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z80: optimize chkPS Inline it in next and make chkPS, call a newly reserved label for it directly, removing a layer of indirection. This frees a spot in the stable ABI.
2020-06-14 23:48:10 +10:00
( Core words )
( KEY and EMIT are not defined here. There're
expected to be defined in platform-specific code. )
CODE EXECUTE
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
DE POP,
z80: optimize chkPS Inline it in next and make chkPS, call a newly reserved label for it directly, removing a layer of indirection. This frees a spot in the stable ABI.
2020-06-14 23:48:10 +10:00
chkPS,
z80: use named labels for boot routines The usage of numerotated labels for this was becoming severly confusing.
2020-06-18 21:16:40 +10:00
JR, lblexec BWR ( execute-B301 )
z80: optimize chkPS Inline it in next and make chkPS, call a newly reserved label for it directly, removing a layer of indirection. This frees a spot in the stable ABI.
2020-06-14 23:48:10 +10:00
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
CODE ROT ( a b c -- b c a )
HL POP, ( C ) DE POP, ( B ) BC POP, ( A )
Copy boot.z80 to blkfs
2020-04-23 11:19:12 +10:00
chkPS,
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
DE PUSH, ( B ) HL PUSH, ( C ) BC PUSH, ( A )
Copy boot.z80 to blkfs
2020-04-23 11:19:12 +10:00
;CODE