Routines
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56110: Print Numbers
Used by the routines at 54098, Print_Bonus and Handler_MainMenu.
Input
A Number of digits to print
BC Screen co-ordinates where to print
DE Pointer to address of digits to print
Print_Numbers 56110 PUSH AF Stash AF on the stack.
56111 CALL Calculate_ScreenBlockAddress Call Calculate_ScreenBlockAddress.
56114 POP AF Restore AF from the stack.
56115 RRCA RRCA.
56116 LD B,A B=A.
This entry point is used by the routines at Print_Score and Print_Level.
Print_Numbers_0 56117 LD A,(DE) A=*DE.
56118 LD C,A C=A.
56119 AND %11110000 Keep only bits 4-7.
56121 RRCA RRCA.
56122 CALL Print_Numbers_1 Call Print_Numbers_1.
56125 INC HL Increment HL by one.
56126 LD A,C A=C.
56127 AND %00001111 Keep only bits 0-3.
56129 RLCA RLCA.
56130 RLCA
56131 RLCA
56132 CALL Print_Numbers_1 Call Print_Numbers_1.
56135 INC DE Increment DE by one.
56136 INC HL Increment HL by one.
56137 DJNZ Print_Numbers_0 Decrease counter by one and loop back to Print_Numbers_0 until counter is zero.
56139 RET Return.
Print_Numbers_1 56140 PUSH BC Stash BC, DE and HL on the stack.
56141 PUSH DE
56142 PUSH HL
56143 LD B,0 B=0.
56145 LD C,A C=A.
56146 PUSH HL Stash HL on the stack.
56147 LD HL,62158 HL=CustomFont.
56150 ADD HL,BC HL+=BC.
56151 POP DE Restore DE from the stack.
56152 LD B,8 B=8.
Print_Numbers_2 56154 LD A,(HL) A=*HL.
56155 LD (DE),A Write A to *DE.
56156 INC HL Increment HL by one.
56157 LD IX,55354 IX=Time.
56161 BIT 1,(IX+0) Test bit 1 of *IX+0.
56165 JR Z,Print_Numbers_3 Jump to Print_Numbers_3 if HL is zero.
56167 LD A,B Jump to Print_Numbers_3 if B is not equal to 5.
56168 CP 5
56170 JR NZ,Print_Numbers_3
56172 PUSH HL Stash HL on the stack.
56173 EX DE,HL Exchange the DE and HL registers.
56174 LD DE,1760 HL-=1760.
56177 SBC HL,DE
56179 EX DE,HL Exchange the DE and HL registers.
56180 POP HL Restore HL from the stack.
56181 JR Print_Numbers_4 Jump to Print_Numbers_4.
Print_Numbers_3 56183 INC D Increment D by one.
Print_Numbers_4 56184 DJNZ Print_Numbers_2 Decrease counter by one and loop back to Print_Numbers_2 until counter is zero.
56186 POP HL Restore HL, DE and BC from the stack.
56187 POP DE
56188 POP BC
56189 RET Return.
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