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lemm: clean up the text a bit

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This commit is contained in:
Vince Weaver 2022-03-09 17:04:19 -05:00
parent 64d38d1cc2
commit ccf6cf974d
4 changed files with 235 additions and 79 deletions
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201
games/lemm/gr_fast_clear.s Normal file
View File

@ -0,0 +1,201 @@
;clear_screens:
; ;===================================
; ; Clear top/bottom of page 0
; ;===================================
;
; lda #$0
; sta DRAW_PAGE
; jsr clear_top
; jsr clear_bottom
; ;===================================
; ; Clear top/bottom of page 1
; ;===================================
;
; lda #$4
; sta DRAW_PAGE
; jsr clear_top
; jsr clear_bottom
;
; rts
;=========================================================
; clear_top
;=========================================================
; clear DRAW_PAGE
; original = 14,558 cycles(?) 15ms, 70Hz
; OPTIMIZED MAX (page0,48rows): 45*120+4+6 = 5410 = 5.4ms 185Hz
; (pageX,40rows): 50*120+4+6 = 6010 = 6.0ms 166Hz
; 50*120+4+6+37 = 6055 = 6.0ms 166Hz
clear_top:
lda #0 ; 2
clear_top_a:
sta COLOR ; 3
clc ; 2
lda DRAW_PAGE ; 3
adc #4 ; 2
sta __ctf+2 ; 3
sta __ctf+5 ; 3
adc #1 ; 2
sta __ctf+8 ; 3
sta __ctf+11 ; 3
adc #1 ; 2
sta __ctf2+2 ; 3
sta __ctf2+5 ; 3
adc #1 ; 2
sta __ctf2+8 ; 3
sta __ctf2+11 ; 3
ldy #120 ; 2
lda COLOR ; 3
clear_top_fast_loop:
__ctf:
sta $400,Y ; 5
sta $480,Y ; 5
sta $500,Y ; 5
sta $580,Y ; 5
cpy #80 ; 2
bpl no_draw_bottom ; 2nt/3
__ctf2:
sta $600,Y ; 5
sta $680,Y ; 5
sta $700,Y ; 5
sta $780,Y ; 5
no_draw_bottom:
dey ; 2
bpl clear_top_fast_loop ; 2nt/3
rts ; 6
;=========================================================
; clear_bottom
;=========================================================
; clear bottom of draw page
clear_bottom:
clc ; 2
lda DRAW_PAGE ; 3
adc #6 ; 2
sta __cbf2+2 ; 3
sta __cbf2+5 ; 3
adc #1 ; 2
sta __cbf2+8 ; 3
sta __cbf2+11 ; 3
ldy #120 ; 2
lda #$a0 ; Normal Space ; 2
clear_bottom_fast_loop:
__cbf2:
sta $600,Y ; 5
sta $680,Y ; 5
sta $700,Y ; 5
sta $780,Y ; 5
dey ; 2
cpy #80 ; 2
bpl clear_bottom_fast_loop ; 2nt/3
rts ; 6
;clear_screens_notext:
;===================================
; Clear top/bottom of page 0
;===================================
; lda #$0
; sta DRAW_PAGE
; jsr clear_all
;===================================
; Clear top/bottom of page 1
;===================================
; lda #$4
; sta DRAW_PAGE
; jsr clear_all
; rts
clear_bottoms:
lda DRAW_PAGE
pha
;===================================
; Clear bottom of page 0
;===================================
lda #$0
sta DRAW_PAGE
jsr clear_bottom
;===================================
; Clear bottom of page 1
;===================================
lda #$4
sta DRAW_PAGE
jsr clear_bottom
pla
sta DRAW_PAGE
rts
;=========================================================
; clear_all
;=========================================================
; clear 48 rows
clear_all:
clc ; 2
lda DRAW_PAGE ; 3
adc #4 ; 2
sta __caf+2 ; 3
sta __caf+5 ; 3
adc #1 ; 2
sta __caf+8 ; 3
sta __caf+11 ; 3
adc #1 ; 2
sta __caf2+2 ; 3
sta __caf2+5 ; 3
adc #1 ; 2
sta __caf2+8 ; 3
sta __caf2+11 ; 3
ldy #120 ; 2
clear_all_color:
lda #' '|$80 ; 2
clear_all_fast_loop:
__caf:
sta $400,Y ; 5
sta $480,Y ; 5
sta $500,Y ; 5
sta $580,Y ; 5
__caf2:
sta $600,Y ; 5
sta $680,Y ; 5
sta $700,Y ; 5
sta $780,Y ; 5
dey ; 2
bpl clear_all_fast_loop ; 2nt/3
rts ; 6

18
games/lemm/intro_level1.s
View File

@ -1,11 +1,27 @@
;=====================================
; print the intro message for level1
;=====================================
intro_level1:
; clear text screen
jsr clear_all
; print non-inverse
jsr set_normal
; print messages
lda #<level1_intro_text
sta OUTL
lda #>level1_intro_text
sta OUTH
; print the text
ldx #8
text_loop:
@ -14,6 +30,8 @@ text_loop:
dex
bne text_loop
; wait until keypress
jsr wait_until_keypress
rts

2
games/lemm/lemm.s
View File

@ -391,7 +391,7 @@ load_song_chunk_good:
.include "wait_keypress.s"
; .include "print_help.s"
; .include "gr_fast_clear.s"
.include "gr_fast_clear.s"
.include "hgr_14x14_sprite.s"

93
games/lemm/text_print.s
View File

@ -60,86 +60,23 @@ done_print_string:
rts
; set normal text
set_normal:
lda #$80
sta ps_smc1+1
.if 0
;================================
; move and print a list of lines
;================================
move_and_print_list:
jsr move_and_print
ldy #0
lda (OUTL),Y
bpl move_and_print_list
lda #09 ; ora
sta ps_smc1
rts
; restore inverse text
set_inverse:
lda #$29
sta ps_smc1
lda #$3f
sta ps_smc1+1
rts
;================================
; move and print a list of lines
;================================
move_and_print_list_both_pages:
lda DRAW_PAGE
pha
lda OUTL
pha
lda OUTH
pha
lda #0
sta DRAW_PAGE
jsr move_and_print_list
pla
sta OUTH
pla
sta OUTL
lda #4
sta DRAW_PAGE
jsr move_and_print_list
pla
sta DRAW_PAGE
rts
;=======================
; print to both pages
;=======================
print_both_pages:
lda DRAW_PAGE
pha
lda OUTL
pha
lda OUTH
pha
lda #0
sta DRAW_PAGE
jsr move_and_print
pla
sta OUTH
pla
sta OUTL
lda #4
sta DRAW_PAGE
jsr move_and_print
pla
sta DRAW_PAGE
rts
.endif