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gr: tunnel: need 10 more bytes

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This commit is contained in:
Vince Weaver 2021-06-08 01:58:50 -04:00
parent 369a2b1275
commit fa8995df4e
2 changed files with 139 additions and 33 deletions
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130
graphics/gr/tunnel/t.s
View File

@ -1,7 +1,18 @@
; 186 bytes -- original
; 178 bytes -- not using line 7 of lookup table
; 168 bytes -- color can wrap
; 167 bytes -- unnecessary clc
; 163 bytes -- no need to init color at beginning
; 154 bytes -- optimize some calculations
H2 = $2C
V2 = $2D
COLOR = $30
QL = $F5
QH = $F6
VL = $F7
VH = $F8
P = $F9
Q = $FA
J = $FB
@ -22,10 +33,47 @@ tunnel:
; 1 GR:N=23
jsr SETGR
; bit FULLGR
lda #23
sta NEWCOLOR
.if 0
make_table:
lda #$2
sta VH
lda #$0
tay
sta VL
bigloop:
lda #0
sta QL
sta QH
tax
qqloop:
clc
lda VL
adc QL
sta QL
lda VH
adc QH
sta QH
inx
cmp #$28
bcc qqloop
txa
sta lookup,Y
iny
clc
lda VL
adc #$24
sta VL
lda #0
adc VH
sta VH
cmp #$A
bne bigloop
.endif
forq:
@ -40,7 +88,8 @@ qloop:
; 3 FOR I=0 TO 19:IF 20-I>A(P,Q) THEN 7
fori:
ldx #0
tax ; X is 0
iloop:
lda Q
asl
@ -60,25 +109,23 @@ iloop:
inc P
txa
eor #$ff
sec
adc #39
; A is already 20-I at this point, carry is clear
adc #19
sta Z
sta H2
sta V2
dec H2
dec V2
tay
dey
sty H2
sty V2
txa
clc
adc #1
sta J
stx J
inc J
; 6 COLOR=N+P:HLIN J,W AT I:HLIN J,W AT Z:VLIN J,W AT I:VLIN J,W AT Z
; c always 0?
lda P
clc
; clc
adc NEWCOLOR
jsr SETCOL
@ -117,19 +164,13 @@ skip:
inx
cpx #19
bne iloop
blah:
dec Q
bpl qloop
inc NEWCOLOR
lda NEWCOLOR
cmp #32
bne blah
lda #16
sta NEWCOLOR
blah:
; wrapping 255 to 0 is OK
end:
; 8 GOTO 2
@ -139,14 +180,37 @@ end:
; 0 DIM A(9,9):FOR I=0 TO 8:FOR J=0 TO 8:A(I,J)=40/(2+I+J/7):NEXTJ,I
lookup:
.byte 20,13,10,8,6,5,5,4
.byte 18,12, 9,7,6,5,4,4
.byte 17,12, 9,7,6,5,4,4
.byte 16,11, 9,7,6,5,4,4
.byte 15,11, 8,7,6,5,4,4
.byte 14,10, 8,7,5,5,4,4
.byte 14,10, 8,6,5,5,4,4
.byte 13,10, 8,6,5,5,4,4
.byte 20,13,10,8,7,6,5,4 ; 2.0 3.0 4,0 5,0 6.0 7.0 8.0 9.0
.byte 19,13,10,8,7,6,5,4 ; 2.1 3.1 4.1 5.1 6.1 7.1 8.1 9.1
.byte 18,12,9,8,6,5,5,4
.byte 17,12,9,7,6,5,5,4
.byte 16,11,9,7,6,5,5,4
.byte 15,11,9,7,6,5,5,4
.byte 14,10,8,7,6,5,5,4
; (P*7)+Q
; .byte 20,18,17,16,15,14,14
; .byte 13,12,12,11,11,10,10
; .byte 10, 9, 9, 9, 8, 8, 8
; .byte 8, 7, 7, 7, 7, 7, 6
; .byte 6, 6, 6, 6, 6, 5, 5
; .byte 5, 4, 4, 4, 4, 4, 4
; .byte 4, 4, 4, 4, 4, 4, 4
; (Q<<8)|P Q 6..0 P 0..6
; .byte 20,13,10,8,6,5,5,4 ; 0
; .byte 18,12, 9,7,6,5,4,4 ; 1
; .byte 17,12, 9,7,6,5,4,4 ; 2
; .byte 16,11, 9,7,6,5,4,4 ; 3
; .byte 15,11, 8,7,6,5,4,4 ; 4
; .byte 14,10, 8,7,5,5,4,4 ; 5
; .byte 14,10, 8,6,5,5,4,4 ; 6
; need for bot

42
graphics/gr/tunnel/table.c
View File

@ -4,6 +4,10 @@ int main(int argc, char **argv) {
double x,y;
// 6.2 FLOAT POINT
// 2 3 4 5 6 7 8
// 2.1 3.1 4.1 5.1 6.1
for(y=0;y<1;y+=1.0/7.0) {
printf("%.2lf: ",y);
for(x=2.0+y;x<=9.0+y;x++) {
@ -22,5 +26,43 @@ int main(int argc, char **argv) {
printf("\n");
}
// 6.2 FLOAT POINT
// 2 3 4 5 6 7 8
// 2.1 3.1 4.1 5.1 6.1
int q;
for(y=0;y<7;y++) {
q=y*0x24;
for(x=0x200+q;x<=0x900+q;x+=0x100) {
printf("%.0lf,",0x2800/x);
}
printf("\n");
}
printf("\n");
y=7;
q=0;
yloop:
x=0x200+q;
xloop:
printf("%02X,",(int)(0x2800/x));
x=x+0x100;
if (x<0xA00+q) goto xloop;
printf("\n");
q=q+0x24;
y=y-1;
if (y>=0) goto yloop;
printf("\n");
return 0;
}
// 40/(2+I+J/7)
// 0.1 0.2 0.3 ... 0.7
// 1.0 1.1