 Ben Kurtovic
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af58cedce3
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Fix assorted bugs.
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8 years ago |
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Ben Kurtovic
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1d604d774b
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Cleanup VDP debug code; don't enable IRQ until one instr past EI.
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8 years ago |
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Ben Kurtovic
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56580d7392
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Implement NEG and some bugfixes.
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8 years ago |
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Ben Kurtovic
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e4bbc8709f
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Clean up VDP background code.
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8 years ago |
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Ben Kurtovic
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cbe14eadcd
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Refactor: pass the entire Config object to the emulator.
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8 years ago |
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Ben Kurtovic
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de2cf71068
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Clean up and refactor.
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8 years ago |
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Ben Kurtovic
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a69328a234
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Add buggy SDL rendering, background drawing.
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8 years ago |
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Ben Kurtovic
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1942d797aa
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Implement more instructions, mainly bit-shifting.
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8 years ago |
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Ben Kurtovic
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fdda540d26
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Refactor flag setting code; implement more instructions.
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8 years ago |
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Ben Kurtovic
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67e3133f14
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Fix a bug in VDP control port writes; rename 'last_index' to 'regs.ixy'.
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8 years ago |
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Ben Kurtovic
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d6d3b60b3e
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Fix a couple assembler bugs involving obscure instructions.
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8 years ago |
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Ben Kurtovic
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05b0bbe523
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Make Z80 register pairs friendlier. Implement more instructions.
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8 years ago |
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Ben Kurtovic
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42690f9380
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Implement more instructions.
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8 years ago |
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Ben Kurtovic
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c14ad04c48
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Simplify and fix index bit instructions in disassembler.
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8 years ago |
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Ben Kurtovic
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34c9e778b5
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Add stubs for PSG.
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8 years ago |
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Ben Kurtovic
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80e361c111
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More instructions, mainly index-related; tweaks.
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8 years ago |
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Ben Kurtovic
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df3277a2b6
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Fix bugs in BIT; add trace for IRQ; make MMU mapping logs trace-level.
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8 years ago |
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Ben Kurtovic
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53c0757362
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Implement an assorted bunch of instructions.
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8 years ago |
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Ben Kurtovic
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1b48fbe6a2
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Add Z80 INT support and VDP frame interrupts.
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8 years ago |
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Ben Kurtovic
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1227d7caa5
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Add VDP register parsing and dumping.
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8 years ago |
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Ben Kurtovic
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3b12d5cd12
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Refactor emulator control. Add callback for SDL.
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8 years ago |
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Ben Kurtovic
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cbc1d7f02d
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EX; more bitwise/arithmetic ops; bugfixes.
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8 years ago |
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Ben Kurtovic
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06b7dfaca3
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Implement CRAM, some more loads and arithmetic operations.
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8 years ago |
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Ben Kurtovic
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1cc4f06b89
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LDI; LDD; LDIR; LDDR
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8 years ago |
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Ben Kurtovic
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da5765a3c7
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PUSH/POP IX/Y; DJNZ; LD (HL), r
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8 years ago |
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Ben Kurtovic
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61c104a0f3
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Rework timing system for VDP scanlines; flesh out more VDP logic.
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8 years ago |
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Ben Kurtovic
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a09242ac29
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Some refactoring wrt I/O; start work on VDP.
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8 years ago |
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Ben Kurtovic
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3ca7f26aa0
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Stub out port reads/writes; RETN; RST.
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8 years ago |
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Ben Kurtovic
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a167e9dcd7
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RET; IN/OUT r/(C), (C)/r; INI/D; INI/DR; OUTI/D; OTI/DR; NOP2
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8 years ago |
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Ben Kurtovic
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1efe2b579d
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Add POP; fix bugs involving relative jumps and PUSH.
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8 years ago |
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Ben Kurtovic
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3381c36c89
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PUSH
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8 years ago |
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Ben Kurtovic
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8de5117a49
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mmu_write_double, stack_push; LD (HL), n; JR; CALL
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8 years ago |
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Ben Kurtovic
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c2a52194a8
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CP, IN, OUT, JP cc; stub out port functions.
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8 years ago |
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Ben Kurtovic
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7c6d58fd6b
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XOR r; LD (nn, A)
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8 years ago |
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Ben Kurtovic
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deb9943b1c
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Split off jump table; implement IM and JP nn.
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8 years ago |
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Ben Kurtovic
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bec5bbc85c
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Add smart padding for disassembled bytes.
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8 years ago |
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Ben Kurtovic
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ff25c1d436
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Nicer bytestring formatting in disassembly.
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8 years ago |
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Ben Kurtovic
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b504b7c888
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Include memory addresses in disassembly comments.
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8 years ago |
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Ben Kurtovic
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c53de6f4c5
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Fix alignment in disassembler-generated .rom_size directive.
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8 years ago |
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Ben Kurtovic
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6e69d09d68
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Disassemble code in firxt 0x1000 bytes as a test.
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8 years ago |
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Ben Kurtovic
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da2a767459
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Fix a broken jump argument; use hex for ports.
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8 years ago |
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Ben Kurtovic
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1818c1eede
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Fix assembler bugs in "ex af, af'" and "ex (sp), hl".
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8 years ago |
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Ben Kurtovic
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0e0c81589f
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(Very basic) working disassembler.
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8 years ago |
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Ben Kurtovic
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fb9d6e1b2b
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Work on ROM file (i.e., non-inline) disassembler.
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8 years ago |
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Ben Kurtovic
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962171b7ee
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Store a few extra header fields in the ROM struct; typo fix.
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8 years ago |
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Ben Kurtovic
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4047d6e3f4
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Fill out instruction argument tables.
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8 years ago |
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Ben Kurtovic
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43e641fabd
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Finish argument immediate decoding.
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8 years ago |
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Ben Kurtovic
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610f9cf549
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Start filling out argument decoder table; make things const.
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8 years ago |
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Ben Kurtovic
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dd83c7bddf
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Start working on argument disassembler.
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8 years ago |
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Ben Kurtovic
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89d3d65cde
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Finish mnemonics; shorten size tables.
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8 years ago |
