collapseos/arch/z80/trs80/blk/605

CODE @RDSEC ( drv cylsec addr -- f ) EXX, ( protect BC )
    HL POP,
    DE POP,
    BC POP,
    chkPS,
    A 0x31 LDri, ( @RDSEC )
    0x28 RST,
    PUSHZ,
EXX, ( unprotect BC ) ;CODE
z80: protect or avoid BC wherever it's used For the IY->BC move, of course. 2020-07-06 13:12:17 +10:00			`CODE @RDSEC ( drv cylsec addr -- f ) EXX, ( protect BC )`
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			`HL POP,`
			`DE POP,`
			`BC POP,`
recipes/trs80: making progress on floppy drivers 2020-05-01 06:10:35 +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			`A 0x31 LDri, ( @RDSEC )`
			`0x28 RST,`
recipes/trs80: making progress on floppy drivers 2020-05-01 06:10:35 +10:00			`PUSHZ,`
z80: protect or avoid BC wherever it's used For the IY->BC move, of course. 2020-07-06 13:12:17 +10:00			`EXX, ( unprotect BC ) ;CODE`