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Copy boot.z80 to blkfs
2020-04-23 11:19:12 +10:00
H@ ORG !
z80a: make mnemonic names more uniform across assemblers Initially, I used the same letters as those used in the z80 ref docs, but it makes the different assemblers harder to use than they should. Having consistent "argtype" rules across assemblers should help.
2020-06-28 12:01:56 +10:00
0 JP, ( 00, main ) NOP, ( unused ) NOP, NOP, ( 04, BOOT )
Extract EXIT code from stable ABI zone
2020-07-06 03:41:12 +10:00
NOP, NOP, ( 06, uflw ) NOP, NOP, ( 08, LATEST ) NOP, ( unused )
0 A, 0 JP, ( 0b, EXIT ) NOP, ( unused )
z80: remove popRS from stable ABI
2020-07-06 03:44:38 +10:00
0 JP, ( RST 10 ) NOP, NOP, NOP, NOP, ( unused )
z80: remove remaining indirections in execute calls We now have a stable ABI that is pretty cleared up...
2020-06-18 21:50:20 +10:00
NOP, NOP, NOP, ( unused )
z80a: make mnemonic names more uniform across assemblers Initially, I used the same letters as those used in the z80 ref docs, but it makes the different assemblers harder to use than they should. Having consistent "argtype" rules across assemblers should help.
2020-06-28 12:01:56 +10:00
0 JP, ( 1a, next ) NOP, NOP, NOP, ( unused )
z80: prettify
2020-07-06 03:15:26 +10:00
0 JP, ( RST 20 )
Extract (n) code from stable ABI
2020-07-06 04:13:01 +10:00
0 A, 0 JP, ( 23, (n) ) NOP, ( unused )
z80a: make mnemonic names more uniform across assemblers Initially, I used the same letters as those used in the z80 ref docs, but it makes the different assemblers harder to use than they should. Having consistent "argtype" rules across assemblers should help.
2020-06-28 12:01:56 +10:00
0 JP, ( RST 28 )
Extract (s) code from stable ABI zone Only its jump addr remains.
2020-07-05 22:54:22 +10:00
0 A, 0 JP, ( 2b, (s) ) NOP, ( unused )
z80a: make mnemonic names more uniform across assemblers Initially, I used the same letters as those used in the z80 ref docs, but it makes the different assemblers harder to use than they should. Having consistent "argtype" rules across assemblers should help.
2020-06-28 12:01:56 +10:00
0 JP, ( RST 30 )
z80/8086: extract 2>R code from stable ABI zone Only its jump at 0x33 remains. I've also fixed a strange offset oddity in 8086's (n) placement. It was off by 2, but strangely, it ran properly. Anyway, now it's fixed.
2020-07-05 22:03:15 +10:00
0 A, 0 JP, ( 33, 2>R ) NOP, ( unused )
z80a: make mnemonic names more uniform across assemblers Initially, I used the same letters as those used in the z80 ref docs, but it makes the different assemblers harder to use than they should. Having consistent "argtype" rules across assemblers should help.
2020-06-28 12:01:56 +10:00
0 JP, ( RST 38 )