collapseos/blk/310

CODE PICK
    HL POPqq,
    ( x2 )
    L SLAr, H RLr,
    SP ADDHLss,
    C (HL) LDrr,
    HL INCss,
    B (HL) LDrr,
    ( check PS range before returning )
    EXDEHL,
    HL PS_ADDR LDddnn,
    DE SUBHLss,
    CC lblofl @ JPccnn,    ( abortUnderflow-B298 )
    BC PUSHqq,
;CODE
Copy boot.z80 to blkfs 2020-04-23 11:19:12 +10:00			`CODE PICK`
			`HL POPqq,`
			`( x2 )`
			`L SLAr, H RLr,`
			`SP ADDHLss,`
			`C (HL) LDrr,`
			`HL INCss,`
			`B (HL) LDrr,`
			`( check PS range before returning )`
			`EXDEHL,`
Replace INITIAL_SP with PS_ADDR conf Now I struggle to remember why I ever did things they way I did. There must have been a reason... 2020-05-12 11:08:24 +10:00			`HL PS_ADDR LDddnn,`
Copy boot.z80 to blkfs 2020-04-23 11:19:12 +10:00			`DE SUBHLss,`
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			`CC lblofl @ JPccnn, ( abortUnderflow-B298 )`
Copy boot.z80 to blkfs 2020-04-23 11:19:12 +10:00			`BC PUSHqq,`
			`;CODE`