General program

▲DMA: Q ) Transfer from A-BUS to C-BUS using CPU-DMA does not go well.; Q ) Transfer between the same buses is not possible using SCU-DMA.; Q ) Transfer from HighRAM to B-Bus does not go well with SCU-DMA.; Q ) Regarding the specifications of the SCU-DMA indirect mode table.; Q ) Regarding the restrictions during level 1 activation in DMA.; Q ) Regarding the simultaneous use of SCU-DMA channels.; Q ) Which is the fastest transfer method from LowRAM to VDP1?

▲Work RAM High & Low: Q ) What is the difference between High-RAM and Low-RAM?

▲CD access related: Q ) How to do overlay programming?; Q ) How to check the CD tray open?; Q ) How to extract the stream resident in the CD buffer sector by sector?; Q ) Is it possible that the return value of GFS_FRead is not returned correctly?; Q ) How to find the frame address (FAD) using CDC function group.; Q ) Please tell me how to play CDDA.; Q ) What should I do if a reading error occurs with the CD-ROM?; Q ) Please tell me how to use the CD buffer effectively.; Q ) I want to stop CDDA playback in the middle of playback, retrieve other data from the CD, and then play CDDA from where it left off.

▲VDP(1&2): Q ) I want to insert sprites between BG.; Q ) The aspect ratio looks the same for 320x224 and 320x240.; Q ) Regarding the aspect ratio of the screen mode.; Q ) Is it possible to output RGB code and palette code at the same time?; Q ) Please tell me the difference between color lookup table (CLUT) mode and 16 color palette mode.; Q ) Please tell me how to use color lookup mode.; Q ) Can I use Lowreso for VDP1 and Hireso for VDP2?; Q ) Is it possible to have a horizontal resolution of 256?; Q ) How can I display 32000 colors in 640x480 TV mode?; Q ) When using ColorRAM in 2048 color mode, the 2047th color code cannot be used.; Q ) When I use mesh, the screen blurs.; Q ) When I change the horizontal resolution, noise appears on the screen.; Q ) When I change the horizontal resolution from 320 to 352, the display shifts to the left...; Q ) What does it mean that NBG1 can be used as an expansion screen?; Q ) How to display RBG in high resolution?; Q ) Can I play Gouro in high resolution?; Q ) When using RBG0 and RBG1, can only rotation be done on 2 axes?

▲Backup: Q ) How do I deal with a backup file that is not in an unformatted state and is corrupted?; Q ) The size returned by the backup management screen and the application are different.; Q ) I don't really understand how to calculate "block" as a unit of capacity.; Q ) How should I check the remaining backup capacity?; Q ) What should I set as the 'language type' when saving?; Q ) How do I check the connection of the backup cartridge?; Q ) How should I do a bug check if the backup RAM is uninitialized?

▲SOUND: Q ) What are the STEREO/MONO settings for CD-DA?; Q ) It doesn't work when I set SND_Init to slInitSound.; Q ) How to set the volume/Pan without using the sound I/F library in SBL?; Q ) I want to pan the sequence, but the sound is coming out in the middle.; Q ) How do you calculate the PCM playback pitch?; Q ) When playing a PCM stream, I want to bring the data to the 68000 side.; Q ) How to apply effects to PCM stream playback; Q ) The slot is fixed when playing a PCM stream.; Q ) The volume becomes low when using Direct MIDI.; Q ) Regarding the floating point specifications of the delay buffer.

▲Others: Q ) When SH2 crashed.; Q ) Don't you think there are not enough registers for SH2?; Q ) What are the parameter rules in GCC (at the assembler level)?; Q ) Are there any precautions when using the SH2 divider?; Q ) I would like to know the time required for data transfer by CPU, DMA (CPU/SCU), etc.; Q ) What should I be careful about when developing SATURN software?; Q ) What trap vectors can be used?; Q ) Even if I create an IP, it does not boot.; Q ) What should I be careful about when creating a PAL version?; Q ) Which ANSI C library can be used for SEGASATURN development?; Q ) What about the default values of VDP, SCU, and SCSP when changing the clock?; Q ) Regarding the recording range of the CD program area.; Q ) Regarding data cartridges.; Q ) I want to create a self-starting CD.; Q ) How to put data as big endian on byte boundaries?; Q ) Where should I set the load address for 1st Read File?; Q ) When I open the tray the moment the SEGA logo blacks out, it goes out of control.; Q ) Please tell me about the hierarchical structure of 3D models.

★ FAQ