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UPD750004 Datasheet(PDF) 53 Page - Renesas Technology Corp |
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UPD750004 Datasheet(HTML) 53 Page - Renesas Technology Corp |
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53 / 86 page  µPD750004, 750006, 750008, 750004(A), 750006(A), 750008(A) 51 Data Sheet U10738EJ3V2DS Group Special Mne- monic SEL GETINotes 1, 2 Operand RBn MBn taddr Bytes 2 2 1 Machin- ing cycle 2 2 3 3 4 3 Skip condition Depends on the referenced instruction. Depends on the referenced instruction. Depends on the referenced instruction. Address- ing area *10 *10 Operation RBS ← n (n = 0 - 3) MBS ← n (n = 0, 1, 15) • µPD750004 When the TBR instruction is used PC11-0 ← (taddr)3-0 + (taddr + 1) When the TCALL instruction is used (SP - 4) (SP - 1) (SP - 2) ← PC11-0 (SP - 3) ← MBE, RBE, 0, 0 PC11-0 ← (taddr)3-0 + (taddr + 1) SP ← SP - 4 When an instruction other than the TBR and TCALL instructions is used Execution of (taddr)(taddr + 1) instruction • µPD750006, 750008 When the TBR instruction is used PC12-0 ← (taddr)4-0 + (taddr + 1) When the TCALL instruction is used (SP - 4) (SP - 1) (SP - 2) ← PC11-0 (SP - 3) ← MBE, RBE, 0, PC12 PC12-0 ← (taddr)4-0 + (taddr + 1) SP ← SP - 4 When an instruction other than the TBR and TCALL instructions is used Execution of (taddr)(taddr + 1) instruction • µPD750004 When the TBR instruction is used PC11-0 ← (taddr)3-0 + (taddr + 1) When the TCALL instruction is used (SP - 6) (SP - 3) (SP - 4) ← PC11-0 (SP - 5) ← 0, 0, 0, 0 (SP - 2) ← ×, ×, MBE, RBE PC11-0 ← (taddr)3-0 + (taddr + 1) SP ← SP - 6 When an instruction other than the TBR and TCALL instructions is used Execution of (taddr)(taddr + 1) instruction Notes 1. The shaded portion is supported in Mk ΙΙ mode only. The other portions are supported in Mk Ι mode only. 2. TBR and TCALL instructions are assembler pseudo instructions to define tables used for GETI instructions. ........................................................ ........................................................ ........................................................ ........................................................ ..................... ..................... ....................................................................... ....................................................................... ..................... |
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