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Diffstat (limited to 'src/mame/drivers/mario.c')
-rw-r--r--src/mame/drivers/mario.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/src/mame/drivers/mario.c b/src/mame/drivers/mario.c
index 8a238d61fe1..6822c161b52 100644
--- a/src/mame/drivers/mario.c
+++ b/src/mame/drivers/mario.c
@@ -120,6 +120,12 @@ static WRITE8_DEVICE_HANDLER( mario_z80dma_rdy_w )
z80dma_rdy_w(device, data & 0x01);
}
+static WRITE8_HANDLER( nmi_mask_w )
+{
+ mario_state *state = space->machine().driver_data<mario_state>();
+
+ state->m_nmi_mask = data & 1;
+}
/*************************************
*
@@ -138,7 +144,7 @@ static ADDRESS_MAP_START( mario_map, AS_PROGRAM, 8 )
AM_RANGE(0x7e80, 0x7e80) AM_WRITE(mario_gfxbank_w)
AM_RANGE(0x7e82, 0x7e82) AM_WRITE(mario_flip_w)
AM_RANGE(0x7e83, 0x7e83) AM_WRITE(mario_palettebank_w)
- AM_RANGE(0x7e84, 0x7e84) AM_WRITE(interrupt_enable_w)
+ AM_RANGE(0x7e84, 0x7e84) AM_WRITE(nmi_mask_w)
AM_RANGE(0x7e85, 0x7e85) AM_DEVWRITE("z80dma", mario_z80dma_rdy_w) /* ==> DMA Chip */
AM_RANGE(0x7f00, 0x7f07) AM_WRITE(mario_sh3_w) /* Sound port */
AM_RANGE(0x7f80, 0x7f80) AM_READ_PORT("DSW") /* DSW */
@@ -158,7 +164,7 @@ static ADDRESS_MAP_START( masao_map, AS_PROGRAM, 8 )
AM_RANGE(0x7e80, 0x7e80) AM_WRITE(mario_gfxbank_w)
AM_RANGE(0x7e82, 0x7e82) AM_WRITE(mario_flip_w)
AM_RANGE(0x7e83, 0x7e83) AM_WRITE(mario_palettebank_w)
- AM_RANGE(0x7e84, 0x7e84) AM_WRITE(interrupt_enable_w)
+ AM_RANGE(0x7e84, 0x7e84) AM_WRITE(nmi_mask_w)
AM_RANGE(0x7e85, 0x7e85) AM_DEVWRITE("z80dma", mario_z80dma_rdy_w) /* ==> DMA Chip */
AM_RANGE(0x7f00, 0x7f00) AM_WRITE(masao_sh_irqtrigger_w)
AM_RANGE(0x7f80, 0x7f80) AM_READ_PORT("DSW") /* DSW */
@@ -317,13 +323,21 @@ GFXDECODE_END
*
*************************************/
+static INTERRUPT_GEN( vblank_irq )
+{
+ mario_state *state = device->machine().driver_data<mario_state>();
+
+ if(state->m_nmi_mask)
+ device_set_input_line(device, INPUT_LINE_NMI, PULSE_LINE);
+}
+
static MACHINE_CONFIG_START( mario_base, mario_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", Z80, Z80_CLOCK) /* verified on pcb */
MCFG_CPU_PROGRAM_MAP(mario_map)
MCFG_CPU_IO_MAP(mario_io_map)
- MCFG_CPU_VBLANK_INT("screen", nmi_line_pulse)
+ MCFG_CPU_VBLANK_INT("screen", vblank_irq)
/* devices */
MCFG_Z80DMA_ADD("z80dma", Z80_CLOCK, mario_dma)