collapseos/blk/310

CODE PICK
    HL POP,
    ( x2 )
    L SLA, H RL,
    SP ADDHLd,
    C (HL) LDrr,
    HL INCd,
    B (HL) LDrr,
    ( check PS range before returning )
    EXDEHL,
    HL PS_ADDR LDdn,
    DE SUBHLd,
    CC lblofl @ JPc, ( abortUnderflow-B298 )
    BC PUSH,
;CODE
Copy boot.z80 to blkfs 2020-04-23 11:19:12 +10:00			`CODE PICK`
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,`
Copy boot.z80 to blkfs 2020-04-23 11:19:12 +10:00			`( x2 )`
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			`L SLA, H RL,`
			`SP ADDHLd,`
Copy boot.z80 to blkfs 2020-04-23 11:19:12 +10:00			`C (HL) LDrr,`
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 INCd,`
Copy boot.z80 to blkfs 2020-04-23 11:19:12 +10:00			`B (HL) LDrr,`
			`( check PS range before returning )`
			`EXDEHL,`
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 PS_ADDR LDdn,`
			`DE SUBHLd,`
			`CC lblofl @ JPc, ( abortUnderflow-B298 )`
			`BC PUSH,`
Copy boot.z80 to blkfs 2020-04-23 11:19:12 +10:00			`;CODE`