diff options
Diffstat (limited to 'sw/z80/drivers/build/pio.asm')
| -rw-r--r-- | sw/z80/drivers/build/pio.asm | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/sw/z80/drivers/build/pio.asm b/sw/z80/drivers/build/pio.asm new file mode 100644 index 0000000..3045492 --- /dev/null +++ b/sw/z80/drivers/build/pio.asm @@ -0,0 +1,234 @@ +;-------------------------------------------------------- +; File Created by SDCC : free open source ANSI-C Compiler +; Version 3.6.0 #9615 (Linux) +;-------------------------------------------------------- + .module pio + .optsdcc -mz80 + +;-------------------------------------------------------- +; Public variables in this module +;-------------------------------------------------------- + .globl __pio_data + .globl __pio_control + .globl _pio_set_mode + .globl _pio_set_interrupts + .globl _pio_set_interrupts_mask + .globl _pio_read + .globl _pio_write +;-------------------------------------------------------- +; special function registers +;-------------------------------------------------------- +;-------------------------------------------------------- +; ram data +;-------------------------------------------------------- + .area _DATA +;-------------------------------------------------------- +; ram data +;-------------------------------------------------------- + .area _INITIALIZED +_pio_port: + .ds 2 +_pio_ctrl: + .ds 2 +;-------------------------------------------------------- +; absolute external ram data +;-------------------------------------------------------- + .area _DABS (ABS) +;-------------------------------------------------------- +; global & static initialisations +;-------------------------------------------------------- + .area _HOME + .area _GSINIT + .area _GSFINAL + .area _GSINIT +;-------------------------------------------------------- +; Home +;-------------------------------------------------------- + .area _HOME + .area _HOME +;-------------------------------------------------------- +; code +;-------------------------------------------------------- + .area _CODE +;pio.c:6: inline void _pio_data(int port, uint8_t data) +; --------------------------------- +; Function _pio_data +; --------------------------------- +__pio_data:: +;pio.c:8: *(pio_port + port) = data; + ld hl,#2 + add hl,sp + ld iy,#_pio_port + ld a,0 (iy) + add a, (hl) + ld c,a + ld a,1 (iy) + inc hl + adc a, (hl) + ld b,a + ld hl, #4+0 + add hl, sp + ld a, (hl) + ld (bc),a + ret +;pio.c:11: inline void _pio_control(int port, uint8_t cmd) +; --------------------------------- +; Function _pio_control +; --------------------------------- +__pio_control:: +;pio.c:13: *(pio_ctrl + port) = cmd; + ld hl,#2 + add hl,sp + ld iy,#_pio_ctrl + ld a,0 (iy) + add a, (hl) + ld c,a + ld a,1 (iy) + inc hl + adc a, (hl) + ld b,a + ld hl, #4+0 + add hl, sp + ld a, (hl) + ld (bc),a + ret +;pio.c:16: void pio_set_mode(int port, int mode, uint8_t io) +; --------------------------------- +; Function pio_set_mode +; --------------------------------- +_pio_set_mode:: +;pio.c:19: _pio_control(port, ((mode << 6) | 0x0F)); + ld hl, #4+0 + add hl, sp + ld a, (hl) + rrca + rrca + and a,#0xc0 + or a, #0x0f + ld c,a + pop de + pop hl + push hl + push de +;pio.c:13: *(pio_ctrl + port) = cmd; + ld iy,(_pio_ctrl) + ld e, l + ld d, h + add iy, de + ld 0 (iy), c +;pio.c:23: if (mode == PIO_MODE_BIT_IO) { + ld iy,#4 + add iy,sp + ld a,0 (iy) + sub a, #0x03 + ret NZ + ld a,1 (iy) + or a, a + ret NZ +;pio.c:24: _pio_control(port, io); + ld iy,#6 + add iy,sp + ld c,0 (iy) +;pio.c:13: *(pio_ctrl + port) = cmd; + ld de,(_pio_ctrl) + add hl,de + ld (hl),c +;pio.c:24: _pio_control(port, io); + ret +;pio.c:28: void pio_set_interrupts(int port, int control) +; --------------------------------- +; Function pio_set_interrupts +; --------------------------------- +_pio_set_interrupts:: +;pio.c:31: _pio_control(port, (control | 0x07)); + ld hl, #4+0 + add hl, sp + ld a, (hl) + or a, #0x07 + ld c,a + pop de + pop hl + push hl + push de +;pio.c:13: *(pio_ctrl + port) = cmd; + ld de,(_pio_ctrl) + add hl,de + ld (hl),c +;pio.c:31: _pio_control(port, (control | 0x07)); + ret +;pio.c:34: void pio_set_interrupts_mask(int port, int control, uint8_t mask) +; --------------------------------- +; Function pio_set_interrupts_mask +; --------------------------------- +_pio_set_interrupts_mask:: +;pio.c:38: _pio_control(port, (control | 0x17)); + ld hl, #4+0 + add hl, sp + ld a, (hl) + or a, #0x17 + ld c,a + pop de + pop hl + push hl + push de +;pio.c:13: *(pio_ctrl + port) = cmd; + ld iy,(_pio_ctrl) + ld e, l + ld d, h + add iy, de + ld 0 (iy), c +;pio.c:39: _pio_control(port, mask); + ld iy,#6 + add iy,sp + ld c,0 (iy) +;pio.c:13: *(pio_ctrl + port) = cmd; + ld de,(_pio_ctrl) + add hl,de + ld (hl),c +;pio.c:39: _pio_control(port, mask); + ret +;pio.c:42: uint8_t pio_read(int port) +; --------------------------------- +; Function pio_read +; --------------------------------- +_pio_read:: +;pio.c:44: return *(pio_port + port); + ld hl,#2 + add hl,sp + ld iy,#_pio_port + ld a,0 (iy) + add a, (hl) + ld c,a + ld a,1 (iy) + inc hl + adc a, (hl) + ld b,a + ld a,(bc) + ld l,a + ret +;pio.c:47: void pio_write(int port, uint8_t data) +; --------------------------------- +; Function pio_write +; --------------------------------- +_pio_write:: +;pio.c:49: _pio_data(port, data); + ld hl, #4+0 + add hl, sp + ld c, (hl) + pop de + pop hl + push hl + push de +;pio.c:8: *(pio_port + port) = data; + ld de,(_pio_port) + add hl,de + ld (hl),c +;pio.c:49: _pio_data(port, data); + ret + .area _CODE + .area _INITIALIZER +__xinit__pio_port: + .dw #0x4200 +__xinit__pio_ctrl: + .dw #0x4202 + .area _CABS (ABS) |