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collapseos/arch/z80/rc2014/blk/619

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By default, allocate about 0x100 bytes for PSP+RSP During "make updatebootstrap", we use less than 0x20 bytes on the PSP side and less than 0x40 bytes on the RSP one. 0x100 bytes ought to be enough for anybody.
2020-05-15 08:41:09 +10:00
0xff00 CONSTANT RS_ADDR 0xfffa CONSTANT PS_ADDR
Add HERESTART xcomp config
2020-06-29 09:45:28 +10:00
RS_ADDR 0x80 - CONSTANT SYSVARS
0x8000 CONSTANT HERESTART
emul/z80: decouple SDC and SPI My idea of plugging a RC2014 bridge directly onto a Sega Master System cartridge doesn't work. The SMS eats all I/O addr space, we can't use it. Therefore, this naive idea, in the emulator, of reusing sdc.c in sms.c as-is, doesn't work either. I'll have to find another way of communicating to a SPI device on the SMS. I'll probably do it through a controller port. Meanwhile, I need to decouple SPI from SDC in the emulator code so that I can reuse sdc.c. This is what is done here.
2020-10-30 06:01:25 +11:00
4 CONSTANT SPI_DATA 5 CONSTANT SPI_CTL 1 CONSTANT SDC_DEVID
recipes/rc2014: move recipe blocks into local overlay
2020-09-21 00:50:13 +10:00
602 LOAD ( acia decl )
Move z80a from B200 to B5 The idea is to consider assemblers as "runtime" apps instead of placing them in the "bootstrap" section of the blocks. These apps will be used for much more than bootstrapping. Moved its documentation to doc/asm.txt and made its code blocks more compact.
2020-09-22 07:51:08 +10:00
5 LOAD ( z80 assembler )
z80: make boot binary a 2-part process Previously, recipes that began spitting binary contents before loading block 282 would end up with VARIABLE code in their binary, thus breaking them. We fix this by making this loading process 2-part.
2020-06-27 11:41:17 +10:00
262 LOAD ( xcomp ) 282 LOAD ( boot.z80.decl )
270 LOAD ( xcomp overrides ) 283 335 LOADR ( boot.z80 )
recipes/rc2014: move recipe blocks into local overlay
2020-09-21 00:50:13 +10:00
353 LOAD ( xcomp core low ) 603 605 LOADR ( acia )
emul/z80: decouple SDC and SPI My idea of plugging a RC2014 bridge directly onto a Sega Master System cartridge doesn't work. The SMS eats all I/O addr space, we can't use it. Therefore, this naive idea, in the emulator, of reusing sdc.c in sms.c as-is, doesn't work either. I'll have to find another way of communicating to a SPI device on the SMS. I'll probably do it through a controller port. Meanwhile, I need to decouple SPI from SDC in the emulator code so that I can reuse sdc.c. This is what is done here.
2020-10-30 06:01:25 +11:00
419 LOAD 423 436 LOADR
Move most of the high layer of comp core into the low one With KEY and EMIT being switch words, most of the high layer can be defined before drivers. In addition to this change, I've compacted core blocks which were becoming quite sparse.
2020-10-29 09:06:58 +11:00
390 LOAD ( xcomp core high )
rc2014: move xcomp unit's contents to blkfs
2020-05-14 05:19:46 +10:00
(entry) _
( Update LATEST )
PC ORG @ 8 + !
emul/z80: decouple SDC and SPI My idea of plugging a RC2014 bridge directly onto a Sega Master System cartridge doesn't work. The SMS eats all I/O addr space, we can't use it. Therefore, this naive idea, in the emulator, of reusing sdc.c in sms.c as-is, doesn't work either. I'll have to find another way of communicating to a SPI device on the SMS. I'll probably do it through a controller port. Meanwhile, I need to decouple SPI from SDC in the emulator code so that I can reuse sdc.c. This is what is done here.
2020-10-30 06:01:25 +11:00
," ACIA$ BLK$ " EOT,
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