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ReC98/th04/snd/kajaint.asm

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[Decompilation] [th05] Starting the game And that's the intended way to play back the hidden DEMO5.REC. Unlock the Extra Stage with all 4 characters, then hold the left and right arrow keys in the main menu while waiting the usual demo replay. For a recording of that replay, see https://www.youtube.com/watch?v=iP2ywlW2u4U Completes P0119, funded by [Anonymous] and -Tom-.
2020-09-20 17:31:17 +00:00
public SND_KAJA_INTERRUPT
[Maintenance] Replace wrong `cPtrSize` usage with the ARG directive Turns out that ARG RETURNS is only really necessary in DEFCONV functions, which are explicitly declared to use either the C or PASCAL calling convention. In functions without such a declaration, ARG by itself works just fine, and won't emit any instructions on its own. The parameter lists for PASCAL functions still have to be reversed in that case, though… oh well, let's just comment these cases to hopefully reduce the confusion. Part of P0134, funded by [Anonymous].
2021-02-11 17:14:55 +00:00
snd_kaja_interrupt proc
arg @@ax:word
[Reverse-engineering] PMD and MMD function call wrapper Well, the naming. Even though only TH02 actually uses MIDI (and thus, the MMD driver), every game since then contains interrupt instructions for both functions. We could just name it "pmd", since it seems like that's what came first - the AH numbers of the 6 functions that make up MMD's interrupt API are identical to those of the equivalent functions in PMD, even including gaps in the numbering for PMD functions that don't have an equivalent in MIDI. However, except for the FM sound effect handling and the key display in TH05's Music Room, these 6 functions are all the games actually use. Also, we already distinguish between PMD and MMD in the driver check functions, and it might be confusing to only imply PMD from now on? So, "kaja" it is, collectively referring to the shared aspects of both drivers.
2014-11-26 19:03:58 +00:00
push bp
mov bp, sp
Make all sound functions and variables available to C
2015-02-23 10:47:22 +00:00
cmp _snd_bgm_mode, SND_BGM_OFF
[Reverse-engineering] PMD and MMD function call wrapper Well, the naming. Even though only TH02 actually uses MIDI (and thus, the MMD driver), every game since then contains interrupt instructions for both functions. We could just name it "pmd", since it seems like that's what came first - the AH numbers of the 6 functions that make up MMD's interrupt API are identical to those of the equivalent functions in PMD, even including gaps in the numbering for PMD functions that don't have an equivalent in MIDI. However, except for the FM sound effect handling and the key display in TH05's Music Room, these 6 functions are all the games actually use. Also, we already distinguish between PMD and MMD in the driver check functions, and it might be confusing to only imply PMD from now on? So, "kaja" it is, collectively referring to the shared aspects of both drivers.
2014-11-26 19:03:58 +00:00
jz short @@ret
[Maintenance] Replace wrong `cPtrSize` usage with the ARG directive Turns out that ARG RETURNS is only really necessary in DEFCONV functions, which are explicitly declared to use either the C or PASCAL calling convention. In functions without such a declaration, ARG by itself works just fine, and won't emit any instructions on its own. The parameter lists for PASCAL functions still have to be reversed in that case, though… oh well, let's just comment these cases to hopefully reduce the confusion. Part of P0134, funded by [Anonymous].
2021-02-11 17:14:55 +00:00
mov ax, @@ax
Make all sound functions and variables available to C
2015-02-23 10:47:22 +00:00
cmp _snd_bgm_mode, SND_BGM_MIDI
[Reverse-engineering] PMD and MMD function call wrapper Well, the naming. Even though only TH02 actually uses MIDI (and thus, the MMD driver), every game since then contains interrupt instructions for both functions. We could just name it "pmd", since it seems like that's what came first - the AH numbers of the 6 functions that make up MMD's interrupt API are identical to those of the equivalent functions in PMD, even including gaps in the numbering for PMD functions that don't have an equivalent in MIDI. However, except for the FM sound effect handling and the key display in TH05's Music Room, these 6 functions are all the games actually use. Also, we already distinguish between PMD and MMD in the driver check functions, and it might be confusing to only imply PMD from now on? So, "kaja" it is, collectively referring to the shared aspects of both drivers.
2014-11-26 19:03:58 +00:00
jz short @@midi
int 60h
jmp short @@ret
@@midi:
int 61h
@@ret:
pop bp
ret 2
[Maintenance] Replace wrong `cPtrSize` usage with the ARG directive Turns out that ARG RETURNS is only really necessary in DEFCONV functions, which are explicitly declared to use either the C or PASCAL calling convention. In functions without such a declaration, ARG by itself works just fine, and won't emit any instructions on its own. The parameter lists for PASCAL functions still have to be reversed in that case, though… oh well, let's just comment these cases to hopefully reduce the confusion. Part of P0134, funded by [Anonymous].
2021-02-11 17:14:55 +00:00
snd_kaja_interrupt endp