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Diffstat (limited to 'src/mess/video/mz80.c')
-rw-r--r--src/mess/video/mz80.c35
1 files changed, 16 insertions, 19 deletions
diff --git a/src/mess/video/mz80.c b/src/mess/video/mz80.c
index 0f849b592e7..bcf756a3971 100644
--- a/src/mess/video/mz80.c
+++ b/src/mess/video/mz80.c
@@ -36,11 +36,10 @@ void mz80_state::video_start()
m_p_chargen = memregion("chargen")->base();
}
-SCREEN_UPDATE_IND16( mz80k )
+UINT32 mz80_state::screen_update_mz80k(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
- mz80_state *state = screen.machine().driver_data<mz80_state>();
- state->m_mz80k_vertical ^= 1;
- state->m_mz80k_cursor_cnt++;
+ m_mz80k_vertical ^= 1;
+ m_mz80k_cursor_cnt++;
UINT8 y,ra,chr,gfx;
UINT16 x,sy=0,ma=0;
@@ -52,8 +51,8 @@ SCREEN_UPDATE_IND16( mz80k )
for (x = ma; x < ma + 40; x++)
{
- chr = state->m_p_videoram[x];
- gfx = state->m_p_chargen[(chr<<3) | ra];
+ chr = m_p_videoram[x];
+ gfx = m_p_chargen[(chr<<3) | ra];
/* Display a scanline of a character */
*p++ = BIT(gfx, 7);
@@ -72,11 +71,10 @@ SCREEN_UPDATE_IND16( mz80k )
}
// same as above except bits are in reverse order
-SCREEN_UPDATE_IND16( mz80kj )
+UINT32 mz80_state::screen_update_mz80kj(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
- mz80_state *state = screen.machine().driver_data<mz80_state>();
- state->m_mz80k_vertical ^= 1;
- state->m_mz80k_cursor_cnt++;
+ m_mz80k_vertical ^= 1;
+ m_mz80k_cursor_cnt++;
UINT8 y,ra,chr,gfx;
UINT16 x,sy=0,ma=0;
@@ -88,8 +86,8 @@ SCREEN_UPDATE_IND16( mz80kj )
for (x = ma; x < ma + 40; x++)
{
- chr = state->m_p_videoram[x];
- gfx = state->m_p_chargen[(chr<<3) | ra];
+ chr = m_p_videoram[x];
+ gfx = m_p_chargen[(chr<<3) | ra];
/* Display a scanline of a character */
*p++ = BIT(gfx, 0);
@@ -108,13 +106,12 @@ SCREEN_UPDATE_IND16( mz80kj )
}
// has twice as much video ram and uses a scroll register
-SCREEN_UPDATE_IND16( mz80a )
+UINT32 mz80_state::screen_update_mz80a(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
- mz80_state *state = screen.machine().driver_data<mz80_state>();
- state->m_mz80k_vertical ^= 1;
- state->m_mz80k_cursor_cnt++;
+ m_mz80k_vertical ^= 1;
+ m_mz80k_cursor_cnt++;
UINT8 y,ra,chr,gfx;
- UINT16 x,sy=0, ma=state->m_p_ram[0x17d] | (state->m_p_ram[0x17e] << 8);
+ UINT16 x,sy=0, ma=m_p_ram[0x17d] | (m_p_ram[0x17e] << 8);
for(y = 0; y < 25; y++ )
{
@@ -124,8 +121,8 @@ SCREEN_UPDATE_IND16( mz80a )
for (x = ma; x < ma + 40; x++)
{
- chr = state->m_p_videoram[x&0x7ff];
- gfx = state->m_p_chargen[(chr<<3) | ra];
+ chr = m_p_videoram[x&0x7ff];
+ gfx = m_p_chargen[(chr<<3) | ra];
/* Display a scanline of a character */
*p++ = BIT(gfx, 7);