diff options
| author | 2021-05-28 21:49:29 -0500 | |
|---|---|---|
| committer | 2021-05-28 21:49:29 -0500 | |
| commit | 29001b426791912947f62a41129c97c5111adb53 (patch) | |
| tree | e2ba2f4a931ba79d9c97d7f442a2296c83bf023f | |
| parent | 050db64a961203600c71a9671bbebb2a5a0b1999 (diff) | |
hd63450: add linked array chaining
| -rw-r--r-- | src/devices/machine/hd63450.cpp | 13 | ||||
| -rw-r--r-- | src/mame/video/x68k_crtc.cpp | 2 |
2 files changed, 13 insertions, 2 deletions
diff --git a/src/devices/machine/hd63450.cpp b/src/devices/machine/hd63450.cpp index 43732eee666..5787dde4b3b 100644 --- a/src/devices/machine/hd63450.cpp +++ b/src/devices/machine/hd63450.cpp @@ -62,6 +62,7 @@ void hd63450_device::device_start() save_item(STRUCT_MEMBER(m_reg, mar)); save_item(STRUCT_MEMBER(m_reg, dar)); save_item(STRUCT_MEMBER(m_reg, btc)); + save_item(STRUCT_MEMBER(m_reg, bar)); save_item(STRUCT_MEMBER(m_reg, niv)); save_item(STRUCT_MEMBER(m_reg, eiv)); save_item(STRUCT_MEMBER(m_reg, mfc)); @@ -452,7 +453,7 @@ void hd63450_device::single_transfer(int x) { // End of transfer LOG("DMA#%i: End of transfer\n",x); - if ((m_reg[x].ocr & 0x0c) != 0 && m_reg[x].btc > 0) + if ((m_reg[x].ocr & 0x0c) == 0x08 && m_reg[x].btc > 0) { m_reg[x].btc--; m_reg[x].bar+=6; @@ -461,6 +462,16 @@ void hd63450_device::single_transfer(int x) m_reg[x].mtc = space.read_word(m_reg[x].bar+4); return; } + else if ((m_reg[x].ocr & 0x0c) == 0x0c && m_reg[x].bar) + { + u32 bar = m_reg[x].bar; + m_reg[x].mar = space.read_word(bar) << 16; + m_reg[x].mar |= space.read_word(bar+2); + m_reg[x].mtc = space.read_word(bar+4); + m_reg[x].bar = space.read_word(bar+6) << 16; + m_reg[x].bar |= space.read_word(bar+10); + return; + } else if (m_reg[x].ccr & 0x40) { m_reg[x].mar = m_reg[x].bar; diff --git a/src/mame/video/x68k_crtc.cpp b/src/mame/video/x68k_crtc.cpp index 3792ae68b4a..5fa05e74499 100644 --- a/src/mame/video/x68k_crtc.cpp +++ b/src/mame/video/x68k_crtc.cpp @@ -172,7 +172,7 @@ void x68k_crtc_device::refresh_mode() rectangle visiblescr(m_hbegin, m_hend, m_vbegin, m_vend); if ((visiblescr.max_y > m_height) || (visiblescr.max_x > m_width)) - logerror("visarea larger then reg[20]: %dx%d, %dx%d", visiblescr.max_x, visiblescr.max_y, m_width, m_height); + logerror("visarea larger then reg[20]: %dx%d, %dx%d\n", visiblescr.max_x, visiblescr.max_y, m_width, m_height); // bounds check if (visiblescr.min_x < 0) |
