mirror of
https://github.com/vsariola/sointu.git
synced 2025-05-28 03:10:24 -04:00
e4490faa2e
The working principle is similar as before with x86, but instead of outputting .asm, it outputs .wat. This can be compiled into .wasm by using the wat2wasm assembler.
240 lines
7.1 KiB
Plaintext
240 lines
7.1 KiB
Plaintext
{{- if .HasOp "pop"}}
|
|
;;-------------------------------------------------------------------------------
|
|
;; POP opcode: remove (discard) the topmost signal from the stack
|
|
;;-------------------------------------------------------------------------------
|
|
{{- if .Mono "pop" -}}
|
|
;; Mono: a -> (empty)
|
|
{{- end}}
|
|
{{- if .Stereo "pop" -}}
|
|
;; Stereo: a b -> (empty)
|
|
{{- end}}
|
|
;;-------------------------------------------------------------------------------
|
|
(func $su_op_pop (param $stereo i32)
|
|
{{- if .Stereo "pop"}}
|
|
(if (local.get $stereo) (then
|
|
(drop (call $pop))
|
|
))
|
|
{{- end}}
|
|
(drop (call $pop))
|
|
)
|
|
{{end}}
|
|
|
|
|
|
{{- if .HasOp "add"}}
|
|
;;-------------------------------------------------------------------------------
|
|
;; ADD opcode: add the two top most signals on the stack
|
|
;;-------------------------------------------------------------------------------
|
|
{{- if .Mono "add"}}
|
|
;; Mono: a b -> a+b b
|
|
{{- end}}
|
|
{{- if .Stereo "add" -}}
|
|
;; Stereo: a b c d -> a+c b+d c d
|
|
{{- end}}
|
|
;;-------------------------------------------------------------------------------
|
|
(func $su_op_add (param $stereo i32)
|
|
{{- if .StereoAndMono "add"}}
|
|
(if (local.get $stereo) (then
|
|
{{- end}}
|
|
{{- if .Stereo "add"}}
|
|
call $pop ;; F: b c d P: a
|
|
call $pop ;; F: c d P: b a
|
|
call $peek2;; F: c d P: d b a
|
|
f32.add ;; F: c d P: b+d a
|
|
call $push ;; F: b+d c d P: a
|
|
call $peek2;; F: b+d c d P: c a
|
|
f32.add ;; F: b+d c d P: a+c
|
|
call $push ;; F: a+c b+d c d P:
|
|
{{- end}}
|
|
{{- if .StereoAndMono "add"}}
|
|
)(else
|
|
{{- end}}
|
|
{{- if .Mono "add"}}
|
|
(call $push (f32.add (call $pop) (call $peek)))
|
|
{{- end}}
|
|
{{- if .StereoAndMono "add"}}
|
|
))
|
|
{{- end}}
|
|
)
|
|
{{end}}
|
|
|
|
|
|
{{- if .HasOp "addp"}}
|
|
;;-------------------------------------------------------------------------------
|
|
;; ADDP opcode: add the two top most signals on the stack and pop
|
|
;;-------------------------------------------------------------------------------
|
|
;; Mono: a b -> a+b
|
|
;; Stereo: a b c d -> a+c b+d
|
|
;;-------------------------------------------------------------------------------
|
|
(func $su_op_addp (param $stereo i32)
|
|
{{- if .StereoAndMono "addp"}}
|
|
(if (local.get $stereo) (then
|
|
{{- end}}
|
|
{{- if .Stereo "addp"}}
|
|
call $pop ;; a
|
|
call $pop ;; b a
|
|
call $swap ;; a b
|
|
call $pop ;; c a b
|
|
f32.add ;; c+a b
|
|
call $swap ;; b c+a
|
|
call $pop ;; d b c+a
|
|
f32.add ;; d+b c+a
|
|
call $push ;; c+a
|
|
call $push
|
|
{{- end}}
|
|
{{- if .StereoAndMono "addp"}}
|
|
)(else
|
|
{{- end}}
|
|
{{- if .Mono "addp"}}
|
|
(call $push (f32.add (call $pop) (call $pop)))
|
|
{{- end}}
|
|
{{- if .StereoAndMono "addp"}}
|
|
))
|
|
{{- end}}
|
|
)
|
|
{{end}}
|
|
|
|
|
|
{{- if .HasOp "loadnote"}}
|
|
;;-------------------------------------------------------------------------------
|
|
;; LOADNOTE opcode: load the current note, scaled to [-1,1]
|
|
;;-------------------------------------------------------------------------------
|
|
(func $su_op_loadnote (param $stereo i32)
|
|
{{- if .Stereo "loadnote"}}
|
|
(if (local.get $stereo) (then
|
|
(call $su_op_loadnote (i32.const 0))
|
|
))
|
|
{{- end}}
|
|
(f32.convert_i32_u (i32.load (global.get $voice)))
|
|
(f32.mul (f32.const 0.015625))
|
|
(f32.sub (f32.const 1))
|
|
(call $push)
|
|
)
|
|
{{end}}
|
|
|
|
{{- if .HasOp "mul"}}
|
|
;;-------------------------------------------------------------------------------
|
|
;; MUL opcode: multiply the two top most signals on the stack
|
|
;;-------------------------------------------------------------------------------
|
|
;; Mono: a b -> a*b a
|
|
;; Stereo: a b c d -> a*c b*d c d
|
|
;;-------------------------------------------------------------------------------
|
|
(func $su_op_mul (param $stereo i32)
|
|
{{- if .StereoAndMono "mul"}}
|
|
(if (local.get $stereo) (then
|
|
{{- end}}
|
|
{{- if .Stereo "mul"}}
|
|
call $pop ;; F: b c d P: a
|
|
call $pop ;; F: c d P: b a
|
|
call $peek2;; F: c d P: d b a
|
|
f32.mul ;; F: c d P: b*d a
|
|
call $push ;; F: b*d c d P: a
|
|
call $peek2;; F: b*d c d P: c a
|
|
f32.mul ;; F: b*d c d P: a*c
|
|
call $push ;; F: a*c b*d c d P:
|
|
{{- end}}
|
|
{{- if .StereoAndMono "mul"}}
|
|
)(else
|
|
{{- end}}
|
|
{{- if .Mono "mul"}}
|
|
(call $push (f32.mul (call $pop) (call $peek)))
|
|
{{- end}}
|
|
{{- if .StereoAndMono "mul"}}
|
|
))
|
|
{{- end}}
|
|
)
|
|
{{end}}
|
|
|
|
|
|
{{- if .HasOp "mulp"}}
|
|
;;-------------------------------------------------------------------------------
|
|
;; MULP opcode: multiply the two top most signals on the stack and pop
|
|
;;-------------------------------------------------------------------------------
|
|
;; Mono: a b -> a*b
|
|
;; Stereo: a b c d -> a*c b*d
|
|
;;-------------------------------------------------------------------------------
|
|
(func $su_op_mulp (param $stereo i32)
|
|
{{- if .StereoAndMono "mulp"}}
|
|
(if (local.get $stereo) (then
|
|
{{- end}}
|
|
{{- if .Stereo "mulp"}}
|
|
call $pop ;; a
|
|
call $pop ;; b a
|
|
call $swap ;; a b
|
|
call $pop ;; c a b
|
|
f32.mul ;; c*a b
|
|
call $swap ;; b c*a
|
|
call $pop ;; d b c*a
|
|
f32.mul ;; d*b c*a
|
|
call $push ;; c*a
|
|
call $push
|
|
{{- end}}
|
|
{{- if .StereoAndMono "mulp"}}
|
|
)(else
|
|
{{- end}}
|
|
{{- if .Mono "mulp"}}
|
|
(call $push (f32.mul (call $pop) (call $pop)))
|
|
{{- end}}
|
|
{{- if .StereoAndMono "mulp"}}
|
|
))
|
|
{{- end}}
|
|
)
|
|
{{end}}
|
|
|
|
|
|
{{- if .HasOp "push"}}
|
|
;;-------------------------------------------------------------------------------
|
|
;; PUSH opcode: push the topmost signal on the stack
|
|
;;-------------------------------------------------------------------------------
|
|
;; Mono: a -> a a
|
|
;; Stereo: a b -> a b a b
|
|
;;-------------------------------------------------------------------------------
|
|
(func $su_op_push (param $stereo i32)
|
|
{{- if .Stereo "push"}}
|
|
(if (local.get $stereo) (then
|
|
(call $push (call $peek))
|
|
))
|
|
{{- end}}
|
|
(call $push (call $peek))
|
|
)
|
|
{{end}}
|
|
|
|
|
|
{{- if or (.HasOp "xch") (.Stereo "delay")}}
|
|
;;-------------------------------------------------------------------------------
|
|
;; XCH opcode: exchange the signals on the stack
|
|
;;-------------------------------------------------------------------------------
|
|
;; Mono: a b -> b a
|
|
;; stereo: a b c d -> c d a b
|
|
;;-------------------------------------------------------------------------------
|
|
(func $su_op_xch (param $stereo i32)
|
|
call $pop
|
|
call $pop
|
|
{{- if .StereoAndMono "xch"}}
|
|
(if (local.get $stereo) (then
|
|
{{- end}}
|
|
{{- if .Stereo "xch"}}
|
|
call $pop ;; F: d P: c b a
|
|
call $swap ;; F: d P: b c a
|
|
call $pop ;; F: P: d b c a
|
|
call $swap ;; F: P: b d c a
|
|
call $push ;; F: b P: d c a
|
|
call $push ;; F: d b P: c a
|
|
call $swap ;; F: d b P: a c
|
|
call $pop ;; F: b P: d a c
|
|
call $swap ;; F: b P: a d c
|
|
call $push ;; F: a b P: d c
|
|
{{- end}}
|
|
{{- if .StereoAndMono "xch"}}
|
|
)(else
|
|
{{- end}}
|
|
{{- if or (.Mono "xch") (.Stereo "delay")}}
|
|
call $swap
|
|
{{- end}}
|
|
{{- if .StereoAndMono "xch"}}
|
|
))
|
|
{{- end}}
|
|
call $push
|
|
call $push
|
|
)
|
|
{{end}}
|