Okay, this this (might) be the last one for a little - I really want to carry on with my game, and not get drawn into doing emulators and assemblers all the time!
There are also several new Z80 opcodes to play with! My included assembler will assemble these correctly for use in the emulator. There are a few more to come.....
swapnib ED 23 A bits 7-4 swap with A bits 3-0 mul ED 30 multiply HL*DE = HLDE (no flags set) add hl,a ED 31 Add A to HL (no flags set) add de,a ED 32 Add A to DE (no flags set) add bc,a ED 33 Add A to BC (no flags set) add hl,$0000 ED 34 LO HI Add A to HL (no flags set) add de,$0000 ED 35 LO HI Add A to DE (no flags set) add bc,$0000 ED 36 LO HI Add A to BC (no flags set) outinb ED 90 out (c),(hl), hl++ ldix ED A4 As LDI, but if byte==A does not copy ldirx ED B4 As LDIR, but if byte==A does not copy lddx ED AC As LDD, but if byte==A does not copy, and DE is incremented lddrx ED BC As LDDR, but if byte==A does not copy fillde ED B5 Using A fill from DE for BC bytes ld hl,sp ED 25 transfer SP to HL ld acc32,hlde ED 20 transfer HLDE into ACC32 ld hlde,acc32 ED 21 transfer ACC32 into HLDE ex acc32,hlde ED 22 swap ACC32 with HLDE inc hlde ED 37 increment 32bit HLDE dec hlde ED 38 increment 32bit HLDE add hlde,a ED 39 Add A to 32bit HLDE add hlde,bc ED 3A Add BC to 32bit HLDE add hlde,$0000 ED 3B LO HI Add $0000 to 32bit HLDE sub hlde,a ED 3C Subtract A from 32bit HLDE sub hlde,bc ED 3D Subtract BC from 32bit HLDE mirror a ED 24 mirror the bits in A mirror de ED 26 mirror the bits in DE push $0000 ED 8A LO HI push 16bit immidiate value popx ED 8B pop value and disguard nextreg reg,val ED 91 reg,val Set a NEXT register (like doing out($243b),reg then out($253b),val ) nextreg reg,a ED 92 reg Set a NEXT register using A (like doing out($243b),reg then out($253b),A ) pixeldn ED 93 Move down a line on the ULA screen pixelad ED 94 using D,E (as Y,X) calculate the ULA screen address and store in HL setae ED 95 Using the lower 3 bits of E (X coordinate), set the correct bit value in A
Download: CSpect Emulator