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Gradius 4: Fukkatsu

0.86 [Ville Linde]


- 1) During parts of stage 4 the LEDs display "73" or "71" instead of the usual spinning pattern, possibly indicating an error condition (though the gameplay and graphics seem normal as far as I can tell). 2) Triangular sections of background graphics at the corners of the screen sometimes disappear for a few dozen frames and then reappear. This is particularly noticeable in stage 3 (see screenshot). gradius4_0111gre AWJ


- 0.113u3: Ville Linde fixed several SHARC opcodes where data transfer was done regardless of the condition. This fixes many things, probably all the remaining clipping issues in Gradius 4. At least the planet zooming out in the intro works now.

- 0.109u3: Major rewrite of the SHARC core [Ville Linde]: Bit-accurate reciprocals. More accurate pipeline emulation. Fixed the problems with operation latencies. Regression tested a few floating-point operations for bit-accurate results. Improved DMA emulation. This update will fix most (but not all) of the clipping problems in Gradius 4 and NBA Play by Play.

- 0.102u2: Aaron Giles rewrote the Voodoo emulation code and added proper edges calculated for polygons (stars appear in Gradius 4 now).

- 0.102u1: Added RF5C400 stereo sound. Changed user4 roms to sound1.

- 0.102: Ville Linde fixed Gradius 4 - Game now playable. Fixed user5 roms order and added dipswitches 'Screen Flip (H)/(V)', 'Harness' and 'Monitor Type'.

- 9th November 2005: Ville Linde - Fixed a DMA latency issue in the SHARC core. The graphics problems in Gradius 4 are now fixed.

- 7th November 2005: Ville Linde - Fixed another bunch of SHARC bugs and added a few more opcodes. Most of the missing graphics are now showing in Gradius 4, but they are still rather broken, probably due to some more SHARC bugs.

- 30th October 2005: Ville Linde - I've continued to add features and fix bugs in the SHARC core. Now the SHARC is sending the first triangle commands to the Voodoo. For now it's limited to some non-textured triangles in the color test screen and the stars in the background of the first level.

- 24th October 2005: Ville Linde - Fixed some stupid mistakes and added a few more SHARC opcodes and now Gradius 4 gets ingame. Most of the graphics are still missing as they are done with the 3dfx chips.

- 0.97u1: Added ADSP21062 (36MHz) CPU3 and dipswitches. Changed user4 to user5 roms.

- 5th June 2005: Ville Linde - Turns out that Konami Hornet and NWK-TR games require some preformatted data in their backup RAMs (probably as a protective measure). So far I've managed to find the correct values for Gradius 4, Silent Scope, Racing Jam and Racing Jam 2, leaving Silent Scope 2 and Thrill Drive to be done. Gradius 4 gets further, but ends up stuck on the next screen without working controls.

- 25th May 2005: Ville Linde - I've continued my progress on my Analog Devices ADSP-2106x SHARC core. The results are finally starting to show. Gradius IV already passes all of its bootup tests. The 3Dfx chips have also been hooked up already. Unfortunately the game is protected, like all the other Hornet games.

- 21st February 2003: Guru - Gradius 4 (Konami 1998) arrived. Special thanks to Gin (our Japanese contact) for making it all happen again. The dumping project wishes to thank all the people who donated towards this particular raid, including Gin, slaanesh, gnoppi, Louis T., wtc4ever, Renaud D., phys32, R. Belmont, fiji, Amnios and an anonymous donator.

Category: R-Type

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Romset: 31232 kb / 10 files / 13.03 zip