diff options
| author | Javier Degirolmo | 2012-07-15 21:02:54 -0300 |
|---|---|---|
| committer | Javier Degirolmo | 2012-07-15 21:02:54 -0300 |
| commit | c7cf8a2eb4178f59a5dfe2c3ad6bf1a39eeca523 (patch) | |
| tree | ddaf8602e1d089644753d6e0a52421f35b730b10 /src-68k/sound | |
| parent | 84ce0220dd5449587467c37d7afbd99fb1fbe69e (diff) | |
Added BGM pausing support (stop BGM to pause, resume BGM to unpause)
Diffstat (limited to 'src-68k/sound')
| -rw-r--r-- | src-68k/sound/echo.68k | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/src-68k/sound/echo.68k b/src-68k/sound/echo.68k index 73eb82f..1d02800 100644 --- a/src-68k/sound/echo.68k +++ b/src-68k/sound/echo.68k @@ -209,17 +209,35 @@ Echo_StopBGM: rts ; End of subroutine ;**************************************************************************** +; Echo_ResumeBGM +; Resumes BGM playback +;**************************************************************************** + +Echo_ResumeBGM: + move.w d0, -(sp) ; Save register + move.b #$06, d0 ; Command $06 = resume BGM + bsr Echo_SendCommand ; Send command to Echo + move.w (sp)+, d0 ; Restore register + rts ; End of subroutine + +;**************************************************************************** ; Echo_GetStatus ; Gets the current status of Echo ; -; output d0.b ... Echo status +; output d0.w ... Echo status ; Bit #0: SFX is playing ; Bit #1: BGM is playing +; Bit #15: command still not parsed ;**************************************************************************** Echo_GetStatus: + moveq #0, d0 Echo_Z80Request ; We need the Z80 bus - move.b ($A01FF0), d0 ; Just get the status + move.b ($A01FF0), d0 ; Get the status flags + tst.b ($A01FFF) ; Check if command still has to be parsed + beq.s @NotBusy ; Any commands left to be parsed? + bset.l #15, d0 ; If so, set the relevant flag +@NotBusy: Echo_Z80Release ; Let the Z80 go! rts ; End of subroutine |