feat(vm/compiler): embed templates to executable

vm/compiler/templates/amd64-386/flowcontrol.asm

@@ -0,0 +1,44 @@
+{{- if .HasOp "speed" -}}
+;-------------------------------------------------------------------------------
+;   SPEED opcode: modulate the speed (bpm) of the song based on ST0
+;-------------------------------------------------------------------------------
+;   Mono: adds or subtracts the ticks, a value of 0.5 is neutral & will7
+;   result in no speed change.
+;   There is no STEREO version.
+;-------------------------------------------------------------------------------
+{{.Func "su_op_speed" "Opcode"}}
+{{- .Float 2.206896551724138 | .Prepare | indent 4}}
+    fmul    dword [{{.Float 2.206896551724138 | .Use}}]         ; (2*s-1)*64/24, let's call this p from now on
+    {{.Call "su_power"}}
+    fld1                                 ; 1 2^p
+    fsubp   st1, st0                     ; 2^p-1, the player is advancing 1 tick by its own
+    fadd    dword [{{.WRK}}] ; t+2^p-1, t is the remainder from previous rounds as ticks have to be rounded to 1
+    push    {{.AX}}
+    fist    dword [{{.SP}}]                  ; Main stack: k=int(t+2^p-1)
+    fisub   dword [{{.SP}}]                  ; t+2^p-1-k, the remainder
+    pop     {{.AX}}
+    add     dword [{{.Stack "Sample"}}], eax          ; add the whole ticks to row tick count
+    fstp    dword [{{.WRK}}] ; save the remainder for future
+    ret
+{{end}}
+
+
+{{- if or .RowSync (.HasOp "sync")}}
+;-------------------------------------------------------------------------------
+;   SYNC opcode: save the stack top to sync buffer
+;-------------------------------------------------------------------------------
+{{.Func "su_op_sync" "Opcode"}}
+{{- if not .Library}}
+    ; TODO: syncs are NOPs when compiling as library, should figure out a way to
+    ; make them work when compiling to use the native track also
+    mov     {{.AX}}, [{{.Stack "GlobalTick"}}]
+    test    al, al
+    jne     su_op_sync_skip
+    xchg    {{.AX}}, [{{.Stack "SyncBufPtr"}}]
+    fst     dword [{{.AX}}]
+    add     {{.AX}}, 4
+    xchg    {{.AX}}, [{{.Stack "SyncBufPtr"}}]
+su_op_sync_skip:
+{{- end}}
+    ret
+{{end}}