Rev 3236 | Rev 3908 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 3236 | Rev 3880 | ||
|---|---|---|---|
| Line 73... | Line 73... | ||
| 73 | * mapped devices and cannot be used. |
73 | * mapped devices and cannot be used. |
| 74 | * |
74 | * |
| 75 | */ |
75 | */ |
| 76 | static bool frame_available(pfn_t frame) |
76 | static bool frame_available(pfn_t frame) |
| 77 | { |
77 | { |
| 78 | #if MACHINE == msim |
78 | #ifdef msim |
| 79 | /* MSIM device (dprinter) */ |
79 | /* MSIM device (dprinter) */ |
| 80 | if (frame == (KA2PA(MSIM_VIDEORAM) >> ZERO_PAGE_WIDTH)) |
80 | if (frame == (KA2PA(MSIM_VIDEORAM) >> ZERO_PAGE_WIDTH)) |
| 81 | return false; |
81 | return false; |
| 82 | 82 | ||
| 83 | /* MSIM device (dkeyboard) */ |
83 | /* MSIM device (dkeyboard) */ |
| 84 | if (frame == (KA2PA(MSIM_KBD_ADDRESS) >> ZERO_PAGE_WIDTH)) |
84 | if (frame == (KA2PA(MSIM_KBD_ADDRESS) >> ZERO_PAGE_WIDTH)) |
| 85 | return false; |
85 | return false; |
| 86 | #endif |
86 | #endif |
| 87 | 87 | ||
| 88 | #if MACHINE == simics |
88 | #ifdef simics |
| 89 | /* Simics device (serial line) */ |
89 | /* Simics device (serial line) */ |
| 90 | if (frame == (KA2PA(SERIAL_ADDRESS) >> ZERO_PAGE_WIDTH)) |
90 | if (frame == (KA2PA(SERIAL_ADDRESS) >> ZERO_PAGE_WIDTH)) |
| 91 | return false; |
91 | return false; |
| 92 | #endif |
92 | #endif |
| 93 | 93 | ||
| 94 | #if (MACHINE == lgxemul) || (MACHINE == bgxemul) |
94 | #if defined(lgxemul) || defined(bgxemul) |
| 95 | /* gxemul devices */ |
95 | /* gxemul devices */ |
| 96 | if (overlaps(frame << ZERO_PAGE_WIDTH, ZERO_PAGE_SIZE, |
96 | if (overlaps(frame << ZERO_PAGE_WIDTH, ZERO_PAGE_SIZE, |
| 97 | 0x10000000, MB2SIZE(256))) |
97 | 0x10000000, MB2SIZE(256))) |
| 98 | return false; |
98 | return false; |
| 99 | #endif |
99 | #endif |
| Line 216... | Line 216... | ||
| 216 | avail = false; |
216 | avail = false; |
| 217 | else { |
217 | else { |
| 218 | ZERO_PAGE_VALUE = 0xdeadbeef; |
218 | ZERO_PAGE_VALUE = 0xdeadbeef; |
| 219 | if (ZERO_PAGE_VALUE != 0xdeadbeef) |
219 | if (ZERO_PAGE_VALUE != 0xdeadbeef) |
| 220 | avail = false; |
220 | avail = false; |
| 221 | #if (MACHINE == lgxemul) || (MACHINE == bgxemul) |
221 | #if defined(lgxemul) || defined(bgxemul) |
| 222 | else { |
222 | else { |
| 223 | ZERO_PAGE_VALUE_KSEG1(frame) = 0xaabbccdd; |
223 | ZERO_PAGE_VALUE_KSEG1(frame) = 0xaabbccdd; |
| 224 | if (ZERO_PAGE_VALUE_KSEG1(frame) != 0xaabbccdd) |
224 | if (ZERO_PAGE_VALUE_KSEG1(frame) != 0xaabbccdd) |
| 225 | avail = false; |
225 | avail = false; |
| 226 | } |
226 | } |