Difference between revisions of "Save Coordinates to Temp Unit"
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(Created page with " # ROUTINE: SAVE COORDINATES TO TEMP UNIT # Parameters: r4 = Integer byte array: [X Coordinate, Higher Elevation bit, Y Coordinate] 0019f258: 3c03801a lui r3,0x801a 001...") |
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| − | # ROUTINE: SAVE COORDINATES TO TEMP UNIT | + | # ROUTINE: SAVE COORDINATES TO TEMP UNIT '''DUPLICATED''' : [[Store_units_coordinates]] |
# Parameters: r4 = Integer byte array: [X Coordinate, Higher Elevation bit, Y Coordinate] | # Parameters: r4 = Integer byte array: [X Coordinate, Higher Elevation bit, Y Coordinate] | ||
Latest revision as of 19:15, 27 June 2024
# ROUTINE: SAVE COORDINATES TO TEMP UNIT DUPLICATED : Store_units_coordinates # Parameters: r4 = Integer byte array: [X Coordinate, Higher Elevation bit, Y Coordinate]
0019f258: 3c03801a lui r3,0x801a 0019f25c: 8c630bbc lw r3,0x0bbc(r3) # [Temp unit] = RAM_WORD[0x801a0bbc] 0019f260: 90820000 lbu r2,0x0000(r4) # ParameterArray[0] 0019f264: 00000000 nop 0019f268: a0620047 sb r2,0x0047(r3) # [Temp unit X coordinate] = ParameterArray[0] 0019f26c: 3c03801a lui r3,0x801a 0019f270: 8c630bbc lw r3,0x0bbc(r3) # [Temp unit] = RAM_WORD[0x801a0bbc] 0019f274: 90820002 lbu r2,0x0002(r4) # ParameterArray[2] 0019f278: 00000000 nop 0019f27c: a0620048 sb r2,0x0048(r3) # [Temp unit Y coordinate] = ParameterArray[2] 0019f280: 3c05801a lui r5,0x801a 0019f284: 8ca50bbc lw r5,0x0bbc(r5) # [Temp unit] = RAM_WORD[0x801a0bbc] 0019f288: 90830001 lbu r3,0x0001(r4) # ParameterArray[1] 0019f28c: 94a20048 lhu r2,0x0048(r5) # [Temp unit halfword: High byte = [0x49 flags], Low byte = [Y coordinate]] 0019f290: 00031bc0 sll r3,r3,0x0f # ParameterArray[1] << 15 (left shift) 0019f294: 30427fff andi r2,r2,0x7fff # [Temp unit halfword Higher Elevation bit cut off] 0019f298: 00431025 or r2,r2,r3 # Set temp unit halfword Higher Elevation bit = ParameterArray[1] << 15 0019f29c: 03e00008 jr r31 # Return... 0019f2a0: a4a20048 sh r2,0x0048(r5) # ...after the halfword is saved back
