diff --git a/src/QFST.ld b/src/QFST.ld
index f01fc11..be8e91e 100644
--- a/src/QFST.ld
+++ b/src/QFST.ld
@@ -1,12 +1,22 @@
-/* @ha MUST be 0x817f */
-$QFST.ts = 0x817f7c00;
-$QFST.cnt = 0x817f7c40;
-$QFST.t0 = 0x817f7c44;
-$$ = 0x817f7c48;
+$$ = 0;
+
+/* size = 0x14 */
+$QFST.fillRectOpt = 0x817f039c;
+/* size = 0x10 */
+$QFST.drawTextOpt = 0x817f03b0;
+/* size = 0x09 */
+$QFST.fmt = 0x817f03c0;
+/* size = 0x02 (u16) */
+$QFST.cnt = 0x817f03ca;
+/* size = 0x04 (u32) */
+$QFST.t0 = 0x817f03cc;
+/* size = 0x40 (u32[0x10]) */
+$QFST.ts = 0x817f03d0;
+
 
 $QFT.tFreeze = 0x817f00b8;
 $QFT.freezeDur = 0x817f00bc;
 
-$b$.QFST.reset = 0x800f9dd0;
-$b$.QFST.render = 0x802069d0;
+$C2$.QFST.reset = TApplication.proc + 0x34;
+$C2$.QFST.render = drawWater - 0x1c;
 drawText = 0x817f0238;
diff --git a/src/QFST.s b/src/QFST.s
index 2e9c173..69e3320 100644
--- a/src/QFST.s
+++ b/src/QFST.s
@@ -1,55 +1,50 @@
 .include "./macros.s"
-.set $drawIndex$, 1
-
-.set x, 532
-.set x2, 488
-.set y, 150
-.set fontSize, 13
-.set colorTop, 0xffffffff
-.set colorBot, 0xffffffff
 .set logN, 4
 
-.draw2D.fmt: .string "%2d.%03d"
-.draw2D.fmt2: .string "[%02d]"
-.align 2
-
-.set aBase, 0x817f<<16
 .QFST.reset:
+## set cnt = 0, -t0 = -4
+  lis r3, 0x817F
+  li r29, 4
+  stw r29, $QFST.t0@l(r3)
   li r29, 0 # orig
-  lis r3, aBase@h
-  stw r29, $QFST.cnt-aBase(r3)
-  stw r29, $QFST.t0-aBase(r3)
-  b 4+$b$.QFST.reset
+  sth r29, $QFST.cnt@l(r3)
+
+/**********************************/
+.QFST.render:
 
-.set rmw, 28
-.set rmwOff, 0xC
-.set rmwAdd, 0x20
 .set rTArr, 31
 .set rCnt, 30
 .set rY, 29
-.set rIdx, 28
-.QFST.render:
-.QFST.render.setup:
-  addi r3, r1, 0xE90
-  bl J2DGrafContext.setup2D
+.set rY0, 28
+.set rIdx, 27
+.set rFontSize, 26
+.set r817F, 25
+
+.set rmw, 25
+.set rmwOff, 0x8
+.set rmwAdd, 0x30
+
 ## prepare
   addi r1, r1, -rmwAdd
   stmw rmw, rmwOff(r1)
-  lis r3, aBase@h
-  la rTArr, $QFST.ts-aBase(r3)
-  lwz rCnt, $QFST.cnt-aBase(r3)
-  li rY, y
+  lis r817F, 0x817F
+  lha rY0, $QFST.drawTextOpt+2@l(r817F)
+  la rTArr, $QFST.ts@l(r817F)
+  lhz rCnt, $QFST.cnt@l(r817F)
+  mr rY, rY0
+  lwz rFontSize, $QFST.drawTextOpt+4@l(r817F)
+
 .QFST.render.update:
 ### check is QFT frozen
 ### r6 = freeze duration
-  lwz r6, $QFT.freezeDur-aBase(r3)
-  cmpwi r6, 0
+  lwz r6, $QFT.freezeDur@l(r817F)
+  cmplwi r6, 0
   beq+ .QFST.render.update.done
 ### check is new frozen time
 ### r4 = tFreeze = QFT display time when freezed
 ### r5 = t0
-  lwz r4, $QFT.tFreeze-aBase(r3)
-  lwz r5, $QFST.t0-aBase(r3)
+  lwz r4, $QFT.tFreeze@l(r817F)
+  lwz r5, $QFST.t0@l(r817F)
   cmpw r4, r5
   ble+ .QFST.render.update.done
 ### store diff
@@ -57,78 +52,59 @@
   rlwinm r12, rCnt, 2, 30-logN, 29
   stwx r0, rTArr, r12
 ### update t0 = tFreeze
-  stw r4, $QFST.t0-aBase(r3)
+  stw r4, $QFST.t0@l(r817F)
 ### update cnt
   addi rCnt, rCnt, 1
-  stw rCnt, $QFST.cnt-aBase(r3)
+  sth rCnt, $QFST.cnt@l(r817F)
 .QFST.render.update.done:
+
+.QFST.render.bg:
+  la r3, $QFST.fillRectOpt@l(r817F)
+  la r4, $QFST.fillRectOpt+0x10@l(r817F)
+  lis r12, fill_rect@ha
+  la r12, fill_rect@l(r12)
+  mtlr r12
+  blrl
+
 .QFST.render.preDraw:
-### idx = max(0, cnt-N)
+### idx = cnt < N ? 0 : cnt-N
+  srwi. rIdx, rCnt, logN
+  beq .QFST.render.preDraw.done # idx = 0 if cnt>>logN == 0
   subi rIdx, rCnt, 1<<logN
-  cmpwi rCnt, 1<<logN
-  bge .QFST.render.preDraw.L1
-  li rIdx, 0
-.QFST.render.preDraw.L1:
+.QFST.render.preDraw.done:
 .QFST.render.loop:
-  cmpw rIdx, rCnt
-  blt+ .QFST.render.loop.body
-.QFST.render.done:
-  lmw rmw, rmwOff(r1)
-  addi r1, r1, rmwAdd
-## orig
-  lis r3, 0x803b
-  b 4+$b$.QFST.render
+  cmplw rIdx, rCnt
+  bge- .QFST.render.done
 .QFST.render.loop.body:
 ### QF -> s
   rlwinm r3, rIdx, 2, 30-logN, 29 # offset
   lwzx r0, rTArr, r3
-#### r0 = dQF*1001
-  mulli r0, r0, 1001
-#### r10 = dQF*1001/120 = ms
-  li r11, 120
-  divwu r10, r0, r11
-#### r9 = ms/1000 = s
-  li r11, 1000
-  divwu r9, r10, r11
-#### r10 = ms-s*1000 = ms%1000
-  mulli r11, r9, 1000
-  sub r10, r10, r11
+#### r11 = dQF*1001
+  mulli r11, r0, 1001
+#### r11 = dQF*1001/120 = ms
+  li r0, 120
+  divwu r11, r11, r0
+#### r5 = ms/1000 = s
+  li r0, 1000
+  divwu r5, r11, r0
+#### r6 = ms-s*1000 = ms%1000
+  mulli r0, r5, 1000
+  sub r6, r11, r0
 ### params
-  li r3, x
-  mr r4, rY
-  li r5, fontSize
-  liDX r6, colorTop
-.if colorTop == colorBot
-  mr r7, r6
-.else
-  liDX r7, colorBot
-.endif
-  li32 r8 .draw2D.fmt
-  crclr 6
-  bl drawText
-## draw index
-### r9 = (idx+1)%100
-  addi rIdx, rIdx, 1
-.if $drawIndex$
-  li r0, 100
-  divwu r9, rIdx, r0
-  mullw r9, r9, r0
-  sub r9, rIdx, r9
-### params
-  li32 r8 .draw2D.fmt2
-  li r3, x2
-  mr r4, rY
-  li r5, fontSize
-  liDX r6, colorTop
-.if colorTop == colorBot
-  mr r7, r6
-.else
-  liDX r7, colorBot
-.endif
-  crclr 6
-  bl drawText
+  la r3, $QFST.drawTextOpt@l(r817F)
+  la r4, $QFST.fmt@l(r817F)
+  la r12, drawText@l(r817F)
+  mtlr r12
+  blrl
 ## next
-  #addi rIdx, rIdx, 1 # already added
-.endif
-  addi rY, rY, fontSize
+  add rY, rY, rFontSize
+  addi rIdx, rIdx, 1
+  sth rY, $QFST.drawTextOpt+2@l(r817F)
   b .QFST.render.loop
+
+.QFST.render.done:
+## restore y
+  sth rY0, $QFST.drawTextOpt+2@l(r817F)
+## destroy stack frame
+  lmw rmw, rmwOff(r1)
+  addi r1, r1, rmwAdd