yosys/techlibs/analogdevices/lutrams.txt

# LUT RAMs for Virtex 5, Virtex 6, Spartan 6, Series 7.
# The corresponding mapping file is lutrams_xc5v_map.v

# Single-port RAMs.

ram distributed $__ANALOGDEVICES_LUTRAM_SP_ {
	cost 8;
	widthscale;
	option "ABITS" 5 {
		abits 5;
		widths 8 global;
	}
	option "ABITS" 6 {
		abits 6;
		widths 4 global;
	}
	option "ABITS" 7 {
		abits 7;
		widths 2 global;
	}
	option "ABITS" 8 {
		abits 8;
		widths 1 global;
	}
	init no_undef;
	prune_rom;
	port arsw "RW" {
		clock posedge;
	}
}

# Dual-port RAMs.

ram distributed $__ANALOGDEVICES_LUTRAM_DP_ {
	cost 8;
	widthscale;
	option "ABITS" 5 {
		abits 5;
		widths 4 global;
	}
	option "ABITS" 6 {
		abits 6;
		widths 2 global;
	}
	option "ABITS" 7 {
		abits 7;
		widths 1 global;
	}
	init no_undef;
	prune_rom;
	port arsw "RW" {
		clock posedge;
	}
	port ar "R" {
	}
}

# Simple dual port RAMs.

ram distributed $__ANALOGDEVICES_LUTRAM_SDP_ {
	cost 8;
	widthscale 7;
	option "ABITS" 5 {
		abits 5;
		widths 6 global;
	}
	option "ABITS" 6 {
		abits 6;
		widths 3 global;
	}
	init no_undef;
	prune_rom;
	port sw "W" {
		clock posedge;
	}
	port ar "R" {
	}
}