Add OPL4 playback and analyzer support

2026-09-15 14:59:29 +03:00
commit 1686838e03
553 changed files with 50524 additions and 0 deletions
@@ -0,0 +1,33 @@
+        .module wc_scrlwow
+        .area _CODE
+WC_ENTRY = 0x6006
+        .globl _wc_scrlwow
+_wc_scrlwow::
+        push    ix
+        push    hl                      ; save win (HL = 1st arg)
+        ld      ix, #0
+        add     ix, sp
+        ld      a, 10(ix)               ; A = flags
+        ld      b, 8(ix)                ; B = h
+        ld      c, 9(ix)                ; C = w
+        ld      d, 6(ix)                ; D = y
+        ld      e, 7(ix)                ; E = x
+        exx
+        ex      af, af'                 ; A' = flags
+        ld      l, 0(ix)
+        ld      h, 1(ix)
+        push    hl
+        pop     ix                      ; IX = win
+        exx                             ; BC=h/w, DE=y/x
+        ld      a, #0x54
+        call    WC_ENTRY
+        pop     hl                      ; remove saved win
+        pop     ix
+        ; callee cleans 5 bytes
+        pop     hl
+        inc     sp
+        inc     sp
+        inc     sp
+        inc     sp
+        inc     sp
+        jp      (hl)