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Started implementing the sprite port for the screen device

This commit is contained in:
neauoire 2021-07-30 19:23:02 -07:00
parent 486e79c48d
commit d2c3d0e524
4 changed files with 28 additions and 16 deletions
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2
build.sh
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@ -54,7 +54,7 @@ then
fi
echo "Assembling.."
./bin/uxnasm projects/examples/demos/piano.tal bin/piano.rom
./bin/uxnasm projects/examples/devices/piano.tal bin/piano.rom
echo "Running.."
./bin/uxnemu bin/piano.rom

18
projects/examples/devices/screen.tal
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@ -7,7 +7,7 @@
( devices )
|00 @System [ &vector $2 &pad $6 &r $2 &g $2 &b $2 ]
|20 @Screen [ &vector $2 &width $2 &height $2 &pad $2 &x $2 &y $2 &addr $2 &color $1 ]
|20 @Screen [ &vector $2 &width $2 &height $2 &pad $2 &x $2 &y $2 &addr $2 &color $1 &sprite $1 ]
( variables )
@ -44,7 +44,7 @@ BRK
.center/x LDZ2 #0040 SUB2 ADD2 .Screen/x DEO2
( move ) OVR #f0 AND #02 DIV #00 SWP
.center/y LDZ2 #0040 SUB2 ADD2 .Screen/y DEO2
( draw ) OVR .Screen/color DEO
( draw ) OVR .Screen/sprite DEO
( incr ) SWP #01 ADD SWP
NEQk ,&loop JCN
POP2
@ -60,12 +60,12 @@ RTN
OVR #08 MUL #00 SWP
.center/x LDZ2 #0040 SUB2 ADD2 .Screen/x DEO2
.center/y LDZ2 #0050 SUB2 .Screen/y DEO2
( draw ) #21 .Screen/color DEO
( draw ) #01 .Screen/sprite DEO
( y-axis )
OVR #08 MUL #00 SWP
.center/y LDZ2 #0040 SUB2 ADD2 .Screen/y DEO2
.center/x LDZ2 #0050 SUB2 .Screen/x DEO2
( draw ) #21 .Screen/color DEO
( draw ) #01 .Screen/sprite DEO
( incr ) SWP #01 ADD SWP
LTHk ,&loop JCN
POP2
@ -77,14 +77,14 @@ RTN
;preview_icn .Screen/addr DEO2
.center/x LDZ2 #0048 ADD2 .Screen/x DEO2
.center/y LDZ2 #0030 ADD2 .Screen/y DEO2
#21 .Screen/color DEO
#01 .Screen/sprite DEO
.center/x LDZ2 #0050 ADD2 .Screen/x DEO2
#61 .Screen/color DEO
#11 .Screen/sprite DEO
.center/x LDZ2 #0048 ADD2 .Screen/x DEO2
.center/y LDZ2 #0038 ADD2 .Screen/y DEO2
#a1 .Screen/color DEO
#21 .Screen/sprite DEO
.center/x LDZ2 #0050 ADD2 .Screen/x DEO2
#f1 .Screen/color DEO
#31 .Screen/sprite DEO
RTN
@ -99,4 +99,4 @@ RTN
007c 8282 7c82 827c 007c 8282 7e02 827c
007c 8202 7e82 827e 00fc 8282 fc82 82fc
007c 8280 8080 827c 00fc 8282 8282 82fc
007c 8280 f080 827c 007c 8280 f080 8080
007c 8280 f080 827c 007c 8280 f080 8080

14
src/devices/ppu.c
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@ -53,12 +53,14 @@ puticn(Ppu *p, Layer *layer, Uint16 x, Uint16 y, Uint8 *sprite, Uint8 color, Uin
for(v = 0; v < 8; v++)
for(h = 0; h < 8; h++) {
Uint8 ch1 = ((sprite[v] >> (7 - h)) & 0x1);
if(ch1 == 1 || (color != 0x05 && color != 0x0a && color != 0x0f))
putpixel(p,
layer,
x + (flipx ? 7 - h : h),
y + (flipy ? 7 - v : v),
ch1 ? color % 4 : color / 4);
if(!(ch1 || color % 0x5))
continue;
if(x < p->width && y < p->height) {
Uint16 px = x + (flipx ? 7 - h : h);
Uint16 py = y + (flipy ? 7 - v : v);
Uint8 pc = ch1 ? (color & 0x3) : (color >> 0x2);
layer->pixels[py * p->width + px] = layer->colors[pc];
}
}
}

10
src/uxnemu.c
View File

@ -306,6 +306,16 @@ screen_talk(Device *d, Uint8 b0, Uint8 w)
putchr(&ppu, layer, x, y, addr, d->dat[0xe] & 0xf, mode & 0x2, mode & 0x4);
}
reqdraw = 1;
} else if(w && b0 == 0xf) {
Uint16 x = mempeek16(d->dat, 0x8);
Uint16 y = mempeek16(d->dat, 0xa);
Layer *layer = d->dat[0xf] >> 0x6 & 0x1 ? &ppu.fg : &ppu.bg;
Uint8 *addr = &d->mem[mempeek16(d->dat, 0xc)];
if(d->dat[0xf] >> 0x7 & 0x1)
putchr(&ppu, layer, x, y, addr, d->dat[0xf] & 0xf, d->dat[0xf] >> 0x4 & 0x1, d->dat[0xf] >> 0x5 & 0x1);
else
puticn(&ppu, layer, x, y, addr, d->dat[0xf] & 0xf, d->dat[0xf] >> 0x4 & 0x1, d->dat[0xf] >> 0x5 & 0x1);
reqdraw = 1;
}
}