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# support for non-int values is untested
type value-stack {
data: (handle array value)
top: int
}
fn initialize-value-stack _self: (addr value-stack), n: int {
var self/esi: (addr value-stack) <- copy _self
var d/edi: (addr handle array value) <- get self, data
populate d, n
var top/eax: (addr int) <- get self, top
copy-to *top, 0
}
fn clear-value-stack _self: (addr value-stack) {
var self/esi: (addr value-stack) <- copy _self
var top/eax: (addr int) <- get self, top
copy-to *top, 0
}
fn push-number-to-value-stack _self: (addr value-stack), _val: float {
var self/esi: (addr value-stack) <- copy _self
var top-addr/ecx: (addr int) <- get self, top
var data-ah/edx: (addr handle array value) <- get self, data
var data/eax: (addr array value) <- lookup *data-ah
var top/edx: int <- copy *top-addr
var dest-offset/edx: (offset value) <- compute-offset data, top
var dest-addr/edx: (addr value) <- index data, dest-offset
var dest-addr2/eax: (addr float) <- get dest-addr, number-data
var val/xmm0: float <- copy _val
#? print-float-decimal-approximate 0, val, 3
copy-to *dest-addr2, val
increment *top-addr
var type-addr/eax: (addr int) <- get dest-addr, type
copy-to *type-addr, 0 # number
}
fn push-string-to-value-stack _self: (addr value-stack), val: (handle array byte) {
var self/esi: (addr value-stack) <- copy _self
var top-addr/ecx: (addr int) <- get self, top
var data-ah/edx: (addr handle array value) <- get self, data
var data/eax: (addr array value) <- lookup *data-ah
var top/edx: int <- copy *top-addr
var dest-offset/edx: (offset value) <- compute-offset data, top
var dest-addr/edx: (addr value) <- index data, dest-offset
var dest-addr2/eax: (addr handle array byte) <- get dest-addr, text-data
copy-handle val, dest-addr2
var dest-addr3/eax: (addr int) <- get dest-addr, type
#? print-string 0, "setting type to 1: "
#? {
#? var foo/eax: int <- copy dest-addr3
#? print-int32-hex 0, foo
#? }
#? print-string 0, "\n"
copy-to *dest-addr3, 1 # type string
increment *top-addr
}
fn push-array-to-value-stack _self: (addr value-stack), val: (handle array value) {
var self/esi: (addr value-stack) <- copy _self
var top-addr/ecx: (addr int) <- get self, top
var data-ah/edx: (addr handle array value) <- get self, data
var data/eax: (addr array value) <- lookup *data-ah
var top/edx: int <- copy *top-addr
var dest-offset/edx: (offset value) <- compute-offset data, top
var dest-addr/edx: (addr value) <- index data, dest-offset
var dest-addr2/eax: (addr handle array value) <- get dest-addr, array-data
copy-handle val, dest-addr2
# update type
var dest-addr3/eax: (addr int) <- get dest-addr, type
copy-to *dest-addr3, 2 # type array
increment *top-addr
}
fn push-value-stack _self: (addr value-stack), val: (addr value) {
var self/esi: (addr value-stack) <- copy _self
var top-addr/ecx: (addr int) <- get self, top
var data-ah/edx: (addr handle array value) <- get self, data
var data/eax: (addr array value) <- lookup *data-ah
var top/edx: int <- copy *top-addr
var dest-offset/edx: (offset value) <- compute-offset data, top
var dest-addr/edx: (addr value) <- index data, dest-offset
copy-object val, dest-addr
increment *top-addr
}
fn pop-number-from-value-stack _self: (addr value-stack) -> _/xmm0: float {
var self/esi: (addr value-stack) <- copy _self
var top-addr/ecx: (addr int) <- get self, top
{
compare *top-addr, 0
break-if->
var minus-one/eax: int <- copy -1
var minus-one-f/xmm0: float <- convert minus-one
return minus-one-f
}
decrement *top-addr
var data-ah/edx: (addr handle array value) <- get self, data
var data/eax: (addr array value) <- lookup *data-ah
var top/edx: int <- copy *top-addr
var dest-offset/edx: (offset value) <- compute-offset data, top
var result-addr/eax: (addr value) <- index data, dest-offset
var result-addr2/eax: (addr float) <- get result-addr, number-data
return *result-addr2
}
fn value-stack-empty? _self: (addr value-stack) -> _/eax: boolean {
var self/esi: (addr value-stack) <- copy _self
var top/eax: (addr int) <- get self, top
compare *top, 0
{
break-if-!=
return 1 # true
}
return 0 # false
}
fn value-stack-length _self: (addr value-stack) -> _/eax: int {
var self/esi: (addr value-stack) <- copy _self
var top-addr/eax: (addr int) <- get self, top
return *top-addr
}
fn save-lines in-h: (handle array (handle array byte)), _out-ah: (addr handle array value) {
var _in/eax: (addr array (handle array byte)) <- lookup in-h
var in/esi: (addr array (handle array byte)) <- copy _in
var len/ecx: int <- length in
var out-ah/edi: (addr handle array value) <- copy _out-ah
populate out-ah, len
var out/eax: (addr array value) <- lookup *out-ah
# copy in into out
var i/ebx: int <- copy 0
{
compare i, len
break-if->=
#? print-int32-hex 0, i
#? print-string 0, "\n"
var src/ecx: (addr handle array byte) <- index in, i
var dest-offset/edx: (offset value) <- compute-offset out, i
var dest-val/edx: (addr value) <- index out, dest-offset
var dest/eax: (addr handle array byte) <- get dest-val, text-data
copy-object src, dest
var type/edx: (addr int) <- get dest-val, type
copy-to *type, 1 # string
i <- increment
loop
}
}
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