Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-05-23 22:20:01 +03:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

raiden2: Advance the cop code a little [O. Galibert]

Browse Source
This commit is contained in:
Olivier Galibert 2010-12-19 21:24:14 +00:00
parent e9007eba58
commit 8ae2b4887e
2 changed files with 33 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
src/mame/drivers/raiden2.c
View File

@ -274,6 +274,16 @@ READ16_MEMBER(raiden2_state::cop_status_r)
return cop_status;
}
READ16_MEMBER(raiden2_state::cop_angle_r)
{
return cop_angle;
}
READ16_MEMBER(raiden2_state::cop_dist_r)
{
return cop_dist;
}
WRITE16_MEMBER(raiden2_state::cop_scale_w)
{
COMBINE_DATA(&cop_scale);
@ -308,24 +318,31 @@ WRITE16_MEMBER(raiden2_state::cop_cmd_w)
space.write_dword(cop_regs[0] + 4 + offset*4, space.read_dword(cop_regs[0] + 4 + offset*4) + space.read_dword(cop_regs[0] + 16 + offset*4));
break;
case 0x130e:
case 0x138e: { // 130e 0005 bf7f 0010 - 0984 0aa4 0d82 0aa2 039b 0b9a 0b9a 0a9a
int dx = space.read_dword(cop_regs[1]+4) - space.read_dword(cop_regs[0]+4);
int dy = space.read_dword(cop_regs[1]+8) - space.read_dword(cop_regs[0]+8);
if(!dy)
if(!dy) {
cop_status |= 0x8000;
else {
UINT8 angle = atan(double(dx)/double(dy)) * 128 / M_PI;
if(dx<0)
angle += 0x80;
space.write_byte(cop_regs[0]+0x34, angle);
cop_angle = 0;
} else {
cop_angle = atan(double(dx)/double(dy)) * 128 / M_PI;
if(dy<0)
cop_angle += 0x80;
}
dx = dx >> 16;
dy = dy >> 16;
cop_dist = sqrt((double)(dx*dx+dy*dy));
if(data & 0x0080) {
space.write_byte(cop_regs[0]+0x34, cop_angle);
space.write_word(cop_regs[0]+0x38, cop_dist);
}
break;
}
case 0x3bb0: { // 3bb0 0004 007f 0038 - 0f9c 0b9c 0b9c 0b9c 0b9c 0b9c 0b9c 099c
int dx = (space.read_dword(cop_regs[1]+4) - space.read_dword(cop_regs[0]+4)) >> 16;
int dy = (space.read_dword(cop_regs[1]+8) - space.read_dword(cop_regs[0]+8)) >> 16;
space.write_word(cop_regs[0]+0x38, sqrt((double)(dx*dx+dy*dy)));
// called systematically after 130e/138e, no results expected it seems
break;
}
@ -806,6 +823,8 @@ static ADDRESS_MAP_START( raiden2_mem, ADDRESS_SPACE_PROGRAM, 16, raiden2_state
AM_RANGE(0x00500, 0x00503) AM_WRITE(cop_cmd_w)
AM_RANGE(0x00590, 0x00599) AM_READ(cop_itoa_digits_r)
AM_RANGE(0x005b0, 0x005b1) AM_READ(cop_status_r)
AM_RANGE(0x005b2, 0x005b3) AM_READ(cop_dist_r)
AM_RANGE(0x005b4, 0x005b5) AM_READ(cop_angle_r)
AM_RANGE(0x00620, 0x0062b) AM_WRITE(tile_scroll_w)
AM_RANGE(0x006a0, 0x006a3) AM_WRITE(sprcpt_val_1_w)

8
src/mame/includes/raiden2.h
View File

@ -26,14 +26,16 @@ public:
DECLARE_WRITE16_MEMBER( cop_cmd_w );
DECLARE_READ16_MEMBER ( cop_itoa_digits_r );
DECLARE_READ16_MEMBER ( cop_status_r );
DECLARE_READ16_MEMBER ( cop_dist_r );
DECLARE_READ16_MEMBER ( cop_angle_r );
DECLARE_WRITE16_MEMBER ( cop_dma_trigger_w );
DECLARE_WRITE16_MEMBER ( cop_tile_bank_2_w );
DECLARE_WRITE16_MEMBER ( tile_scroll_w );
DECLARE_WRITE16_MEMBER ( tile_bank_01_w );
DECLARE_WRITE16_MEMBER ( raiden2_background_w );
DECLARE_WRITE16_MEMBER ( raiden2_foreground_w );
DECLARE_WRITE16_MEMBER ( raiden2_midground_w );
DECLARE_WRITE16_MEMBER ( raiden2_text_w );
DECLARE_WRITE16_MEMBER ( raiden2_midground_w );
DECLARE_WRITE16_MEMBER ( raiden2_text_w );
DECLARE_WRITE16_MEMBER( sprcpt_val_1_w );
DECLARE_WRITE16_MEMBER( sprcpt_val_2_w );
@ -62,7 +64,7 @@ public:
UINT16 scrollvals[6];
UINT32 cop_regs[4], cop_itoa;
UINT16 cop_status, cop_scale, cop_itoa_digit_count;
UINT16 cop_status, cop_scale, cop_itoa_digit_count, cop_angle, cop_dist;
UINT8 cop_itoa_digits[10];
UINT16 cop_dma_mode, cop_dma_adr, cop_dma_size, cop_dma_v1, cop_dma_v2, cop_dma_v3;
UINT16 sprites[0x800], sprites_cur_start;