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wip: attempting to do gp_display_frame and gp_screen_init in asm

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Edward R. Gonzalez
2025-08-07 10:54:05 -04:00
parent 046800b9d8
commit ebc6895c61
5 changed files with 82 additions and 40 deletions
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code/asmdd/gp.s
+2 -2
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@@ -97,8 +97,8 @@
# 13 Textured Rectangle Y-Flip (BIOS does set it equal to GPUSTAT.13...?)
# 14 - 23 Not used (should be 0)
# 24 - 31 Command (E1h)
.equiv gp_SetDisplayMode_DrawAllowed, 10
.equiv gp_SetDisplayMode_DipArea, gcmd_SetDrawMode << gcmd_offset | 0x1 << gp_SetDisplayMode_DrawAllowed
.equiv gp_DrawMode_DrawAllowed, 10
.equiv gp_SetDrawMode_DrawAllowed, (gcmd_SetDrawMode << gcmd_offset | 0x1 << gp_DrawMode_DrawAllowed)
# GP0(E3h) - Set Drawing Area top left (X1,Y1)
# GP0(E4h) - Set Drawing Area bottom right (X2,Y2)