# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1483262606 28800
# Node ID 28363cb568c4af421bcf22869ca580c029078dea
# Parent  fd3b8ac57aca6e4fcf8d88d1f22c6c62c31a90aa
Make Mode 4 sprite rendering a little less broken

diff -r fd3b8ac57aca -r 28363cb568c4 vdp.c
--- a/vdp.c	Sun Jan 01 01:16:43 2017 -0800
+++ b/vdp.c	Sun Jan 01 01:23:26 2017 -0800
@@ -589,9 +589,12 @@
 			uint32_t address = (context->regs[REG_SAT] << 7 & 0x3F00) + 0x80 + context->sprite_info_list[context->cur_slot].index * 2;
 			address = mode4_address_map[address];
 			--context->sprite_draws;
-			uint32_t tile_address = context->vdpmem[address + 1] * 32 + (context->regs[REG_STILE_BASE] << 11 & 0x2000);
+			uint32_t tile_address = context->vdpmem[address] * 32 + (context->regs[REG_STILE_BASE] << 11 & 0x2000);
+			if (context->regs[REG_MODE_2] & BIT_SPRITE_SZ) {
+				tile_address &= ~32;
+			}
 			tile_address += (line - context->sprite_info_list[context->cur_slot].y)* 4;
-			context->sprite_draw_list[context->sprite_draws].x_pos = context->vdpmem[address];
+			context->sprite_draw_list[context->sprite_draws].x_pos = context->vdpmem[address + 1];
 			context->sprite_draw_list[context->sprite_draws].address = tile_address;
 			context->cur_slot--;
 		} else {