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sms wip: initial graphics support

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@761 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-08-25 16:25:22 +00:00
parent 67e50ff8d9
commit 200772b790
8 changed files with 251 additions and 37 deletions
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8
pico/pico_int.h
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@ -272,7 +272,7 @@ struct PicoMisc
struct Pico
{
unsigned char ram[0x10000]; // 0x00000 scratch ram
union {
union { // vram is byteswapped for easier reads when drawing
unsigned short vram[0x8000]; // 0x10000
unsigned char vramb[0x4000]; // VRAM in SMS mode
};
@ -415,6 +415,7 @@ int CM_compareRun(int cyc, int is_sub);
// draw.c
PICO_INTERNAL void PicoFrameStart(void);
void PicoDrawSync(int to, int blank_last_line);
void BackFill(int reg7, int sh);
extern int DrawScanline;
#define MAX_LINE_SPRITES 29
extern unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES];
@ -422,6 +423,11 @@ extern unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES];
// draw2.c
PICO_INTERNAL void PicoFrameFull();
// mode4.c
void PicoFrameStartMode4(void);
void PicoLineMode4(int line);
void PicoDoHighPal555M4(void);
// memory.c
PICO_INTERNAL void PicoInitPc(unsigned int pc);
PICO_INTERNAL unsigned int PicoCheckPc(unsigned int pc);