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Diffstat (limited to 'src/mess/machine/sns_sdd1.c')
-rw-r--r--src/mess/machine/sns_sdd1.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/src/mess/machine/sns_sdd1.c b/src/mess/machine/sns_sdd1.c
index 3bdaaf81ae9..3025086324d 100644
--- a/src/mess/machine/sns_sdd1.c
+++ b/src/mess/machine/sns_sdd1.c
@@ -581,8 +581,6 @@ READ8_MEMBER(sns_rom_sdd1_device::read_l)
{
if (offset < 0x400000)
return m_rom[rom_bank_map[offset / 0x10000] * 0x8000 + (offset & 0x7fff)];
- else if (offset >= 0x700000 && (offset & 0xffff) < 0x8000 && m_nvram_size > 0)
- return m_nvram[offset & 0x1fff];
else
return m_rom[rom_bank_map[(offset - 0x400000) / 0x8000] * 0x8000 + (offset & 0x7fff)];
}
@@ -595,8 +593,14 @@ READ8_MEMBER(sns_rom_sdd1_device::read_h)
return read_l(space, offset);
}
-WRITE8_MEMBER(sns_rom_sdd1_device::write_l)
+
+READ8_MEMBER( sns_rom_sdd1_device::read_ram )
{
- if (offset >= 0x700000 && (offset & 0xffff) < 0x8000 && m_nvram_size > 0) // SRAM
- m_nvram[offset & 0x1fff] = data;
+ return m_nvram[offset & 0x1fff];
}
+
+WRITE8_MEMBER( sns_rom_sdd1_device::write_ram )
+{
+ m_nvram[offset & 0x1fff] = data;
+}
+