# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1498536797 25200
# Node ID 975b5b7eaa77b47d4eb5cbdaac58d3ab1b32343d
# Parent  92e7dafcc0dc06d849809c22b9559b365dc54f74
Fix DMA from byte-wide SRAM

diff -r 92e7dafcc0dc -r 975b5b7eaa77 genesis.c
--- a/genesis.c	Mon Jun 26 21:12:46 2017 -0700
+++ b/genesis.c	Mon Jun 26 21:13:17 2017 -0700
@@ -35,13 +35,13 @@
 uint16_t read_dma_value(uint32_t address)
 {
 	genesis_context *genesis = (genesis_context *)current_system;
+	//TODO: Figure out what happens when you try to DMA from weird adresses like IO or banked Z80 area
+	if ((address >= 0xA00000 && address < 0xB00000) || (address >= 0xC00000 && address <= 0xE00000)) {
+		return 0;
+	}
+	
 	//addresses here are word addresses (i.e. bit 0 corresponds to A1), so no need to do multiply by 2
-	uint16_t *ptr = get_native_pointer(address*2, (void **)genesis->m68k->mem_pointers, &genesis->m68k->options->gen);
-	if (ptr) {
-		return *ptr;
-	}
-	//TODO: Figure out what happens when you try to DMA from weird adresses like IO or banked Z80 area
-	return 0;
+	return read_word(address * 2, (void **)genesis->m68k->mem_pointers, &genesis->m68k->options->gen, genesis->m68k);
 }
 
 static uint16_t get_open_bus_value(system_header *system)