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tms9927: Adjust vertical positioning of cursor by upscroll value (nw)

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tv912: Add scrolling (nw)
This commit is contained in:
AJR 2018-01-28 10:13:23 -05:00
parent c8c0ac7623
commit b313a4e7bf
5 changed files with 10 additions and 20 deletions
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16
src/devices/video/tms9927.cpp
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@ -293,22 +293,10 @@ READ_LINE_MEMBER(tms9927_device::bl_r)
}
bool tms9927_device::screen_reset()
{
return m_reset;
}
int tms9927_device::upscroll_offset()
{
return m_start_datarow;
}
bool tms9927_device::cursor_bounds(rectangle &bounds)
bool tms9927_device::cursor_bounds(rectangle &bounds) const
{
int cursorx = CURSOR_CHAR_ADDRESS;
int cursory = CURSOR_ROW_ADDRESS;
int cursory = (CURSOR_ROW_ADDRESS + DATA_ROWS_PER_FRAME - m_start_datarow) % DATA_ROWS_PER_FRAME;
bounds.min_x = cursorx * m_hpixels_per_column;
bounds.max_x = bounds.min_x + m_hpixels_per_column - 1;

6
src/devices/video/tms9927.h
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@ -48,9 +48,9 @@ public:
DECLARE_READ_LINE_MEMBER(bl_r);
bool screen_reset();
int upscroll_offset();
bool cursor_bounds(rectangle &bounds);
bool screen_reset() const { return m_reset; }
int upscroll_offset() const { return m_start_datarow; }
bool cursor_bounds(rectangle &bounds) const;
protected:
tms9927_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);

2
src/mame/drivers/alphatpx.cpp
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@ -432,7 +432,7 @@ uint32_t alphatpx_state::screen_update(screen_device &screen, bitmap_rgb32 &bitm
{
uint8_t code = m_vram[(vramy * 128) + x]; // helwie44 must be 128d is 080h physical display-ram step line
// draw 12 lines of the character
bool cursoren = cursor.contains(x * 8, vramy * 12);
bool cursoren = cursor.contains(x * 8, y * 12);
for (int line = 0; line < 12; line++)
{
uint8_t data = m_gfx[((code & 0x7f) * 16) + line];

4
src/mame/drivers/tv912.cpp
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@ -294,9 +294,11 @@ u32 tv912_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, cons
rectangle curs;
m_crtc->cursor_bounds(curs);
int scroll = m_crtc->upscroll_offset();
for (int y = cliprect.top(); y <= cliprect.bottom(); y++)
{
int row = y / 10;
int row = ((y / 10) + scroll) % 24;
int ra = y % 10;
int x = 0;
u8 *charbase = &m_p_chargen[(ra & 7) | BIT(videoctrl, 1) << 10];

2
src/mame/video/intv.cpp
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@ -37,7 +37,7 @@ uint32_t intv_state::screen_update_intvkbd(screen_device &screen, bitmap_ind16 &
{
for(int x=0;x<40;x++)
{
if ((cursor_row == current_row) && (cursor_col == x+1)) {
if ((cursor_row == y) && (cursor_col == x+1)) {
/* draw the cursor as a solid white block */
m_gfxdecode->gfx(0)->transpen(bitmap,cliprect,
191, /* a block */