From 15bcbb7c333ee184d87427e9fe734fd8ee6d5bd2 Mon Sep 17 00:00:00 2001
From: Scott Shawcroft <scott.shawcroft@gmail.com>
Date: Sun, 2 Jul 2017 15:39:14 -0700
Subject: Correct cram mapping so glbcheck actually passes.

---
 icepack/icepack.cc | 74 ++++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 63 insertions(+), 11 deletions(-)

(limited to 'icepack')

diff --git a/icepack/icepack.cc b/icepack/icepack.cc
index 327a092..ff12267 100644
--- a/icepack/icepack.cc
+++ b/icepack/icepack.cc
@@ -848,8 +848,48 @@ void FpgaConfig::write_cram_pbm(std::ostream &ofs, int bank_num) const
 	debug("## %s\n", __PRETTY_FUNCTION__);
 	info("Writing cram pbm file..\n");
 
-	ofs << "P1\n";
+	ofs << "P3\n";
 	ofs << stringf("%d %d\n", 2*this->cram_width, 2*this->cram_height);
+	ofs << "255\n";
+        uint32_t tile_type[4][this->cram_width][this->cram_height];
+	for (int y = 0; y <= this->chip_height()+1; y++)
+	for (int x = 0; x <= this->chip_width()+1; x++)
+	{
+		CramIndexConverter cic(this, x, y);
+                
+                uint32_t color = 0x000000;
+                if (cic.tile_type == "io") {
+                  color = 0x00aa00;
+                } else if (cic.tile_type == "logic") {
+                  if ((x + y) %2 == 0) {
+                    color = 0x0000ff;
+                  } else {
+                    color = 0x0000aa;
+                  }
+                  if (x == 12 && y == 25) {
+                    color = 0xaa00aa;
+                  }
+                  if (x == 12 && y == 24) {
+                    color = 0x888888;
+                  }
+                } else if (cic.tile_type == "ramt") {
+                  color = 0xff0000;
+                } else if (cic.tile_type == "ramb") {
+                  color = 0xaa0000;
+                } else if (cic.tile_type == "unsupported") {
+                  color = 0x333333;
+                } else {
+                info("%s\n", cic.tile_type.c_str());
+                }
+
+		for (int bit_y = 0; bit_y < 16; bit_y++)
+		for (int bit_x = 0; bit_x < cic.tile_width; bit_x++) {
+			int cram_bank, cram_x, cram_y;
+			cic.get_cram_index(bit_x, bit_y, cram_bank, cram_x, cram_y);
+                        
+			tile_type[cram_bank][cram_x][cram_y] = color;
+		}
+	}
 	for (int y = 2*this->cram_height-1; y >= 0; y--) {
 		for (int x = 0; x < 2*this->cram_width; x++) {
 			int bank = 0, bank_x = x, bank_y = y;
@@ -858,9 +898,16 @@ void FpgaConfig::write_cram_pbm(std::ostream &ofs, int bank_num) const
 			if (bank_y >= this->cram_height)
 				bank |= 2, bank_y = 2*this->cram_height - bank_y - 1;
 			if (bank_num >= 0 && bank != bank_num)
-				ofs << " 0";
-			else
-				ofs << (this->cram[bank][bank_x][bank_y] ? " 1" : " 0");
+				ofs << "   255 255 255";
+			else if (this->cram[bank][bank_x][bank_y]) {
+                          ofs << "   255 255 255";
+                        } else {
+                          uint32_t color = tile_type[bank][bank_x][bank_y];
+                          uint8_t r = color >> 16;
+                          uint8_t g = color >> 8;
+                          uint8_t b = color & 0xff;
+				ofs << stringf(" %d %d %d", r, g, b);
+                        }
 		}
 		ofs << '\n';
 	}
@@ -880,6 +927,7 @@ void FpgaConfig::write_bram_pbm(std::ostream &ofs, int bank_num) const
 				bank |= 1, bank_x = 2*this->bram_width - bank_x - 1;
 			if (bank_y >= this->bram_height)
 				bank |= 2, bank_y = 2*this->bram_height - bank_y - 1;
+                        info("%d %d %d\n", bank, bank_x, bank_y);
 			if (bank_num >= 0 && bank != bank_num)
 				ofs << " 0";
 			else
@@ -932,7 +980,7 @@ string FpgaConfig::tile_type(int x, int y) const
 	}
 
 	if (this->device == "5k") {
-		if (x == 6 || x == 18) return y % 2 == 1 ? "ramb" : "ramt";
+		if (x == 6 || x == 19) return y % 2 == 1 ? "ramb" : "ramt";
 		return "logic";
 	}
 
@@ -1015,7 +1063,7 @@ CramIndexConverter::CramIndexConverter(const FpgaConfig *fpga, int tile_x, int t
 	this->left_right_io = this->tile_x == 0 || this->tile_x == chip_width+1;
 	this->right_half = this->tile_x > chip_width / 2;
 	if (this->fpga->device == "5k") {
-		this->top_half = this->tile_y > chip_height / 3;
+		this->top_half = this->tile_y > (chip_height * 2 / 3);
 	} else {
 		this->top_half = this->tile_y > chip_height / 2;
 	}
@@ -1089,11 +1137,11 @@ BramIndexConverter::BramIndexConverter(const FpgaConfig *fpga, int tile_x, int t
 
 	bool right_half = this->tile_x > chip_width / 2;
 	bool top_half = this->tile_y > chip_height / 2;
-	// The UltraPlus 5k line is special because the bottom quarter of the chip is
-	// used for SRAM instead of logic. Therefore the bitstream for the bottom two
-	// quadrants are half the height of the top.
+	// The UltraPlus 5k line is special because the top quarter of the chip is
+	// used for SRAM instead of logic. Therefore the bitstream for the top two
+	// quadrants are half the height of the bottom.
 	if (this->fpga->device == "5k") {
-		top_half = this->tile_y > chip_height / 3;
+		top_half = this->tile_y > (chip_height / 3);
 	}
 
 	this->bank_num = 0;
@@ -1101,7 +1149,7 @@ BramIndexConverter::BramIndexConverter(const FpgaConfig *fpga, int tile_x, int t
 	if (!top_half) {
 		this->bank_num |= 1;
 	} else if (this->fpga->device == "5k") {
-		y_offset = this->tile_y - chip_height / 3;
+		y_offset = this->tile_y - (chip_height / 3);
 	} else {
 		y_offset = this->tile_y - chip_height / 2;
 	}
@@ -1243,9 +1291,13 @@ int main(int argc, char **argv)
 		fpga_config.cram_clear();
 		fpga_config.cram_checkerboard(checkerboard_m);
 	}
+	
+	info("netpbm\n");
 
 	if (netpbm_fill_tiles)
 		fpga_config.cram_fill_tiles();
+        
+        info("fill done\n");
 
 	if (netpbm_mode) {
 		if (netpbm_bram)
-- 
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