From 9bcb6af0db2a32a4158f7e7c91e91634f562a3da Mon Sep 17 00:00:00 2001 From: "B. Watson" Date: Wed, 7 Sep 2016 16:41:07 -0400 Subject: regenerate jumpmanjr.html --- jumpmanjr.html | 379 +++++++++++++++++++++++++++++---------------------------- 1 file changed, 194 insertions(+), 185 deletions(-) diff --git a/jumpmanjr.html b/jumpmanjr.html index d1625b5..d5c9718 100644 --- a/jumpmanjr.html +++ b/jumpmanjr.html @@ -7,7 +7,7 @@ 
 ; da65 V2.15 - Git 104f898
-; Created:    2016-09-06 18:37:35
+; Created:    2016-09-07 16:39:55
 ; Input file: jumpmanjr.rom
 ; Page:       1
 
@@ -24,6 +24,10 @@
 bomb_idx        := $00B2                        ; bomb that was just picked up (times 2, suitable for index into a table of words)
 blistptr        := $00B4                        ; bomb_pickup: points to current level's bomblist
 bombloc         := $00B6                        ; bomb_pickup: position of the bomb Jumpman just touched, on 8x8 coarse grid
+zp_temp3        := $00B7
+zp_temp4        := $00B8                        ; number of players, used by ask_num_players and option_key_handler. used as a temp elsewhere.
+zp_temp5        := $00B9                        ; among other things, used for jumpman's dance on title screen
+zp_temp6        := $00BA                        ; used for audio freq counter in materialize_jumpman. also used when setting number of players and player speeds.
 sa_tmp_1        := $00BD                        ; used by calc_screen_addr
 dm_count        := $00BE                        ; graphics object definition is this long
 dm_length       := $00BF                        ; see draw_map and level_maps.txt
@@ -68,20 +72,21 @@
 initial_speed   := $0625                        ; current user's chosen speed, set at game start
 bonus_jiffy_timer:= $0626                       ; gets incremented every frame when playing a level, bonus-=100 when this wraps around to 0
 playing_level   := $0627                        ; 0 = not playing, non-0 = playing
-sfx_lock        := $062F                        ; lets other code know cue_sfx is still running? not 100% sure
+rot_color       := $062A                        ; see comment at rotating_colors
+snd_lock        := $062F                        ; lets other code know cue_sfx is still running? not 100% sure
 player_delta_x  := $0630                        ; amount to move jumpman this frame (1 or $FF aka -1)
 player_delta_y  := $0631                        ; amount to move jumpman this frame (1 or $FF aka -1)
 joystick_disabled:= $0632                       ; nonzero = jumpman can't move (title screen or materialization, etc)
 joystick_state  := $0633                        ; last PORTA read (bottom 4 bits), or 0 if joystick_disabled
 trigger_disabled:= $0634                        ; nonzero = jumpman can't jump (he's already jumping, or title screen or materialization, etc)
 trigger_state   := $0635                        ; last TRIG0 read (0 = pressed)
-sfx_ptr         := $063C
-sfx_slot_priority:= $063E                       ; priority of this sfx
-sfx_slot_timer  := $063F
-sfx_slot_duration:= $0646
-sfx_slot_audc   := $0647
-sfx_slot_curpos := $064E                        ; address we've got to so far, playing this sfx
-sfx_priority_tmp:= $0661                        ; ??
+snd_ptr         := $063C
+snd_slot_priority:= $063E                       ; priority of this sfx
+snd_slot_timer  := $063F
+snd_slot_duration:= $0646
+snd_slot_audc   := $0647
+snd_slot_curpos := $064E                        ; address we've got to so far, playing this sfx
+snd_priority_tmp:= $0661                        ; ??
 num_tmp         := $0665                        ; temp used by print_number
 player_x_pos    := $067E                        ; stored in HPOSP0
 player_y_pos    := $0683                        ; $C6 is the bottom of the level (where you end up when you die)
@@ -562,94 +567,94 @@
         .byte   $3F,$CF,$F3,$FC                 ; 8153 3F CF F3 FC              ?...
 ; ----------------------------------------------------------------------------
 ; we have 4 slots (because POKEY has 4 voices), X counts down by 2 from 10 to 2 (at 0, the loop exits)
-sfx_player_entry:
+snd_player_entry:
         ldx     #$0A                            ; 8157 A2 0A                    ..
-        lda     sfx_lock                        ; 8159 AD 2F 06                 ./.
-        beq     next_sfx_slot                   ; 815C F0 01                    ..
-sfx_exit:
+        lda     snd_lock                        ; 8159 AD 2F 06                 ./.
+        beq     next_snd_slot                   ; 815C F0 01                    ..
+snd_exit:
         rts                                     ; 815E 60                       `
 
 ; ----------------------------------------------------------------------------
-next_sfx_slot:
+next_snd_slot:
         dex                                     ; 815F CA                       .
         dex                                     ; 8160 CA                       .
-        beq     sfx_exit                        ; 8161 F0 FB                    ..
-        lda     sfx_slot_priority,x             ; 8163 BD 3E 06                 .>.
-        beq     next_sfx_slot                   ; 8166 F0 F7                    ..
+        beq     snd_exit                        ; 8161 F0 FB                    ..
+        lda     snd_slot_priority,x             ; 8163 BD 3E 06                 .>.
+        beq     next_snd_slot                   ; 8166 F0 F7                    ..
 ; skip it, if slot is inactive
 is_slot_active:
-        lda     sfx_slot_timer,x                ; 8168 BD 3F 06                 .?.
-        beq     sfx_next_note                   ; 816B F0 10                    ..
-        dec     sfx_slot_timer,x                ; 816D DE 3F 06                 .?.
-        cmp     sfx_slot_duration,x             ; 8170 DD 46 06                 .F.
-        bne     next_sfx_slot                   ; 8173 D0 EA                    ..
+        lda     snd_slot_timer,x                ; 8168 BD 3F 06                 .?.
+        beq     snd_next_note                   ; 816B F0 10                    ..
+        dec     snd_slot_timer,x                ; 816D DE 3F 06                 .?.
+        cmp     snd_slot_duration,x             ; 8170 DD 46 06                 .F.
+        bne     next_snd_slot                   ; 8173 D0 EA                    ..
         lda     #$00                            ; 8175 A9 00                    ..
         sta     AUDC1_minus_two,x               ; 8177 9D FF D1                 ...
-        jmp     next_sfx_slot                   ; 817A 4C 5F 81                 L_.
+        jmp     next_snd_slot                   ; 817A 4C 5F 81                 L_.
 
 ; ----------------------------------------------------------------------------
-sfx_next_note:
-        lda     sfx_slot_curpos,x               ; 817D BD 4E 06                 .N.
+snd_next_note:
+        lda     snd_slot_curpos,x               ; 817D BD 4E 06                 .N.
         sta     zp_temp1                        ; 8180 85 CB                    ..
-        lda     sfx_slot_curpos+1,x             ; 8182 BD 4F 06                 .O.
+        lda     snd_slot_curpos+1,x             ; 8182 BD 4F 06                 .O.
         sta     zp_temp1+1                      ; 8185 85 CC                    ..
         ldy     #$00                            ; 8187 A0 00                    ..
         lda     (zp_temp1),y                    ; 8189 B1 CB                    ..
         cmp     #$04                            ; 818B C9 04                    ..
-        bcs     sfx_play_note                   ; 818D B0 77                    .w
+        bcs     snd_play_note                   ; 818D B0 77                    .w
         cmp     #$01                            ; 818F C9 01                    ..
-        beq     sfx_set_audc                    ; 8191 F0 1B                    ..
+        beq     snd_set_audc                    ; 8191 F0 1B                    ..
         cmp     #$02                            ; 8193 C9 02                    ..
-        beq     sfx_jump_opcode                 ; 8195 F0 31                    .1
+        beq     snd_jump_opcode                 ; 8195 F0 31                    .1
         cmp     #$03                            ; 8197 C9 03                    ..
-        beq     sfx_play_rest                   ; 8199 F0 03                    ..
-        jmp     sfx_finished                    ; 819B 4C 26 82                 L&.
+        beq     snd_play_rest                   ; 8199 F0 03                    ..
+        jmp     snd_finished                    ; 819B 4C 26 82                 L&.
 
 ; ----------------------------------------------------------------------------
 ; y==0 on entry
-sfx_play_rest:
+snd_play_rest:
         tya                                     ; 819E 98                       .
         sta     AUDC1_minus_two,x               ; 819F 9D FF D1                 ...
         iny                                     ; 81A2 C8                       .
         lda     (zp_temp1),y                    ; 81A3 B1 CB                    ..
-        sta     sfx_slot_timer,x                ; 81A5 9D 3F 06                 .?.
-        jsr     inc_sfx_pos                     ; 81A8 20 31 82                  1.
+        sta     snd_slot_timer,x                ; 81A5 9D 3F 06                 .?.
+        jsr     inc_snd_pos                     ; 81A8 20 31 82                  1.
         jmp     is_slot_active                  ; 81AB 4C 68 81                 Lh.
 
 ; ----------------------------------------------------------------------------
 ; y==0 on entry
-sfx_set_audc:
+snd_set_audc:
         iny                                     ; 81AE C8                       .
         lda     (zp_temp1),y                    ; 81AF B1 CB                    ..
-        sta     sfx_slot_audc,x                 ; 81B1 9D 47 06                 .G.
+        sta     snd_slot_audc,x                 ; 81B1 9D 47 06                 .G.
         iny                                     ; 81B4 C8                       .
         lda     (zp_temp1),y                    ; 81B5 B1 CB                    ..
-        sta     sfx_slot_duration,x             ; 81B7 9D 46 06                 .F.
-        jsr     inc_sfx_pos                     ; 81BA 20 31 82                  1.
-        inc     sfx_slot_curpos,x               ; 81BD FE 4E 06                 .N.
+        sta     snd_slot_duration,x             ; 81B7 9D 46 06                 .F.
+        jsr     inc_snd_pos                     ; 81BA 20 31 82                  1.
+        inc     snd_slot_curpos,x               ; 81BD FE 4E 06                 .N.
         bne     is_slot_active                  ; 81C0 D0 A6                    ..
-        inc     sfx_slot_curpos+1,x             ; 81C2 FE 4F 06                 .O.
+        inc     snd_slot_curpos+1,x             ; 81C2 FE 4F 06                 .O.
         jmp     is_slot_active                  ; 81C5 4C 68 81                 Lh.
 
 ; ----------------------------------------------------------------------------
 ; I *think* this jumps to a different sfx address...
-sfx_jump_opcode:
+snd_jump_opcode:
         iny                                     ; 81C8 C8                       .
         lda     (zp_temp1),y                    ; 81C9 B1 CB                    ..
-        sta     sfx_slot_curpos,x               ; 81CB 9D 4E 06                 .N.
+        sta     snd_slot_curpos,x               ; 81CB 9D 4E 06                 .N.
         iny                                     ; 81CE C8                       .
         lda     (zp_temp1),y                    ; 81CF B1 CB                    ..
-        sta     sfx_slot_curpos+1,x             ; 81D1 9D 4F 06                 .O.
+        sta     snd_slot_curpos+1,x             ; 81D1 9D 4F 06                 .O.
         iny                                     ; 81D4 C8                       .
         lda     $065E,x                         ; 81D5 BD 5E 06                 .^.
         beq     L81EE                           ; 81D8 F0 14                    ..
         dec     $065E,x                         ; 81DA DE 5E 06                 .^.
-        bne     sfx_next_note                   ; 81DD D0 9E                    ..
+        bne     snd_next_note                   ; 81DD D0 9E                    ..
         lda     $0656,x                         ; 81DF BD 56 06                 .V.
-        sta     sfx_slot_curpos,x               ; 81E2 9D 4E 06                 .N.
+        sta     snd_slot_curpos,x               ; 81E2 9D 4E 06                 .N.
         lda     $0657,x                         ; 81E5 BD 57 06                 .W.
-        sta     sfx_slot_curpos+1,x             ; 81E8 9D 4F 06                 .O.
-        jmp     sfx_next_note                   ; 81EB 4C 7D 81                 L}.
+        sta     snd_slot_curpos+1,x             ; 81E8 9D 4F 06                 .O.
+        jmp     snd_next_note                   ; 81EB 4C 7D 81                 L}.
 
 ; ----------------------------------------------------------------------------
 L81EE:  nop                                     ; 81EE EA                       .
@@ -662,43 +667,43 @@
         lda     zp_temp1+1                      ; 81FC A5 CC                    ..
         adc     #$00                            ; 81FE 69 00                    i.
         sta     $0657,x                         ; 8200 9D 57 06                 .W.
-        jmp     sfx_next_note                   ; 8203 4C 7D 81                 L}.
+        jmp     snd_next_note                   ; 8203 4C 7D 81                 L}.
 
 ; ----------------------------------------------------------------------------
 ; y==0, a>=4 on entry
-sfx_play_note:
+snd_play_note:
         sta     AUDF1_minus_two,x               ; 8206 9D FE D1                 ...
         iny                                     ; 8209 C8                       .
         lda     (zp_temp1),y                    ; 820A B1 CB                    ..
-        sta     sfx_slot_timer,x                ; 820C 9D 3F 06                 .?.
-        lda     sfx_slot_audc,x                 ; 820F BD 47 06                 .G.
+        sta     snd_slot_timer,x                ; 820C 9D 3F 06                 .?.
+        lda     snd_slot_audc,x                 ; 820F BD 47 06                 .G.
         sta     AUDC1_minus_two,x               ; 8212 9D FF D1                 ...
         clc                                     ; 8215 18                       .
-        lda     sfx_slot_curpos,x               ; 8216 BD 4E 06                 .N.
+        lda     snd_slot_curpos,x               ; 8216 BD 4E 06                 .N.
         adc     #$02                            ; 8219 69 02                    i.
-        sta     sfx_slot_curpos,x               ; 821B 9D 4E 06                 .N.
+        sta     snd_slot_curpos,x               ; 821B 9D 4E 06                 .N.
         bcc     cpos_hi_ok                      ; 821E 90 03                    ..
-        inc     sfx_slot_curpos+1,x             ; 8220 FE 4F 06                 .O.
+        inc     snd_slot_curpos+1,x             ; 8220 FE 4F 06                 .O.
 cpos_hi_ok:
         jmp     is_slot_active                  ; 8223 4C 68 81                 Lh.
 
 ; ----------------------------------------------------------------------------
 ; done playing this sfx, free up the slot, X-indexed
-sfx_finished:
+snd_finished:
         lda     #$00                            ; 8226 A9 00                    ..
-        sta     sfx_slot_priority,x             ; 8228 9D 3E 06                 .>.
+        sta     snd_slot_priority,x             ; 8228 9D 3E 06                 .>.
         sta     AUDC1_minus_two,x               ; 822B 9D FF D1                 ...
-        jmp     next_sfx_slot                   ; 822E 4C 5F 81                 L_.
+        jmp     next_snd_slot                   ; 822E 4C 5F 81                 L_.
 
 ; ----------------------------------------------------------------------------
 ; point to next byte in current sfx slot indexed by X
-inc_sfx_pos:
+inc_snd_pos:
         clc                                     ; 8231 18                       .
-        lda     sfx_slot_curpos,x               ; 8232 BD 4E 06                 .N.
+        lda     snd_slot_curpos,x               ; 8232 BD 4E 06                 .N.
         adc     #$02                            ; 8235 69 02                    i.
-        sta     sfx_slot_curpos,x               ; 8237 9D 4E 06                 .N.
+        sta     snd_slot_curpos,x               ; 8237 9D 4E 06                 .N.
         bcc     inc_done                        ; 823A 90 03                    ..
-        inc     sfx_slot_curpos+1,x             ; 823C FE 4F 06                 .O.
+        inc     snd_slot_curpos+1,x             ; 823C FE 4F 06                 .O.
 inc_done:
         rts                                     ; 823F 60                       `
 
@@ -706,40 +711,40 @@
 ; if cue_sfx not already in progress, setup to play sfx at (sfx_slot_priority, sfx_lock), priority A
 cue_sfx_lowprior:
         pha                                     ; 8240 48                       H
-        lda     sfx_ptr+1                       ; 8241 AD 3D 06                 .=.
+        lda     snd_ptr+1                       ; 8241 AD 3D 06                 .=.
 cue_ok: beq     lp_ok                           ; 8244 F0 02                    ..
         pla                                     ; 8246 68                       h
         rts                                     ; 8247 60                       `
 
 ; ----------------------------------------------------------------------------
 ; copy to sfx_ptr, fall thru to cue_sfx
-lp_ok:  lda     sfx_slot_priority               ; 8248 AD 3E 06                 .>.
-        sta     sfx_ptr                         ; 824B 8D 3C 06                 .<.
-        lda     sfx_slot_timer                  ; 824E AD 3F 06                 .?.
-        sta     sfx_ptr+1                       ; 8251 8D 3D 06                 .=.
+lp_ok:  lda     snd_slot_priority               ; 8248 AD 3E 06                 .>.
+        sta     snd_ptr                         ; 824B 8D 3C 06                 .<.
+        lda     snd_slot_timer                  ; 824E AD 3F 06                 .?.
+        sta     snd_ptr+1                       ; 8251 8D 3D 06                 .=.
         pla                                     ; 8254 68                       h
 ; setup to play sfx at *sfx_ptr, priority in A
-cue_sfx:sta     sfx_priority_tmp                ; 8255 8D 61 06                 .a.
-        inc     sfx_lock                        ; 8258 EE 2F 06                 ./.
+cue_sfx:sta     snd_priority_tmp                ; 8255 8D 61 06                 .a.
+        inc     snd_lock                        ; 8258 EE 2F 06                 ./.
         ldx     #$0A                            ; 825B A2 0A                    ..
 next_slot:
         dex                                     ; 825D CA                       .
         dex                                     ; 825E CA                       .
         beq     bump_slot                       ; 825F F0 20                    . 
-        lda     sfx_slot_priority,x             ; 8261 BD 3E 06                 .>.
+        lda     snd_slot_priority,x             ; 8261 BD 3E 06                 .>.
         bne     next_slot                       ; 8264 D0 F7                    ..
 ; found a free slot, use it
 load_slot:
-        lda     sfx_ptr                         ; 8266 AD 3C 06                 .<.
-        sta     sfx_slot_curpos,x               ; 8269 9D 4E 06                 .N.
-        lda     sfx_ptr+1                       ; 826C AD 3D 06                 .=.
-        sta     sfx_slot_curpos+1,x             ; 826F 9D 4F 06                 .O.
-        lda     sfx_priority_tmp                ; 8272 AD 61 06                 .a.
-        sta     sfx_slot_priority,x             ; 8275 9D 3E 06                 .>.
+        lda     snd_ptr                         ; 8266 AD 3C 06                 .<.
+        sta     snd_slot_curpos,x               ; 8269 9D 4E 06                 .N.
+        lda     snd_ptr+1                       ; 826C AD 3D 06                 .=.
+        sta     snd_slot_curpos+1,x             ; 826F 9D 4F 06                 .O.
+        lda     snd_priority_tmp                ; 8272 AD 61 06                 .a.
+        sta     snd_slot_priority,x             ; 8275 9D 3E 06                 .>.
 cue_done:
         lda     #$00                            ; 8278 A9 00                    ..
-        sta     sfx_ptr+1                       ; 827A 8D 3D 06                 .=.
-        dec     sfx_lock                        ; 827D CE 2F 06                 ./.
+        sta     snd_ptr+1                       ; 827A 8D 3D 06                 .=.
+        dec     snd_lock                        ; 827D CE 2F 06                 ./.
         rts                                     ; 8280 60                       `
 
 ; ----------------------------------------------------------------------------
@@ -753,8 +758,8 @@
 ; branch to cue_done (give up) if all slots are in use with higher priority than this sfx (which means it won't be heard)
 bump_fail:
         beq     cue_done                        ; 8285 F0 F1                    ..
-        lda     sfx_slot_priority,x             ; 8287 BD 3E 06                 .>.
-        cmp     sfx_priority_tmp                ; 828A CD 61 06                 .a.
+        lda     snd_slot_priority,x             ; 8287 BD 3E 06                 .>.
+        cmp     snd_priority_tmp                ; 828A CD 61 06                 .a.
         bcc     load_slot                       ; 828D 90 D7                    ..
         jmp     bump_try_next                   ; 828F 4C 83 82                 L..
 
@@ -1036,8 +1041,8 @@
         and     #$07                            ; 8498 29 07                    ).
         sta     $0628                           ; 849A 8D 28 06                 .(.
         tax                                     ; 849D AA                       .
-        lda     data_table_85b6,x               ; 849E BD B6 85                 ...
-        sta     $062A                           ; 84A1 8D 2A 06                 .*.
+        lda     rotating_colors,x               ; 849E BD B6 85                 ...
+        sta     rot_color                       ; 84A1 8D 2A 06                 .*.
 ; read the joystick if not disabled
 check_joystick_enabled:
         lda     joystick_disabled               ; 84A4 AD 32 06                 .2.
@@ -1091,7 +1096,7 @@
         lda     $0640                           ; 84F2 AD 40 06                 .@.
         ora     $0642                           ; 84F5 0D 42 06                 .B.
         ora     $0644                           ; 84F8 0D 44 06                 .D.
-        ora     sfx_slot_duration               ; 84FB 0D 46 06                 .F.
+        ora     snd_slot_duration               ; 84FB 0D 46 06                 .F.
         sta     $0663                           ; 84FE 8D 63 06                 .c.
         ldx     #$10                            ; 8501 A2 10                    ..
 ; save contents of GTIA collision regs (X ranges 1 to $10, dli_vec_shadow_hi should read collision_save-1)
@@ -1204,8 +1209,8 @@
         jmp     no_consol_pressed               ; 85B3 4C 8D 85                 L..
 
 ; ----------------------------------------------------------------------------
-; used in vblank_imm_isr, not sure for what yet
-data_table_85b6:
+; used for color-shifting objects like electrocution, walls, and the bonus counter. every frame, the next one of these is stored in rot_color.
+rotating_colors:
         .byte   $1A,$96,$28,$66,$C6,$56,$0E,$F6 ; 85B6 1A 96 28 66 C6 56 0E F6  ..(f.V..
 ; ----------------------------------------------------------------------------
 ; X/Y movement, indexed by joystick_state << 1, each entry is XXYY, $FF is -1
@@ -1231,7 +1236,7 @@
         .addr   position_missiles               ; 85EE 93 82                    ..
         .addr   bullet_logic                    ; 85F0 69 8E                    i.
         .addr   check_falling_2                 ; 85F2 00 89                    ..
-        .addr   sfx_player_entry                ; 85F4 57 81                    W.
+        .addr   snd_player_entry                ; 85F4 57 81                    W.
 ; ----------------------------------------------------------------------------
 zero_filler_85f6:
         .byte   $00,$00,$00,$00,$00,$00,$00,$00 ; 85F6 00 00 00 00 00 00 00 00  ........
@@ -1412,15 +1417,15 @@
         dex                                     ; 8742 CA                       .
         bne     L8736                           ; 8743 D0 F1                    ..
         lda     #$2B                            ; 8745 A9 2B                    .+
-        sta     $B8                             ; 8747 85 B8                    ..
+        sta     zp_temp4                        ; 8747 85 B8                    ..
         lda     #$00                            ; 8749 A9 00                    ..
-        sta     $B7                             ; 874B 85 B7                    ..
+        sta     zp_temp3                        ; 874B 85 B7                    ..
         tay                                     ; 874D A8                       .
         ldx     #$05                            ; 874E A2 05                    ..
-L8750:  sta     ($B7),y                         ; 8750 91 B7                    ..
+L8750:  sta     (zp_temp3),y                    ; 8750 91 B7                    ..
         iny                                     ; 8752 C8                       .
         bne     L8750                           ; 8753 D0 FB                    ..
-        inc     $B8                             ; 8755 E6 B8                    ..
+        inc     zp_temp4                        ; 8755 E6 B8                    ..
         dex                                     ; 8757 CA                       .
         bne     L8750                           ; 8758 D0 F6                    ..
         rts                                     ; 875A 60                       `
@@ -1453,7 +1458,7 @@
         dex                                     ; 8782 CA                       .
         bne     ej_loop                         ; 8783 D0 F2                    ..
         stx     joystick_disabled               ; 8785 8E 32 06                 .2.
-        stx     sfx_lock                        ; 8788 8E 2F 06                 ./.
+        stx     snd_lock                        ; 8788 8E 2F 06                 ./.
         stx     work_level_bullet_max           ; 878B 8E 8B 07                 ...
         jsr     prepare_level                   ; 878E 20 2A 87                  *.
         jsr     silence_audio                   ; 8791 20 5B 87                  [.
@@ -1533,9 +1538,9 @@
         lda     ($B0),y                         ; 87F8 B1 B0                    ..
         sta     $06DD                           ; 87FA 8D DD 06                 ...
         lda     #$92                            ; 87FD A9 92                    ..
-        sta     sfx_ptr                         ; 87FF 8D 3C 06                 .<.
+        sta     snd_ptr                         ; 87FF 8D 3C 06                 .<.
         lda     #$88                            ; 8802 A9 88                    ..
-        sta     sfx_ptr+1                       ; 8804 8D 3D 06                 .=.
+        sta     snd_ptr+1                       ; 8804 8D 3D 06                 .=.
         lda     #$08                            ; 8807 A9 08                    ..
         jsr     cue_sfx_jv                      ; 8809 20 06 80                  ..
         ldy     bomb_idx                        ; 880C A4 B2                    ..
@@ -1703,9 +1708,9 @@
         inc     $0688                           ; 8933 EE 88 06                 ...
 play_sfx_death:
         lda     #$60                            ; 8936 A9 60                    .`
-        sta     sfx_slot_priority               ; 8938 8D 3E 06                 .>.
+        sta     snd_slot_priority               ; 8938 8D 3E 06                 .>.
         lda     #$8A                            ; 893B A9 8A                    ..
-        sta     sfx_slot_timer                  ; 893D 8D 3F 06                 .?.
+        sta     snd_slot_timer                  ; 893D 8D 3F 06                 .?.
         lda     #$07                            ; 8940 A9 07                    ..
         jsr     cue_sfx_lowprior_jv             ; 8942 20 03 80                  ..
 L8945:  lda     player_y_pos                    ; 8945 AD 83 06                 ...
@@ -1749,9 +1754,9 @@
         sta     game_display_list               ; 8997 8D 81 08                 ...
 play_sfx_bounce_1:
         lda     #$4B                            ; 899A A9 4B                    .K
-        sta     sfx_slot_priority               ; 899C 8D 3E 06                 .>.
+        sta     snd_slot_priority               ; 899C 8D 3E 06                 .>.
         lda     #$8A                            ; 899F A9 8A                    ..
-        sta     sfx_slot_timer                  ; 89A1 8D 3F 06                 .?.
+        sta     snd_slot_timer                  ; 89A1 8D 3F 06                 .?.
         lda     #$04                            ; 89A4 A9 04                    ..
         jsr     cue_sfx_lowprior_jv             ; 89A6 20 03 80                  ..
 L89A9:  ldx     $06EA                           ; 89A9 AE EA 06                 ...
@@ -1851,9 +1856,9 @@
         lda     $061F                           ; 8A80 AD 1F 06                 ...
         bne     L8A94                           ; 8A83 D0 0F                    ..
         lda     #$97                            ; 8A85 A9 97                    ..
-        sta     sfx_slot_priority               ; 8A87 8D 3E 06                 .>.
+        sta     snd_slot_priority               ; 8A87 8D 3E 06                 .>.
         lda     #$8A                            ; 8A8A A9 8A                    ..
-        sta     sfx_slot_timer                  ; 8A8C 8D 3F 06                 .?.
+        sta     snd_slot_timer                  ; 8A8C 8D 3F 06                 .?.
         lda     #$02                            ; 8A8F A9 02                    ..
         jsr     cue_sfx_lowprior_jv             ; 8A91 20 03 80                  ..
 L8A94:  jmp     L9925                           ; 8A94 4C 25 99                 L%.
@@ -2085,7 +2090,7 @@
         lda     $0640                           ; 8C39 AD 40 06                 .@.
         ora     $0642                           ; 8C3C 0D 42 06                 .B.
         ora     $0644                           ; 8C3F 0D 44 06                 .D.
-        ora     sfx_slot_duration               ; 8C42 0D 46 06                 .F.
+        ora     snd_slot_duration               ; 8C42 0D 46 06                 .F.
         bne     what_are_we_waiting_for         ; 8C45 D0 F2                    ..
         sta     jiffy_timer_1                   ; 8C47 8D 1A 06                 ...
 ; wait 192 jiffies: 3.2 sec (ntsc), 3.84 sec (pal)
@@ -2133,7 +2138,7 @@
         sta     WSYNC                           ; 8C94 8D 0A D4                 ...
         cmp     $AB                             ; 8C97 C5 AB                    ..
         bne     L8CA4                           ; 8C99 D0 09                    ..
-        lda     $062A                           ; 8C9B AD 2A 06                 .*.
+        lda     rot_color                       ; 8C9B AD 2A 06                 .*.
         sta     COLPF0                          ; 8C9E 8D 16 D0                 ...
         jmp     L8CAA                           ; 8CA1 4C AA 8C                 L..
 
@@ -2190,9 +2195,9 @@
         plp                                     ; 8CE4 28                       (
         inc     lives                           ; 8CE5 EE 0A 07                 ...
         lda     #$79                            ; 8CE8 A9 79                    .y
-        sta     sfx_ptr                         ; 8CEA 8D 3C 06                 .<.
+        sta     snd_ptr                         ; 8CEA 8D 3C 06                 .<.
         lda     #$BE                            ; 8CED A9 BE                    ..
-        sta     sfx_ptr+1                       ; 8CEF 8D 3D 06                 .=.
+        sta     snd_ptr+1                       ; 8CEF 8D 3D 06                 .=.
         lda     #$0C                            ; 8CF2 A9 0C                    ..
         jsr     cue_sfx_jv                      ; 8CF4 20 06 80                  ..
         jsr     show_lives_icons                ; 8CF7 20 BB 86                  ..
@@ -2345,9 +2350,9 @@
 bonus_lt_256:
         jsr     print_bonus_jv                  ; 8DE7 20 0F 80                  ..
         lda     #$FA                            ; 8DEA A9 FA                    ..
-        sta     sfx_slot_priority               ; 8DEC 8D 3E 06                 .>.
+        sta     snd_slot_priority               ; 8DEC 8D 3E 06                 .>.
         lda     #$8D                            ; 8DEF A9 8D                    ..
-        sta     sfx_slot_timer                  ; 8DF1 8D 3F 06                 .?.
+        sta     snd_slot_timer                  ; 8DF1 8D 3F 06                 .?.
         lda     #$07                            ; 8DF4 A9 07                    ..
         jsr     cue_sfx_lowprior_jv             ; 8DF6 20 03 80                  ..
 dec_done:
@@ -2398,7 +2403,7 @@
 L8E4C:  lda     $0640                           ; 8E4C AD 40 06                 .@.
         ora     $0642                           ; 8E4F 0D 42 06                 .B.
         ora     $0644                           ; 8E52 0D 44 06                 .D.
-        ora     sfx_slot_duration               ; 8E55 0D 46 06                 .F.
+        ora     snd_slot_duration               ; 8E55 0D 46 06                 .F.
         bne     L8E4C                           ; 8E58 D0 F2                    ..
         sta     jiffy_timer_1                   ; 8E5A 8D 1A 06                 ...
 L8E5D:  lda     jiffy_timer_1                   ; 8E5D AD 1A 06                 ...
@@ -2499,9 +2504,9 @@
 ; let player hear report
 play_sfx_bullet:
         lda     #$59                            ; 8EFB A9 59                    .Y
-        sta     sfx_slot_priority               ; 8EFD 8D 3E 06                 .>.
+        sta     snd_slot_priority               ; 8EFD 8D 3E 06                 .>.
         lda     #$8F                            ; 8F00 A9 8F                    ..
-        sta     sfx_slot_timer                  ; 8F02 8D 3F 06                 .?.
+        sta     snd_slot_timer                  ; 8F02 8D 3F 06                 .?.
         txa                                     ; 8F05 8A                       .
         pha                                     ; 8F06 48                       H
         lda     #$02                            ; 8F07 A9 02                    ..
@@ -2583,16 +2588,16 @@
 ; y = a * 5; // offset into mus_struct_table
 set_y:  tay                                     ; 8F9B A8                       .
         lda     mus00_addr1,y                   ; 8F9C B9 C3 8F                 ...
-        sta     sfx_ptr                         ; 8F9F 8D 3C 06                 .<.
+        sta     snd_ptr                         ; 8F9F 8D 3C 06                 .<.
         lda     mus00_addr1+1,y                 ; 8FA2 B9 C4 8F                 ...
-        sta     sfx_ptr+1                       ; 8FA5 8D 3D 06                 .=.
+        sta     snd_ptr+1                       ; 8FA5 8D 3D 06                 .=.
         lda     mus00_priority,y                ; 8FA8 B9 C7 8F                 ...
         jsr     cue_sfx_jv                      ; 8FAB 20 06 80                  ..
         ldy     $D6                             ; 8FAE A4 D6                    ..
         lda     mus00_addr2,y                   ; 8FB0 B9 C5 8F                 ...
-        sta     sfx_ptr                         ; 8FB3 8D 3C 06                 .<.
+        sta     snd_ptr                         ; 8FB3 8D 3C 06                 .<.
         lda     mus00_addr2+1,y                 ; 8FB6 B9 C6 8F                 ...
-        sta     sfx_ptr+1                       ; 8FB9 8D 3D 06                 .=.
+        sta     snd_ptr+1                       ; 8FB9 8D 3D 06                 .=.
         lda     mus00_priority,y                ; 8FBC B9 C7 8F                 ...
         jsr     cue_sfx_jv                      ; 8FBF 20 06 80                  ..
         rts                                     ; 8FC2 60                       `
@@ -2769,30 +2774,30 @@
         lda     #$06                            ; 9079 A9 06                    ..
         sta     work_level_sub0+1               ; 907B 8D 83 07                 ...
         lda     #$00                            ; 907E A9 00                    ..
-        sta     sfx_ptr                         ; 9080 8D 3C 06                 .<.
+        sta     snd_ptr                         ; 9080 8D 3C 06                 .<.
         lda     #$93                            ; 9083 A9 93                    ..
-        sta     sfx_ptr+1                       ; 9085 8D 3D 06                 .=.
+        sta     snd_ptr+1                       ; 9085 8D 3D 06                 .=.
         jsr     cue_sfx_jv                      ; 9088 20 06 80                  ..
         lda     #$51                            ; 908B A9 51                    .Q
-        sta     sfx_ptr                         ; 908D 8D 3C 06                 .<.
+        sta     snd_ptr                         ; 908D 8D 3C 06                 .<.
         lda     #$93                            ; 9090 A9 93                    ..
-        sta     sfx_ptr+1                       ; 9092 8D 3D 06                 .=.
+        sta     snd_ptr+1                       ; 9092 8D 3D 06                 .=.
         jsr     cue_sfx_jv                      ; 9095 20 06 80                  ..
         lda     #$9C                            ; 9098 A9 9C                    ..
-        sta     sfx_ptr                         ; 909A 8D 3C 06                 .<.
+        sta     snd_ptr                         ; 909A 8D 3C 06                 .<.
         lda     #$93                            ; 909D A9 93                    ..
-        sta     sfx_ptr+1                       ; 909F 8D 3D 06                 .=.
+        sta     snd_ptr+1                       ; 909F 8D 3D 06                 .=.
         jsr     cue_sfx_jv                      ; 90A2 20 06 80                  ..
         lda     #$D7                            ; 90A5 A9 D7                    ..
-        sta     sfx_ptr                         ; 90A7 8D 3C 06                 .<.
+        sta     snd_ptr                         ; 90A7 8D 3C 06                 .<.
         lda     #$93                            ; 90AA A9 93                    ..
-        sta     sfx_ptr+1                       ; 90AC 8D 3D 06                 .=.
+        sta     snd_ptr+1                       ; 90AC 8D 3D 06                 .=.
         jsr     cue_sfx_jv                      ; 90AF 20 06 80                  ..
         lda     #$00                            ; 90B2 A9 00                    ..
         sta     $9C                             ; 90B4 85 9C                    ..
         sta     $9D                             ; 90B6 85 9D                    ..
         lda     #$07                            ; 90B8 A9 07                    ..
-        sta     $B9                             ; 90BA 85 B9                    ..
+        sta     zp_temp5                        ; 90BA 85 B9                    ..
 ; set _sub0 to title_dancing
 start_dancing:
         lda     #$72                            ; 90BC A9 72                    .r
@@ -2863,7 +2868,7 @@
 ; ----------------------------------------------------------------------------
 ; rotate colors and play the descending tone as each letter appears on the title screen. called once per frame, uses $9c to keep track of letter. caller stops this routine being called when $9c holds $0e (meaning the last letter is done).
 fade_in_letters:
-        lda     $062A                           ; 913C AD 2A 06                 .*.
+        lda     rot_color                       ; 913C AD 2A 06                 .*.
         sta     COLOR0                          ; 913F 8D C4 02                 ...
         ldy     $9C                             ; 9142 A4 9C                    ..
 ; don't 'fade-in' the space in the title (offset 7)
@@ -2903,7 +2908,7 @@
 ; ----------------------------------------------------------------------------
 ; make jumpmen dance on title screen, called once/frame
 title_dancing:
-        lda     $062A                           ; 9172 AD 2A 06                 .*.
+        lda     rot_color                       ; 9172 AD 2A 06                 .*.
         sta     COLOR0                          ; 9175 8D C4 02                 ...
         lda     $9C                             ; 9178 A5 9C                    ..
         cmp     #$04                            ; 917A C9 04                    ..
@@ -2914,10 +2919,10 @@
 L917F:  lda     $0649                           ; 917F AD 49 06                 .I.
         and     #$0F                            ; 9182 29 0F                    ).
         bne     L917E                           ; 9184 D0 F8                    ..
-        inc     $B9                             ; 9186 E6 B9                    ..
-        lda     $B9                             ; 9188 A5 B9                    ..
+        inc     zp_temp5                        ; 9186 E6 B9                    ..
+        lda     zp_temp5                        ; 9188 A5 B9                    ..
         and     #$0F                            ; 918A 29 0F                    ).
-        sta     $B9                             ; 918C 85 B9                    ..
+        sta     zp_temp5                        ; 918C 85 B9                    ..
         bne     L917E                           ; 918E D0 EE                    ..
         ldx     $9D                             ; 9190 A6 9D                    ..
         ldy     #$FF                            ; 9192 A0 FF                    ..
@@ -3052,8 +3057,8 @@
         bne     anp_copy_loop                   ; 941F D0 F7                    ..
 ; X is now 0
 anp_loop_done:
-        stx     $B7                             ; 9421 86 B7                    ..
-        stx     $B8                             ; 9423 86 B8                    ..
+        stx     zp_temp3                        ; 9421 86 B7                    ..
+        stx     zp_temp4                        ; 9423 86 B8                    ..
         stx     randomizer_mode                 ; 9425 8E F3 06                 ...
         stx     COLOR4                          ; 9428 8E C8 02                 ...
         lda     #$04                            ; 942B A9 04                    ..
@@ -3094,13 +3099,13 @@
 ; play sfx_select_key at $95f1
 play_select_key_sfx:
         lda     #$F1                            ; 946F A9 F1                    ..
-        sta     sfx_ptr                         ; 9471 8D 3C 06                 .<.
+        sta     snd_ptr                         ; 9471 8D 3C 06                 .<.
         lda     #$95                            ; 9474 A9 95                    ..
-        sta     sfx_ptr+1                       ; 9476 8D 3D 06                 .=.
+        sta     snd_ptr+1                       ; 9476 8D 3D 06                 .=.
         jsr     cue_sfx_jv                      ; 9479 20 06 80                  ..
 ; wait for sound to finish playing
 wait_sfx:
-        lda     sfx_slot_duration               ; 947C AD 46 06                 .F.
+        lda     snd_slot_duration               ; 947C AD 46 06                 .F.
         bne     wait_sfx                        ; 947F D0 FB                    ..
         lda     #$01                            ; 9481 A9 01                    ..
         sta     start_key_enabled               ; 9483 8D C8 06                 ...
@@ -3113,11 +3118,11 @@
 option_key_handler:
         lda     #$00                            ; 9489 A9 00                    ..
         sta     option_key_enabled              ; 948B 8D C6 06                 ...
-        lda     $B8                             ; 948E A5 B8                    ..
+        lda     zp_temp4                        ; 948E A5 B8                    ..
         clc                                     ; 9490 18                       .
         adc     #$01                            ; 9491 69 01                    i.
         and     #$03                            ; 9493 29 03                    ).
-        sta     $B8                             ; 9495 85 B8                    ..
+        sta     zp_temp4                        ; 9495 85 B8                    ..
         tay                                     ; 9497 A8                       .
         lda     number_names_0,y                ; 9498 B9 DD 95                 ...
         sta     $381D                           ; 949B 8D 1D 38                 ..8
@@ -3133,9 +3138,9 @@
         sta     HSCROL                          ; 94B9 8D 04 D4                 ...
 play_opt_key_sfx:
         lda     #$B0                            ; 94BC A9 B0                    ..
-        sta     sfx_ptr                         ; 94BE 8D 3C 06                 .<.
+        sta     snd_ptr                         ; 94BE 8D 3C 06                 .<.
         lda     #$8A                            ; 94C1 A9 8A                    ..
-        sta     sfx_ptr+1                       ; 94C3 8D 3D 06                 .=.
+        sta     snd_ptr+1                       ; 94C3 8D 3D 06                 .=.
         jsr     cue_sfx_jv                      ; 94C6 20 06 80                  ..
         lda     #$00                            ; 94C9 A9 00                    ..
         sta     jiffy_timer_1                   ; 94CB 8D 1A 06                 ...
@@ -3151,19 +3156,19 @@
 ; ----------------------------------------------------------------------------
 ; loop up to 4 times, ask PLAYER #n SPEED? and wait for number key press
 get_player_speeds:
-        lda     $B8                             ; 94DE A5 B8                    ..
-        sta     $B9                             ; 94E0 85 B9                    ..
+        lda     zp_temp4                        ; 94DE A5 B8                    ..
+        sta     zp_temp5                        ; 94E0 85 B9                    ..
         sta     number_of_users                 ; 94E2 8D FF 06                 ...
         sta     users_still_alive               ; 94E5 8D F4 06                 ...
         lda     #$00                            ; 94E8 A9 00                    ..
-        sta     $B8                             ; 94EA 85 B8                    ..
+        sta     zp_temp4                        ; 94EA 85 B8                    ..
 ; disable start and option keys
 disable_start_opt:
         sta     option_key_enabled              ; 94EC 8D C6 06                 ...
         sta     start_key_enabled               ; 94EF 8D C8 06                 ...
-        sta     $BA                             ; 94F2 85 BA                    ..
-        inc     $B9                             ; 94F4 E6 B9                    ..
-        inc     $BA                             ; 94F6 E6 BA                    ..
+        sta     zp_temp6                        ; 94F2 85 BA                    ..
+        inc     zp_temp5                        ; 94F4 E6 B9                    ..
+        inc     zp_temp6                        ; 94F6 E6 BA                    ..
         tay                                     ; 94F8 A8                       .
 ; copy PLAYER #n SPEED? to screen RAM
 show_player_speed_prompt:
@@ -3175,12 +3180,12 @@
         iny                                     ; 9502 C8                       .
         cpx     #$14                            ; 9503 E0 14                    ..
         bne     psprompt_loop                   ; 9505 D0 F4                    ..
-        lda     $BA                             ; 9507 A5 BA                    ..
+        lda     zp_temp6                        ; 9507 A5 BA                    ..
         sta     current_user                    ; 9509 8D FE 06                 ...
         ora     #$90                            ; 950C 09 90                    ..
-        inc     $BA                             ; 950E E6 BA                    ..
+        inc     zp_temp6                        ; 950E E6 BA                    ..
         sta     $3821,y                         ; 9510 99 21 38                 .!8
-        dec     $B9                             ; 9513 C6 B9                    ..
+        dec     zp_temp5                        ; 9513 C6 B9                    ..
         bne     show_player_speed_prompt        ; 9515 D0 E2                    ..
 ; set select key vector to ask_num_players at $9400, enable select key
 setup_select_key_vec_again:
@@ -3189,7 +3194,7 @@
         lda     #$94                            ; 951C A9 94                    ..
         sta     select_key_vec+1                ; 951E 8D C3 06                 ...
         sta     select_key_enabled              ; 9521 8D C7 06                 ...
-        dec     $BA                             ; 9524 C6 BA                    ..
+        dec     zp_temp6                        ; 9524 C6 BA                    ..
         ldy     #$12                            ; 9526 A0 12                    ..
         ldx     #$00                            ; 9528 A2 00                    ..
 ; initialize speed to -1
@@ -3220,8 +3225,8 @@
         clc                                     ; 9546 18                       .
         adc     #$14                            ; 9547 69 14                    i.
         tay                                     ; 9549 A8                       .
-        inc     $B8                             ; 954A E6 B8                    ..
-        dec     $BA                             ; 954C C6 BA                    ..
+        inc     zp_temp4                        ; 954A E6 B8                    ..
+        dec     zp_temp6                        ; 954C C6 BA                    ..
         bne     init_speed                      ; 954E D0 DA                    ..
         inc     number_of_users                 ; 9550 EE FF 06                 ...
         lda     number_of_users                 ; 9553 AD FF 06                 ...
@@ -3240,16 +3245,16 @@
 ; DLI service routine, changes COLPF2, address gets stored in $6ae/$6af by code at $944e
 num_players_dli_service:
         pha                                     ; 9578 48                       H
-        lda     $B7                             ; 9579 A5 B7                    ..
-        cmp     $B8                             ; 957B C5 B8                    ..
+        lda     zp_temp3                        ; 9579 A5 B7                    ..
+        cmp     zp_temp4                        ; 957B C5 B8                    ..
         sta     WSYNC                           ; 957D 8D 0A D4                 ...
         bne     L9592                           ; 9580 D0 10                    ..
-        lda     $062A                           ; 9582 AD 2A 06                 .*.
+        lda     rot_color                       ; 9582 AD 2A 06                 .*.
         sta     COLPF2                          ; 9585 8D 18 D0                 ...
-L9588:  inc     $B7                             ; 9588 E6 B7                    ..
-        lda     $B7                             ; 958A A5 B7                    ..
+L9588:  inc     zp_temp3                        ; 9588 E6 B7                    ..
+        lda     zp_temp3                        ; 958A A5 B7                    ..
         and     #$03                            ; 958C 29 03                    ).
-        sta     $B7                             ; 958E 85 B7                    ..
+        sta     zp_temp3                        ; 958E 85 B7                    ..
         pla                                     ; 9590 68                       h
         rti                                     ; 9591 40                       @
 
@@ -3294,7 +3299,10 @@
 ; played when select key pressed, 4 notes, descending
 sfx_select_key:
         .byte   $01,$A4,$00,$1D,$08,$3C,$08,$79 ; 95F1 01 A4 00 1D 08 3C 08 79  .....<.y
-        .byte   $08,$F3,$08,$00,$3C,$02,$00     ; 95F9 08 F3 08 00 3C 02 00     ....<..
+        .byte   $08,$F3,$08,$00                 ; 95F9 08 F3 08 00              ....
+; not sure what (if anything) reads this, it might be filler. it isn't valid 6502 code.
+unknown_95fd:
+        .byte   $3C,$02,$00                     ; 95FD 3C 02 00                 <..
 ; ----------------------------------------------------------------------------
 ; multiple code paths jump here. replay level, load next level, or go back to ask_num_players
 afterlife:
@@ -3330,7 +3338,7 @@
         ora     #$10                            ; 963E 09 10                    ..
         sta     $074A                           ; 9640 8D 4A 07                 .J.
         lda     #$00                            ; 9643 A9 00                    ..
-        sta     $B9                             ; 9645 85 B9                    ..
+        sta     zp_temp5                        ; 9645 85 B9                    ..
         sta     jiffy_timer_2                   ; 9647 8D 1B 06                 ...
 ; 06ac/06ad gets address of get_ready_dlist (why not SDLSTL/H?)
 setup_get_ready_dl:
@@ -3505,7 +3513,7 @@
         sta     $0697                           ; 9791 8D 97 06                 ...
         sta     $0698                           ; 9794 8D 98 06                 ...
         sta     PCOLR0                          ; 9797 8D C0 02                 ...
-        sta     $BA                             ; 979A 85 BA                    ..
+        sta     zp_temp6                        ; 979A 85 BA                    ..
         sta     AUDF4                           ; 979C 8D 06 D2                 ...
         lda     work_level_y_start              ; 979F AD 8C 07                 ...
         sta     player_y_pos                    ; 97A2 8D 83 06                 ...
@@ -3518,9 +3526,9 @@
         inc     $066A                           ; 97B5 EE 6A 06                 .j.
         inc     $066B                           ; 97B8 EE 6B 06                 .k.
 mj_set_freq_and_color:
-        inc     $BA                             ; 97BB E6 BA                    ..
+        inc     zp_temp6                        ; 97BB E6 BA                    ..
         beq     mj_done                         ; 97BD F0 1C                    ..
-        lda     $BA                             ; 97BF A5 BA                    ..
+        lda     zp_temp6                        ; 97BF A5 BA                    ..
         sta     AUDF4                           ; 97C1 8D 06 D2                 ...
         lsr     a                               ; 97C4 4A                       J
         lsr     a                               ; 97C5 4A                       J
@@ -3672,9 +3680,9 @@
 ; horizontal movement
 play_sfx_walk:
         lda     #$73                            ; 98C1 A9 73                    .s
-        sta     sfx_slot_priority               ; 98C3 8D 3E 06                 .>.
+        sta     snd_slot_priority               ; 98C3 8D 3E 06                 .>.
         lda     #$BE                            ; 98C6 A9 BE                    ..
-        sta     sfx_slot_timer                  ; 98C8 8D 3F 06                 .?.
+        sta     snd_slot_timer                  ; 98C8 8D 3F 06                 .?.
         lda     #$01                            ; 98CB A9 01                    ..
         jsr     cue_sfx_lowprior_jv             ; 98CD 20 03 80                  ..
 L98D0:  lda     sav_p0pf                        ; 98D0 AD B4 06                 ...
@@ -4080,7 +4088,7 @@
         lda     #$00                            ; 9B88 A9 00                    ..
         sta     WSYNC                           ; 9B8A 8D 0A D4                 ...
         sta     COLBK                           ; 9B8D 8D 1A D0                 ...
-        lda     $062A                           ; 9B90 AD 2A 06                 .*.
+        lda     rot_color                       ; 9B90 AD 2A 06                 .*.
         sta     COLPF0                          ; 9B93 8D 16 D0                 ...
         lda     #$28                            ; 9B96 A9 28                    .(
         sta     COLPF1                          ; 9B98 8D 17 D0                 ...
@@ -5784,9 +5792,9 @@
         lda     #$08                            ; A518 A9 08                    ..
         sta     current_speed                   ; A51A 8D 24 06                 .$.
         lda     #$2D                            ; A51D A9 2D                    .-
-        sta     sfx_slot_priority               ; A51F 8D 3E 06                 .>.
+        sta     snd_slot_priority               ; A51F 8D 3E 06                 .>.
         lda     #$A5                            ; A522 A9 A5                    ..
-        sta     sfx_slot_timer                  ; A524 8D 3F 06                 .?.
+        sta     snd_slot_timer                  ; A524 8D 3F 06                 .?.
         lda     #$01                            ; A527 A9 01                    ..
         jsr     cue_sfx_lowprior_jv             ; A529 20 03 80                  ..
         rts                                     ; A52C 60                       `
@@ -6069,9 +6077,9 @@
         pha                                     ; A88C 48                       H
 play_hellstone_sfx:
         lda     #$0D                            ; A88D A9 0D                    ..
-        sta     sfx_slot_priority               ; A88F 8D 3E 06                 .>.
+        sta     snd_slot_priority               ; A88F 8D 3E 06                 .>.
         lda     #$A9                            ; A892 A9 A9                    ..
-        sta     sfx_slot_timer                  ; A894 8D 3F 06                 .?.
+        sta     snd_slot_timer                  ; A894 8D 3F 06                 .?.
         lda     #$03                            ; A897 A9 03                    ..
         jsr     cue_sfx_lowprior_jv             ; A899 20 03 80                  ..
         pla                                     ; A89C 68                       h
@@ -6287,7 +6295,7 @@
         .byte   $C9,$9C,$50,$08,$0A,$FF         ; AAB6 C9 9C 50 08 0A FF        ..P...
 ; ----------------------------------------------------------------------------
 walls_sub3:
-        lda     $062A                           ; AABC AD 2A 06                 .*.
+        lda     rot_color                       ; AABC AD 2A 06                 .*.
         sta     COLOR3                          ; AABF 8D C7 02                 ...
         rts                                     ; AAC2 60                       `
 
@@ -6503,7 +6511,9 @@
 epyx_jumpman:
         .byte   $40,$29,$21,$11,$19,$11,$09,$01 ; AEAF 40 29 21 11 19 11 09 01  @)!.....
         .byte   $49,$41,$39,$19,$31             ; AEB7 49 41 39 19 31           IA9.1
-LAEBC:  .byte   $03,$03,$03,$03,$03,$C3,$C3,$7E ; AEBC 03 03 03 03 03 C3 C3 7E  .......~
+; player graphics for letters. each letter is 8x8 (8 bytes, 8px/byte), takes up the whole 8x8 cell (no blanks at edges like a normal font would have). no duplicate letters, so this spells 'JUMPANEYX ' (space at the end)
+letter_bitmap:
+        .byte   $03,$03,$03,$03,$03,$C3,$C3,$7E ; AEBC 03 03 03 03 03 C3 C3 7E  .......~
         .byte   $C3,$C3,$C3,$C3,$C3,$C3,$C3,$7E ; AEC4 C3 C3 C3 C3 C3 C3 C3 7E  .......~
         .byte   $C3,$C3,$E7,$FF,$DB,$C3,$C3,$C3 ; AECC C3 C3 E7 FF DB C3 C3 C3  ........
         .byte   $FE,$C3,$C3,$C3,$FE,$C0,$C0,$C0 ; AED4 FE C3 C3 C3 FE C0 C0 C0  ........
@@ -6513,13 +6523,12 @@
         .byte   $C3,$66,$3C,$18,$18,$18,$18,$18 ; AEF4 C3 66 3C 18 18 18 18 18  .f<.....
         .byte   $C3,$C3,$66,$3C,$3C,$66,$C3,$C3 ; AEFC C3 C3 66 3C 3C 66 C3 C3  ..f<<f..
         .byte   $00,$00,$00,$00,$00,$00,$00,$00 ; AF04 00 00 00 00 00 00 00 00  ........
-        .byte   $40,$A0,$20,$40                 ; AF0C 40 A0 20 40              @. @
-; looks almost like code but it's bogus
-data_af10:
-        .byte   $E0,$00,$38,$20,$30,$08,$30,$04 ; AF10 E0 00 38 20 30 08 30 04  ..8 0.0.
-        .byte   $0A,$0A,$0A,$04                 ; AF18 0A 0A 0A 04              ....
+; the little 250 that gets displayed at end of level, for each letter
+bonus_250:
+        .byte   $40,$A0,$20,$40,$E0,$00,$38,$20 ; AF0C 40 A0 20 40 E0 00 38 20  @. @..8 
+        .byte   $30,$08,$30,$04,$0A,$0A,$0A,$04 ; AF14 30 08 30 04 0A 0A 0A 04  0.0.....
 ; ----------------------------------------------------------------------------
-LAF1C:  lda     $062A                           ; AF1C AD 2A 06                 .*.
+LAF1C:  lda     rot_color                       ; AF1C AD 2A 06                 .*.
         sta     PCOLR2                          ; AF1F 8D C2 02                 ...
         rts                                     ; AF22 60                       `
 
@@ -6537,7 +6546,7 @@
         ldx     $0770                           ; AF33 AE 70 07                 .p.
         lda     #$08                            ; AF36 A9 08                    ..
         sta     $0772                           ; AF38 8D 72 07                 .r.
-LAF3B:  lda     LAEBC,y                         ; AF3B B9 BC AE                 ...
+LAF3B:  lda     letter_bitmap,y                 ; AF3B B9 BC AE                 ...
         sta     $2E00,x                         ; AF3E 9D 00 2E                 ...
         inx                                     ; AF41 E8                       .
         iny                                     ; AF42 C8                       .
@@ -6615,9 +6624,9 @@
 ; play sfx_letter_bonus
 cue_letter_sfx:
         lda     #$CB                            ; AFB9 A9 CB                    ..
-        sta     sfx_ptr                         ; AFBB 8D 3C 06                 .<.
+        sta     snd_ptr                         ; AFBB 8D 3C 06                 .<.
         lda     #$AF                            ; AFBE A9 AF                    ..
-        sta     sfx_ptr+1                       ; AFC0 8D 3D 06                 .=.
+        sta     snd_ptr+1                       ; AFC0 8D 3D 06                 .=.
         jsr     cue_sfx_jv                      ; AFC3 20 06 80                  ..
         pla                                     ; AFC6 68                       h
         tax                                     ; AFC7 AA                       .
@@ -6916,7 +6925,7 @@
         and     #$03                            ; B2EA 29 03                    ).
         sta     $068A                           ; B2EC 8D 8A 06                 ...
         inc     $068A                           ; B2EF EE 8A 06                 ...
-LB2F2:  lda     $062A                           ; B2F2 AD 2A 06                 .*.
+LB2F2:  lda     rot_color                       ; B2F2 AD 2A 06                 .*.
         sta     PCOLR2                          ; B2F5 8D C2 02                 ...
         lda     #$00                            ; B2F8 A9 00                    ..
         jmp     check_pl_coll_no_pl             ; B2FA 4C 79 8F                 Ly.
@@ -6928,9 +6937,9 @@
         lda     $0685                           ; B303 AD 85 06                 ...
         sta     player_y_pos                    ; B306 8D 83 06                 ...
         lda     #$19                            ; B309 A9 19                    ..
-        sta     sfx_ptr                         ; B30B 8D 3C 06                 .<.
+        sta     snd_ptr                         ; B30B 8D 3C 06                 .<.
         lda     #$B3                            ; B30E A9 B3                    ..
-        sta     sfx_ptr+1                       ; B310 8D 3D 06                 .=.
+        sta     snd_ptr+1                       ; B310 8D 3D 06                 .=.
         lda     #$07                            ; B313 A9 07                    ..
         jsr     cue_sfx_jv                      ; B315 20 06 80                  ..
         rts                                     ; B318 60                       `
@@ -7053,9 +7062,9 @@
         bne     LB4E2                           ; B4D1 D0 0F                    ..
 cue_woop_sound:
         lda     #$64                            ; B4D3 A9 64                    .d
-        sta     sfx_slot_priority               ; B4D5 8D 3E 06                 .>.
+        sta     snd_slot_priority               ; B4D5 8D 3E 06                 .>.
         lda     #$B5                            ; B4D8 A9 B5                    ..
-        sta     sfx_slot_timer                  ; B4DA 8D 3F 06                 .?.
+        sta     snd_slot_timer                  ; B4DA 8D 3F 06                 .?.
         lda     #$03                            ; B4DD A9 03                    ..
         jsr     cue_sfx_lowprior_jv             ; B4DF 20 03 80                  ..
 LB4E2:  ldy     #$01                            ; B4E2 A0 01                    ..
@@ -7104,7 +7113,7 @@
 
 ; ----------------------------------------------------------------------------
 hatch_sub1:
-        lda     $062A                           ; B581 AD 2A 06                 .*.
+        lda     rot_color                       ; B581 AD 2A 06                 .*.
         sta     PCOLR3                          ; B584 8D C3 02                 ...
         rts                                     ; B587 60                       `
 
@@ -7358,13 +7367,13 @@
 ; play once per life
 play_life_bonus_sfx:
         lda     #$96                            ; B868 A9 96                    ..
-        sta     sfx_ptr                         ; B86A 8D 3C 06                 .<.
+        sta     snd_ptr                         ; B86A 8D 3C 06                 .<.
         lda     #$B8                            ; B86D A9 B8                    ..
-        sta     sfx_ptr+1                       ; B86F 8D 3D 06                 .=.
+        sta     snd_ptr+1                       ; B86F 8D 3D 06                 .=.
         jsr     cue_sfx_jv                      ; B872 20 06 80                  ..
 ; wait for sfx to finish
 el_wait_sfx:
-        lda     sfx_slot_duration               ; B875 AD 46 06                 .F.
+        lda     snd_slot_duration               ; B875 AD 46 06                 .F.
         ora     $0644                           ; B878 0D 44 06                 .D.
         bne     el_wait_sfx                     ; B87B D0 F8                    ..
         dec     $A6                             ; B87D C6 A6                    ..
@@ -7750,7 +7759,7 @@
 ; ----------------------------------------------------------------------------
 ; used in work_level_sub0 slot during well_doneused in work_level_sub1 slot during well_done
 well_done_sub0:
-        lda     $062A                           ; BCCD AD 2A 06                 .*.
+        lda     rot_color                       ; BCCD AD 2A 06                 .*.
         sta     COLOR2                          ; BCD0 8D C6 02                 ...
         lda     #$02                            ; BCD3 A9 02                    ..
         sta     sav_p0pf                        ; BCD5 8D B4 06                 ...
-- 
cgit v1.2.3