* Get argument register index. */
| 35 | * Get argument register index. |
| 36 | */ |
| 37 | int getArgRegIdx(bool sysv, int argno) |
| 38 | { |
| 39 | switch (argno) |
| 40 | { |
| 41 | case 0: |
| 42 | return (sysv? RDI_IDX: RCX_IDX); |
| 43 | case 1: |
| 44 | return (sysv? RSI_IDX: RDX_IDX); |
| 45 | case 2: |
| 46 | return (sysv? RDX_IDX: R8_IDX); |
| 47 | case 3: |
| 48 | return (sysv? RCX_IDX: R9_IDX); |
| 49 | case 4: |
| 50 | return (sysv? R8_IDX: R10_IDX); |
| 51 | case 5: |
| 52 | return (sysv? R9_IDX: R11_IDX); |
| 53 | case 6: |
| 54 | return (sysv? R10_IDX: -1); |
| 55 | case 7: |
| 56 | return (sysv? R11_IDX: -1); |
| 57 | default: |
| 58 | return -1; |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | /* |
| 63 | * Convert a register number into a register. |