| 781 | } |
| 782 | |
| 783 | static BYTE __stdcall IOWrite_C07x(WORD pc, WORD addr, BYTE bWrite, BYTE d, ULONG nExecutedCycles) |
| 784 | { |
| 785 | // Apple//e TRM, pg-258: "Reading or writing any address in the range $C070-$C07F also triggers the paddle timer and resets the VBLINT(*)." (*) //c only! |
| 786 | JoyResetPosition(nExecutedCycles); //$C07X Analog input reset |
| 787 | |
| 788 | switch (addr & 0xf) |
| 789 | { |
| 790 | case 0x0: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 791 | #ifdef RAMWORKS |
| 792 | case 0x1: return MemSetPaging(pc, addr, bWrite, d, nExecutedCycles); // extended memory card set page |
| 793 | case 0x2: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 794 | case 0x3: return MemSetPaging(pc, addr, bWrite, d, nExecutedCycles); // Ramworks III set page |
| 795 | #else |
| 796 | case 0x1: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 797 | case 0x2: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 798 | case 0x3: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 799 | #endif |
| 800 | case 0x4: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 801 | case 0x5: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 802 | case 0x6: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 803 | case 0x7: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 804 | case 0x8: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 805 | case 0x9: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 806 | case 0xA: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 807 | case 0xB: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 808 | case 0xC: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 809 | case 0xD: return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 810 | case 0xE: if (IS_APPLE2C()) |
| 811 | SetMemMode(g_memmode | MF_IOUDIS); // On: disable IOU access for addresses $C058 to $C05F; enable access to DHIRES switch |
| 812 | else |
| 813 | return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 814 | break; |
| 815 | case 0xF: if (IS_APPLE2C()) |
| 816 | SetMemMode(g_memmode & ~MF_IOUDIS); // Off: enable IOU access for addresses $C058 to $C05F; disable access to DHIRES switch |
| 817 | else |
| 818 | return IO_Null(pc, addr, bWrite, d, nExecutedCycles); |
| 819 | break; |
| 820 | } |
| 821 | |
| 822 | return 0; |
| 823 | } |
| 824 | |
| 825 | //----------------------------------------------------------------------------- |
| 826 |
nothing calls this directly
no test coverage detected