diff options
Diffstat (limited to 'src/kernel.S')
| -rw-r--r-- | src/kernel.S | 38 |
1 files changed, 8 insertions, 30 deletions
diff --git a/src/kernel.S b/src/kernel.S index 46c8fab..02d8a5d 100644 --- a/src/kernel.S +++ b/src/kernel.S @@ -3,10 +3,11 @@ .globl kernel_main kernel_main: push {lr} - bl uart_init + //bl uart_init + bl sysinit bl enable_irq bl enable_fiq - bl check_fiq_status + bl chk_irq_stat ldr r0, =os_info bl uart_string kernel_main.loop: @@ -14,33 +15,10 @@ kernel_main.loop: b kernel_main.loop pop {lr} -check_fiq_status: - push {lr} - mov r2, #0xB20C - movt r2, #0x3F00 - mov r3, #0xC1 - movt r3, #0 - str r3, [r2] - ldr r3, [r2] - push {r3} - mov r0, r3 - bl uart_hex - pop {r3} - tst r3, #0x80 - beq check_fiq_status.off - ldr r0, =fiq_on - bl uart_string - b check_fiq_status.exit -check_fiq_status.off: - ldr r0, =fiq_off - bl uart_string -check_fiq_status.exit: - pop {pc} - .section ".data" +.globl os_info os_info: - .asciz "Sergey Bilovytskyy's Real Time Operating System\n Version 0.0a\n Interrupt 01: uart rx interrupt\n Exit : Ctrl-A x\n Monitor : Ctrl-A c\n\n" -fiq_on: - .asciz "\nFIQ - Enabled\n" -fiq_off: - .asciz "\nFIQ - Disabled\n" + .asciz "\033[93mInitialized the Real Time Operating System\033[0m\n\033[96mName\033[0m: \033[94mTarvaOS\033[0m\n\033[96mVersion\033[0m: \033[95m0.0a\033[0m\n\nQEMU\n====\n Exit : Ctrl-A x\n Monitor : Ctrl-A c\n\n" +.globl cntfrq +cntfrq: + .word 0,0,0,0 |