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core: Readability changes

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This commit is contained in:
Remko Tronçon 2022-12-21 20:55:38 +01:00
parent caa885f413
commit b00f426b7f
1 changed files with 27 additions and 25 deletions
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52
src/waforth.wat
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@ -108,23 +108,40 @@
;; Parse the next name in the input stream
(local.set $wordAddr (local.set $wordLen (call $parseName)))
;; No more input. Break the loop.
;; Break the loop if we didn't parse anything
(br_if $endLoop (i32.eqz (local.get $wordLen)))
;; Search the name in the dictionary
(local.set $findToken (local.set $findResult
(call $find (local.get $wordAddr) (local.get $wordLen))))
(if (i32.eqz (local.get $findResult))
(then
;; Find the name in the dictionary
(local.set $findToken (local.set $findResult (call $find (local.get $wordAddr) (local.get $wordLen))))
(if (local.get $findResult)
(then
;; Name found in the dictionary.
(block
;; Are we interpreting? Then jump out of this block
(br_if 0 (i32.eqz (i32.load (i32.const 0x20990 (; = body(STATE) ;)))))
;; Is the word immediate? Then jump out of this block
(br_if 0 (i32.eq (local.get $findResult) (i32.const 1)))
;; We're compiling a non-immediate.
;; Compile the execution of the word into the current compilation body.
(local.set $tos (call $compileExecute (local.get $tos) (local.get $findToken)))
;; Continue the loop
(br $loop))
;; We're interpreting, or this is an immediate word
;; Execute the word.
(local.set $tos (call $execute (local.get $tos) (local.get $findToken))))
(else
;; Name is not in the dictionary. Is it a number?
(if (param i32) (i32.eqz (call $readNumber (local.get $wordAddr) (local.get $wordLen)))
;; It's a number. Are we compiling?
;; It's a number.
(then
(local.set $number)
;; Are we compiling?
(if (i32.load (i32.const 0x20990 (; = body(STATE) ;)))
(then
;; We're compiling. Pop it off the stack and
;; add it to the compiled list
;; We're compiling. Add a push of the number to the current compilation body.
(local.set $tos (call $compilePushConst (local.get $tos) (local.get $number))))
(else
;; We're not compiling. Put the number on the stack.
@ -132,22 +149,7 @@
;; It's not a number either. Fail.
(else
(drop)
(call $failUndefinedWord (local.get $wordAddr) (local.get $wordLen)))))
(else
;; Name found in the dictionary.
(block
;; Are we interpreting?
(br_if 0 (i32.eqz (i32.load (i32.const 0x20990 (; = body(STATE) ;)))))
;; Is the word immediate?
(br_if 0 (i32.eq (local.get $findResult) (i32.const 1)))
;; We're compiling a non-immediate.
;; Compile the execution of the word into the current compilation body.
(local.set $tos (call $compileExecute (local.get $tos) (local.get $findToken)))
(br $loop))
;; We're interpreting, or this is an immediate word
;; Execute the word.
(local.set $tos (call $execute (local.get $tos) (local.get $findToken)))))
(call $failUndefinedWord (local.get $wordAddr) (local.get $wordLen))))))
(br $loop)))
(local.get $tos))