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Reduce the number of RGB registers
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@alanjian85
alanjian85 committed Nov 12, 2023
1 parent aad0a22 commit b3cface
Showing 1 changed file with 20 additions and 92 deletions.
112 changes: 20 additions & 92 deletions src/main/scala/graphics/Graphics.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -146,9 +146,9 @@ class Graphics extends Module {
diffInfos(i).dremgj := (if (a == 0) 0 else if (a > 0) dividendgj % a else -dividendgj % a).S
diffInfos(i).drembj := (if (a == 0) 0 else if (a > 0) dividendbj % a else -dividendbj % a).S

val dividendri = -dx1 * 255
val dividendgi = -dx2 * 255
val dividendbi = -dx0 * 255
val dividendri = (-dx1 + dy1 * (Tile.size - 1)) * 255
val dividendgi = (-dx2 + dy2 * (Tile.size - 1)) * 255
val dividendbi = (-dx0 + dy0 * (Tile.size - 1)) * 255

diffInfos(i).dquori := (if (a == 0) 0 else dividendri / a).S
diffInfos(i).dquogi := (if (a == 0) 0 else dividendgi / a).S
Expand All @@ -158,9 +158,9 @@ class Graphics extends Module {
diffInfos(i).dremgi := (if (a == 0) 0 else if (a > 0) dividendgi % a else -dividendgi % a).S
diffInfos(i).drembi := (if (a == 0) 0 else if (a > 0) dividendbi % a else -dividendbi % a).S

val dividendrc = -dy1 * Tile.size * 255
val dividendgc = -dy2 * Tile.size * 255
val dividendbc = -dy0 * Tile.size * 255
val dividendrc = (-dy1 + dx1) * Tile.size * 255
val dividendgc = (-dy2 + dx2) * Tile.size * 255
val dividendbc = (-dy0 + dx0) * Tile.size * 255

diffInfos(i).dquorc := (if (a == 0) 0 else dividendrc / a).S
diffInfos(i).dquogc := (if (a == 0) 0 else dividendgc / a).S
Expand All @@ -170,9 +170,9 @@ class Graphics extends Module {
diffInfos(i).dremgc := (if (a == 0) 0 else if (a > 0) dividendgc % a else -dividendgc % a).S
diffInfos(i).drembc := (if (a == 0) 0 else if (a > 0) dividendbc % a else -dividendbc % a).S

val dividendrr = -dx1 * Tile.size * 255
val dividendgr = -dx2 * Tile.size * 255
val dividendbr = -dx0 * Tile.size * 255
val dividendrr = dy1 * (Tile.nrCols - 1) * Tile.size * 255
val dividendgr = dy2 * (Tile.nrCols - 1) * Tile.size * 255
val dividendbr = dy0 * (Tile.nrCols - 1) * Tile.size * 255

diffInfos(i).dquorr := (if (a == 0) 0 else dividendrr / a).S
diffInfos(i).dquogr := (if (a == 0) 0 else dividendgr / a).S
Expand Down Expand Up @@ -212,28 +212,10 @@ class Graphics extends Module {
val r = RegInit(diffInfos(0).r)
val g = RegInit(diffInfos(0).g)
val b = RegInit(diffInfos(0).b)
val ir = RegInit(diffInfos(0).r)
val ig = RegInit(diffInfos(0).g)
val ib = RegInit(diffInfos(0).b)
val cr = RegInit(diffInfos(0).r)
val cg = RegInit(diffInfos(0).g)
val cb = RegInit(diffInfos(0).b)
val rr = RegInit(diffInfos(0).r)
val rg = RegInit(diffInfos(0).g)
val rb = RegInit(diffInfos(0).b)

val er = RegInit(diffInfos(0).er)
val eg = RegInit(diffInfos(0).eg)
val eb = RegInit(diffInfos(0).eb)
val ier = RegInit(diffInfos(0).er)
val ieg = RegInit(diffInfos(0).eg)
val ieb = RegInit(diffInfos(0).eb)
val cer = RegInit(diffInfos(0).er)
val ceg = RegInit(diffInfos(0).eg)
val ceb = RegInit(diffInfos(0).eb)
val rer = RegInit(diffInfos(0).er)
val reg = RegInit(diffInfos(0).eg)
val reb = RegInit(diffInfos(0).eb)

val col = RegInit(0.U(log2Up(Tile.nrCols).W))
val row = RegInit(0.U(unsignedBitLength(Tile.nrRows).W))
Expand All @@ -256,28 +238,10 @@ class Graphics extends Module {
r := diffInfos(angle).r
g := diffInfos(angle).g
b := diffInfos(angle).b
ir := diffInfos(angle).r
ig := diffInfos(angle).g
ib := diffInfos(angle).b
cr := diffInfos(angle).r
cg := diffInfos(angle).g
cb := diffInfos(angle).b
rr := diffInfos(angle).r
rg := diffInfos(angle).g
rb := diffInfos(angle).b

er := diffInfos(angle).r
eg := diffInfos(angle).g
eb := diffInfos(angle).b
ier := diffInfos(angle).r
ieg := diffInfos(angle).g
ieb := diffInfos(angle).b
cer := diffInfos(angle).r
ceg := diffInfos(angle).g
ceb := diffInfos(angle).b
rer := diffInfos(angle).r
reg := diffInfos(angle).g
reb := diffInfos(angle).b

row := 0.U
}
Expand All @@ -303,29 +267,17 @@ class Graphics extends Module {
ie2 := ne2
ce2 := ne2

val (rquo, rrem) = incrDiv(diffInfo.dquorc, diffInfo.dremrc, diffInfo.a, cr, cer)
val (rquo, rrem) = incrDiv(diffInfo.dquorc, diffInfo.dremrc, diffInfo.a, r, er)
r := rquo
er := rrem
ir := rquo
ier := rrem
cr := rquo
ceg := rrem

val (gquo, grem) = incrDiv(diffInfo.dquogc, diffInfo.dremgc, diffInfo.a, cg, ceg)
val (gquo, grem) = incrDiv(diffInfo.dquogc, diffInfo.dremgc, diffInfo.a, g, eg)
g := gquo
eg := grem
ig := gquo
ieg := grem
cg := gquo
ceg := grem

val (bquo, brem) = incrDiv(diffInfo.dquobc, diffInfo.drembc, diffInfo.a, cb, ceb)
val (bquo, brem) = incrDiv(diffInfo.dquobc, diffInfo.drembc, diffInfo.a, b, eb)
b := bquo
eb := brem
ib := bquo
ieb := brem
cb := bquo
ceb := brem

col := col + 1.U

Expand All @@ -348,35 +300,17 @@ class Graphics extends Module {
ce2 := ne2
re2 := ne2

val (rquo, rrem) = incrDiv(diffInfo.dquorr, diffInfo.dremrr, diffInfo.a, rr, rer)
val (rquo, rrem) = incrDiv(diffInfo.dquorr, diffInfo.dremrr, diffInfo.a, r, er)
r := rquo
er := rrem
ir := rquo
ier := rrem
cr := rquo
cer := rrem
rr := rquo
rer := rrem

val (gquo, grem) = incrDiv(diffInfo.dquogr, diffInfo.dremgr, diffInfo.a, rg, reg)

val (gquo, grem) = incrDiv(diffInfo.dquogr, diffInfo.dremgr, diffInfo.a, g, eg)
g := gquo
eg := grem
ig := gquo
ieg := grem
cg := gquo
ceg := grem
rg := gquo
reg := grem

val (bquo, brem) = incrDiv(diffInfo.dquobr, diffInfo.drembr, diffInfo.a, rb, reb)

val (bquo, brem) = incrDiv(diffInfo.dquobr, diffInfo.drembr, diffInfo.a, b, eb)
b := bquo
eb := brem
ib := bquo
ieb := brem
cb := bquo
ceb := brem
rb := bquo
reb := brem

col := 0.U
row := row + 1.U
Expand Down Expand Up @@ -423,23 +357,17 @@ class Graphics extends Module {
e2 := ne2
ie2 := ne2

val (rquo, rrem) = incrDiv(diffInfo.dquori, diffInfo.dremri, diffInfo.a, ir, ier)
val (rquo, rrem) = incrDiv(diffInfo.dquori, diffInfo.dremri, diffInfo.a, r, er)
r := rquo
er := rrem
ir := rquo
ier := rrem

val (gquo, grem) = incrDiv(diffInfo.dquogi, diffInfo.dremgi, diffInfo.a, ig, ieg)
val (gquo, grem) = incrDiv(diffInfo.dquogi, diffInfo.dremgi, diffInfo.a, g, eg)
g := gquo
eg := grem
ig := gquo
ieg := grem

val (bquo, brem) = incrDiv(diffInfo.dquobi, diffInfo.drembi, diffInfo.a, ib, ieb)
val (bquo, brem) = incrDiv(diffInfo.dquobi, diffInfo.drembi, diffInfo.a, b, eb)
b := bquo
eb := brem
ib := bquo
ieb := brem

when (i === (Tile.size - 1).U) {
i := 0.U
Expand Down

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