340
edits
Changes
→Screen
Line 164:
Line 164:
This uses the hardware registers via the vaddr loaded with __OSPhysicalToEffectiveUncached(0x0C200000). The coreinit register r/w access code for this will only access the registers if OSIsECOMode() returns 0(when reading it would always return value 0 if that func-call returns non-zero). Internally the coreinit reg-access functions for this use word-offsets for the registers. The registers are accessed from there with the following: above_vaddr_base + (screenid<<9) + reg_wordoffset.
This uses the hardware registers via the vaddr loaded with __OSPhysicalToEffectiveUncached(0x0C200000). The coreinit register r/w access code for this will only access the registers if OSIsECOMode() returns 0(when reading it would always return value 0 if that func-call returns non-zero). Internally the coreinit reg-access functions for this use word-offsets for the registers. The registers are accessed from there with the following: above_vaddr_base + (screenid<<9) + reg_wordoffset.
+
+OSFatal does the following for initializing the framebuffer addresses: "OSScreenSetBufferEx(0, 0xF4000000)" and "OSScreenSetBufferEx(1, 0xF4000000 + OSScreenGetBufferSizeEx(0))".
+
+The framebuffer addresses passed to OSScreenSetBufferEx must be 0x100-byte aligned(bitmask 0xff clear). The byte-size of each scanline in the framebuffers are 0x100-byte aligned as well.
{| class="wikitable"
{| class="wikitable"