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author Curt Coder <curtcoder@mail.com>2013-03-07 15:28:25 +0000
committer Curt Coder <curtcoder@mail.com>2013-03-07 15:28:25 +0000
commit76ac08a0b805820f12be6dac3daee17f8eb26953 (patch)
tree74a1a81d8e2a6cf242d498978b3573015c4d7a0c /src/emu/video/tms3556.h
parent7e0b63efa9978e8611337c4ac80ffc293bb527ee (diff)
Moved some files to where they belong. (nw)
Diffstat (limited to 'src/emu/video/tms3556.h')
-rw-r--r--src/emu/video/tms3556.h112
1 files changed, 112 insertions, 0 deletions
diff --git a/src/emu/video/tms3556.h b/src/emu/video/tms3556.h
new file mode 100644
index 00000000000..3a91009bb16
--- /dev/null
+++ b/src/emu/video/tms3556.h
@@ -0,0 +1,112 @@
+/***************************************************************************
+
+ Texas Instruments TMS3556 Video Display Processor
+
+ ***************************************************************************/
+
+
+#pragma once
+
+#ifndef __TMS3556_H__
+#define __TMS3556_H__
+
+///*************************************************************************
+// MACROS / CONSTANTS
+///*************************************************************************
+
+#define TMS3556_TOP_BORDER 1
+#define TMS3556_BOTTOM_BORDER 1
+#define TMS3556_LEFT_BORDER 8
+#define TMS3556_RIGHT_BORDER 8
+#define TMS3556_TOTAL_WIDTH (320 + TMS3556_LEFT_BORDER + TMS3556_RIGHT_BORDER)
+#define TMS3556_TOTAL_HEIGHT (250 + TMS3556_TOP_BORDER + TMS3556_BOTTOM_BORDER)
+
+/* if DOUBLE_WIDTH set, the horizontal resolution is doubled */
+#define TMS3556_DOUBLE_WIDTH 1
+
+#define TMS3556_MODE_OFF 0
+#define TMS3556_MODE_TEXT 1
+#define TMS3556_MODE_BITMAP 2
+#define TMS3556_MODE_MIXED 3
+
+
+///*************************************************************************
+// INTERFACE CONFIGURATION MACROS
+///*************************************************************************
+
+#define MCFG_TMS3556_ADD(_tag) \
+ MCFG_DEVICE_ADD(_tag, TMS3556, 0)
+
+///*************************************************************************
+// TYPE DEFINITIONS
+///*************************************************************************
+
+// ======================> tms3556_device
+
+class tms3556_device : public device_t,
+ public device_memory_interface
+{
+public:
+ // construction/destruction
+ tms3556_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ DECLARE_READ8_MEMBER( vram_r );
+ DECLARE_WRITE8_MEMBER( vram_w );
+ DECLARE_READ8_MEMBER( reg_r );
+ DECLARE_WRITE8_MEMBER( reg_w );
+
+ void interrupt(running_machine &machine);
+
+ UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+
+ // device_config_memory_interface overrides
+ virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const;
+
+ // address space configurations
+ const address_space_config m_space_config;
+
+ inline UINT8 readbyte(offs_t address);
+ inline void writebyte(offs_t address, UINT8 data);
+
+ void draw_line_empty(UINT16 *ln);
+ void draw_line_text_common(UINT16 *ln);
+ void draw_line_bitmap_common(UINT16 *ln);
+ void draw_line_text(UINT16 *ln);
+ void draw_line_bitmap(UINT16 *ln);
+ void draw_line_mixed(UINT16 *ln);
+ void draw_line(bitmap_ind16 &bmp, int line);
+ void interrupt_start_vblank(void);
+
+private:
+ // registers
+ UINT8 m_control_regs[8];
+ UINT16 m_address_regs[8];
+ UINT16 m_write_ptr;
+
+ // register interface
+ int m_reg_ptr;
+ int m_reg_access_phase;
+ int m_magical_mystery_flag;
+
+ int m_scanline; // scanline counter
+ int m_blink, m_blink_count; // blinking
+ int m_bg_color; // background color for current line
+ int m_name_offset; // current offset in name table
+ int m_cg_flag; // c/g flag (mixed mode only)
+ int m_char_line_counter; // character line counter (decrements from 10, 0 when we have reached
+ // last line of character row)
+ int m_dbl_h_phase[40]; // double height phase flags (one per horizontal character position)
+
+ bitmap_ind16 m_bitmap;
+};
+
+
+// device type definition
+extern const device_type TMS3556;
+
+
+#endif