// retroDE_ps2 — gs_lpddr_map_pkg  (Ch357 — future-compatible private-LPDDR region map)
//
// Codex-locked LPDDR byte-offset map for the scheduler + persistent-Z path. These are OFFSETS within our PRIVATE reserved
// LPDDR region (fb_base is added at the board boundary). The layout fits the current 384x381 rung AND future 640x480 Z
// WITHOUT relocation, and keeps color / Z / texture ranges provably DISJOINT:
//
//   color FB : 0x000000 ..            (384x381x4 = 0x08EE00 ; 640x480x4 = 0x12C000  -> both < 0x140000)
//   Z buffer : 0x140000 ..            (384x381x2 = 0x047700 -> ..0x187700 ; 640x480x2 = 0x096000 -> ..0x1D6000)
//   texture  : 0x200000 ..            (single-region tex cache; 0x1D6000 < 0x200000, so Z never reaches it)
//
// NOTE (Codex): the Z buffer is INTERNAL — it is never exposed as GS local memory, so it uses a simple LINEAR packed-16b
// layout. Only the PSMZ16S VALUE/TEST semantics (clamp16 source, GEQUAL, ZMSK) are authentic; its physical storage swizzle
// is deliberately NOT PSMZ16S-swizzled (we own the buffer). See gs_lpddr_z_rmw.sv.
package gs_lpddr_map_pkg;
    localparam logic [31:0] LPDDR_COLOR_BASE = 32'h0000_0000;
    localparam logic [31:0] LPDDR_Z_BASE     = 32'h0014_0000;
    localparam logic [31:0] LPDDR_TEX_BASE   = 32'h0020_0000;
endpackage : gs_lpddr_map_pkg
