Routines
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E8E8: Graphic Layout Routine: (F3) Increment Index And Jump To N-th Address
Advance the graphic index and jump to the N-th address in the following table.
GraphicLayoutRoutine_IncIndexJumpNth E8E8 LD A,(IX+$00) Fetch the current entity's type into A.
E8EB INC A Step the graphic-set / attribute index on by one.
E8EC CP (IX+$01) Is A less than this entity's flags byte 1? If so, jump to GraphicLayoutRoutine_F3Continue.
E8EF JR C,GraphicLayoutRoutine_F3Continue
E8F1 XOR A Clear A to 00.
Write the wrapped F3 index, index the address list, and jump to that layout.
GraphicLayoutRoutine_F3Continue E8F2 LD (IX+$00),A Set the current entity's entity type.
E8F5 ADD A,A Double A to form a word index into the table.
E8F6 ADD A,$02 A+=02.
E8F8 LD E,A Copy A into E as a saved coordinate / value.
E8F9 LD D,$00 Clear D (high byte of a pointer/offset).
E8FB ADD IX,DE IX+=DE.
E8FD LD E,(IX+$00) Fetch the next graphic-layout address into DE.
E900 LD D,(IX+$01)
E903 PUSH DE Copy DE into IX (using the stack).
E904 POP IX
E906 JP Process_GraphicLayoutData Jump to Process_GraphicLayoutData to process graphic layout data.
View the equivalent code in;
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