sym: (addr cell), out: (addr handle cell), _globals: (addr global-table), trace: (addr trace) {
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var sym/eax: (addr cell) <- copy _sym
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var sym-data-ah/eax: (addr handle stream byte) <- get sym, text-data
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var _sym-data/eax: (addr stream byte) <- lookup *sym-data-ah
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var sym-data/edx: (addr stream byte) <- copy _sym-data
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var globals/esi: (addr global-table) <- copy _globals
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{
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compare globals, 0
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break-if-=
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var global-data-ah/eax: (addr handle array global) <- get globals, data
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var global-data/eax: (addr array global) <- lookup *global-data-ah
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var final-index/ecx: (addr int) <- get globals, final-index
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var curr-index/ecx: int <- copy *final-index
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{
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compare curr-index, 0
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break-if-<
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var curr-offset/ebx: (offset global) <- compute-offset global-data, curr-index
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var curr/ebx: (addr global) <- index global-data, curr-offset
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var curr-name-ah/eax: (addr handle array byte) <- get curr, name
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var curr-name/eax: (addr array byte) <- lookup *curr-name-ah
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var found?/eax: boolean <- stream-data-equal? sym-data, curr-name
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{
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compare found?, 0/false
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break-if-=
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var curr-value/eax: (addr handle cell) <- get curr, value
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copy-object curr-value, out
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return
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}
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curr-index <- decrement
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loop
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}
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}
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# otherwise error "unbound symbol: ", sym
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var stream-storage: (stream byte 0x40)
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var stream/ecx: (addr stream byte) <- address stream-storage
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write stream, "unbound symbol: "
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rewind-stream sym-data
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write-stream stream, sym-data
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trace trace, "error", stream
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}
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# a little strange; goes from value to name and selects primitive based on name
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fn apply-primitive _f: (addr cell), args-ah: (addr handle cell), out: (addr handle cell), env-h: (handle cell), _globals: (addr global-table), trace: (addr trace) {
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var f/esi: (addr cell) <- copy _f
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var f-index-a/ecx: (addr int) <- get f, index-data
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var f-index/ecx: int <- copy *f-index-a
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var globals/eax: (addr global-table) <- copy _globals
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var global-data-ah/eax: (addr handle array global) <- get globals, data
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var global-data/eax: (addr array global) <- lookup *global-data-ah
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var f-offset/ecx: (offset global) <- compute-offset global-data, f-index
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var f-value/ecx: (addr global) <- index global-data, f-offset
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var f-name-ah/ecx: (addr handle array byte) <- get f-value, name
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var f-name/eax: (addr array byte) <- lookup *f-name-ah
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{
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var is-add?/eax: boolean <- string-equal? f-name, "+"
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compare is-add?, 0/false
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break-if-=
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apply-add args-ah, out, env-h, trace
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return
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}
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{
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var is-subtract?/eax: boolean <- string-equal? f-name, "-"
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compare is-subtract?, 0/false
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break-if-=
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apply-subtract args-ah, out, env-h, trace
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return
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}
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{
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var is-multiply?/eax: boolean <- string-equal? f-name, "*"
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compare is-multiply?, 0/false
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break-if-=
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apply-multiply args-ah, out, env-h, trace
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return
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}
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{
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var is-divide?/eax: boolean <- string-equal? f-name, "/"
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compare is-divide?, 0/false
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break-if-=
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apply-divide args-ah, out, env-h, trace
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return
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}
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{
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var is-square-root?/eax: boolean <- string-equal? f-name, "sqrt"
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compare is-square-root?, 0/false
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break-if-=
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apply-square-root args-ah, out, env-h, trace
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return
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}
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{
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var is-car?/eax: boolean <- string-equal? f-name, "car"
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compare is-car?, 0/false
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break-if-=
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apply-car args-ah, out, env-h, trace
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return
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}
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{
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var is-cdr?/eax: boolean <- string-equal? f-name, "cdr"
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compare is-cdr?, 0/false
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break-if-=
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apply-cdr args-ah, out, env-h, trace
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return
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}
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{
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var is-cons?/eax: boolean <- string-equal? f-name, "cons"
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compare is-cons?, 0/false
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break-if-=
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apply-cons args-ah, out, env-h, trace
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return
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}
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{
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var is-compare?/eax: boolean <- string-equal? f-name, "="
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compare is-compare?, 0/false
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break-if-=
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apply-compare args-ah, out, env-h, trace
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return
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}
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{
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var is-print?/eax: boolean <- string-equal? f-name, "print"
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compare is-print?, 0/false
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break-if-=
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apply-print args-ah, out, env-h, trace
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return
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}
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abort "unknown primitive function"
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}
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fn apply-add _args-ah: (addr handle cell), out: (addr handle cell), env-h: (handle cell), trace: (addr trace) {
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trace-text trace, "eval", "apply +"
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var args-ah/eax: (addr handle cell) <- copy _args-ah
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var _args/eax: (addr cell) <- lookup *args-ah
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var args/esi: (addr cell) <- copy _args
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var _env/eax: (addr cell) <- lookup env-h
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var env/edi: (addr cell) <- copy _env
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# TODO: check that args is a pair
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var empty-args?/eax: boolean <- nil? args
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compare empty-args?, 0/false
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{
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break-if-=
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error trace, "+ needs 2 args but got 0"
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return
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}
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# args->left->value
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var first-ah/eax: (addr handle cell) <- get args, left
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var first/eax: (addr cell) <- lookup *first-ah
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var first-type/ecx: (addr int) <- get first, type
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compare *first-type, 1/number
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{
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break-if-=
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error trace, "first arg for + is not a number"
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return
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}
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var first-value/ecx: (addr float) <- get first, number-data
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# args->right->left->value
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var right-ah/eax: (addr handle cell) <- get args, right
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#? dump-cell right-ah
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#? abort "aaa"
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var right/eax: (addr cell) <- lookup *right-ah
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# TODO: check that right is a pair
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var second-ah/eax: (addr handle cell) <- get right, left
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var second/eax: (addr cell) <- lookup *second-ah
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var second-type/edx: (addr int) <- get second, type
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compare *second-type, 1/number
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{
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break-if-=
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error trace, "second arg for + is not a number"
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return
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}
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var second-value/edx: (addr float) <- get second, number-data
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# add
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var result/xmm0: float <- copy *first-value
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result <- add *second-value
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new-float out, result
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}
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fn apply-subtract _args-ah: (addr handle cell), out: (addr handle cell), env-h: (handle cell), trace: (addr trace) {
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trace-text trace, "eval", "apply -"
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var args-ah/eax: (addr handle cell) <- copy _args-ah
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var _args/eax: (addr cell) <- lookup *args-ah
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var args/esi: (addr cell) <- copy _args
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var _env/eax: (addr cell) <- lookup env-h
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var env/edi: (addr cell) <- copy _env
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# TODO: check that args is a pair
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var empty-args?/eax: boolean <- nil? args
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compare empty-args?, 0/false
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{
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break-if-=
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error trace, "- needs 2 args but got 0"
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return
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}
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# args->left->value
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var first-ah/eax: (addr handle cell) <- get args, left
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var first/eax: (addr cell) <- lookup *first-ah
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var first-type/ecx: (addr int) <- get first, type
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compare *first-type, 1/number
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{
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break-if-=
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error trace, "first arg for - is not a number"
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return
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}
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var first-value/ecx: (addr float) <- get first, number-data
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# args->right->left->value
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var right-ah/eax: (addr handle cell) <- get args, right
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var right/eax: (addr cell) <- lookup *right-ah
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# TODO: check that right is a pair
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var second-ah/eax: (addr handle cell) <- get right, left
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var second/eax: (addr cell) <- lookup *second-ah
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var second-type/edx: (addr int) <- get second, type
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compare *second-type, 1/number
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{
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break-if-=
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error trace, "second arg for - is not a number"
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return
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}
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var second-value/edx: (addr float) <- get second, number-data
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# subtract
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var result/xmm0: float <- copy *first-value
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result <- subtract *second-value
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new-float out, result
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}
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fn apply-multiply _args-ah: (addr handle cell), out: (addr handle cell), env-h: (handle cell), trace: (addr trace) {
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trace-text trace, "eval", "apply *"
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var args-ah/eax: (addr handle cell) <- copy _args-ah
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var _args/eax: (addr cell) <- lookup *args-ah
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var args/esi: (addr cell) <- copy _args
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var _env/eax: (addr cell) <- lookup env-h
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var env/edi: (addr cell) <- copy _env
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# TODO: check that args is a pair
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var empty-args?/eax: boolean <- nil? args
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compare empty-args?, 0/false
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{
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break-if-=
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error trace, "* needs 2 args but got 0"
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return
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}
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# args->left->value
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var first-ah/eax: (addr handle cell) <- get args, left
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var first/eax: (addr cell) <- lookup *first-ah
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var first-type/ecx: (addr int) <- get first, type
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compare *first-type, 1/number
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{
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break-if-=
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error trace, "first arg for * is not a number"
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return
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}
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var first-value/ecx: (addr float) <- get first, number-data
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# args->right->left->value
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var right-ah/eax: (addr handle cell) <- get args, right
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var right/eax: (addr cell) <- lookup *right-ah
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# TODO: check that right is a pair
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var second-ah/eax: (addr handle cell) <- get right, left
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var second/eax: (addr cell) <- lookup *second-ah
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var second-type/edx: (addr int) <- get second, type
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compare *second-type, 1/number
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{
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break-if-=
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error trace, "second arg for * is not a number"
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return
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}
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var second-value/edx: (addr float) <- get second, number-data
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# multiply
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var result/xmm0: float <- copy *first-value
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result <- multiply *second-value
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new-float out, result
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}
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fn apply-divide _args-ah: (addr handle cell), out: (addr handle cell), env-h: (handle cell), trace: (addr trace) {
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trace-text trace, "eval", "apply /"
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var args-ah/eax: (addr handle cell) <- copy _args-ah
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var _args/eax: (addr cell) <- lookup *args-ah
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var args/esi: (addr cell) <- copy _args
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var _env/eax: (addr cell) <- lookup env-h
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var env/edi: (addr cell) <- copy _env
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# TODO: check that args is a pair
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var empty-args?/eax: boolean <- nil? args
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compare empty-args?, 0/false
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{
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break-if-=
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error trace, "/ needs 2 args but got 0"
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return
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}
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# args->left->value
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var first-ah/eax: (addr handle cell) <- get args, left
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var first/eax: (addr cell) <- lookup *first-ah
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var first-type/ecx: (addr int) <- get first, type
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compare *first-type, 1/number
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{
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break-if-=
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error trace, "first arg for / is not a number"
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return
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}
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var first-value/ecx: (addr float) <- get first, number-data
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# args->right->left->value
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var right-ah/eax: (addr handle cell) <- get args, right
|
|
var right/eax: (addr cell) <- lookup *right-ah
|
|
# TODO: check that right is a pair
|
|
var second-ah/eax: (addr handle cell) <- get right, left
|
|
var second/eax: (addr cell) <- lookup *second-ah
|
|
var second-type/edx: (addr int) <- get second, type
|
|
compare *second-type, 1/number
|
|
{
|
|
break-if-=
|
|
error trace, "second arg for / is not a number"
|
|
return
|
|
}
|
|
var second-value/edx: (addr float) <- get second, number-data
|
|
# divide
|
|
var result/xmm0: float <- copy *first-value
|
|
result <- divide *second-value
|
|
new-float out, result
|
|
}
|
|
|
|
fn apply-square-root _args-ah: (addr handle cell), out: (addr handle cell), env-h: (handle cell), trace: (addr trace) {
|
|
trace-text trace, "eval", "apply sqrt"
|
|
var args-ah/eax: (addr handle cell) <- copy _args-ah
|
|
var _args/eax: (addr cell) <- lookup *args-ah
|
|
var args/esi: (addr cell) <- copy _args
|
|
var _env/eax: (addr cell) <- lookup env-h
|
|
var env/edi: (addr cell) <- copy _env
|
|
# TODO: check that args is a pair
|
|
var empty-args?/eax: boolean <- nil? args
|
|
compare empty-args?, 0/false
|
|
{
|
|
break-if-=
|
|
error trace, "sqrt needs 1 args but got 0"
|
|
return
|
|
}
|
|
# args->left->value
|
|
var first-ah/eax: (addr handle cell) <- get args, left
|
|
var first/eax: (addr cell) <- lookup *first-ah
|
|
var first-type/ecx: (addr int) <- get first, type
|
|
compare *first-type, 1/number
|
|
{
|
|
break-if-=
|
|
error trace, "arg for sqrt is not a number"
|
|
return
|
|
}
|
|
var first-value/ecx: (addr float) <- get first, number-data
|
|
# square-root
|
|
var result/xmm0: float <- square-root *first-value
|
|
new-float out, result
|
|
}
|
|
|
|
fn apply-car _args-ah: (addr handle cell), out: (addr handle cell), env-h: (handle cell), trace: (addr trace) {
|
|
trace-text trace, "eval", "apply car"
|
|
var args-ah/eax: (addr handle cell) <- copy _args-ah
|
|
var _args/eax: (addr cell) <- lookup *args-ah
|
|
var args/esi: (addr cell) <- copy _args
|
|
var _env/eax: (addr cell) <- lookup env-h
|
|
var env/edi: (addr cell) <- copy _env
|
|
# TODO: check that args is a pair
|
|
var empty-args?/eax: boolean <- nil? args
|
|
compare empty-args?, 0/false
|
|
{
|
|
break-if-=
|
|
error trace, "car needs 1 args but got 0"
|
|
return
|
|
}
|
|
# args->left
|
|
var first-ah/eax: (addr handle cell) <- get args, left
|
|
var first/eax: (addr cell) <- lookup *first-ah
|
|
var first-type/ecx: (addr int) <- get first, type
|
|
compare *first-type, 0/pair
|
|
{
|
|
break-if-=
|
|
error trace, "arg for car is not a pair"
|
|
return
|
|
}
|
|
# car
|
|
var result/eax: (addr handle cell) <- get first, left
|
|
copy-object result, out
|
|
}
|
|
|
|
fn apply-cdr _args-ah: (addr handle cell), out: (addr handle cell), env-h: (handle cell), trace: (addr trace) {
|
|
trace-text trace, "eval", "apply cdr"
|
|
var args-ah/eax: (addr handle cell) <- copy _args-ah
|
|
var _args/eax: (addr cell) <- lookup *args-ah
|
|
var args/esi: (addr cell) <- copy _args
|
|
var _env/eax: (addr cell) <- lookup env-h
|
|
var env/edi: (addr cell) <- copy _env
|
|
# TODO: check that args is a pair
|
|
var empty-args?/eax: boolean <- nil? args
|
|
compare empty-args?, 0/false
|
|
{
|
|
break-if-=
|
|
error trace, "cdr needs 1 args but got 0"
|
|
return
|
|
}
|
|
# args->left
|
|
var first-ah/eax: (addr handle cell) <- get args, left
|
|
var first/eax: (addr cell) <- lookup *first-ah
|
|
var first-type/ecx: (addr int) <- get first, type
|
|
compare *first-type, 0/pair
|
|
{
|
|
break-if-=
|
|
error trace, "arg for cdr is not a pair"
|
|
return
|
|
}
|
|
# cdr
|
|
var result/eax: (addr handle cell) <- get first, right
|
|
copy-object result, out
|
|
}
|
|
|
|
fn apply-cons _args-ah: (addr handle cell), out: (addr handle cell), env-h: (handle cell), trace: (addr trace) {
|
|
trace-text trace, "eval", "apply cons"
|
|
var args-ah/eax: (addr handle cell) <- copy _args-ah
|
|
var _args/eax: (addr cell) <- lookup *args-ah
|
|
var args/esi: (addr cell) <- copy _args
|
|
var _env/eax: (addr cell) <- lookup env-h
|
|
var env/edi: (addr cell) <- copy _env
|
|
# TODO: check that args is a pair
|
|
var empty-args?/eax: boolean <- nil? args
|
|
compare empty-args?, 0/false
|
|
{
|
|
break-if-=
|
|
error trace, "cons needs 2 args but got 0"
|
|
return
|
|
}
|
|
# args->left
|
|
var first-ah/ecx: (addr handle cell) <- get args, left
|
|
# args->right->left
|
|
var right-ah/eax: (addr handle cell) <- get args, right
|
|
var right/eax: (addr cell) <- lookup *right-ah
|
|
# TODO: check that right is a pair
|
|
var second-ah/eax: (addr handle cell) <- get right, left
|
|
# cons
|
|
new-pair out, *first-ah, *second-ah
|
|
}
|
|
|
|
fn apply-compare _args-ah: (addr handle cell), out: (addr handle cell), env-h: (handle cell), trace: (addr trace) {
|
|
trace-text trace, "eval", "apply ="
|
|
var args-ah/eax: (addr handle cell) <- copy _args-ah
|
|
var _args/eax: (addr cell) <- lookup *args-ah
|
|
var args/esi: (addr cell) <- copy _args
|
|
var _env/eax: (addr cell) <- lookup env-h
|
|
var env/edi: (addr cell) <- copy _env
|
|
# TODO: check that args is a pair
|
|
var empty-args?/eax: boolean <- nil? args
|
|
compare empty-args?, 0/false
|
|
{
|
|
break-if-=
|
|
error trace, "cons needs 2 args but got 0"
|
|
return
|
|
}
|
|
# args->left
|
|
var first-ah/ecx: (addr handle cell) <- get args, left
|
|
# args->right->left
|
|
var right-ah/eax: (addr handle cell) <- get args, right
|
|
var right/eax: (addr cell) <- lookup *right-ah
|
|
# TODO: check that right is a pair
|
|
var second-ah/edx: (addr handle cell) <- get right, left
|
|
# compare
|
|
var _first/eax: (addr cell) <- lookup *first-ah
|
|
var first/ecx: (addr cell) <- copy _first
|
|
var second/eax: (addr cell) <- lookup *second-ah
|
|
var match?/eax: boolean <- cell-isomorphic? first, second, trace
|
|
compare match?, 0/false
|
|
{
|
|
break-if-!=
|
|
nil out
|
|
return
|
|
}
|
|
new-integer out, 1/true
|
|
}
|
|
|
|
fn apply-print _args-ah: (addr handle cell), out: (addr handle cell), env-h: (handle cell), trace: (addr trace) {
|
|
trace-text trace, "eval", "apply print"
|
|
var args-ah/eax: (addr handle cell) <- copy _args-ah
|
|
var _args/eax: (addr cell) <- lookup *args-ah
|
|
var args/esi: (addr cell) <- copy _args
|
|
var _env/eax: (addr cell) <- lookup env-h
|
|
var env/edi: (addr cell) <- copy _env
|
|
# TODO: check that args is a pair
|
|
var empty-args?/eax: boolean <- nil? args
|
|
compare empty-args?, 0/false
|
|
{
|
|
break-if-=
|
|
error trace, "cons needs 2 args but got 0"
|
|
return
|
|
}
|
|
# screen = args->left
|
|
var first-ah/eax: (addr handle cell) <- get args, left
|
|
var first/eax: (addr cell) <- lookup *first-ah
|
|
var first-type/ecx: (addr int) <- get first, type
|
|
compare *first-type, 5/screen
|
|
{
|
|
break-if-=
|
|
error trace, "first arg for 'print' is not a screen"
|
|
return
|
|
}
|
|
var screen-ah/eax: (addr handle screen) <- get first, screen-data
|
|
var _screen/eax: (addr screen) <- lookup *screen-ah
|
|
var screen/ecx: (addr screen) <- copy _screen
|
|
# args->right->left
|
|
var right-ah/eax: (addr handle cell) <- get args, right
|
|
var right/eax: (addr cell) <- lookup *right-ah
|
|
# TODO: check that right is a pair
|
|
var second-ah/eax: (addr handle cell) <- get right, left
|
|
var stream-storage: (stream byte 0x100)
|
|
var stream/edi: (addr stream byte) <- address stream-storage
|
|
print-cell second-ah, stream, trace
|
|
draw-stream-wrapping-right-then-down-from-cursor-over-full-screen screen, stream, 7/fg, 0/bg
|
|
# return what was printed
|
|
copy-object second-ah, out
|
|
}
|