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Mirror of CollapseOS
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collapseos/arch/z80/trs80/blk/603

603 390B
Neapstrādāts Parastais skats Vēsture

Add a layer of indirection for KEY
pirms 4 gadiem
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.
pirms 3 gadiem
​
trs80: implement AT-XY Also, I've run VE on the TRS-80 for the first time! It doesn't work well though. Screen is mostly blank all the time. I removed instructions from the recipe which became obsolete when Collapse OS became 100% bootstrapped. Also, I've updated instructions to change the NL override which is necessary for blkup to work.
pirms 4 gadiem
recipes/trs80: making progress on floppy drivers
pirms 4 gadiem
z80: protect or avoid BC wherever it's used For the IY->BC move, of course.
pirms 3 gadiem
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.
pirms 3 gadiem
​
​
z80: protect or avoid BC wherever it's used For the IY->BC move, of course.
pirms 3 gadiem
​
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.
pirms 3 gadiem
​
​
​
z80: protect or avoid BC wherever it's used For the IY->BC move, of course.
pirms 3 gadiem
 12345678910111213141516 
  1. CODE (key)

  2.     A 0x01 LDri, ( @KEY )

  3.     0x28 RST,

  4.     PUSHA,

  5. ;CODE

  6. CODE (emit) EXX, ( protect BC )

  7.     BC POP, ( c == @DSP arg ) chkPS,

  8.     A 0x02 LDri, ( @DSP )

  9.     0x28 RST,

  10. EXX, ( unprotect BC ) ;CODE

  11. CODE AT-XY EXX, ( protect BC )

  12.     DE POP, H E LDrr, ( Y )

  13.     DE POP, L E LDrr, ( X ) chkPS,

  14.     A 0x0f LDri, ( @VDCTL ) B 3 LDri, ( setcur )

  15.     0x28 RST,

  16. EXX, ( unprotect BC ) ;CODE