| ; ******************************************************* |
| ; Initialize stack pointer registers (in different modes) |
| ; ******************************************************* |
| |
| ; standard definitions of mode bits and interrupts in PSR |
| ;-------------------------------------------------------- |
| mode_usr EQU 0x10 |
| mode_fiq EQU 0x11 |
| mode_irq EQU 0x12 |
| mode_svc EQU 0x13 |
| mode_abt EQU 0x17 |
| mode_und EQU 0x1b |
| mode_sys EQU 0x1f |
| i_bit EQU 0x80 ; when I bit is set, IRQ is disabled |
| f_bit EQU 0x40 ; when F bit is set, IRQ is disabled |
| |
| ; initialize all stack pointer modes locations & sizes |
| ;----------------------------------------------------- |
| ;top_of_stacks EQU 0x307ffffc |
| ;;yb top_of_stacks EQU 0x3ffc |
| ;;top_of_stacks EQU 0x07fc |
| top_of_stacks EQU 0x07ffc |
| |
| len_fiq_stack EQU 0x20 |
| len_irq_stack EQU 0x20 |
| len_abt_stack EQU 0x20 |
| len_und_stack EQU 0x20 |
| len_svc_stack EQU 0x20 |
| len_sys_stack EQU 0x20 |
| len_usr_stack EQU 0x20 |
| |
| offset_fiq_stack EQU 0 |
| offset_irq_stack EQU offset_fiq_stack + len_irq_stack |
| offset_abt_stack EQU offset_irq_stack + len_abt_stack |
| offset_und_stack EQU offset_abt_stack + len_und_stack |
| offset_svc_stack EQU offset_und_stack + len_svc_stack |
| offset_sys_stack EQU offset_svc_stack + len_sys_stack |
| offset_usr_stack EQU offset_sys_stack + len_usr_stack |
| |
| hsel_high EQU 0x04 |
| main_osc_sel EQU 0x01 |
| |
| RfExtP1Bit EQU 0x04 |
| RfExtP2Bit EQU 0x08 |
| END |
