[VM][FMTOWNS][VRAM] Fix addressing for VRAM ACCESS REGISTER (I/O 0458h).

diff --git a/source/src/vm/fmtowns/vram.cpp b/source/src/vm/fmtowns/vram.cpp
index d413d4d..38bff30 100644 (file)
--- a/source/src/vm/fmtowns/vram.cpp
+++ b/source/src/vm/fmtowns/vram.cpp
@@ -231,7 +231,7 @@ void TOWNS_VRAM::write_io8(uint32_t address,  uint32_t data)
 {
        switch(address & 0xffff) {
        case 0x0458:
-               vram_access_reg_addr = data & 3;
+               vram_access_reg_addr = data & 1;
 //             out_debug_log(_T("VRAM ACCESS(0458h)=%02X"), data);
                break;
        case 0x045a:
@@ -257,7 +257,7 @@ void TOWNS_VRAM::write_io16(uint32_t address,  uint32_t data)
        d.d = data;
        switch(address & 0xffff) {
        case 0x0458:
-               vram_access_reg_addr = data & 3;
+               vram_access_reg_addr = data & 1;
                break;
        case 0x045a:
                {