| %default {} |
| /* |
| * Specialized 32-bit binary operation |
| * |
| * Performs "r0 = r0 div r1". The selection between sdiv or the gcc helper |
| * depends on the compile time value of __ARM_ARCH_EXT_IDIV__ (defined for |
| * ARMv7 CPUs that have hardware division support). |
| * |
| * div-int/lit8 |
| * |
| */ |
| FETCH_S r3, 1 @ r3<- ssssCCBB (sign-extended for CC |
| mov r9, rINST, lsr #8 @ r9<- AA |
| and r2, r3, #255 @ r2<- BB |
| GET_VREG r0, r2 @ r0<- vBB |
| movs r1, r3, asr #8 @ r1<- ssssssCC (sign extended) |
| @cmp r1, #0 @ is second operand zero? |
| beq common_errDivideByZero |
| FETCH_ADVANCE_INST 2 @ advance rPC, load rINST |
| |
| #ifdef __ARM_ARCH_EXT_IDIV__ |
| sdiv r0, r0, r1 @ r0<- op |
| #else |
| bl __aeabi_idiv @ r0<- op, r0-r3 changed |
| #endif |
| GET_INST_OPCODE ip @ extract opcode from rINST |
| SET_VREG r0, r9 @ vAA<- r0 |
| GOTO_OPCODE ip @ jump to next instruction |
| /* 10-12 instructions */ |